LUMEN TECHNOLOGIES, INC., 10-K filed on 2/24/2022
Annual Report
v3.22.0.1
Cover Page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Feb. 22, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-7784    
Entity Registrant Name Lumen Technologies, Inc.    
Entity Incorporation, State or Country Code LA    
Entity Tax Identification Number 72-0651161    
Entity Address, Address Line One 100 CenturyLink Drive,    
Entity Address, City or Town Monroe,    
Entity Address, State or Province LA    
Entity Address, Postal Zip Code 71203    
City Area Code 318    
Local Phone Number 388-9000    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   1,023,372,224  
Entity Public Float     $ 14.9
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE:
Portions of the Registrant's Proxy Statement to be furnished in connection with the 2022 annual meeting of shareholders are incorporated by reference in Part III of this report.
   
Entity Central Index Key 0000018926    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Common Stock      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $1.00 per share    
Trading Symbol LUMN    
Security Exchange Name NYSE    
Preferred Stock      
Document Information [Line Items]      
Title of 12(b) Security Preferred Stock Purchase Rights    
No Trading Symbol Flag true    
Security Exchange Name NYSE    
v3.22.0.1
Audit Information
12 Months Ended
Dec. 31, 2021
Audit Information [Abstract]  
Auditor Name KPMG LLP
Auditor Location Denver, Colorado
Auditor Firm ID 185
v3.22.0.1
CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement [Abstract]      
OPERATING REVENUE $ 19,687,000,000 $ 20,712,000,000 $ 21,458,000,000
OPERATING EXPENSES      
Cost of services and products (exclusive of depreciation and amortization) 8,488,000,000 8,934,000,000 9,134,000,000
Selling, general and administrative 2,895,000,000 3,464,000,000 3,715,000,000
Depreciation and amortization 4,019,000,000 4,710,000,000 4,829,000,000
Goodwill impairment 0 2,642,000,000 6,506,000,000
Total operating expenses 15,402,000,000 19,750,000,000 24,184,000,000
OPERATING INCOME (LOSS) 4,285,000,000 962,000,000 (2,726,000,000)
OTHER EXPENSE      
Interest expense (1,522,000,000) (1,668,000,000) (2,021,000,000)
Other expense, net (62,000,000) (76,000,000) (19,000,000)
Total other expense, net (1,584,000,000) (1,744,000,000) (2,040,000,000)
INCOME (LOSS) BEFORE INCOME TAXES 2,701,000,000 (782,000,000) (4,766,000,000)
Income tax expense 668,000,000 450,000,000 503,000,000
NET INCOME (LOSS) $ 2,033,000,000 $ (1,232,000,000) $ (5,269,000,000)
BASIC AND DILUTED EARNINGS (LOSS) PER COMMON SHARE      
BASIC (in dollars per share) $ 1.92 $ (1.14) $ (4.92)
DILUTED (in dollars per share) $ 1.91 $ (1.14) $ (4.92)
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING      
BASIC (in shares) 1,059,541 1,079,130 1,071,441
DILUTED (in shares) 1,066,778 1,079,130 1,071,441
v3.22.0.1
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement of Comprehensive Income [Abstract]      
NET INCOME (LOSS) $ 2,033 $ (1,232) $ (5,269)
Items related to employee benefit plans:      
Change in net actuarial loss, net of $(134), $26, and $60 tax 424 (92) (195)
Settlement charges recognized in net income (loss), net of $(93), $— and $— tax 290 0 0
Change in net prior service cost, net of $(5), $(12), and $(4) tax 14 33 13
Curtailment loss, net of $—, $(1), and $— tax 0 3 0
Reclassification of realized loss on interest rate swaps to net income (loss), net of $(20), $(16), and $— tax 63 46 2
Unrealized holding loss on interest rate swaps, net of $—, $29, and $12 tax (1) (86) (41)
Foreign currency translation adjustment, net of $30, $(43), and $(6) tax (135) (37) 2
Net Change in AOCL 655 (133) (219)
COMPREHENSIVE INCOME (LOSS) $ 2,688 $ (1,365) $ (5,488)
v3.22.0.1
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement of Comprehensive Income [Abstract]      
Change in net actuarial loss (gain), tax $ (134) $ 26 $ 60
Settlement charge, tax (93) 0 0
Change in net prior service cost, tax (5) (12) (4)
Curtailment loss, tax 0 (1) 0
Reclassification of realized loss on interest rate swaps to net income, tax (20) (16) 0
Unrealized holding loss on interest rate swaps, tax 0 29 12
Foreign currency translation adjustment and other, tax $ 30 $ (43) $ (6)
v3.22.0.1
CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
CURRENT ASSETS    
Cash and cash equivalents $ 354 $ 406
Accounts receivable, less allowance of $114 and $191 1,544 1,962
Assets held for sale 8,809 0
Other 829 808
Total current assets 11,536 3,176
Property, plant and equipment, net of accumulated depreciation of $19,271 and $31,596 20,895 26,338
GOODWILL AND OTHER ASSETS    
Goodwill 15,986 18,870
Other intangible assets, net 6,970 8,219
Other, net 2,606 2,791
Total goodwill and other assets 25,562 29,880
TOTAL ASSETS 57,993 59,394
CURRENT LIABILITIES    
Current maturities of long-term debt 1,554 2,427
Accounts payable 758 1,134
Accrued expenses and other liabilities    
Salaries and benefits 860 1,008
Income and other taxes 228 314
Current operating lease liabilities 385 379
Interest 278 291
Other 232 328
Liabilities held for sale 2,257 0
Current portion of deferred revenue 617 753
Total current liabilities 7,169 6,634
LONG-TERM DEBT 27,428 29,410
DEFERRED CREDITS AND OTHER LIABILITIES    
Deferred income taxes, net 4,049 3,342
Benefit plan obligations, net 3,710 4,556
Other 3,797 4,290
Total deferred credits and other liabilities 11,556 12,188
COMMITMENTS AND CONTINGENCIES (Note 18)
STOCKHOLDERS' EQUITY    
Preferred stock — non-redeemable, $25.00 par value, authorized 2,000 and 2,000 shares, issued and outstanding 7 and 7 shares 0 0
Common stock, $1.00 par value, authorized 2,200,000 and 2,200,000 shares, issued and outstanding 1,023,512 and 1,096,921 shares 1,024 1,097
Additional paid-in capital 18,972 20,909
Accumulated other comprehensive loss (2,158) (2,813)
Accumulated deficit (5,998) (8,031)
Total stockholders' equity 11,840 11,162
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY $ 57,993 $ 59,394
v3.22.0.1
CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Accounts receivable, allowance $ 114 $ 191
Property, plant and equipment, accumulated depreciation $ 19,271 $ 31,596
Preferred stock-non-redeemable, par value (in dollars per share) $ 25.00 $ 25.00
Preferred stock-non-redeemable, authorized shares (in shares) 2,000,000 2,000,000
Preferred stock-non-redeemable, issued shares (in shares) 7,000 7,000
Preferred stock-non-redeemable, outstanding shares (in shares) 7,000 7,000
Common stock, par value (in dollars per share) $ 1.00 $ 1.00
Common stock, authorized shares (in shares) 2,200,000,000 2,200,000,000
Common stock, issued shares (in shares) 1,023,512,000 1,096,921,000
Common stock, outstanding shares (in shares) 1,023,512,000 1,096,921,000
v3.22.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
OPERATING ACTIVITIES      
Net income (loss) $ 2,033 $ (1,232) $ (5,269)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation and amortization 4,019 4,710 4,829
Goodwill impairment 0 2,642 6,506
Deferred income taxes 598 366 440
Provision for uncollectible accounts 105 189 145
Net (gain) loss on early retirement and modification of debt (8) 105 (72)
Stock-based compensation 120 175 162
Changes in current assets and liabilities:      
Accounts receivable (8) 115 (5)
Accounts payable (261) (543) (261)
Accrued income and other taxes (69) 27 20
Other current assets and liabilities, net (353) (262) (32)
Retirement benefits 163 (111) (12)
Changes in other noncurrent assets and liabilities, net 283 246 245
Other, net (121) 97 (16)
Net cash provided by operating activities 6,501 6,524 6,680
INVESTING ACTIVITIES      
Capital expenditures (2,900) (3,729) (3,628)
Proceeds from sale of property, plant and equipment and other assets 135 153 93
Other, net 53 12 (35)
Net cash used in investing activities (2,712) (3,564) (3,570)
FINANCING ACTIVITIES      
Net proceeds from issuance of long-term debt 1,881 4,361 3,707
Payments of long-term debt (3,598) (7,315) (4,157)
Net proceeds from (payments on) revolving line of credit 50 (100) (300)
Dividends paid (1,087) (1,109) (1,100)
Repurchases of common stock (1,000) 0 0
Other, net (53) (87) (61)
Net cash used in financing activities (3,807) (4,250) (1,911)
Net (decrease) increase in cash, cash equivalents and restricted cash (18) (1,290) 1,199
Cash, cash equivalents and restricted cash at beginning of period 427 1,717 518
Cash, cash equivalents and restricted cash at end of period 409 427 1,717
Supplemental cash flow information:      
Income taxes (paid) refunded, net (112) 28 34
Interest paid (net of capitalized interest of $53, $75 and $72) (1,487) (1,627) (2,028)
Supplemental non-cash information regarding investing activities:      
Sale of property, plant and equipment in exchange for note receivable 56 0 0
Supplemental non-cash information regarding financing activities:      
Purchase of software subscription in exchange for installment debt 77 0 0
Cash, cash equivalents and restricted cash:      
Cash and cash equivalents 354 406 1,690
Cash and cash equivalents included in Assets held for sale 40 0 0
Restricted cash included in Other current assets 2 3 3
Restricted cash included in Other, net noncurrent assets 13 18 24
Total $ 409 $ 427 $ 1,717
v3.22.0.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement of Cash Flows [Abstract]      
Capitalized interest $ 53 $ 75 $ 72
v3.22.0.1
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Millions
Total
COMMON STOCK
ADDITIONAL PAID-IN CAPITAL
ACCUMULATED OTHER COMPREHENSIVE LOSS
ACCUMULATED DEFICIT
ACCUMULATED DEFICIT
Cumulative Effect, Period of Adoption, Adjustment
Balance at beginning of period at Dec. 31, 2018   $ 1,080 $ 22,852 $ (2,461) $ (1,643) $ 96
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock through dividend reinvestment, incentive and benefit plans   10        
Repurchases of common stock   0 0      
Shares withheld to satisfy tax withholdings     (37)      
Stock-based compensation and other, net     163      
Dividends declared     (1,104)   2  
Other comprehensive income (loss) $ (219)     (219)    
Net income (loss) (5,269)       (5,269)  
Balance at end of period at Dec. 31, 2019 $ 13,470 1,090 21,874 (2,680) (6,814) $ 9
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 1.00          
Accounting Standards Update [Extensible List]           Accounting Standards Update 2016-13 [Member]
Issuance of common stock through dividend reinvestment, incentive and benefit plans   7        
Repurchases of common stock   0 0      
Shares withheld to satisfy tax withholdings     (40)      
Stock-based compensation and other, net     187      
Dividends declared     (1,112)   6  
Other comprehensive income (loss) $ (133)     (133)    
Net income (loss) (1,232)       (1,232)  
Balance at end of period at Dec. 31, 2020 $ 11,162 1,097 20,909 (2,813) (8,031)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 1.00          
Issuance of common stock through dividend reinvestment, incentive and benefit plans   8        
Repurchases of common stock $ (1,000) (81) (919)      
Shares withheld to satisfy tax withholdings     (45)      
Stock-based compensation and other, net     122      
Dividends declared     (1,095)   0  
Other comprehensive income (loss) 655     655    
Net income (loss) 2,033       2,033  
Balance at end of period at Dec. 31, 2021 $ 11,840 $ 1,024 $ 18,972 $ (2,158) $ (5,998)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share) $ 1.00          
v3.22.0.1
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (PARENTHETICAL) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income tax expense $ 668 $ 450 $ 503  
ACCUMULATED DEFICIT        
Income tax expense     2 $ 37
ACCUMULATED DEFICIT | Cumulative Effect, Period of Adoption, Adjustment        
Income tax expense     $ 2 $ (37)
v3.22.0.1
Background and Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Background and Summary of Significant Accounting Policies Background and Summary of Significant Accounting Policies
General

We are an international facilities-based technology and communications company engaged primarily in providing a broad array of integrated products and services to our business and mass markets customers. Our specific products and services are detailed in Note 4—Revenue Recognition.

Basis of Presentation

The accompanying consolidated financial statements include our accounts and the accounts of our subsidiaries in which we have a controlling interest. Intercompany amounts and transactions with our consolidated subsidiaries have been eliminated. In connection with our acquisition of Level 3 in 2017, we acquired its deconsolidated Venezuela subsidiary and due to exchange restrictions and other conditions have assigned no value to this subsidiary's assets. Additionally, we have excluded this subsidiary from our consolidated financial statements.

To simplify the overall presentation of our consolidated financial statements, we report immaterial amounts attributable to noncontrolling interests in certain of our subsidiaries as follows: (i) income attributable to noncontrolling interests in other expense, net, (ii) equity attributable to noncontrolling interests in additional paid-in capital and (iii) cash flows attributable to noncontrolling interests in other, net financing activities.

We reclassified certain prior period amounts to conform to the current period presentation, including the categorization of our revenue and expenses in our segment reporting for 2021, 2020 and 2019. See Note 17—Segment Information for additional information. These changes had no impact on total operating revenue, total operating expenses or net income (loss) for any period.

Operating Expenses

Our current definitions of operating expenses are as follows:

Cost of services and products (exclusive of depreciation and amortization) are expenses incurred in providing products and services to our customers. These expenses include: employee-related expenses directly attributable to operating and maintaining our network (such as salaries, wages, benefits and professional fees); facilities expenses (which include third-party telecommunications expenses we incur for using other carriers' networks to provide services to our customers); rents and utilities expenses; equipment sales expenses (such as data integration and modem expenses); and other expenses directly related to our operations; and

Selling, general and administrative expenses are corporate overhead and other operating expenses. These expenses include: employee-related expenses (such as salaries, wages, internal commissions, benefits and professional fees) directly attributable to selling products or services and employee-related expenses for administrative functions; marketing and advertising; property and other operating taxes and fees; external commissions; litigation expenses associated with general matters; bad debt expense; and other selling, general and administrative expenses.

These expense classifications may not be comparable to those of other companies.
Summary of Significant Accounting Policies

Use of Estimates

Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. These accounting principles require us to make certain estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions we make when accounting for specific items and matters are reasonable, based on information available at the time they are made. These estimates, judgments and assumptions can materially affect the reported amounts of assets, liabilities and components of stockholders' equity as of the dates of the consolidated balance sheets, as well as the reported amounts of revenue, expenses and components of cash flows during the periods presented in our other consolidated financial statements. We also make estimates in our assessments of potential losses in relation to threatened or pending tax and legal matters. See Note 16—Income Taxes and Note 18—Commitments, Contingencies and Other Items for additional information.

For matters not related to income taxes, if a loss contingency is considered probable and the amount can be reasonably estimated, we recognize an expense for the estimated loss. If we have the potential to recover a portion of the estimated loss from a third party, we make a separate assessment of recoverability and reduce the estimated loss if recovery is also deemed probable.

For matters related to income taxes, if we determine that the impact of an uncertain tax position is more likely than not to be sustained upon audit by the relevant taxing authority, then we recognize a benefit for the largest amount that is more likely than not to be sustained. No portion of an uncertain tax position will be recognized if the position has less than a 50% likelihood of being sustained. Interest is recognized on the amount of unrecognized benefit from uncertain tax positions.

For all of these and other matters, actual results could differ materially from our estimates.

Assets Held for Sale

We classify assets and related liabilities as held for sale when: (i) management has committed to a plan to sell the assets, (ii) the net assets are available for immediate sale, (iii) there is an active program to locate a buyer and (iv) the sale and transfer of the net assets is probable within one year. Assets and liabilities held for sale are presented separately on our consolidated balance sheets with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. Depreciation of property, plant and equipment and amortization of finite-lived intangible assets and right-of-use assets are not recorded while these assets are classified as held for sale. For each period that assets are classified as being held for sale, they are tested for recoverability. Unless otherwise specified, the amounts and information presented in the notes do not include assets and liabilities that have been reclassified as held for sale as of December 31, 2021. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for additional information.

Revenue Recognition

We earn most of our consolidated revenue from contracts with customers, primarily through the provision of communications and other services. Revenue from contracts with customers is accounted for under Accounting Standards Codification ("ASC") 606. We also earn revenue from leasing arrangements (primarily fiber capacity and colocation agreements) and governmental subsidy payments, which are not accounted for under ASC 606.

Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to receive in exchange for those goods or services. Revenue is recognized based on the following five-step model:

Identification of the contract with a customer;

Identification of the performance obligations in the contract;

Determination of the transaction price;

Allocation of the transaction price to the performance obligations in the contract; and
Recognition of revenue when, or as, we satisfy a performance obligation.

We provide an array of communications services to business and residential customers, including local voice, VPN, Ethernet, data, broadband, private line (including special access), network access, transport, voice, information technology, video and other ancillary services. We provide these services to a wide range of businesses, including global, enterprise, wholesale, government, and small and medium business customers. Certain contracts also include the sale of equipment, which is not significant to our business.

We recognize revenue for services when we provide the applicable service or when control of a product is transferred. Recognition of certain payments received in advance of services being provided is deferred. These advance payments may include certain activation and certain installation charges. If the activation and installation charges are not separate performance obligations, we recognize them as revenue over the actual or expected contract term using historical experience, which ranges from one to five years depending on the service. In most cases, termination fees or other fees on existing contracts that are negotiated in conjunction with new contracts are deferred and recognized over the new contract term.

For access services, we generally bill fixed monthly charges one month in advance to customers and recognize revenue as service is provided over the contract term in alignment with the customer's receipt of service. For usage and other ancillary services, we generally bill in arrears and recognize revenue as usage or delivery occurs. In most cases, the amount invoiced for our service offerings constitutes the price that would be billed on a standalone basis.

In certain cases, customers may be permitted to modify their contracts. We evaluate the change in scope or price to identify whether the modification should be treated as a separate contract, whether the modification is a termination of the existing contract and creation of a new contract, or if it is a change to the existing contract.

Customer contracts are evaluated to determine whether the performance obligations are separable. If the performance obligations are deemed separable and separate earnings processes exist, the total transaction price that we expect to receive with the customer is allocated to each performance obligation based on its relative standalone selling price. The revenue associated with each performance obligation is then recognized as earned.

We periodically sell optical capacity on our network. These transactions are generally structured as indefeasible rights of use, commonly referred to as IRUs, which are the exclusive right to use a specified amount of capacity or fiber for a specified term, typically 10 to 20 years. In most cases, we account for the cash consideration received on transfers of optical capacity as ASC 606 revenue which is adjusted for the time value of money and is recognized ratably over the term of the agreement. Cash consideration received on transfers of dark fiber is accounted for as non-ASC 606 lease revenue, which we also recognize ratably over the term of the agreement. We do not recognize revenue on any contemporaneous exchanges of our optical capacity assets for other non-owned optical capacity assets.

In connection with offering products and services provided to the end user by third-party vendors, we review the relationship between us, the vendor and the end user to assess whether revenue should be reported on a gross or net basis. In assessing whether revenue should be reported on a gross or net basis, we consider whether we act as a principal in the transaction and control the goods and services used to fulfill the performance obligations associated with the transaction.

We have service level commitments pursuant to contracts with certain of our customers. To the extent that we determine that such service levels were not achieved or may not have been achieved, we estimate the amount of credits to be issued and record a corresponding reduction to revenue in the period that the service level commitment was not met.

Customer payments are made based on billing schedules included in our customer contracts, which is typically on a monthly basis.
We defer (or capitalize) incremental contract acquisition and fulfillment costs and recognize (or amortize) such costs over the average contract life. Our deferred contract costs for our customers have average amortization periods of approximately 30 months for mass markets customers and 29 months for business customers. These deferred costs are periodically monitored to reflect any significant change in assumptions.

See Note 4—Revenue Recognition for additional information.

Advertising Costs

Costs related to advertising are expensed as incurred and included in selling, general and administrative expenses in our consolidated statements of operations. Our advertising expense was $56 million, $56 million and $62 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Legal Costs

In the normal course of our business, we incur costs to hire and retain external legal counsel to advise us on regulatory, litigation and other matters. Subject to certain exceptions, we expense these costs as the related services are received.

Income Taxes

We file a consolidated federal income tax return with our eligible subsidiaries. The provision for income taxes reflects taxes currently payable, tax consequences deferred to future periods and adjustments to our liabilities for uncertain tax positions. We record deferred income tax assets and liabilities reflecting future tax consequences attributable to tax net operating loss carryforwards ("NOLs"), tax credit carryforwards and differences between the financial statement carrying value of assets and liabilities and the tax basis of those assets and liabilities. Deferred taxes are computed using enacted tax rates expected to apply in the year in which the differences are expected to affect taxable income. The effect on deferred income tax assets and liabilities of a change in tax rate is recognized in earnings in the period that includes the enactment date.

We establish valuation allowances when necessary to reduce deferred income tax assets to the amounts that we believe are more likely than not to be recovered. Each quarter we evaluate the need to retain or adjust each valuation allowance on our deferred tax assets. See Note 16—Income Taxes for additional information.

Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments that are readily convertible into cash and are not subject to significant risk from fluctuations in interest rates. As a result, the value at which cash and cash equivalents are reported in our consolidated financial statements approximates their fair value. In evaluating investments for classification as cash equivalents, we require that individual securities have original maturities of ninety days or less and that individual investment funds have dollar-weighted average maturities of ninety days or less. To preserve capital and maintain liquidity, we invest with financial institutions we deem to be of sound financial condition and in high quality and relatively risk-free investment products. Our cash investment policy limits the concentration of investments with specific financial institutions or among certain products and includes criteria related to credit worthiness of any particular financial institution.

Book overdrafts occur when we have issued checks but they have not yet been presented to our controlled disbursement bank accounts for payment. Disbursement bank accounts allow us to delay funding of issued checks until the checks are presented for payment. Until the issued checks are presented for payment, the book overdrafts are included in accounts payable on our consolidated balance sheets. This activity is included in the operating activities section in our consolidated statements of cash flows. There were no book overdrafts included in accounts payable at December 31, 2021 or 2020.
Restricted Cash

Restricted cash consists primarily of cash and investments that collateralize our outstanding letters of credit and certain performance and operating obligations. Restricted cash and securities are recorded as current or non-current assets in the consolidated balance sheets depending on the duration of the restriction and the purpose for which the restriction exists. Restricted securities are stated at cost which approximated their fair value as of December 31, 2021 and 2020.

Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recognized based upon the amount due from customers for the services provided or at cost for purchased and other receivables, less an allowance for credit losses. We use a loss rate method to estimate our allowance for credit losses. For more information on our methodology for estimating our allowance for credit losses, see Note 6—Credit Losses on Financial Instruments.

We generally consider our accounts past due if they are outstanding over 30 days. Our past due accounts are written off against our allowance for credit losses when collection is considered to be not probable. Any recoveries of accounts previously written off are generally recognized as a reduction in bad debt expense in the period received. The carrying value of accounts receivable net of the allowance for credit losses approximates fair value. Accounts receivable balances acquired in a business combination are recorded at fair value for all balances receivable at the acquisition date and at the invoiced amount for those amounts invoiced after the acquisition date.

Property, Plant and Equipment

We record property, plant and equipment acquired in connection with our acquisitions based on its estimated fair value as of its acquisition date plus the estimated value of any associated legally or contractually required retirement obligations. We record purchased and constructed property, plant and equipment at cost, plus the estimated value of any associated legally or contractually required retirement obligations. We depreciate the majority of our property, plant and equipment using the straight-line group method over the estimated useful lives of groups of assets, but depreciate certain of our assets using the straight-line method over the estimated useful lives of the specific asset. Under the straight-line group method, assets dedicated to providing telecommunications services (which comprise the majority of our property, plant and equipment) that have similar physical characteristics, use and expected useful lives are pooled for purposes of depreciation and tracking. The equal life group procedure is used to establish each pool's average remaining useful life. Generally, under the straight-line group method, when an asset is sold or retired in the course of normal business activities, the cost is deducted from property, plant and equipment and charged to accumulated depreciation without recognition of a gain or loss. A gain or loss is recognized in our consolidated statements of operations only if a disposal is unusual. Leasehold improvements are amortized over the shorter of the useful lives of the assets or the expected lease term. Expenditures for maintenance and repairs are expensed as incurred. Interest is capitalized during the construction phase of network and other internal-use capital projects. Employee-related costs for construction of network and other internal use assets are also capitalized during the construction phase. Property, plant and equipment supplies used internally are carried at average cost, except for significant individual items which are carried at actual cost.

We perform annual internal reviews to evaluate the reasonableness of the depreciable lives for our property, plant and equipment. Our reviews utilize models that take into account actual usage, physical wear and tear, replacement history, assumptions about technology evolution and, in certain instances, actuarially determined probabilities to estimate the remaining useful life of our asset base. Our remaining useful life assessments evaluate the possible loss in service value of assets that may precede the physical retirement. Assets shared among many customers may lose service value as those customers reduce their use of the asset. However, the asset is not retired until all customers no longer utilize the asset and we determine there is no alternative use for the asset.

We have asset retirement obligations associated with the legally or contractually required removal of a limited group of property, plant and equipment assets from leased properties and the disposal of certain hazardous materials present in our owned properties. When an asset retirement obligation is identified, usually in association with the acquisition of the asset, we record the fair value of the obligation as a liability. The fair value of the obligation is also capitalized as property, plant and equipment and then amortized over the estimated remaining useful life of the associated asset. Where the removal obligation is not legally binding, the net cost to remove assets is expensed in the period in which the costs are actually incurred.
We review long-lived tangible assets for impairment whenever facts and circumstances indicate that the carrying amounts of the assets may not be recoverable. For assessment purposes, long-lived assets are grouped with other assets and liabilities at the lowest identifiable level for which we generate cash flows independently of other groups of assets and liabilities, absent a material change in operations. An impairment loss is recognized only if the carrying amount of the asset group is not recoverable and exceeds its estimated fair value. Recoverability of the asset group to be held and used is assessed by comparing the carrying amount of the asset group to the estimated undiscounted future net cash flows expected to be generated by the asset group. If the asset group's carrying value is not recoverable, we recognize an impairment charge for the amount by which the carrying amount of the asset group exceeds its estimated fair value.

Goodwill, Customer Relationships and Other Intangible Assets

Intangible assets arising from business combinations, such as goodwill, customer relationships, capitalized software, trademarks and trade names, are initially recorded at estimated fair value. We amortize customer relationships primarily over an estimated life of 7 to 14 years, using the straight-line method, depending on the type of customer. Certain customer relationship intangible assets became fully amortized at the end of the first quarter 2021 using the sum-of-years-digits method, which is no longer used. We amortize capitalized software using the straight-line method primarily over estimated lives ranging up to 7 years. We amortize our other intangible assets using the straight-line method over an estimated life of 4 to 20 years. Other intangible assets not arising from business combinations are initially recorded at cost. Where there are no legal, regulatory, contractual or other factors that would reasonably limit the useful life of an intangible asset, we classify the intangible asset as indefinite-lived and such intangible assets are not amortized.

Internally used software, whether purchased or developed by us, is capitalized and amortized using the straight-line method over its estimated useful life. We have capitalized certain costs associated with software such as costs of employees devoted to software development and external direct costs for materials and services. Costs associated with software to be used for internal purposes are expensed until the point at which the project has reached the development stage. Subsequent additions, modifications or upgrades to internal-use software are capitalized only to the extent that they allow the software to perform a task it previously did not perform. Software maintenance, data conversion and training costs are expensed in the period in which they are incurred. We review the remaining economic lives of our capitalized software annually. Capitalized software is included in other intangible assets, net, in our consolidated balance sheets.

Our long-lived intangible assets, other than goodwill, with indefinite lives are assessed for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be an impairment. These assets are carried at the estimated fair value at the time of acquisition and assets not acquired in acquisitions are recorded at historical cost. However, if their estimated fair value is less than the carrying amount, we recognize an impairment charge for the amount by which the carrying amount of these assets exceeds their estimated fair value.

We are required to assess goodwill for impairment at least annually, or more frequently, if an event occurs or circumstances change that indicates it is more likely than not that the fair values of any of our reporting units were less than their carrying values. We are required to write-down the value of goodwill in periods in which the recorded carrying value of equity exceeds the fair value of equity. Our reporting units are not discrete legal entities with discrete full financial statements. Therefore, the equity carrying value and future cash flows are assessed each time a goodwill impairment assessment is performed on a reporting unit. To do so, we assign our assets, liabilities and cash flows to reporting units using reasonable and consistent allocation methodologies, which entail various estimates, judgments and assumptions.

We are required to reassign goodwill to reporting units whenever reorganizations of our internal reporting structure changes the composition of our reporting units. Goodwill is reassigned to the reporting units using a relative fair value approach. When the fair value of a reporting unit is available, we allocate goodwill based on the relative fair value of the reporting units. When fair value is not available, we utilize an alternative allocation methodology that represents a reasonable approximation of the fair value of the operations being reorganized.

For more information, see Note 3—Goodwill, Customer Relationships and Other Intangible Assets.
Derivatives and Hedging

From time to time we have used derivative instruments to hedge exposure to interest rate risks arising from fluctuation in interest rates. We account for derivative instruments in accordance with ASC 815, Derivatives and Hedging, which establishes accounting and reporting standards for derivative instruments. We do not use derivative financial instruments for speculative purposes.
Derivatives are recognized in the consolidated balance sheets at their fair values. When we become a party to a derivative instrument and intend to apply hedge accounting, we formally document the hedge relationship and the risk management objective for undertaking the hedge which includes designating the instrument for financial reporting purposes as a fair value hedge, a cash flow hedge, or a net investment hedge.
We evaluate the effectiveness of our variable-to-fixed interest rate swap agreements described in Note 15—Derivative Financial Instruments (designated as cash-flow hedges) qualitatively on a quarterly basis. The change in the fair value of the interest rate swaps is reflected in Accumulated Other Comprehensive Loss (“AOCI”) and is subsequently reclassified into earnings in the period the hedged transaction affects earnings, by virtue of qualifying as effective cash flow hedges. For more information see Note 15—Derivative Financial Instruments.

Pension and Post-Retirement Benefits

We recognize the funded status of our defined benefit and post-retirement plans as an asset or a liability on our consolidated balance sheets. Each year's actuarial gains or losses are a component of our other comprehensive loss, which is then included in our accumulated other comprehensive loss. Pension and post-retirement benefit expenses are recognized over the period in which the employee renders service and becomes eligible to receive benefits. We make significant assumptions (including the discount rate, expected rate of return on plan assets, mortality and health care trend rates) in computing the pension and post-retirement benefits expense and obligations. See Note 11—Employee Benefits for additional information.

Foreign Currency

Local currencies of our foreign subsidiaries are the functional currencies for financial reporting purposes except for certain foreign subsidiaries, primarily in Latin America. For operations outside the United States that have functional currencies other than the U.S. dollar, assets and liabilities are translated to U.S. dollars at period-end exchange rates, and revenue, expenses and cash flows are translated using average monthly exchange rates. A significant portion of our non-United States subsidiaries use either the British pound, the Euro or the Brazilian Real as their functional currency, each of which experienced significant fluctuations against the U.S. dollar during the years ended December 31, 2021, 2020 and 2019. We recognize foreign currency translation gains and losses as a component of accumulated other comprehensive loss in stockholders' equity and in our consolidated statements of comprehensive income (loss) in accordance with accounting guidance for foreign currency translation. Prior to the announcement of our divestitures as discussed in Note 2—Planned Divestiture of the Latin American and ILEC Businesses, we considered the majority of our investments in our foreign subsidiaries to be long-term in nature. Our foreign currency transaction gains (losses), including where transactions with our non-United States subsidiaries are not considered to be long-term in nature, are included within other expense, net on our consolidated statements of operations. See the description of our Assets Held for Sale policy above for more information on assets in foreign subsidiaries to be divested.

Common Stock

As of December 31, 2021, we had 36 million shares authorized for future issuance under our equity incentive plans.

Preferred Stock

Holders of outstanding Lumen Technologies preferred stock are entitled to receive cumulative dividends, receive preferential distributions equal to $25 per share plus unpaid dividends upon Lumen's liquidation and vote as a single class with the holders of common stock.
Section 382 Rights Plan

We maintain a Section 382 Rights Plan to protect our U.S. federal net operating loss carryforwards from certain Internal Revenue Code Section 382 limitations. Under the plan, one preferred stock purchase right was distributed for each share of our outstanding common stock as of the close of business on February 25, 2019, and those rights currently trade in tandem with the common stock until they expire or detach under the plan. This plan was designed to deter trading that would result in a change of control (as defined in Code Section 382), and therefore protect our ability to use our historical federal net operating losses in the future.

Dividends

The declaration and payment of dividends is at the discretion of our Board of Directors.

Recently Adopted Accounting Pronouncements

During 2021, we adopted Accounting Standards Update ("ASU") 2020-09, "Debt (Topic 470) Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762" ("ASU 2020-09"), ASU 2020-01, "Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815)" ("ASU 2020-01"), and ASU 2019-12, "Simplifying the Accounting for Income Taxes (Topic 740)" ("ASU 2019-12"). During 2020, we adopted ASU 2016-13, "Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"). During 2019, we adopted ASU 2016-02, "Leases (ASC 842)" ("ASU 2016-02").

Each of these is described further below.

Debt

On January 1, 2021, we adopted ASU 2020-09. This ASU amends and supersedes various SEC guidance to reflect SEC Release No. 33-10762, which includes amendments to the financial disclosure requirements applicable to registered debt offerings that include credit enhancements, such as subsidiary guarantees. The adoption of ASU 2020-09 did not have a material impact to our consolidated financial statements.

Investments

On January 1, 2021, we adopted ASU 2020-01. This ASU, among other things, clarifies that a company should consider observable transactions that require a company to either apply or discontinue the equity method of accounting under Topic 323, Investments - Equity Method and Joint Ventures, for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. As of December 31, 2021, we determined there was no application or discontinuation of the equity method during the reporting periods covered in this report. The adoption of ASU 2020-01 did not have a material impact to our consolidated financial statements.

Income Taxes

On January 1, 2021, we adopted ASU 2019-12. This ASU removes certain exceptions for investments, intra-period allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. The adoption of ASU 2019-12 did not have a material impact to our consolidated financial statements.

Measurement of Credit Losses on Financial Instruments

We adopted ASU 2016-13 on January 1, 2020, and recognized a cumulative adjustment to our accumulated deficit as of the date of adoption of $9 million, net of tax effect of $2 million. Please refer to Note 6—Credit Losses on Financial Instruments for more information.
Leases

We adopted ASU 2016-02 on January 1, 2019, using the non-comparative transition option pursuant to ASU 2018-11 and recognized ASC 842's cumulative effect transition adjustment (discussed below) as of January 1, 2019. In addition, we elected to apply the practical expedients permitted under the transition guidance within the new standard, which among other things (i) allowed us to carry forward the historical lease classification; (ii) did not require us to reassess whether any expired or existing contracts are or contain leases under the new definition of a lease; and (iii) did not require us to reassess whether previously capitalized initial direct costs for any existing leases would qualify for capitalization under ASC 842. We also elected to apply the practical expedient related to land easements, allowing us to carry forward our accounting treatment for land easements on existing agreements. We did not elect to apply the hindsight practical expedient regarding the likelihood of exercising a lessee purchase option or assessing any impairment of right-of-use assets for existing leases.

On March 5, 2019, the Financial Accounting Standards Board ("FASB") issued ASU 2019-01, "Leases (ASC 842): Codification Improvements", ("ASU 2019-01") effective for public companies for fiscal years beginning after December 15, 2019. The new ASU aligns the guidance in ASC 842 for determining fair value of the underlying asset by lessors that are not manufacturers or dealers, with that of existing guidance. As a result, the fair value of the underlying asset at lease commencement is its cost, reflecting any volume or trade discounts that may apply. However, if there has been a significant lapse of time between when the underlying asset is acquired and when the lease commences, the definition of fair value (in ASC 820, "Fair Value Measurement") should be applied. We adopted ASU 2019-01 as of January 1, 2019.

We recorded a $96 million cumulative adjustment (net of tax of $37 million) to accumulated deficit as of January 1, 2019, for the impact of the new accounting standards.

Recently Issued Accounting Pronouncements

In November 2021, the FASB issued ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance” (“ASU 2021-10”). These amendments are expected to increase transparency in financial reporting by requiring business entities to disclose information about certain types of government assistance they receive. ASU 2021-10 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-10 in the first quarter of fiscal 2022 will have a material impact to our consolidated financial statements.

In October 2021, the FASB issued ASU 2021-08, “Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers” (“ASU 2021-08”), which requires entities to apply Topic 606 to recognize and measure contract assets and contract liabilities in a business combination. ASU 2021-08 will become effective for us in the first quarter of fiscal 2023 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-08 on January 1, 2023 will have a material impact to our consolidated financial statements.

In July 2021, the FASB issued ASU 2021-05, “Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments” (“ASU 2021-05”), which amends the lease classification requirements for lessors to align them with practice under ASC Topic 840. Under this ASU, lessors should classify and account for a lease with variable lease payments that do not depend on a reference index or a rate as an operating lease if certain criteria are met; and when a lease is classified as operating, the lessor does not recognize a net investment in the lease, does not derecognize the underlying asset, and, therefore, does not recognize a selling profit or loss. ASU 2021-05 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-05 on January 1, 2022 will have a material impact to our consolidated financial statements.
In January 2021, the FASB issued ASU 2021-01, "Reference Rate Reform (Topic 848): Scope" ("ASU 2021-01"), which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. ASU 2021-01 also amends the expedients and exceptions in Topic 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. ASU 2021-01 provides option guidance for a limited time to ease the potential burden in accounting for reference rate reform. Based on our review of our key material contracts through December 31, 2021, we do not expect ASU 2021-01 will have a material impact to our consolidated financial statements.

In August 2020, the FASB issued ASU 2020-06, “Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity”, which simplifies accounting for convertible instruments by removing major separation models required under the current ASC. Consequently, more convertible debt instruments will be reported as a single liability instrument and more convertible preferred stock as a single equity instrument with no separate accounting for embedded conversion features. ASU 2020-06 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2020-06 on January 1, 2022 will have a material impact to our consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting" ("ASU 2020-04" or "Reference Rate Reform"), designed to ease the burden of accounting for contract modifications related to the global market-wide reference rate transition period. Subject to certain criteria, ASU 2020-04 provides qualifying entities the option to apply expedients and exceptions to contract modifications and hedging accounting relationships made until December 31, 2022. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. ASU 2020-04 provides optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. Based on our review of our key material contracts through December 31, 2021, we do not expect ASU 2020-04 will have a material impact to our consolidated financial statements.
v3.22.0.1
Planned Divestiture of the Latin American and ILE Businesses
12 Months Ended
Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]  
Planned Divestiture of the Latin American and ILE Businesses Planned Divestiture of the Latin American and ILEC Businesses
On July 25, 2021, affiliates of Level 3 Parent, LLC, an indirect wholly-owned subsidiary of Lumen Technologies, Inc., entered into a definitive agreement to divest Lumen’s Latin American business to an affiliate of a fund advised by Stonepeak Partners LP in exchange for $2.7 billion cash, subject to certain working capital, other purchase price adjustments and related transaction expenses (estimated to be approximately $50 million). Level 3 Parent, LLC anticipates closing the transaction mid-year 2022, upon receipt of all requisite regulatory approvals in the U.S. and certain countries where the Latin American business operates, as well as the satisfaction of other customary conditions.

On August 3, 2021, we and certain of our affiliates entered into a definitive agreement to divest our incumbent local exchange ("ILEC") business conducted within 20 Midwestern and Southern states to an affiliate of funds advised by Apollo Global Management, Inc. In exchange, we would receive $7.5 billion, subject to offsets for (i) assumed indebtedness (expected to be approximately $1.4 billion) and (ii) certain purchaser’s transaction expenses along with working capital, tax, other customary purchase price adjustments and related transaction expenses (estimated to be approximately $1.7 billion). We anticipate closing the transaction mid-year 2022 upon receipt of all regulatory approvals and the satisfaction of other customary closing conditions.

The actual amount of our net after-tax proceeds from these divestitures could vary substantially from the amounts we currently estimate, particularly if we experience delays in completing the transactions or if any of our other assumptions prove to be incorrect.
We do not believe these divestiture transactions represent a strategic shift for Lumen. Therefore, neither divested business meets the criteria to be classified as a discontinued operation. As a result, we will continue to report our operating results for the Latin American and ILEC businesses (the "disposal groups") in our consolidated operating results until the transactions are closed. The pre-tax net income of the disposal groups is estimated to be and reported as follows in the tables below:

 Years Ended December 31,
 202120202019
(Dollars in millions)
Latin American business pre-tax net income$214 160 30 
ILEC business pre-tax net income851 649 655 
Total disposal groups pre-tax net income$1,065 809 685 

As of December 31, 2021 in the accompanying consolidated balance sheet, the assets and liabilities of our Latin American and ILEC businesses are classified as held for sale and are measured at the lower of (i) the carrying value when we classified the disposal groups as held for sale and (ii) the fair value of the disposal groups, less costs to sell. Effective with the designation of both disposal groups as held for sale on July 25, 2021 and August 3, 2021, respectively, we suspended recording depreciation of property, plant and equipment and amortization of finite-lived intangible assets and right-of-use assets while these assets are classified as held for sale. We estimate that we would have recorded an additional $272 million of depreciation, intangible amortization, and amortization of right-of-use assets for the year ended December 31, 2021 if the Latin American and ILEC businesses did not meet the held for sale criteria.

As a result of our evaluation of the recoverability of the carrying value of the assets and liabilities held for sale relative to the agreed upon sales price, adjusted for costs to sell, we did not record any estimated loss on disposal during the year ended December 31, 2021. The recoverability of each disposal group will be re-evaluated each reporting period until the closing of each transaction.
The principal components of the held for sale assets and liabilities are as follows:


December 31, 2021
Latin American BusinessILEC BusinessTotal
(Dollars in millions)
Assets held for sale
Cash and cash equivalents$39 40 
Accounts receivable, less allowance of $3, $21 and $24
83 227 310 
Other current assets81 45 126 
Property, plant and equipment, net accumulated depreciation of $434, $8,303 and $8,737
1,591 3,491 5,082 
Goodwill (1)
239 2,615 2,854 
Other intangible assets, net126 158 284 
Other non-current assets75 38 113 
Total assets held for sale$2,234 6,575 8,809 
Liabilities held for sale
Accounts payable$101 64 165 
Salaries and benefits23 25 48 
Income and other taxes27 24 51 
Interest— 10 10 
Current portion of deferred revenue26 90 116 
Other current liabilities35 42 
Long-term debt, net of discounts (2)
— 1,377 1,377 
Deferred income taxes, net129 — 129 
Pension and other post-retirement benefits (3)
56 58 
Other non-current liabilities120 141 261 
Total liabilities held for sale$435 1,822 2,257 
______________________________________________________________________ 
(1)The assignment of goodwill was based on the relative fair values of the applicable reporting units prior to being reclassified as held for sale.
(2)Long-term debt, net of discounts, includes $1.4 billion of Embarq Senior notes, $117 million of related unamortized discounts and $57 million of long-term finance lease obligations.
(3)Excludes pension obligation of approximately $2.5 billion for the ILEC business as of December 31, 2021, which will be transferred to the purchaser of the ILEC business upon closing. As of December 31, 2021, approximately $2.2 billion, or 88%, of this pension obligation is expected to be funded through the transfer of Lumen pension plan assets to the purchaser. The remaining portion of the obligation is expected to be separately funded with cash paid by Lumen at the time of closing. See Note 11—Employee Benefits for additional information.
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Customer Relationships and Other Intangible Assets Goodwill, Customer Relationships and Other Intangible Assets
Goodwill, customer relationships and other intangible assets consisted of the following:
As of December 31,
20212020
 (Dollars in millions)
Goodwill$15,986 18,870 
Indefinite-lived intangible assets$278 
Other intangible assets subject to amortization: 
Customer relationships, less accumulated amortization of $11,740 and $11,060
5,365 6,344 
Capitalized software, less accumulated amortization of $3,624 and $3,279
1,459 1,520 
Trade names, patents and other, less accumulated amortization of $160 and $120
137 77 
Total other intangible assets, net$6,970 8,219 

As of December 31, 2021, the gross carrying amount of goodwill, customer relationships, indefinite-lived and other intangible assets was $38.5 billion.

When we acquired Embarq Corporation ("Embarq") in 2009, we acquired certain right-of-way assets and, because there were no legal, regulatory, contractual or other factors that would reasonably limit the useful life of these assets, we classified them as indefinite-lived and, as such, initially did not amortize these assets. Our recent digital transformation efforts and continued focus on our fiber-based infrastructure assets have prompted management to reassess and ultimately change the accounting treatment of these indefinite-lived assets to align with our focus on growth products versus our declining copper-based products. As a result, during the first quarter of 2021, we reclassified an indefinite-lived intangible asset to finite-lived intangible asset. As of January 1, 2021 we began amortizing the $268 million asset over its estimated nine-year remaining life. On August 3, 2021, upon entering into a definitive agreement to divest our ILEC business, we reclassified $169 million of the $268 million asset as held for sale. At this time, we discontinued recording amortization on the portion of the finite-lived intangible assets that had been reclassified as held for sale (see Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information). The above-described change in the estimated remaining economic life of these assets, as modified by the subsequent reclassification of a portion thereof, resulted in an increase in amortization expense of approximately $22 million for the year ending December 31, 2021. The increase in amortization expense, net of tax, reduced consolidated net income (loss) by approximately $17 million, or $0.02 per basic and diluted common share, for the year ended December 31, 2021.

Our goodwill was derived from numerous acquisitions where the purchase price exceeded the fair value of the net assets acquired.

We assess our goodwill and other indefinite-lived intangible assets for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be impairment. Our annual impairment assessment date for indefinite-lived intangible assets other than goodwill is December 31. We completed our qualitative assessment of our indefinite-lived intangible assets other than goodwill as of December 31, 2021 and 2020 and concluded it is more likely than not that our indefinite-lived intangible assets are not impaired; thus, no impairment charge for these assets was recorded in 2021 or 2020. We are required to write down the value of goodwill only when our assessment determines the carrying value of equity of any of our reporting units exceeds its fair value. Our annual impairment assessment date for goodwill is October 31, at which date we assess our reporting units.

Since our internal reorganization described in Note 17—Segment Information we have used five reporting units for goodwill impairment testing, which are (i) Mass Markets, (ii) North America ("NA") Business (iii) Europe, Middle East and Africa region ("EMEA"), (iv) Asia Pacific region ("APAC") and (v) Latin America region ("LATAM"). At October 31, 2020 and 2019, we used eight reporting units for goodwill impairment testing, which were consumer, small and medium business, enterprise, wholesale, North American global accounts ("NA GAM"), EMEA, LATAM and APAC.
Our reporting units are not discrete legal entities with discrete full financial statements. Our assets and liabilities are employed in and relate to the operations of multiple reporting units. For each reporting unit, we compare its estimated fair value of equity to its carrying value of equity that we assign to the reporting unit. If the estimated fair value of the reporting unit is greater than the carrying value, we conclude that no impairment exists. If the estimated fair value of the reporting unit is less than the carrying value, we record a non-cash impairment equal to the excess amount. Depending on the facts and circumstances, we typically estimate the fair value of our reporting units by considering either or both of (i) a discounted cash flow method, which is based on the present value of projected cash flows over a discrete projection period and a terminal value, which is based on the expected normalized cash flows of the reporting units following the discrete projection period, and (ii) a market approach, which includes the use of market multiples of publicly-traded companies whose services are comparable to ours.

At October 31, 2021, we estimated the fair value of our five above-mentioned reporting units by considering both a market approach and a discounted cash flow method. As of October 31, 2021, we determined that the estimated fair value of equity exceeded the carrying value of equity for our Mass Markets, NA Business, EMEA, LATAM and APAC reporting units by 277%, 8%, 57%, 100% and 125%, respectively. Based on our assessments performed, we concluded it was more likely than not that the fair value of each of our reporting units exceeded the carrying value of equity of those reporting units at October 31, 2021. Therefore, we concluded no impairment existed as of our assessment date.

Our reclassification of held for sale assets, as described in Note 2—Planned Divestiture of the Latin American and ILEC Businesses, was considered an event or change in circumstance which required an assessment of our goodwill for impairment as of July 31, 2021. We performed a pre-reclassification goodwill impairment test to determine whether there was an impairment prior to the reclassification of these assets and to determine the July 31, 2021 fair values to be utilized for goodwill allocation regarding the Latin American and ILEC businesses to be reclassified as assets held for sale. We concluded it was more likely than not that the fair value of each of our reporting units exceeded the carrying value of equity of those reporting units at July 31, 2021. We also performed a post-reclassification goodwill impairment test using our estimated post-divestiture cash flows and carrying value of equity to evaluate whether the fair value of our reporting units that will remain following the divestitures exceeds the carrying value of the equity of such reporting units after reclassification of assets held for sale. At July 31, 2021, we estimated the fair value of our five above-mentioned reporting units by considering both a market approach and a discounted cash flow method. As of July 31, 2021, we determined that the estimated fair value of equity exceeded the carrying value of equity for our Mass Markets, NA Business, EMEA, LATAM and APAC reporting units by 150%, 24%, 58%,100% and 134%, respectively. Based on our assessments performed, we concluded it was more likely than not that the fair value of each of our reporting units exceeded the carrying value of equity of our reporting units at July 31, 2021. Therefore, we concluded no impairment existed as of our assessment date.

Our January 2021 reorganization was considered an event or change in circumstance which required an assessment of our goodwill for impairment. We performed a qualitative impairment assessment in the first quarter of 2021 and concluded it is more likely than not that the fair value of each of our reporting units exceeded the carrying value of equity of those reporting units at January 31, 2021. Therefore, we concluded no impairment existed as of our assessment date.
At October 31, 2020, we estimated the fair value of our eight above-mentioned reporting units (prior to the January 2021 reorganization) by considering both a market approach and a discounted cash flow method. We discounted the projected cash flows for our consumer, enterprise, wholesale, small and medium business and NA GAM reporting units using a rate that represented their weighted average cost of capital, which we determined to be approximately 7.6% as of the assessment date (which comprised an after-tax cost of debt of 2.5% and a cost of equity of 10.7%). We discounted the projected cash flows of our EMEA, LATAM and APAC reporting units using a rate that represents their estimated weighted average cost of capital, which we determined to be approximately 8.0%, 14.3% and 10.1%, respectively, as of the measurement date (which was comprised of an after-tax cost of debt of 2.9%, 6.9% and 3.9% and a cost of equity of 11.2%, 18.8% and 14.0%, respectively). We utilized company comparisons and analyst reports within the telecommunications industry which have historically supported a range of fair values derived from annualized revenue and earnings before interest, taxes, depreciation and amortization ("EBITDA") multiples between 2.0x and 5.5x and 4.8x and 12.5x, respectively. We selected a revenue and EBITDA multiple for each of our reporting units, resulting in an overall company revenue and EBITDA multiple of 2.3x and 5.7x, respectively. We also reconciled the estimated fair values of the reporting units to our market capitalization as of October 31, 2020 and concluded that the indicated control premium of approximately 33% was reasonable based on recent market transactions. Due to the decline in our stock price at October 31, 2020 and our assessment performed with respect to the reporting units described above, we concluded that the estimated fair value of our consumer, wholesale, small and medium business and EMEA reporting units was less than our carrying value of equity for those reporting units. As a result, these reporting units were impaired, resulting in a non-cash, non-tax-deductible goodwill impairment charge of $2.6 billion. See the table below for the impairment charges by segment. As of October 31, 2020, the estimated fair value of equity exceeded the carrying value of equity for our enterprise, NA GAM, LATAM and APAC reporting units by 2%, 46%, 74% and 23%, respectively. Based on our assessments performed, we concluded that the goodwill assigned to our enterprise, NA GAM, LATAM and APAC reporting units was not impaired at October 31, 2020.

At October 31, 2019, we estimated the fair value of our eight above-mentioned reporting units (prior to the January 2021 reorganization) by considering both a market approach and a discounted cash flow method. As of October 31, 2019, based on our assessment performed with respect to our eight reporting units, the estimated fair value of equity exceeded the carrying value of equity for our consumer, small and medium business, enterprise, wholesale, NA GAM, EMEA, LATAM, and APAC reporting units by 44%, 41%, 53%, 46%, 55%, 5%, 63% and 38%, respectively. Based on our assessments performed, we concluded that the goodwill for our eight reporting units was not impaired as of October 31, 2019.

Both our January 2019 internal reorganization and the decline in our stock price indicated the carrying values of our reporting units were more likely than not in excess of their fair values, requiring an impairment test in the first quarter of 2019. Because our low stock price was a key trigger for impairment testing during the first quarter of 2019, we estimated the fair value of our operations in such quarter using only the market approach. Applying this approach, we utilized company comparisons and analyst reports within the telecommunications industry which have historically supported a range of fair values derived from annualized revenue and EBITDA (earnings before interest, taxes, depreciation and amortization) multiples between 2.1x and 4.9x and 4.9x and 9.8x, respectively. We selected a revenue and EBITDA multiple for each of our reporting units within this range. We reconciled the estimated fair values of the reporting units to our market capitalization as of the date of each of our impairment tests during the first quarter of 2019 and concluded that the indicated control premium of approximately 4.5% and 4.1% was reasonable based on recent market transactions. In the quarter ended March 31, 2019, based on our assessments performed with respect to the reporting units as described above, we concluded that the estimated fair value of certain of our reporting units was less than our carrying value of equity as of the date of both of our impairment tests during the first quarter. As a result, we recorded non-cash, non-tax-deductible goodwill impairment charges aggregating to $6.5 billion in the quarter ended March 31, 2019. See the table below for the impairment charges by segment.
The following table shows the rollforward of goodwill assigned to our reportable segments (including the January 2021 reorganization discussed above) from December 31, 2019 through December 31, 2021.


 International and Global AccountsEnterpriseSmall and Medium BusinessWholesaleConsumerBusinessMass MarketsTotal
 (Dollars in millions)
As of December 31, 2019(1)
$2,670 4,738 3,259 3,813 7,054 — — 21,534 
Effect of foreign currency exchange rate change and other(15)— (7)— — — — (22)
Impairment(100)— (444)(699)(1,399)— — (2,642)
As of December 31, 2020(1)
2,555 4,738 2,808 3,114 5,655 — — 18,870 
January 2021 reorganization (2,555)(4,738)(2,808)(3,114)(5,655)12,173 6,697 — 
Reclassified as held for sale(2)
— — — — — (913)(1,946)(2,859)
Effect of foreign currency exchange rate change and other— — — — — (25)— (25)
As of December 31, 2021(1)
$— — — — — 11,235 4,751 15,986 
______________________________________________________________________
(1)Goodwill at December 31, 2021, December 31, 2020 and December 31, 2019 is net of accumulated impairment losses of $7.7 billion, $12.9 billion and $10.3 billion, respectively. The change in accumulated impairment losses at December 31, 2021 is a result of amounts reclassified as held for sale related to our planned divestitures.
(2)Includes $2.9 billion of goodwill, net of accumulated impairment loss reclassified as held for sale related to our pending divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.

For additional information on our segments, see Note 17—Segment Information.

As of December 31, 2021, the weighted average remaining useful lives of our finite-lived intangible assets were approximately 7 years in total, approximately 8 years for customer relationships, 4 years for capitalized software and 1 year for trade names.

Total amortization expense for finite-lived intangible assets for the years ended December 31, 2021, 2020 and 2019 was $1.3 billion, $1.7 billion and $1.7 billion, respectively.

We estimate that total amortization expense for finite-lived intangible assets for the years ending December 31, 2022 through 2026 will be as provided in the table below. As a result of reclassifying our Latin American and ILEC businesses as being held for sale on our December 31, 2021 consolidated balance sheet, the amounts presented below do not include future amortization expense for intangible assets of the businesses to be divested. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

 (Dollars in millions)
2022$1,034 
2023940 
2024849 
2025798 
2026721 
v3.22.0.1
Revenue Recognition
12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Revenue Recognition Revenue Recognition
Product and Service Categories

Since the first quarter of 2021, we have categorized our products and services revenue among the following categories for the Business segment:

Compute and Application Services, which include our Edge Cloud services, IT solutions, Unified Communications and Collaboration ("UC&C"), data center, content delivery network ("CDN") and Managed Security services;

IP and Data Services, which include Ethernet, IP, and VPN data networks, including software-defined wide area networks ("SD WAN") based services, Dynamic Connections and Hyper WAN;

Fiber Infrastructure Services, which include dark fiber, optical services and equipment; and

Voice and Other, which include Time Division Multiplexing ("TDM") voice, private line and other legacy services.

Since the first quarter of 2021, we have categorized our products and services revenue among the following categories for the Mass Markets segment:

Consumer Broadband, which includes high speed fiber-based and lower speed DSL-based broadband services to residential customers;

Small Business Group ("SBG") Broadband, which includes high speed fiber-based and lower speed DSL-based broadband services to small businesses;

Voice and Other, which include primarily local and long-distance services, professional services and other ancillary services; and

Connect America Fund ("CAF") II, which consists of CAF Phase II payments through the end of 2021 to support voice and broadband in FCC-designated high-cost areas.

Reconciliation of Total Revenue to Revenue from Contracts with Customers

The following tables provide total revenue by segment, sales channel and product category. They also provide the amount of revenue that is not subject to ASC 606, "Revenue from Contracts with Customers" ("ASC 606"), but is instead governed by other accounting standards:
Year Ended December 31, 2021
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$715 (280)435 
IP and Data Services1,708 — 1,708 
Fiber Infrastructure886 (129)757 
Voice and Other744 — 744 
Total IGAM Revenue4,053 (409)3,644 
Large Enterprise
Compute and Application Services698 (63)635 
IP and Data Services1,554 — 1,554 
Fiber Infrastructure521 (50)471 
Voice and Other949 — 949 
Total Large Enterprise Revenue3,722 (113)3,609 
Mid-Market Enterprise
Compute and Application Services139 (31)108 
IP and Data Services1,754 (5)1,749 
Fiber Infrastructure218 (8)210 
Voice and Other618 — 618 
Total Mid-Market Enterprise Revenue2,729 (44)2,685 
Wholesale
Compute and Application Services189 (159)30 
IP and Data Services1,196 — 1,196 
Fiber Infrastructure623 (118)505 
Voice and Other1,607 (252)1,355 
Total Wholesale Revenue3,615 (529)3,086 
Business Segment by Product Category
Compute and Application Services1,741 (533)1,208 
IP and Data Services6,212 (5)6,207 
Fiber Infrastructure2,248 (305)1,943 
Voice and Other3,918 (252)3,666 
Total Business Segment Revenue14,119 (1,095)13,024 
Mass Markets Segment by Product Category
Consumer Broadband2,875 (211)2,664 
SBG Broadband156 (16)140 
Voice and Other2,047 (80)1,967 
CAF II490 (490)— 
Total Mass Markets Revenue5,568 (797)4,771 
Total Revenue$19,687 (1,892)17,795 
Timing of revenue
Goods and services transferred at a point in time$138 
Services performed over time17,657 
Total revenue from contracts with customers$17,795 
Year Ended December 31, 2020
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$772 (265)507 
IP and Data Services1,731 — 1,731 
Fiber Infrastructure822 (110)712 
Voice and Other793 — 793 
Total IGAM Revenue4,118 (375)3,743 
Large Enterprise
Compute and Application Services663 (82)581 
IP and Data Services1,588 (2)1,586 
Fiber Infrastructure590 (46)544 
Voice and Other1,074 (2)1,072 
Total Large Enterprise Revenue3,915 (132)3,783 
Mid-Market Enterprise
Compute and Application Services137 (16)121 
IP and Data Services1,845 (6)1,839 
Fiber Infrastructure218 (9)209 
Voice and Other769 — 769 
Total Mid-Market Enterprise Revenue2,969 (31)2,938 
Wholesale
Compute and Application Services183 (161)22 
IP and Data Services1,249 — 1,249 
Fiber Infrastructure618 (121)497 
Voice and Other1,765 (258)1,507 
Total Wholesale Revenue3,815 (540)3,275 
Business Segment by Product Category
Compute and Application Services1,755 (524)1,231 
IP and Data Services6,413 (8)6,405 
Fiber Infrastructure2,248 (286)1,962 
Voice and Other4,401 (260)4,141 
Total Business Segment Revenue14,817 (1,078)13,739 
Mass Markets Segment by Product Category
Consumer Broadband2,909 (221)2,688 
SBG Broadband153 (15)138 
Voice and Other2,341 (109)2,232 
CAF II492 (492)— 
Total Mass Markets Revenue5,895 (837)5,058 
Total Revenue$20,712 (1,915)18,797 
Timing of revenue
Goods and services transferred at a point in time$250 
Services performed over time18,547 
Total revenue from contracts with customers$18,797 
Year Ended December 31, 2019
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$790 (265)525 
IP and Data Services1,764 — 1,764 
Fiber Infrastructure785 (99)686 
Voice and Other833 — 833 
Total IGAM Revenue4,172 (364)3,808 
Large Enterprise
Compute and Application Services610 (89)521 
IP and Data Services1,589 — 1,589 
Fiber Infrastructure524 (44)480 
Voice and Other1,113 (1)1,112 
Total Large Enterprise Revenue3,836 (134)3,702 
Mid-Market Enterprise
Compute and Application Services147 (11)136 
IP and Data Services1,894 — 1,894 
Fiber Infrastructure219 (20)199 
Voice and Other892 (1)891 
Total Mid-Market Enterprise Revenue3,152 (32)3,120 
Wholesale
Compute and Application Services188 (168)20 
IP and Data Services1,319 — 1,319 
Fiber Infrastructure629 (122)507 
Voice and Other1,943 (279)1,664 
Total Wholesale Revenue4,079 (569)3,510 
Business Segment by Product Category
Compute and Application Services1,735 (533)1,202 
IP and Data Services6,566 — 6,566 
Fiber Infrastructure2,157 (285)1,872 
Voice and Other4,781 (281)4,500 
Total Business Segment Revenue15,239 (1,099)14,140 
Mass Markets Segment by Product Category
Consumer Broadband2,876 (215)2,661 
SBG Broadband163 (4)159 
Voice and Other2,688 (143)2,545 
CAF II492 (492)— 
Total Mass Markets Revenue6,219 (854)5,365 
Total Revenue$21,458 (1,953)19,505 
Timing of revenue
Goods and services transferred at a point in time$221 
Services performed over time19,284 
Total revenue from contracts with customers$19,505 
______________________________________________________________________
(1)Includes regulatory revenue and lease revenue not within the scope of ASC 606.

Customer Receivables and Contract Balances

The following table provides balances of customer receivables, contract assets and contract liabilities, net of amounts reclassified as held for sale, as of December 31, 2021 and December 31, 2020:
December 31, 2021December 31, 2020
 (Dollars in millions)
Customer receivables(1)(2)
$1,493 1,889 
Contract assets(3)
73 108 
Contract liabilities(4)
680 950 
______________________________________________________________________
(1)Reflects gross customer receivables of $1.6 billion and $2.1 billion, net of allowance for credit losses of $102 million and $174 million, at December 31, 2021 and December 31, 2020, respectively.
(2)As of December 31, 2021, amount excludes customer receivables, net reclassified as held for sale of $288 million.
(3)As of December 31, 2021, amount excludes contract assets reclassified as held for sale of $9 million.
(4)As of December 31, 2021, amount excludes contract liabilities reclassified as held for sale of $161 million.

Contract liabilities are consideration we have received from our customers or billed in advance of providing goods or services promised in the future. We defer recognizing this consideration as revenue until we have satisfied the related performance obligation to the customer. Contract liabilities include recurring services billed one month in advance and installation and maintenance charges that are deferred and recognized over the actual or expected contract term, which typically ranges from one to five years depending on the service. Contract liabilities are included within deferred revenue in our consolidated balance sheets. During the years ended December 31, 2021 and December 31, 2020, we recognized $605 million and $672 million, respectively, of revenue that was included in contract liabilities of $950 million and $1.0 billion as of January 1, 2021 and 2020, respectively.

Performance Obligations

As of December 31, 2021, our estimated revenue expected to be recognized in the future related to performance obligations associated with existing customer contracts that are partially or wholly unsatisfied is approximately $6.2 billion. We expect to recognize approximately 77% of this revenue through 2024, with the balance recognized thereafter.

These amounts exclude (i) the value of unsatisfied performance obligations for contracts for which we recognize revenue at the amount to which we have the right to invoice for services performed (for example, uncommitted usage or non-recurring charges associated with professional or technical services to be completed), (ii) contracts that are classified as leasing arrangements that are not subject to ASC 606 and (iii) the value of unsatisfied performance obligations for contracts which relate to our planned divestiture.
Contract Costs

The following tables provide changes in our contract acquisition costs and fulfillment costs:
December 31, 2021
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$289 216 
Costs incurred176 151 
Amortization(209)(149)
Reclassified as held for sale(1)
(34)(32)
End of period balance$222 186 

December 31, 2020
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$326 221 
Costs incurred181 141 
Amortization(218)(146)
End of period balance$289 216 
______________________________________________________________________
(1)Represents the amounts reclassified as held for sale as of December 31, 2021 related to our planned divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.

Acquisition costs include commission fees paid to employees as a result of obtaining contracts. Fulfillment costs include third party and internal costs associated with the provision, installation and activation of telecommunications services to customers, including labor and materials consumed for these activities.

Deferred acquisition and fulfillment costs are amortized based on the transfer of services on a straight-line basis over the average contract life of approximately 30 months for mass markets customers and 29 months for business customers. Amortized fulfillment costs are included in cost of services and products and amortized acquisition costs are included in selling, general and administrative expenses in our consolidated statements of operations. The amount of these deferred costs that are anticipated to be amortized in the next 12 months are included in other current assets on our consolidated balance sheets. The amount of deferred costs expected to be amortized beyond the next twelve months is included in other non-current assets on our consolidated balance sheets. Deferred acquisition and fulfillment costs are assessed for impairment on an annual basis.
v3.22.0.1
Leases
12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Leases Leases
We primarily lease to or from third parties various office facilities and colocation facilities, equipment and dark fiber. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:
Years Ended December 31,
20212020
(Dollars in millions)
Operating and short-term lease cost$535 729 
Finance lease cost:
Amortization of right-of-use assets37 36 
Interest on lease liability16 12 
Total finance lease cost53 48 
Total lease cost$588 777 

We primarily lease various equipment, office facilities, retail outlets, switching facilities and other network sites. These leases, with few exceptions, provide for renewal options and escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

During the years ended December 31, 2021 and 2020, we rationalized our lease footprint and ceased using 23 and 16 underutilized leased property locations, respectively. We determined that we no longer needed the leased space and, due to the limited remaining term on the contracts, concluded that we had neither the intent nor ability to sublease the properties. For the years ended December 31, 2021 and 2020, we incurred accelerated lease costs of approximately $35 million and $41 million, respectively. In conjunction with our plans to continue to reduce costs, we expect to continue our real estate rationalization efforts and may incur additional accelerated lease costs in future periods.

For the years ended December 31, 2021, 2020 and 2019, our gross rental expense, including the accelerated lease costs discussed above, was $588 million, $777 million and $733 million, respectively. We also received sublease rental income for the years ended December 31, 2021, 2020 and 2019 of $25 million, $25 million and $24 million, respectively.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20212020
Assets
Operating lease assetsOther, net$1,451 1,699 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation314 329 
Total leased assets$1,765 2,028 
Liabilities
Current
OperatingCurrent operating lease liabilities$385 379 
FinanceCurrent maturities of long-term debt19 26 
Noncurrent
OperatingOther1,171 1,405 
FinanceLong-term debt251 267 
Total lease liabilities$1,826 2,077 
Weighted-average remaining lease term (years)
Operating leases6.86.7
Finance leases13.112.1
Weighted-average discount rate
Operating leases5.54 %6.01 %
Finance leases4.89 %4.94 %

At December 31, 2021, we classified certain operating and finance lease assets and liabilities as held for sale and discontinued recording amortization on the related right-of-use assets on the Latin American and ILEC businesses. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20212020
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$525 566 
Operating cash flows for finance leases15 14 
Financing cash flows for finance leases52 40 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$165 375 
Right-of-use assets obtained in exchange for new finance lease liabilities94 124 
As of December 31, 2021, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2022$457 33 
2023355 28 
2024253 28 
2025198 28 
2026149 28 
Thereafter490 223 
Total lease payments1,902 368 
Less: interest(346)(98)
Total1,556 270 
Less: current portion(385)(19)
Long-term portion$1,171 251 

As of December 31, 2021, we had entered into a $15 million finance lease with a deferred commencement date.

Operating Lease Income

Lumen Technologies leases various dark fiber, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations.

For the years ended December 31, 2021, 2020 and 2019, our gross rental income was $1.2 billion, $1.3 billion and $1.4 billion, respectively, which represents 6%, 6% and 7% respectively, of our operating revenue for the years ended December 31, 2021, 2020 and 2019.
Leases Leases
We primarily lease to or from third parties various office facilities and colocation facilities, equipment and dark fiber. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:
Years Ended December 31,
20212020
(Dollars in millions)
Operating and short-term lease cost$535 729 
Finance lease cost:
Amortization of right-of-use assets37 36 
Interest on lease liability16 12 
Total finance lease cost53 48 
Total lease cost$588 777 

We primarily lease various equipment, office facilities, retail outlets, switching facilities and other network sites. These leases, with few exceptions, provide for renewal options and escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

During the years ended December 31, 2021 and 2020, we rationalized our lease footprint and ceased using 23 and 16 underutilized leased property locations, respectively. We determined that we no longer needed the leased space and, due to the limited remaining term on the contracts, concluded that we had neither the intent nor ability to sublease the properties. For the years ended December 31, 2021 and 2020, we incurred accelerated lease costs of approximately $35 million and $41 million, respectively. In conjunction with our plans to continue to reduce costs, we expect to continue our real estate rationalization efforts and may incur additional accelerated lease costs in future periods.

For the years ended December 31, 2021, 2020 and 2019, our gross rental expense, including the accelerated lease costs discussed above, was $588 million, $777 million and $733 million, respectively. We also received sublease rental income for the years ended December 31, 2021, 2020 and 2019 of $25 million, $25 million and $24 million, respectively.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20212020
Assets
Operating lease assetsOther, net$1,451 1,699 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation314 329 
Total leased assets$1,765 2,028 
Liabilities
Current
OperatingCurrent operating lease liabilities$385 379 
FinanceCurrent maturities of long-term debt19 26 
Noncurrent
OperatingOther1,171 1,405 
FinanceLong-term debt251 267 
Total lease liabilities$1,826 2,077 
Weighted-average remaining lease term (years)
Operating leases6.86.7
Finance leases13.112.1
Weighted-average discount rate
Operating leases5.54 %6.01 %
Finance leases4.89 %4.94 %

At December 31, 2021, we classified certain operating and finance lease assets and liabilities as held for sale and discontinued recording amortization on the related right-of-use assets on the Latin American and ILEC businesses. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20212020
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$525 566 
Operating cash flows for finance leases15 14 
Financing cash flows for finance leases52 40 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$165 375 
Right-of-use assets obtained in exchange for new finance lease liabilities94 124 
As of December 31, 2021, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2022$457 33 
2023355 28 
2024253 28 
2025198 28 
2026149 28 
Thereafter490 223 
Total lease payments1,902 368 
Less: interest(346)(98)
Total1,556 270 
Less: current portion(385)(19)
Long-term portion$1,171 251 

As of December 31, 2021, we had entered into a $15 million finance lease with a deferred commencement date.

Operating Lease Income

Lumen Technologies leases various dark fiber, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations.

For the years ended December 31, 2021, 2020 and 2019, our gross rental income was $1.2 billion, $1.3 billion and $1.4 billion, respectively, which represents 6%, 6% and 7% respectively, of our operating revenue for the years ended December 31, 2021, 2020 and 2019.
Leases Leases
We primarily lease to or from third parties various office facilities and colocation facilities, equipment and dark fiber. Leases with an initial term of 12 months or less are not recorded on our consolidated balance sheets; we recognize lease expense for these leases on a straight-line basis over the lease term.
We determine if an arrangement is a lease at inception and whether that lease meets the classification criteria of a finance or operating lease. Lease-related assets, or right-of-use assets, are recognized at the lease commencement date at amounts equal to the respective lease liabilities. Lease-related liabilities are recognized at the present value of the remaining contractual fixed lease payments, discounted using our incremental borrowing rates. As part of the present value calculation for the lease liabilities, we use an incremental borrowing rate as the rates implicit in the leases are not readily determinable. The incremental borrowing rates used for lease accounting are based on our unsecured rates, adjusted to approximate the rates at which we could borrow on a collateralized basis over a term similar to the recognized lease term. We apply the incremental borrowing rates to lease components using a portfolio approach based upon the length of the lease term and the reporting entity in which the lease resides. Operating lease expense is recognized on a straight-line basis over the lease term, while variable lease payments are expensed as incurred. Operating lease assets are included in other, net under goodwill and other assets on our consolidated balance sheets. Noncurrent operating lease liabilities are included in other under deferred credits and other liabilities on our consolidated balance sheets.

Some of our lease arrangements contain lease components, non-lease components (including common-area maintenance costs) and executory costs (including real estate taxes and insurance costs). We generally account for each component separately based on the estimated standalone price of each component. For colocation leases, we account for the lease and non-lease components as a single lease component.

Many of our lease agreements contain renewal options; however, we do not recognize right-of-use assets or lease liabilities for renewal periods unless we determine that we are reasonably certain of renewing the lease. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain to be exercised. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Lease expense consisted of the following:
Years Ended December 31,
20212020
(Dollars in millions)
Operating and short-term lease cost$535 729 
Finance lease cost:
Amortization of right-of-use assets37 36 
Interest on lease liability16 12 
Total finance lease cost53 48 
Total lease cost$588 777 

We primarily lease various equipment, office facilities, retail outlets, switching facilities and other network sites. These leases, with few exceptions, provide for renewal options and escalations that are either fixed or based on the consumer price index. Any rent abatements, along with rent escalations, are included in the computation of rent expense calculated on a straight-line basis over the lease term. The lease term for most leases includes the initial non-cancelable term plus any term under renewal options that we believe are reasonably assured.

During the years ended December 31, 2021 and 2020, we rationalized our lease footprint and ceased using 23 and 16 underutilized leased property locations, respectively. We determined that we no longer needed the leased space and, due to the limited remaining term on the contracts, concluded that we had neither the intent nor ability to sublease the properties. For the years ended December 31, 2021 and 2020, we incurred accelerated lease costs of approximately $35 million and $41 million, respectively. In conjunction with our plans to continue to reduce costs, we expect to continue our real estate rationalization efforts and may incur additional accelerated lease costs in future periods.

For the years ended December 31, 2021, 2020 and 2019, our gross rental expense, including the accelerated lease costs discussed above, was $588 million, $777 million and $733 million, respectively. We also received sublease rental income for the years ended December 31, 2021, 2020 and 2019 of $25 million, $25 million and $24 million, respectively.
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20212020
Assets
Operating lease assetsOther, net$1,451 1,699 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation314 329 
Total leased assets$1,765 2,028 
Liabilities
Current
OperatingCurrent operating lease liabilities$385 379 
FinanceCurrent maturities of long-term debt19 26 
Noncurrent
OperatingOther1,171 1,405 
FinanceLong-term debt251 267 
Total lease liabilities$1,826 2,077 
Weighted-average remaining lease term (years)
Operating leases6.86.7
Finance leases13.112.1
Weighted-average discount rate
Operating leases5.54 %6.01 %
Finance leases4.89 %4.94 %

At December 31, 2021, we classified certain operating and finance lease assets and liabilities as held for sale and discontinued recording amortization on the related right-of-use assets on the Latin American and ILEC businesses. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20212020
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$525 566 
Operating cash flows for finance leases15 14 
Financing cash flows for finance leases52 40 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$165 375 
Right-of-use assets obtained in exchange for new finance lease liabilities94 124 
As of December 31, 2021, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2022$457 33 
2023355 28 
2024253 28 
2025198 28 
2026149 28 
Thereafter490 223 
Total lease payments1,902 368 
Less: interest(346)(98)
Total1,556 270 
Less: current portion(385)(19)
Long-term portion$1,171 251 

As of December 31, 2021, we had entered into a $15 million finance lease with a deferred commencement date.

Operating Lease Income

Lumen Technologies leases various dark fiber, office facilities, colocation facilities, switching facilities, other network sites and service equipment to third parties under operating leases. Lease and sublease income are included in operating revenue in the consolidated statements of operations.

For the years ended December 31, 2021, 2020 and 2019, our gross rental income was $1.2 billion, $1.3 billion and $1.4 billion, respectively, which represents 6%, 6% and 7% respectively, of our operating revenue for the years ended December 31, 2021, 2020 and 2019.
v3.22.0.1
Credit Losses on Financial Instruments
12 Months Ended
Dec. 31, 2021
Credit Loss [Abstract]  
Credit Losses on Financial Instruments Credit Losses on Financial Instruments
In accordance with ASC 326, "Financial Instruments - Credit Losses", we aggregate financial assets with similar risk characteristics to align our expected credit losses with the credit quality or deterioration over the life of such assets. We periodically monitor certain risk characteristics within our aggregated financial assets and revise their composition accordingly, to the extent internal and external risk factors change. Financial assets that do not share risk characteristics with other financial assets are evaluated separately. Our financial assets measured at amortized cost primarily consist of accounts receivable.

We use a loss rate method to estimate our allowance for credit losses. Our determination of the current expected credit loss rate begins with our review of historical loss experience as a percentage of accounts receivable. We measure our historical loss period based on the average days to recognize accounts receivable as credit losses. When asset specific characteristics and current conditions change from those in the historical period, due to changes in our credit and collections strategy, certain classes of aged balances, or credit loss and recovery policies, we perform a qualitative and quantitative assessment to adjust our historical loss rate. We use regression analysis to develop an expected loss rate using historical experience and economic data over a forecast period. We measure our forecast period based on the average days to collect payment on billed accounts receivable. To determine our current allowance for credit losses, we combine the historical and expected credit loss rates and apply them to our period end accounts receivable.

If there is an unexpected deterioration of a customer's financial condition or an unexpected change in economic conditions (including changes caused by COVID-19 or other macroeconomic events), we assess the need to adjust the allowance for credit losses. Any such resulting adjustments would affect earnings in the period that adjustments are made.
The assessment of the correlation between historical observed default rates, current conditions and forecasted economic conditions requires judgment. Alternative interpretations of these factors could have resulted in different conclusions regarding the allowance for credit losses. The amount of credit loss is sensitive to changes in circumstances and forecasted economic conditions. Our historical credit loss experience, current conditions and forecast of economic conditions may also not be representative of the customers' actual default experience in the future, and we may use methodologies that differ from those used by other companies.

In conjunction with our January 2021 internal reorganization, as referenced in Note 17—Segment Information, we pooled certain assets with similar credit risk characteristics based on the nature of our customers, their industry, policies used to grant credit terms and their historical and expected credit loss patterns. Additionally, we reassessed our historical loss period for the segment portfolio reorganization.

The following tables present the activity of our allowance for credit losses by accounts receivable portfolio for the years ended December 31, 2021 and December 31, 2020:

BusinessMass MarketsTotal
(Dollars in millions)
Beginning balance at January 1, 2021(1)
$109 82 191 
Provision for expected losses50 55 105 
Write-offs charged against the allowance(76)(101)(177)
Recoveries collected13 19 
Reclassified as held for sale(2)
(8)(16)(24)
Ending balance at December 31, 2021
$88 26 114 

BusinessConsumerTotal
(Dollars in millions)
Beginning balance at January 1, 2020(3)
$58 37 95 
Provision for expected losses115 74 189 
Write-offs charged against the allowance(74)(59)(133)
Recoveries collected24 18 42 
Foreign currency exchange rate changes adjustment(2)— (2)
Balance at December 31, 2020$121 70 191 
______________________________________________________________________
(1)As described in Note 17—Segment Information, we completed an internal reorganization in January 2021. As a result of this change, allowance for credit losses previously included in the Consumer and Business portfolio of $70 million related to consumer and $12 million related to our small business group, respectively, were reclassified to the Mass Markets allowance for credit losses on January 1, 2021.
(2)Represents the amounts reclassified as held for sale related to our pending divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.
(3)The beginning balance for the year ended December 31, 2020 includes the cumulative effect of $11 million for the adoption of the new credit loss standard.

For the year ended December 31, 2021, we decreased our allowance for credit losses for our business and mass markets accounts receivable portfolios primarily due to higher write-off activity during 2021, along with the easing of prior delays due to COVID-19 related restrictions from 2020 and lower receivable balances.

For the year ended December 31, 2020, we increased our allowance for credit losses for our business and consumer accounts receivable portfolios due to an increase during the period in historical and expected loss experience in certain classes of aged balances, which were predominantly attributable to the COVID-19 induced economic slowdown. Decreased write-offs (net of recoveries) were driven by COVID-19 regulations and programs, which further contributed to the increase in our allowance for credit losses for the year ended December 31, 2020.
v3.22.0.1
Long-Term Debt and Credit Facilities
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Long-Term Debt and Credit Facilities Long-Term Debt and Credit Facilities
The following chart reflects the consolidated long-term debt of Lumen Technologies, Inc. and its subsidiaries as of the dates indicated below, including unamortized discounts and premiums and unamortized debt issuance costs, but excluding intercompany debt:
   As of December 31,
 
Interest Rates(1)
Maturities(1)
20212020
   (Dollars in millions)
Senior Secured Debt: (2)
Lumen Technologies, Inc.    
Revolving Credit Facility
LIBOR + 2.00%
2025$200 150 
Term Loan A(3)
LIBOR + 2.00%
20251,050 1,108 
Term Loan A-1(3)
LIBOR + 2.00%
2025300 316 
Term Loan B(4)
LIBOR + 2.25%
20274,900 4,950 
Senior notes
4.000%
20271,250 1,250 
Subsidiaries:
Level 3 Financing, Inc.
Tranche B 2027 Term Loan(5)
LIBOR + 1.75%
20273,111 3,111 
Senior notes
3.400% - 3.875%
2027 - 2029
1,500 1,500 
Embarq Corporation subsidiaries
First mortgage bonds
7.125% - 8.375%
2023 - 2025
138 138 
Senior Notes and Other Debt:
Lumen Technologies, Inc.
Senior notes
4.500% - 7.650%
2022 - 2042
8,414 8,645 
Subsidiaries:   
Level 3 Financing, Inc.
Senior notes
3.625% - 5.375%
2025 - 2029
5,515 5,515 
Qwest Corporation
Senior notes
6.500% - 7.750%
2025 - 2057
1,986 3,170 
Term loan(6)
LIBOR + 2.00%
2027215 215 
Qwest Capital Funding, Inc.
Senior notes
6.875% - 7.750%
2028 - 2031
255 352 
Embarq Corporation and subsidiary
Senior notes(7)
7.995%2036— 1,437 
Finance lease and other obligationsVariousVarious347 295 
Unamortized premiums (discounts), net  21 (78)
Unamortized debt issuance costs(220)(237)
Total long-term debt  28,982 31,837 
Less current maturities  (1,554)(2,427)
Long-term debt, excluding current maturities  $27,428 29,410 
_______________________________________________________________________________
(1)As of December 31, 2021.
(2)See the remainder of this Note for a description of certain parent or subsidiary guarantees and liens securing this debt.
(3)Term Loans A and A-1 had interest rates of 2.104% and 2.147% as of December 31, 2021 and December 31, 2020, respectively.
(4)Term Loan B had interest rates of 2.354% and 2.397% as of December 31, 2021 and December 31, 2020, respectively.
(5)The Level 3 Tranche B 2027 Term Loan had interest rates of 1.854% and 1.897% as of December 31, 2021 and December 31, 2020, respectively.
(6)The Qwest Corporation Term Loan had interest rates of 2.110% and 2.150% as of December 31, 2021 and December 31, 2020, respectively.
(7)As of December 31, 2021, the Embarq Senior notes have been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Long-Term Debt Maturities

Set forth below is the aggregate principal amount of our long-term debt as of December 31, 2021 (excluding unamortized premiums (discounts), net, unamortized debt issuance costs and intercompany debt) maturing during the following years. As a result of reclassifying our Latin American and ILEC businesses as being held for sale on our December 31, 2021 consolidated balance sheet, the amounts presented below do not include maturities of the debt obligations of those businesses. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.
 
(Dollars in millions)(1)
2022$1,554 
2023977 
20241,158 
20253,127 
20262,062 
2027 and thereafter20,303 
Total long-term debt$29,181 
______________________________________________________________________ 
(1)As of December 31, 2021, these amounts exclude $1.5 billion of debt and finance lease obligations that have been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Debt of Lumen Technologies, Inc. and its Subsidiaries

At December 31, 2021, most of our outstanding consolidated debt had been incurred by Lumen Technologies, Inc. or one of the following four other primary borrowers or “borrowing groups,” each of which has borrowed funds either on a standalone basis or as part of a separate restricted group with certain of its subsidiaries:

Level 3 Financing, Inc., including its parent guarantor Level 3 Parent, LLC, and one or more subsidiary guarantors;

Qwest Corporation;

Qwest Capital Funding, Inc., including its parent guarantor, Qwest Communications International Inc.; and

Embarq Corporation.

Each of these borrowers or borrowing groups has entered into one or more credit agreements with certain financial institutions or other institutional lenders, or issued senior notes. Certain of these debt instruments are described further below.
Amended and Restated Credit Agreement

On January 31, 2020, we amended and restated our credit agreement dated June 19, 2017 (as so amended and restated, the "Amended Credit Agreement"). At December 31, 2021, the Amended Credit Agreement consisted of the following facilities:

a $2.2 billion senior secured revolving credit facility (“the Revolving Credit Facility”);

a $1.05 billion senior secured Term Loan A credit facility;

a $300 million senior secured Term Loan A-1 credit facility with CoBank, ACB; and

a $4.9 billion senior secured Term Loan “B” credit facility (the term loan facilities and the Revolving Credit Facility being referred to collectively as the "Amended Secured Credit Facilities").

Loans under the Term Loan A and A-1 facilities and the Revolving Credit Facility bear interest at a rate equal to, at our option, the Eurodollar rate or the alternative base rate (each as defined in the Amended Credit Agreement) plus an applicable margin between 1.50% to 2.25% per annum for Eurodollar loans and 0.50% to 1.25% per annum for alternative base rate loans, depending on our then current total leverage ratio. Loans under the Term Loan B facility bear interest at the Eurodollar rate plus 2.25% per annum or the alternative base rate plus 1.25% per annum. Loans under each of the term loan facilities require certain specified quarterly amortization payments and certain specified mandatory prepayments in connection with certain asset sales and debt issuances and out of excess cash flow, among other things, subject in each case to certain significant exceptions.

Borrowings under the Revolving Credit Facility and the Term Loan A and A-1 facilities mature on January 31, 2025. Borrowings under the Term Loan B facility mature on March 15, 2027.

All of Lumen's obligations under the Amended Secured Credit Facilities are guaranteed by certain of its subsidiaries. The guarantees by certain of those guarantors are secured by a first priority security interest in substantially all assets (including certain subsidiaries stock) directly owned by them, subject to certain exceptions and limitations.

A portion of the Revolving Credit Facility in an amount not to exceed $250 million is available for swingline loans, and a portion in an amount not to exceed $800 million is available for the issuance of letters of credit.

Lumen Technologies is permitted under the Amended Credit Agreement to request certain incremental borrowings subject to the satisfaction of various conditions and to certain other limitations. Any incremental borrowings would be subject to the same terms and conditions under the Amended Credit Agreement.

The above described January 2020 amendments and related refinancing transactions discussed under "—Repayments" below resulted in an aggregate net loss of $67 million from modification and extinguishment of the debt.

Term Loans and Certain Other Debt of Subsidiaries

Qwest Corporation

On October 23, 2020, Qwest Corporation borrowed $215 million under a variable-rate term loan with CoBank ACB and used the resulting net proceeds to pay off its previous $100 million term loan with CoBank ACB. Additionally, on October 26, 2020, Qwest Corporation used the remaining net proceeds to partially facilitate the redemption of the remaining $160 million aggregate principal amount of its outstanding 6.625% Notes due 2055. The outstanding unpaid principal amount of this new term loan plus any accrued and unpaid interest is due on October 23, 2027. Interest is paid at least quarterly based upon either the London Interbank Offered Rate ("LIBOR") or the base rate (as defined in the credit agreement) plus an applicable margin between 1.50% to 2.50% per annum for LIBOR loans and 0.50% to 1.50% per annum for base rate loans depending on Qwest Corporation's then current senior unsecured long-term debt rating.
Level 3 Financing, Inc.

At December 31, 2021, Level 3 Financing, Inc. owed $3.111 billion under a senior secured Tranche B 2027 Term Loan, which matures on March 1, 2027. The Tranche B 2027 Term Loan carries an interest rate, in the case of base rate borrowings, equal to (i) the greater of the Prime Rate, the Federal Funds Effective Rate plus 50 basis points, or LIBOR plus 100 basis points (with all such terms and calculations as defined or further specified in the credit agreement) plus (ii) 0.75% per annum. Any Eurodollar borrowings under the Tranche B 2027 Term Loan bear interest at LIBOR plus 1.75% per annum.

The Tranche B 2027 Term Loan requires certain specified mandatory prepayments in connection with certain asset sales and other transactions, subject to certain significant exceptions. The obligations of Level 3 Financing, Inc. under the Tranche B 2027 Term Loan are, subject to certain exceptions, secured by certain assets of Level 3 Parent, LLC and certain of its material domestic telecommunication subsidiaries. Also, Level 3 Parent, LLC and certain of its subsidiaries have guaranteed the obligations of Level 3 Financing, Inc. under the Tranche B 2027 Term Loan.

Embarq Subsidiaries

At December 31, 2021 and 2020, one of our Embarq subsidiaries had outstanding first mortgage bonds. These first mortgage bonds are secured by substantially all of the property, plant and equipment of the issuing subsidiary.

Revolving Letters of Credit

We use various financial instruments in the normal course of business. These instruments include letters of credit, which are conditional commitments issued on our behalf in accordance with specified terms and conditions. Lumen Technologies maintains an uncommitted $225 million revolving letter of credit facility separate from the letter of credit facility included in the Revolving Credit Facility noted above. Letters of credit issued under this uncommitted facility are backed by credit enhancements in the form of secured guarantees issued by certain of our subsidiaries. As of December 31, 2021 and 2020, our outstanding letters of credit totaled $88 million and $97 million, respectively, and we had no letters of credit outstanding under our Revolving Credit Facility.

As of December 31, 2021, Level 3 Parent, LLC had outstanding letters of credit or other similar obligations of approximately $9 million, of which $5 million was collateralized by cash that is reflected on the consolidated balance sheet as restricted cash. As of December 31, 2020, Level 3 Parent, LLC had outstanding letters of credit or other similar obligations of approximately $18 million of which $11 million was collateralized by cash that is reflected on the consolidated balance sheet as restricted cash. None of our conditional commitments under our outstanding letters of credit are reflected as debt on our balance sheets.
Senior Notes

Lumen's consolidated indebtedness at December 31, 2021 included (i) senior secured notes issued by Lumen Technologies, Inc. and Level 3 Financing, Inc. and (ii) senior unsecured notes issued by Lumen Technologies, Inc., Level 3 Financing, Inc., Qwest Corporation, Qwest Capital Funding, Inc. and Embarq Corporation. All of these notes carry fixed interest rates and all principal is due on the notes’ respective maturity dates, which rates and maturity dates are summarized in the table above. The Lumen Technologies, Inc. secured senior notes are guaranteed by the same domestic subsidiaries that guarantee the Amended Credit Agreement. The senior notes issued by Level 3 Financing, Inc. are guaranteed by its parent, Level 3 Parent, LLC and one or more of its affiliates. The senior notes issued by Qwest Capital Funding, Inc. are guaranteed by its parent, Qwest Communications International Inc. Except for a limited number of senior notes issued by Qwest Corporation, the issuer generally can redeem the notes, at its option, in whole or in part, (i) pursuant to a fixed schedule of pre-established redemption prices, (ii) pursuant to a “make whole” redemption price or (iii) under certain other specified limited conditions. Under certain circumstances in connection with a “change of control” of Lumen Technologies, it will be required to make an offer to repurchase each series of these senior notes (other than two of its older series of notes) at a price of 101% of the principal amount redeemed, plus accrued and unpaid interest. Also, under certain circumstances in connection with a "change of control" of Level 3 Parent, LLC or Level 3 Financing, Inc., Level 3 Financing will be required to make an offer to repurchase each series of its outstanding senior notes at a price of 101% of the principal amount redeemed, plus accrued and unpaid interest.

Repayments

2021

During 2021, Lumen Technologies and its affiliates redeemed approximately $1.1 billion of their respective debt obligations, which primarily included a $900 million redemption of Level 3 Financing, Inc. senior notes and a $235 million redemption of Qwest Corporation senior notes. These transactions resulted in a net gain of $8 million.

Additionally, during 2021, Lumen Technologies (i) repaid at maturity approximately $2.8 billion of its consolidated debt obligations, which primarily included a $1.2 billion repayment at maturity of Lumen senior unsecured notes, a $97 million repayment at maturity of Qwest Capital Funding, Inc. senior notes and a $950 million repayment at maturity of Qwest Corporation senior notes, (ii) made $125 million of scheduled amortization payments under our term loans and (iii) made payments on its Revolving Credit Facility.

2020

During 2020, Lumen Technologies and its affiliates redeemed approximately $6.2 billion of their respective debt obligations, which primarily included $1.3 billion of Lumen Technologies credit agreement debt, $2.8 billion of Qwest Corporation senior notes, $78 million of Lumen Technologies senior notes and $2.0 billion of Level 3 Financing, Inc. senior notes. These transactions resulted in a net loss of $109 million, including the $67 million loss resulting from the modification of the Amended Credit Agreement discussed above.

Additionally, during 2020, Lumen Technologies (i) repaid at maturity $973 million aggregate principal amount of its outstanding senior notes and (ii) made $125 million of scheduled amortization payments under our term loans.

New Issuances

2021

On June 15, 2021, Lumen Technologies, Inc. issued $1.0 billion aggregate principal amount of 5.375% Senior Notes due 2029 (the "2029 Notes"). The net proceeds were used, together with cash on hand, to repay at maturity our outstanding $1.2 billion 6.450% Senior Notes, Series S, due 2021.

On January 13, 2021, Level 3 Financing, Inc. issued $900 million aggregate principal amount of 3.750% Sustainability-Linked Senior Notes due 2029 (the "Sustainability-Linked Notes"). The net proceeds were used, together with cash on hand, to redeem $900 million of our outstanding senior note indebtedness. The Sustainability-Linked Notes are guaranteed by Level 3 Parent, LLC and Level 3 Communications, LLC.
2020

On November 27, 2020, Lumen Technologies, Inc. issued $1.0 billion of 4.500% Senior Notes due 2029. The proceeds from this offering were used to redeem outstanding senior notes of Qwest Corporation and reduce borrowings under the Revolving Credit Facility.

On August 12, 2020, Level 3 Financing, Inc., issued $840 million aggregate principal amount of its 3.625% Senior Notes due 2029 (the "2029 Notes"). Level 3 Financing, Inc. used the net proceeds from this offering to redeem certain of its outstanding senior note indebtedness. The 2029 Notes are guaranteed by Level 3 Parent, LLC and Level 3 Communications, LLC.

On June 15, 2020, Level 3 Financing, Inc., issued $1.2 billion aggregate principal amount of its 4.250% Senior Notes due 2028 (the "2028 Notes"). Level 3 Financing, Inc. used the net proceeds from this offering to redeem certain of its outstanding senior note indebtedness. The 2028 Notes are guaranteed by Level 3 Parent, LLC and Level 3 Communications, LLC.

On January 24, 2020, Lumen Technologies, Inc. issued $1.25 billion aggregate principal amount of its 4.000% Senior Secured Notes due 2027 (the “2027 Notes”). Lumen Technologies, Inc. used the net proceeds from this offering to repay a portion of the outstanding indebtedness under its Term Loan B facility. The 2027 Notes are guaranteed by each of Lumen’s domestic subsidiaries that guarantees Lumen's Amended Credit Agreement, subject to various exceptions and limitations. While the 2027 Notes are not secured by any of the assets of Lumen Technologies, Inc., certain of the note guarantees are secured by a first priority security interest in substantially all of the assets of such guarantors (including the stock of certain of their respective subsidiaries), which assets also secure obligations under the Amended Credit Agreement on a pari passu basis.

Interest Expense

Interest expense includes interest on total long-term debt. The following table presents the amount of gross interest expense, net of capitalized interest:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Interest expense:   
Gross interest expense$1,575 1,743 2,093 
Capitalized interest(53)(75)(72)
Total interest expense$1,522 1,668 2,021 

Covenants

Lumen Technologies, Inc.

With respect to the Term Loan A and A-1 facilities and the Revolving Credit Facility, the Amended Credit Agreement requires us to maintain (i) a maximum total leverage ratio of not more than 4.75 to 1.00 and (ii) a minimum consolidated interest coverage ratio of at least 2.00 to 1.00, with such ratios being determined and calculated in the manner described in the Amended Credit Agreement.

The Amended Secured Credit Facilities contain various representations and warranties and extensive affirmative and negative covenants. Such covenants include, among other things and subject to certain significant exceptions, restrictions on our ability to declare or pay dividends, repurchase stock, repay certain other indebtedness, create liens, incur additional indebtedness, make investments, engage in transactions with our affiliates, dispose of assets and merge or consolidate with any other person.
The senior unsecured notes of Lumen Technologies, Inc. were issued under four separate indentures. These indentures restrict our ability to (i) incur, issue or create liens upon the property of Lumen Technologies, Inc. and (ii) consolidate with or merge into, or transfer or lease all or substantially all of our assets to any other party. These indentures do not contain any provisions that restrict the issuance of new securities in the event of a material adverse change to us. The senior secured notes of Lumen Technologies, Inc. were issued under a separate indenture that contains a more restrictive set of covenants. As indicated above under "Senior Notes", Lumen Technologies, Inc. will be required to offer to purchase certain of its long-term debt securities issued under its indentures under certain circumstances in connection with a "change of control" of Lumen Technologies, Inc.

Level 3 Companies

The term loan, senior secured notes and senior unsecured notes of Level 3 Financing, Inc. contain various representations and extensive affirmative and negative covenants. Such covenants include, among other things and subject to certain significant exceptions, restrictions on their ability to declare or pay dividends, repay certain other indebtedness, create liens, incur additional indebtedness, make investments, engage in transactions with their affiliates, dispose of assets and merge or consolidate with any other person. Also, as indicated above under "Senior Notes", Level 3 Financing, Inc. will be required to offer to repurchase or repay certain of its long-term debt under certain circumstances in connection with a "change of control" of Level 3 Financing or Level 3 Parent, LLC.

Qwest Companies

Under its term loan, Qwest Corporation must maintain a debt to EBITDA (earnings before interest, taxes, depreciation and amortization) ratio of not more than 2.85 to 1.00, as determined and calculated in the manner described in the applicable term loan documentation. The term loan also contains a negative pledge covenant, which generally requires Qwest Corporation to secure equally and ratably any advances under the term loan if it pledges assets or permits liens on its property for the benefit of other debtholders.

The senior notes of Qwest Corporation were issued under indentures dated April 15, 1990 and October 15, 1999. These indentures contain restrictions on the incurrence of liens and the consummation of certain transactions substantially similar to the above-described covenants in Lumen's indentures (but contain no mandatory repurchase provisions). The senior notes of Qwest Capital Funding, Inc. were issued under an indenture dated June 29, 1998 containing terms substantially similar to those set forth in Qwest Corporation's indentures.

Embarq

Embarq's senior notes (which, as indicated above, were classified as held for sale at December 31, 2021) were issued pursuant to an indenture dated as of May 17, 2006. While Embarq is generally prohibited from creating liens on its property unless its senior notes are secured equally and ratably, Embarq can create liens on its property without equally and ratably securing its senior notes so long as the sum of all indebtedness so secured does not exceed 15% of Embarq's consolidated net tangible assets. The indenture also contains restrictions on the consummation of certain transactions substantially similar to Lumen’s above-described covenants (but without mandatory repurchase provision), as well as certain customary covenants to maintain properties and pay all taxes and lawful claims.

Impact of Covenants

The debt covenants applicable to Lumen Technologies, Inc. and its subsidiaries could have a material adverse impact on their ability to operate or expand their respective businesses, to pursue strategic transactions, or to otherwise pursue their plans and strategies. The covenants of the Level 3 companies may significantly restrict the ability of Lumen Technologies, Inc. to receive cash from the Level 3 companies, to distribute cash from the Level 3 companies to other of Lumen’s affiliated entities, or to enter into other transactions among Lumen’s wholly-owned entities.

Certain of the debt instruments of Lumen Technologies, Inc. and its subsidiaries contain cross payment default or cross acceleration provisions. When present, these provisions could have a wider impact on liquidity than might otherwise arise from a default or acceleration of a single debt instrument.
The ability of Lumen Technologies, Inc. and its subsidiaries to comply with the financial covenants in their respective debt instruments could be adversely impacted by a wide variety of events, including unforeseen contingencies, many of which are beyond their control.

Compliance

As of December 31, 2021, Lumen Technologies, Inc. believes it and its subsidiaries were in compliance with the provisions and financial covenants in their respective material debt agreements in all material respects.

Guarantees

Lumen Technologies does not guarantee the debt of any unaffiliated parties, but, as noted above, as of December 31, 2021 certain of its largest subsidiaries guaranteed (i) its debt outstanding under its Amended Secured Credit Facilities, its senior secured notes and its $225 million letter of credit facility and (ii) the outstanding term loans or senior notes issued by certain other subsidiaries. As further noted above, several of the subsidiaries guaranteeing these obligations have pledged substantially all of their assets to secure their respective guarantees.
v3.22.0.1
Accounts Receivable
12 Months Ended
Dec. 31, 2021
Receivables [Abstract]  
Accounts Receivable Accounts Receivable
The following table presents details of our accounts receivable balances:
 As of December 31,
 20212020
 (Dollars in millions)
Trade and purchased receivables$1,281 1,717 
Earned and unbilled receivables315 345 
Other62 91 
Total accounts receivable1,658 2,153 
Less: allowance for credit losses(114)(191)
Accounts receivable, less allowance$1,544 1,962 

We are exposed to concentrations of credit risk from our customers. We generally do not require collateral to secure our receivable balances. We have agreements with other communications service providers whereby we agree to bill and collect on their behalf for services rendered by those providers to our customers within our local service area. We purchase accounts receivable from other communications service providers primarily on a recourse basis and include these amounts in our accounts receivable balance. We have not experienced any significant loss associated with these purchased receivables.

The following table presents details of our allowance for credit losses accounts:
Beginning
Balance
AdditionsDeductionsEnding
Balance
 (Dollars in millions)
2021$191 105 (182)114 
2020(1)
106 189 (104)191 
2019142 145 (181)106 
_______________________________________________________________________________
(1)On January 1, 2020, we adopted ASU 2016-13 "Measurement of Credit Losses on Financial Instruments" and recognized a cumulative adjustment to our accumulated deficit as of the date of adoption of $9 million, net of $2 million tax effect. This adjustment is included within "Deductions." See Note 6—Credit Losses on Financial Instruments for more information.
v3.22.0.1
Property, Plant and Equipment
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Property, Plant and Equipment
Net property, plant and equipment is composed of the following:
 Depreciable
Lives
As of December 31,
 20212020
  (Dollars in millions)
LandN/A$751 848 
Fiber, conduit and other outside plant(1)
15-45 years
15,366 26,522 
Central office and other network electronics(2)
3-10 years
15,394 20,692 
Support assets(3)
3-30 years
7,181 8,261 
Construction in progress(4)
N/A1,474 1,611 
Gross property, plant and equipment 40,166 57,934 
Accumulated depreciation (19,271)(31,596)
Net property, plant and equipment $20,895 26,338 
_______________________________________________________________________________
(1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles and other supporting structures. Fiber, conduit and other outside plant decreased as of December 31, 2021 compared to December 31, 2020 due to the retirement of a portion of our copper-based infrastructure being replaced with our Quantum Fiber infrastructure.
(2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics and electronics providing service to customers.
(3)Support assets consist of buildings, cable landing stations, data centers, computers and other administrative and support equipment.
(4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.

At December 31, 2021, we classified $5.1 billion of certain property, plant and equipment, net as held for sale and discontinued recording depreciation on these disposal groups. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

We recorded depreciation expense of $2.7 billion, $3.0 billion and $3.1 billion for the years ended December 31, 2021, 2020 and 2019, respectively.

Asset Retirement Obligations

As of December 31, 2021 and 2020, our asset retirement obligations balance was primarily related to estimated future costs of removing equipment from leased properties and estimated future costs of properly disposing of asbestos and other hazardous materials upon remodeling or demolishing buildings. Asset retirement obligations are included in other long-term liabilities on our consolidated balance sheets.

Our fair value estimates were determined using the discounted cash flow method.
The following table provides asset retirement obligation activity:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Balance at beginning of year$199 197 190 
Accretion expense10 10 11 
Liabilities settled(13)(8)(14)
Change in estimate(2)— 10 
Reclassified as held for sale(1)
(12)— — 
Balance at end of year$182 199 197 
_______________________________________________________________________________
(1)Represents the amounts reclassified as held for sale related to our planned divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.

The 2019 and 2021 changes in estimates referred to in the table above were offset against gross property, plant and equipment.
v3.22.0.1
Severance
12 Months Ended
Dec. 31, 2021
Restructuring and Related Activities [Abstract]  
Severance Severance
Periodically, we reduce our workforce and accrue liabilities for the related severance costs. These workforce reductions result primarily from the progression or completion of our post-acquisition integration plans, increased competitive pressures, cost reduction initiatives, process improvements through automation and reduced workload demands due to reduced demand for certain services.

We report severance liabilities within accrued expenses and other liabilities - salaries and benefits in our consolidated balance sheets and report severance expenses in selling, general and administrative expenses in our consolidated statements of operations. As described in Note 17—Segment Information, we do not allocate these severance expenses to our segments.

Changes in our accrued liabilities for severance expenses were as follows:
Severance
 (Dollars in millions)
Balance at December 31, 2019$89 
Accrued to expense151 
Payments, net(137)
Balance at December 31, 2020103 
Accrued to expense
Payments, net(70)
Balance at December 31, 2021$36 
v3.22.0.1
Employee Benefits
12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Employee Benefits Employee Benefits
Pension, Post-Retirement and Other Post-Employment Benefits

We sponsor various defined benefit pension plans (qualified and non-qualified) which, in the aggregate, cover a substantial portion of our employees including legacy CenturyLink, legacy Level 3, legacy Qwest Communications International Inc. ("Qwest") and legacy Embarq employees. Pension benefits for participants of the Lumen Combined Pension Plan ("Combined Pension Plan") who are represented by a collective bargaining agreement are based on negotiated schedules. All other participants' pension benefits are based on each individual participant's years of service and compensation. We also maintain non-qualified pension plans for certain current and former highly compensated employees. We maintain post-retirement benefit plans that provide health care and life insurance benefits for certain eligible retirees. We also provide other post-employment benefits for certain eligible former employees. We use a December 31 measurement date for all our plans.

Pension Benefits

United States funding laws require a company with a pension shortfall to fund the annual cost of benefits earned in addition to a seven-year amortization of the shortfall. Our funding policy for our Combined Pension Plan is to make contributions with the objective of accumulating ample assets to pay all qualified pension benefits when due under the terms of the plan. The accounting unfunded status of the Combined Pension Plan was $1.1 billion and $1.7 billion as of December 31, 2021 and 2020, respectively.

We made no voluntary cash contributions to the Combined Pension Plan in 2021 and 2020, respectively, and paid $5 million of benefits directly to participants of our non-qualified pension plans in 2021 and 2020, respectively.

Benefits paid by the Combined Pension Plan are paid through a trust that holds all of the Plan's assets. The amount of required contributions to the Combined Pension Plan in 2022 and beyond will depend on a variety of factors, most of which are beyond our control, including earnings on plan investments, prevailing interest rates, demographic experience, changes in plan benefits and changes in funding laws and regulations. Based on current laws and circumstances, we do not believe we are required to make any contributions to the Combined Pension Plan in 2022. We do not expect to make voluntary contributions to the trust for the Combined Pension Plan in 2022. We estimate that in 2022 we will pay $4 million of benefits directly to participants of our non-qualified pension plans.

We recognize in our consolidated balance sheets the funded status of the legacy Level 3 defined benefit post-retirement plans. The net unfunded status of these plans was $17 million and $33 million, as of December 31, 2021 and 2020, respectively. Additionally, as previously mentioned, we sponsor unfunded non-qualified pension plans for certain current and former highly-compensated employees. The net unfunded status of our non-qualified pension plans was $46 million and $51 million for the years ended December 31, 2021 and 2020, respectively. Due to the insignificant impact of these pension plans on our consolidated financial statements, we have predominantly excluded them from the remaining employee benefit disclosures in this Note, unless specifically stated.

Post-Retirement Benefits

Our post-retirement benefit plans provide post-retirement benefits to qualified retirees and allow (i) eligible employees retiring before certain dates to receive benefits at no or reduced cost and (ii) eligible employees retiring after certain dates to receive benefits on a shared cost basis. The post-retirement benefits not paid by the trusts are funded by us and we expect to continue funding these post-retirement obligations as benefits are paid. The accounting unfunded status of our qualified post-retirement benefit plan was $2.8 billion and $3.0 billion as of December 31, 2021 and 2020, respectively.

Assets in the post-retirement trusts were substantially depleted as of December 31, 2016; as of December 31, 2019 the Company ceased to pay certain post-retirement benefits through the trusts. No contributions were made to the post-retirement trusts in 2021 nor 2020. Starting in 2020, benefits were paid directly by us with available cash. In 2021, we paid $203 million of post-retirement benefits, net of participant contributions and direct subsidies. In 2022, we currently expect to pay directly $217 million of post-retirement benefits, net of participant contributions and direct subsidies.
We expect our expected health care cost trend to range from 5.00% to 5.75% in 2022 and grading to 4.50% by 2025. Our post-retirement benefit cost, for certain eligible legacy Qwest retirees and certain eligible legacy CenturyLink retirees, is capped at a set dollar amount. Therefore, those health care benefit obligations are not subject to increasing health care trends after the effective date of the caps.

Expected Cash Flows

The Combined Pension Plan payments, post-retirement health care benefit payments and premiums, and life insurance premium payments are either distributed from plan assets or paid by us. The estimated benefit payments provided below are based on actuarial assumptions using the demographics of the employee and retiree populations and have been reduced by estimated participant contributions.
Combined Pension PlanPost-Retirement
Benefit Plans
Medicare Part D
Subsidy Receipts
 (Dollars in millions)
Estimated future benefit payments:   
2022$850 220 (3)
2023729 216 (3)
2024706 211 (3)
2025686 206 (3)
2026664 200 (3)
2027 - 20312,978 899 (10)

Net Periodic Benefit Expense (Income)

We utilize a full yield curve approach in connection with estimating the service and interest components of net periodic benefit expense by applying the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flow.

The actuarial assumptions used to compute the net periodic benefit expense for our Combined Pension Plan and post-retirement benefit plans are based upon information available as of the beginning of the year, as presented in the following table.
 Combined Pension PlanPost-Retirement Benefit Plans
 202120202019202120202019
Actuarial assumptions at beginning of year:      
Discount rate
1.70% - 2.88%
2.79% - 3.55%
3.94% - 4.44%
1.58% - 2.60%
1.69% - 3.35%
3.84% - 4.38%
Rate of compensation increase3.25 %3.25 %3.25 %N/AN/AN/A
Expected long-term rate of return on plan assets(1)
5.50 %6.50 %6.50 %4.00 %4.00 %4.00 %
Initial health care cost trend rateN/AN/AN/A
6.25% / 5.00%
6.50% / 5.00%
6.50% / 5.00%
Ultimate health care cost trend rateN/AN/AN/A4.50 %4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/AN/A202520252025
_______________________________________________________________________________
N/A - Not applicable
(1)Rates are presented net of projected fees and administrative costs.
Net periodic benefit expense (income) for our Combined Pension Plan includes the following components:
 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Service cost$56 59 56 
Interest cost201 324 436 
Expected return on plan assets(535)(593)(618)
Settlement charges383 — — 
Special termination benefits charge13 
Recognition of prior service credit(9)(9)(8)
Recognition of actuarial loss184 202 223 
Net periodic pension expense (income)$286 (4)95 

Net periodic benefit expense for our post-retirement benefit plans includes the following components:
 Post-Retirement Plans
Years Ended December 31,
 202120202019
 (Dollars in millions)
Service cost$14 14 15 
Interest cost47 69 110 
Expected return on plan assets— (1)(1)
Recognition of prior service cost15 16 16 
Recognition of actuarial loss— — 
Curtailment loss— — 
Net periodic post-retirement benefit expense$80 106 140 

Service costs for our Combined Pension Plan and post-retirement benefit plans are included in the cost of services and products and selling, general and administrative line items on our consolidated statements of operations and all other costs listed above are included in other expense, net on our consolidated statements of operations for the years ended December 31, 2021, 2020 and 2019. Additionally, a portion of the service cost is also allocated to certain assets under construction, which are capitalized and reflected as part of property, plant and equipment in our consolidated balance sheets. As a result of ongoing efforts to reduce our workforce, we recognized one-time charges in 2021 of $6 million, in 2020 of $21 million and in 2019 of $6 million for curtailment and special termination benefit enhancements paid to certain eligible employees upon voluntary retirement.

Our pension plan contains provisions that allow us, from time to time, to offer lump sum payment options to certain former employees in settlement of their future retirement benefits. We record an accounting settlement charge, consisting of the recognition of certain deferred costs of the pension plan associated with these lump sum payments only if, in the aggregate, they exceed or are probable to exceed the sum of the annual service and interest costs for the plan’s net periodic pension benefit cost, which represents the settlement accounting threshold. The lump sum pension settlement payments for 2021 exceeded the settlement threshold. In addition, during the fourth quarter of 2021, we executed an annuity purchase contract with a third party insurer that triggered additional settlement activity (see “Pension Annuitization” section below for further information). As a result, we recognized a non-cash settlement charge of $383 million as of December 31, 2021 to accelerate the recognition of a portion of the previously unrecognized actuarial losses in the qualified pension plan, which is reflected in other expense, net in our consolidated statement of operations for the year ended December 31, 2021. This non-cash charge reduced our recorded net income and increased our recorded accumulated deficit, with an offset to accumulated other comprehensive loss in shareholders' equity for the year ended December 31, 2021. The amount of any future non-cash settlement charges after 2021 will be dependent on several factors, including the total amount of our future lump sum benefit payments.
Benefit Obligations

The actuarial assumptions used to compute the funded status for the plans are based upon information available as of December 31, 2021 and 2020 and are as follows:
 Combined Pension PlanPost-Retirement Benefit Plans
 December 31,December 31,
 2021202020212020
Actuarial assumptions at end of year:    
Discount rate2.85 %2.43 %2.84 %2.40 %
Rate of compensation increase3.25 %3.25 %N/AN/A
Initial health care cost trend rateN/AN/A
5.75% / 5.00%
6.25% / 5.00%
Ultimate health care cost trend rateN/AN/A4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/A20252025
_______________________________________________________________________________
N/A - Not applicable

In 2021, 2020 and 2019, we adopted the revised mortality tables and projection scales released by the Society of Actuaries, which increased the projected benefit obligation of our benefit plans by $37 million for 2021 and decreased the projected benefit obligation of our benefit plans by $3 million and $4 million for 2020 and 2019, respectively. The change in the projected benefit obligation of our benefit plans was recognized as part of the net actuarial loss and is included in accumulated other comprehensive loss, a portion of which is subject to amortization over the remaining estimated life of plan participants, which was approximately 8 years as of December 31, 2021.

The short-term and long-term interest crediting rates during 2021 for cash balance components of the Combined Pension Plan were 1.5% and 3.5%, respectively.

The following tables summarize the change in the benefit obligations for the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$12,202 12,217 11,594 
Service cost56 59 56 
Interest cost201 324 436 
Plan amendments(13)(3)(9)
Special termination benefits charge13 
Actuarial (gain) loss(337)749 1,249 
Benefits paid from plan assets(766)(1,157)(1,115)
Settlement payments and annuity purchase(1,671)— — 
Benefit obligation at end of year$9,678 12,202 12,217 
 Post-Retirement Benefit Plans
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$3,048 3,037 2,977 
Service cost14 14 15 
Interest cost47 69 110 
Participant contributions41 46 52 
Direct subsidy receipts
Actuarial (gain) loss(125)134 180 
Curtailment loss— — 
Benefits paid by company(247)(255)(300)
Benefits paid from plan assets— (7)(4)
Benefit obligation at end of year$2,781 3,048 3,037 

Pension Annuitization

On October 19, 2021, we, as sponsor of the Combined Pension Plan, along with the Plan’s independent fiduciary, entered into an agreement committing the Plan to use a portion of its plan assets to purchase an annuity from an insurance company (the "Insurer") to transfer approximately $1.4 billion of the Plan’s pension liabilities. This agreement irrevocably transferred to the Insurer future Plan benefit obligations for approximately 22,600 U.S. Lumen participants (“Transferred Participants”) effective on December 31, 2021. This annuity transaction was funded entirely by existing Plan assets.

The Insurer assumed responsibility for administrative and customer service support, including distribution of payments to the Transferred Participants. Transferred Participants’ benefits were not reduced as a result of this transaction.

Plan Assets

We maintain plan assets for our Combined Pension Plan and certain post-retirement benefit plans. As previously noted, assets in the post-retirement benefit plan trusts were substantially depleted as of December 31, 2016. Fair value of post-retirement benefit plan assets of December 31, 2021, 2020 and 2019 was $5 million, $5 million and $13 million, respectively. Due to the insignificance of these assets on our consolidated financial statements, we have predominantly excluded them from the disclosures of plan assets in this Note, unless otherwise indicated.

The following table summarizes the change in the fair value of plan assets for the Combined Pension Plan:

 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in plan assets   
Fair value of plan assets at beginning of year$10,546 10,493 10,033 
Return on plan assets422 1,210 1,575 
Benefits paid from plan assets(766)(1,157)(1,115)
Settlement payments and annuity purchase(1,671)— — 
Fair value of plan assets at end of year$8,531 10,546 10,493 
The expected rate of return on plan assets is the long-term rate of return we expect to earn on the plan's assets, net of administrative expenses paid from plan assets. It is determined annually based on the strategic asset allocation and the long-term risk and return forecast for each asset class.

Our investment objective for the Combined Pension Plan assets is to achieve an attractive risk-adjusted return over time that will provide for the payment of benefits and minimize the risk of large losses. We employ a liability-aware investment strategy designed to reduce the volatility of pension assets relative to pension liabilities. This strategy is evaluated frequently and is expected to evolve over time with changes in the funded status and other factors. Approximately 55% of plan assets is targeted to long-duration investment grade bonds and interest rate sensitive derivatives and 45% is targeted to diversified equity, fixed income and private market investments that are expected to outperform the liability with moderate funded status risk. At the beginning of 2022, our expected annual long-term rate of return on pension assets before consideration of administrative expenses is assumed to be 6.0%. Administrative expenses, including projected PBGC (Pension Benefit Guaranty Corporation) premiums reduce the annual long-term expected return net of administrative expenses to 5.5%.

Permitted investments: Plan assets are managed consistent with the restrictions set forth by the Employee Retirement Income Security Act of 1974, as amended.

Fair Value Measurements: Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs used following the fair value hierarchy set forth by the FASB. For additional information on the fair value hierarchy, see Note 14—Fair Value of Financial Instruments.

At December 31, 2021, we used the following valuation techniques to measure fair value for assets. There were no changes to these methodologies during 2021:

Level 1—Assets were valued using the closing price reported in the active market in which the individual security was traded. U.S. Treasury securities are valued at the bid price reported in an active market in which the security is traded. Variation margin due from/(to) brokers is valued at the expected next day cash settlement amount.

Level 2—Assets were valued using quoted prices in markets that are not active, broker dealer quotations, and other methods by which all significant inputs were observable at the measurement date. Fixed income securities primarily utilize observable market information and are based on a spread to U.S. Treasury securities and consider yields available on comparable securities of issuers with similar credit ratings, the new issue market for similar securities, secondary trading markets and dealer quotes. Option adjusted spread models are utilized to evaluate fixed income securities that have early redemption features. Derivative securities traded over the counter are valued based on gains or losses due to fluctuations in indices, interest rates, foreign currency exchange rates, security prices or other underlying factors. Repurchase agreements are valued based on expected settlement per the contract terms.

Level 3—Assets were valued using unobservable inputs in which little or no market data exists as reported by the respective institutions at the measurement date. Valuation methods may consider a range of factors, including estimates based on the assumptions of the investment entity or actuarial assumptions of insurers for valuing Group Annuity Contracts.
The plan's assets are invested in various asset categories utilizing multiple strategies and investment managers. Interests in commingled funds are fair valued using a practical expedient to the net asset value ("NAV") per unit (or its equivalent) of each fund. The NAV reported by the fund manager is based on the market value of the underlying investments owned by each fund, minus its liabilities, divided by the number of shares outstanding. Commingled funds can be redeemed at NAV, with a frequency that includes, daily, monthly, quarterly, semi-annually and annually. These commingled funds include redemption notice periods between same day and 180 days. Investments in private funds, primarily limited partnerships, represent long-term commitments with a fixed maturity date and are also valued at NAV. The plan has unfunded commitments related to certain private fund investments, which in aggregate are not material to the plan. Valuation inputs for these private fund interests are generally based on assumptions and other information not observable in the market. Underlying investments held in funds are aggregated and are classified based on the fund mandate. Investments held in separate accounts are individually classified.

The table below present the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2021. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivables, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets at December 31, 2021
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$862 3,744 — 4,606 
High yield bonds (b)— 172 178 
Emerging market bonds (c)64 169 — 233 
U.S. stocks (d)330 338 
Non-U.S. stocks (e)256 — — 256 
Multi-asset strategies (l)41 — — 41 
Derivatives (m)— — 
Cash equivalents and short-term investments (o)379 — 381 
Total investments, excluding investments valued at NAV$1,555 4,468 11 6,034 
Liabilities
Repurchase agreements (n)$— (193)— (193)
Investments valued at NAV2,690 
Total pension plan assets   $8,531 
The table below present the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2020. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivable, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets at December 31, 2020
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$726 4,066 — 4,792 
High yield bonds (b)— 262 268 
Emerging market bonds (c)218 172 — 390 
U.S. stocks (d)653 — 655 
Non-U.S. stocks (e)593 — 594 
Multi-asset strategies (l)199 — — 199 
Cash equivalents and short-term investments (o)— 281 — 281 
Total investments, excluding investments valued at NAV$2,389 4,782 7,179 
Liabilities
Derivatives (m)$— (1)— (1)
Investments valued at NAV3,368 
Total pension plan assets   $10,546 

The table below presents the fair value of plan assets valued at NAV by category for our Combined Pension Plan at December 31, 2021 and 2020.
 Fair Value of Plan Assets Valued at NAV
 Combined Pension Plan at
December 31,
20212020
 (Dollars in millions)
Investment grade bonds (a)$127 352 
High yield bonds (b)70 25 
U.S. stocks (d)71 192 
Non-U.S. stocks (e)398 308 
Emerging market stocks (f)11 81 
Private equity (g)348 283 
Private debt (h)495 505 
Market neutral hedge funds (i)141 222 
Directional hedge funds (j)241 254 
Real estate (k)420 543 
Multi-asset strategies (l)38 375 
Cash equivalents and short-term investments (o)330 228 
Total investments valued at NAV$2,690 3,368 
Below is an overview of the asset categories and the underlying strategies used in the preceding tables:

(a) Investment grade bonds represent investments in fixed income securities as well as commingled bond funds comprised of U.S. Treasury securities, agencies, corporate bonds, mortgage-backed securities, asset-backed securities and commercial mortgage-backed securities.

(b) High yield bonds represent investments in below investment grade fixed income securities as well as commingled high yield bond funds.

(c) Emerging market bonds represent investments in securities issued by governments and other entities located in emerging countries as well as registered mutual funds and commingled emerging market bond funds.

(d) U.S. stocks represent investments in stocks of U.S. based companies as well as commingled U.S. stock funds.

(e) Non-U.S. stocks represent investments in stocks of companies based in developed countries outside the U.S. as well as commingled funds.

(f) Emerging market stocks represent investments in commingled funds comprised of stocks of companies located in emerging markets.

(g) Private equity represents non-public investments in domestic and foreign buy out and venture capital funds. Private equity funds are primarily structured as limited partnerships and are valued according to the valuation policy of each partnership, subject to prevailing accounting and other regulatory guidelines.

(h) Private debt represents non-public investments in distressed or mezzanine debt funds and pension group insurance contracts.

(i) Market neutral hedge funds hold investments in a diversified mix of instruments that are intended in combination to exhibit low correlations to market fluctuations. These investments are typically combined with futures to achieve uncorrelated excess returns over various markets.

(j) Directional hedge funds—This asset category represents investments that may exhibit somewhat higher correlations to market fluctuations than the market neutral hedge funds. Investments in hedge funds include both direct investments and investments in diversified funds of funds.

(k) Real estate represents investments in commingled funds and limited partnerships that invest in a diversified portfolio of real estate properties.

(l) Multi-asset strategies represent broadly diversified strategies that have the flexibility to tactically adjust exposures to different asset classes through time.

(m) Derivatives include exchange traded futures contracts as well as privately negotiated over the counter contracts. The market values represent gains or losses that occur due to differences between stated contract terms and fluctuations in underlying market instruments.

(n) Repurchase Agreements includes contracts where the security owner sells a security with the agreement to buy it back at a future date and price.

(o) Cash equivalents and short-term investments represent investments that are used in conjunction with derivatives positions or are used to provide liquidity for the payment of benefits or other purposes.

Derivative instruments: Derivative instruments are used to reduce risk as well as provide return. The gross notional exposure of the derivative instruments directly held by the Combined Pension Plan is shown below. The notional amount of the derivatives corresponds to market exposure but does not represent an actual cash investment.
 Gross Notional Exposure
 Combined Pension Plan
Years Ended December 31,
 20212020
 (Dollars in millions)
Derivative instruments:  
Exchange-traded U.S. equity futures$108 84 
Exchange-traded Treasury and other interest rate futures1,688 1,033 
Exchange-traded Foreign currency futures11 12 
Exchange-traded EURO futures
Interest rate swaps127 124 
Credit default swaps132 43 
Index swaps1,036 1,297 
Foreign exchange forwards93 769 
Options654 222 

Concentrations of Risk: Investments, in general, are exposed to various risks, such as significant world events, interest rate, credit, foreign currency and overall market volatility risk. These risks are managed by broadly diversifying assets across numerous asset classes and strategies with differing expected returns, volatilities and correlations. Risk is also broadly diversified across numerous market sectors and individual companies. Financial instruments that potentially subject the plans to concentrations of counterparty risk consist principally of investment contracts with high quality financial institutions. These investment contracts are typically collateralized obligations and/or are actively managed, limiting the amount of counterparty exposure to any one financial institution. Although the investments are well diversified, the value of plan assets could change materially depending upon the overall market volatility, which could affect the funded status of the plan.

The table below presents a rollforward of the Combined Pension Plan assets valued using Level 3 inputs:
 Combined Pension Plan Assets Valued Using Level 3 Inputs
 High
Yield
Bonds
U.S. StocksPrivate DebtTotal
 (Dollars in millions)
Balance at December 31, 2019$16 22 
Acquisitions (dispositions)— (17)(16)
Actual return on plan assets— 
Balance at December 31, 2020— 
Actual return on plan assets— — 
Balance at December 31, 2021$— 11 

Certain gains and losses are allocated between assets sold during the year and assets still held at year-end based on transactions and changes in valuations that occurred during the year. These allocations also impact our calculation of net acquisitions and dispositions.

For the year ended December 31, 2021, the investment program produced actual gains on Combined Pension Plan assets of $422 million as compared to expected returns of $535 million, for a difference of $113 million. For the year ended December 31, 2020, the investment program produced actual gains on Combined Pension Plan assets of $1.2 billion as compared to the expected returns of $593 million, for a difference of $618 million. The short-term annual returns on plan assets will almost always be different from the expected long-term returns and the plans could experience net gains or losses, due primarily to the volatility occurring in the financial markets during any given year.
Unfunded Status

The following table presents the unfunded status of the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension PlanPost-Retirement
Benefit Plans
 Years Ended December 31,Years Ended December 31,
 2021202020212020
 (Dollars in millions)
Benefit obligation$(9,678)(12,202)(2,781)(3,048)
Fair value of plan assets8,531 10,546 
Unfunded status(1,147)(1,656)(2,776)(3,043)
Current portion of unfunded status— — (212)(228)
Non-current portion of unfunded status$(1,147)(1,656)(2,564)(2,815)

The current portion of our post-retirement benefit obligations is recorded on our consolidated balance sheets in accrued expenses and other current liabilities-salaries and benefits.
Accumulated Other Comprehensive Loss-Recognition and Deferrals

The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2020, items recognized as a component of net periodic benefits expense in 2021, additional items deferred during 2021 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2021. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2020Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2021
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(2,993)186 243 429 (2,564)
Settlement charge— 383 — 383 383 
Prior service benefit (cost)41 (9)13 45 
Deferred income tax benefit (expense)755 (137)(59)(196)559 
Total pension plans(2,197)423 197 620 (1,577)
Post-retirement benefit plans:     
Net actuarial (loss) gain(346)125 129 (217)
Prior service (cost) benefit(20)15 — 15 (5)
Curtailment loss— — — 
Deferred income tax benefit (expense)90 (5)(31)(36)54 
Total post-retirement benefit plans(272)14 94 108 (164)
Total accumulated other comprehensive (loss) income$(2,469)437 291 728 (1,741)
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2019, items recognized as a component of net periodic benefits expense in 2020, additional items deferred during 2020 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2019. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2019Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2020
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(3,046)203 (150)53 (2,993)
Prior service benefit (cost)47 (9)(6)41 
Deferred income tax benefit (expense)770 (47)32 (15)755 
Total pension plans(2,229)147 (115)32 (2,197)
Post-retirement benefit plans:     
Net actuarial (loss) gain(175)— (171)(171)(346)
Prior service (cost) benefit(71)16 35 51 (20)
Curtailment loss— — 
Deferred income tax benefit (expense)62 (5)33 28 90 
Total post-retirement benefit plans(184)15 (103)(88)(272)
Total accumulated other comprehensive (loss) income$(2,413)162 (218)(56)(2,469)

Medicare Prescription Drug, Improvement and Modernization Act of 2003

We sponsor post-retirement health care plans with several benefit options that provide prescription drug benefits that we deem actuarially equivalent to or exceeding Medicare Part D. We recognize the impact of the federal subsidy received under the Medicare Prescription Drug, Improvement and Modernization Act of 2003 in the calculation of our post-retirement benefit obligation and net periodic post-retirement benefit expense.

Other Benefit Plans

Health Care and Life Insurance

We provide health care and life insurance benefits to essentially all of our active employees. We are largely self-funded for the cost of the health care plan. Our health care benefit expense for current employees was $309 million, $307 million and $381 million for the years ended December 31, 2021, 2020 and 2019, respectively. Union-represented employee benefits are based on negotiated collective bargaining agreements. Employees contributed $120 million, $133 million, $148 million for the years ended December 31, 2021, 2020 and 2019, respectively. Our group basic life insurance plans are fully insured and the premiums are paid by us.
401(k) Plans

We sponsor a qualified defined contribution plan covering substantially all of our U.S. employees. Under this plan, employees may contribute a percentage of their annual compensation up to certain maximums, as defined by the plan and by the Internal Revenue Service. Currently, we match a percentage of employee contributions in cash. At December 31, 2021 and 2020, the assets of the plan included approximately 10 million and 11 million shares of our common stock, respectively, all of which were the result of the combination of previous employer match and participant directed contributions. We recognized expenses related to this plan of $96 million, $101 million and $113 million for the years ended December 31, 2021, 2020 and 2019, respectively.

Deferred Compensation Plans

We sponsored non-qualified deferred compensation plans for various groups that included certain of our current and former highly compensated employees. The value of liabilities related to these plans was not significant.

Subsequent Event

As of January 1, 2022, a new pension plan (the "Lumen Pension Plan") was spun off from the Lumen Combined Pension Plan in anticipation of the sale of the ILEC business, as described further in Note 2—Planned Divestiture of the Latin American and ILEC Businesses. The Lumen Pension Plan covers approximately 2,500 active plan participants along with 19,000 other participants, resulting in a pension benefit obligation of $2.5 billion and assets of $2.2 billion allocated to the Lumen Pension Plan. In addition, the December 31, 2021 actuarial (loss) gain and prior service cost included in accumulated other comprehensive loss was allocated to the Lumen Pension Plan or the Lumen Combined Pension Plan. The amounts allocated to the Lumen Pension Plan are subject to adjustment up to the closing of the sale of the ILEC business. We will recognize pension costs related to both plans during 2022 until the sale of the ILEC business, at which time balances related to the Lumen Pension Plan will be included in the calculation of our gain on the sale of the business.
v3.22.0.1
Stock-based Compensation
12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Stock-based Compensation Stock-based Compensation
We maintain an equity incentive program that allows our Board of Directors (through its Compensation Committee or a senior officer acting under delegated authority) to grant incentives to certain employees and outside directors in one or more forms, including: incentive and non-qualified stock options, stock appreciation rights, restricted stock awards, restricted stock units and market and performance shares. Stock options generally expire ten years from the date of grant. There was an insignificant amount of outstanding stock options as of December 31, 2020 and none as of December 31, 2021.

Restricted Stock Awards and Restricted Stock Unit Awards

For equity based restricted stock and restricted stock unit awards that contain only service conditions for vesting (time-based awards), we calculate the award fair value based on the closing price of Lumen Technologies common stock on the accounting grant date. We also grant equity-based awards that contain service conditions as well as additional market or performance conditions. For awards having both service and market conditions, the award fair value is calculated using Monte-Carlo simulations. Awards with service as well as market or performance conditions specify a target number of shares for the award, although each recipient ultimately has the opportunity to receive between 0% and 200% of the target number of shares. For awards with service and market conditions, the percentage received is based on our total shareholder return over the three-year service period versus that of selected peer companies. For awards with service and performance conditions, the percentage received depends upon the attainment of one or more financial performance targets during the two- or three-year service period.
The following table summarizes activity involving restricted stock and restricted stock unit awards for the year ended December 31, 2021:
Number of
Shares
Weighted-
Average
Grant Date
Fair Value
 (in thousands) 
Non-vested at December 31, 2020
21,508 $12.37 
Granted13,908 13.95 
Vested(11,161)13.56 
Forfeited(1,828)12.58 
Non-vested at December 31, 2021
22,427 12.74 

During 2021, we granted 13.9 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $13.95. During 2020, we granted 17.8 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $12.08. During 2019, we granted 9.8 million shares of restricted stock and restricted stock unit awards at a weighted-average price of $12.41. The total fair value of restricted stock that vested during 2021, 2020 and 2019, was $139 million, $126 million and $118 million, respectively. We do not estimate forfeitures, but recognize them as they occur.

Compensation Expense and Tax Benefit

We recognize compensation expense related to our market and performance stock-based awards with graded vesting that only have a service condition on a straight-line basis over the requisite service period for the entire award. Total compensation expense for all stock-based payment arrangements for the years ended December 31, 2021, 2020 and 2019, was $120 million, $175 million and $162 million, respectively. Our tax benefit recognized in the consolidated statements of operations for our stock-based payment arrangements for the years ended December 31, 2021, 2020 and 2019, was $29 million, $43 million and $39 million, respectively. At December 31, 2021, there was $147 million of total unrecognized compensation expense related to our stock-based payment arrangements, which we expect to recognize over a weighted-average period of 1.5 years.
v3.22.0.1
Earnings (Loss) Per Common Share
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Earnings (Loss) Per Common Share Earnings (Loss) Per Common Share
Basic and diluted earnings (loss) per common share for the years ended December 31, 2021, 2020 and 2019 were calculated as follows:

 Years Ended December 31,
 202120202019
 (Dollars in millions, except per share amounts, shares in thousands)
Income (Loss) (Numerator)   
Net Income (Loss)$2,033 (1,232)(5,269)
Net income (loss) applicable to common stock for computing basic earnings (loss) per common share2,033 (1,232)(5,269)
Net income (loss) as adjusted for purposes of computing diluted earnings (loss) per common share$2,033 (1,232)(5,269)
Shares (Denominator):  
Weighted average number of shares:   
Outstanding during period1,077,393 1,096,284 1,088,730 
Non-vested restricted stock(17,852)(17,154)(17,289)
Weighted average shares outstanding for computing basic earnings (loss) per common share1,059,541 1,079,130 1,071,441 
Incremental common shares attributable to dilutive securities:   
Shares issuable under convertible securities10 — — 
Shares issuable under incentive compensation plans7,227 — — 
Number of shares as adjusted for purposes of computing diluted earnings (loss) per common share1,066,778 1,079,130 1,071,441 
Basic earnings (loss) per common share$1.92 (1.14)(4.92)
Diluted earnings (loss) per common share(1)
$1.91 (1.14)(4.92)
______________________________________________________________________________
(1)For the years ended December 31, 2020 and December 31, 2019, we excluded from the calculation of diluted loss per share 5.3 million shares and 3.0 million shares, respectively, potentially issuable under incentive compensation plans or convertible securities, as their effect, if included, would have been anti-dilutive.

Our calculation of diluted earnings (loss) per common share excludes shares of common stock that are issuable upon exercise of stock options when the exercise price is greater than the average market price of our common stock. We also exclude unvested restricted stock awards that are antidilutive as a result of unrecognized compensation cost. Such shares were 3.2 million, 3.2 million and 6.8 million for 2021, 2020 and 2019, respectively.
v3.22.0.1
Fair Value of Financial Instruments
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments Fair Value of Financial Instruments
Our financial instruments consist of cash, cash equivalents, restricted cash, accounts receivable, accounts payable, long-term debt, excluding finance lease and other obligations, interest rate swap contracts and certain investments. Due primarily to their short-term nature, the carrying amounts of our cash, cash equivalents, restricted cash, accounts receivable and accounts payable approximate their fair values.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs used following the fair value hierarchy set forth by the FASB.

We determined the fair values of our long-term debt, including the current portion, based on quoted market prices where available or, if not available, based on inputs other than quoted market prices in active markets that are either directly or indirectly observable such as discounted future cash flows using current market interest rates.
The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:
Input LevelDescription of Input
Level 1Observable inputs such as quoted market prices in active markets.
Level 2Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3Unobservable inputs in which little or no market data exists.

The following table presents the carrying amounts and estimated fair values of our financial liabilities as of December 31, 2021:
  As of December 31, 2021As of December 31, 2020
 Input
Level
Carrying
Amount
Fair ValueCarrying
Amount
Fair Value
  (Dollars in millions)
Long-term debt, excluding finance lease and other obligations(1)
2$28,635 29,221 31,542 33,217 
Interest rate swap contracts (see Note 15)
225 25 107 107 
______________________________________________________________________
(1)As of December 31, 2021, these amounts exclude $1.4 billion of carrying amount and $1.6 billion of fair value of debt that has been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Investment Held at Net Asset Value

We hold an investment in a limited partnership that functions as holding company for a portion of the colocation and data center business that we divested in 2017. The limited partnership solely holds investments in those entities and has sole discretion as to the amount and timing of distributions of the underlying assets. Our investment did not have a readily determinable fair value as of December 31, 2020. As such, our investment in the limited partnership was previously accounted for under the cost method of accounting. As of December 31, 2021, the underlying investments held by the limited partnership began trading in active markets and as such, we elected to account for our investment in the limited partnership using net asset value ("NAV") as a practical expedient. As of December 31, 2021 the limited partnership is subject to a lock-up agreement that restricts the sale of certain underlying assets. The restriction is set to terminate in 2022.

As of December 31, 2021As of December 31, 2020
NAVCost
(Dollars in millions)
Investment in limited partnership(1)
$299 161 
______________________________________________________________________
(1)For the year ended December 31, 2021, we recognized $138 million of gain on investment, reflected in other expense, net in our consolidated statement of operations for the year ended December 31, 2021.
v3.22.0.1
Derivative Financial Instruments
12 Months Ended
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Financial Instruments Derivative Financial Instruments
 
From time to time, we use derivative financial instruments, primarily interest rate swaps, to manage our exposure to fluctuations in interest rates. Our primary objective in managing interest rate risk is to decrease the volatility of our earnings and cash flows affected by changes in the underlying rates. We have floating rate long-term debt (see Note 7—Long-Term Debt and Credit Facilities). These obligations expose us to variability in interest payments due to changes in interest rates. If interest rates increase, our interest expense increases. Conversely, if interest rates decrease, our interest expense also decreases. We have designated our currently outstanding interest rate swap agreements as cash flow hedges. As described further below, under these hedges, we receive variable-rate amounts from a counterparty in exchange for us making fixed-rate payments over the lives of the agreements without exchange of the underlying notional amount. The change in the fair value of the interest rate swap agreements is reflected in accumulated other comprehensive income ("AOCI") and, as described below, is subsequently reclassified into earnings in the period that the hedged transaction affects earnings by virtue of qualifying as effective cash flow hedges. We do not use derivative financial instruments for speculative purposes.
 
In February 2019, we entered into five variable-to-fixed interest rate swap agreements to hedge the interest payments on $2.5 billion notional amount of floating rate debt. The five interest rate swap agreements are with different counterparties; one for $700 million and the other four for $450 million each. The transactions were effective beginning March 31, 2019 and mature March 31, 2022. Under the terms of these interest rate swap transactions, we receive interest payments based on one month floating LIBOR terms and pay interest at the fixed rate of 2.48%.

In June 2019, we entered into six variable-to-fixed interest rate swap agreements to hedge the interest payments on $1.5 billion notional amount of floating rate debt. The six interest rate swap agreements are with different counterparties for $250 million each. The transactions were effective beginning June 30, 2019 and mature June 30, 2022. Under the terms of these interest rate swap transactions, we receive interest payments based on one month floating LIBOR terms and pay interest at the fixed rate of 1.58%.

As of December 31, 2021, 2020 and 2019, we evaluated the effectiveness of our hedges quantitatively and determined that hedges in effect on such dates qualified as effective hedge relationships.

We may be exposed to credit-related losses in the event of non-performance by counterparties. The counterparties to any of the financial derivatives we enter into are major institutions with investment grade credit ratings. We evaluate counterparty credit risk before entering into any hedge transaction and continue to closely monitor the financial market and the risk that our counterparties will default on their obligations as part of our quarterly qualitative effectiveness evaluation.
 
Amounts accumulated in AOCI related to derivatives are indirectly recognized in earnings as periodic settlement payments are made throughout the term of the swaps.
The table below presents the fair value of our derivative financial instruments as well as their classification on the consolidated balance sheets at December 31, 2021 and December 31, 2020 as follows (in millions):
December 31, 2021December 31, 2020
Derivatives designated asBalance Sheet LocationFair Value
Cash flow hedging contractsOther current and noncurrent liabilities$25 107 

The amount of unrealized losses recognized in AOCI consists of the following (in millions):
Derivatives designated as hedging instruments202120202019
Cash flow hedging contracts
Years Ended December 31,$115 53 

The amount of realized losses reclassified from AOCI to the statement of operations consists of the following (in millions):
Derivatives designated as hedging instruments202120202019
Cash flow hedging contracts
Years Ended December 31,$83 62 

Amounts currently included in AOCI will be reclassified into earnings prior to the ongoing settlements of these cash flow hedging contracts on March 31, 2022 or June 30, 2022. We estimate that $25 million of net losses on the interest rate swaps (based on the estimated LIBOR curve as of December 31, 2021) will be reflected in our consolidated statements of operations within the next 12 months.
v3.22.0.1
Income Taxes
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The components of the income tax expense are as follows:

 Years Ended December 31,
 202120202019
 (Dollars in millions)
Income tax expense:   
Federal   
Current$
Deferred514 338 376 
State   
Current42 50 15 
Deferred72 55 81 
Foreign   
Current23 29 35 
Deferred12 (27)(11)
Total income tax expense$668 450 503 
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Income tax expense was allocated as follows:   
Income tax expense in the consolidated statements of operations:   
Attributable to income$668 450 503 
Stockholders' equity:   
Tax effect of the change in accumulated other comprehensive loss$222 17 (62)

The following is a reconciliation from the statutory federal income tax rate to our effective income tax rate:
 Years Ended December 31,
 202120202019
 (Percentage of pre-tax income (loss))
Statutory federal income tax rate21.0 %21.0 %21.0 %
State income taxes, net of federal income tax benefit3.3 %(10.8)%(1.6)%
Goodwill impairment— %(71.0)%(28.6)%
Change in liability for unrecognized tax position0.1 %(0.6)%(0.2)%
Legislative changes to GILTI— %1.8 %— %
Nondeductible executive stock compensation0.2 %(1.6)%(0.1)%
Change in valuation allowance— %2.6 %— %
Net foreign income taxes0.6 %(0.6)%(0.5)%
Research and development credits(0.5)%1.6 %0.1 %
Other, net— %0.1 %(0.7)%
Effective income tax rate24.7 %(57.5)%(10.6)%

The effective tax rate for the year ended December 31, 2020 includes a $555 million unfavorable impact of non-deductible goodwill impairments, a $14 million favorable impact in tax regulations passed in 2020 allowing a high tax exception related to our tax exposure of Global Intangible Low-Taxed Income ("GILTI"), as well as a $20 million benefit related to the release of previously established valuation allowances against capital losses. The effective tax rate for the year ended December 31, 2019 reflects a $1.4 billion unfavorable impact of non-deductible goodwill impairments.
The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows:
 As of December 31,
 20212020
 (Dollars in millions)
Deferred tax assets  
Post-retirement and pension benefit costs$978 1,164 
Net operating loss carryforwards2,463 3,138 
Other employee benefits96 119 
Other554 604 
Gross deferred tax assets4,091 5,025 
Less valuation allowance(1,566)(1,538)
Net deferred tax assets2,525 3,487 
Deferred tax liabilities  
Property, plant and equipment, primarily due to depreciation differences(3,941)(3,882)
Goodwill and other intangible assets(2,473)(2,755)
Gross deferred tax liabilities(6,414)(6,637)
Net deferred tax liability$(3,889)(3,150)

Of the $3.9 billion and $3.2 billion net deferred tax liability at December 31, 2021 and 2020, respectively, $4.0 billion and $3.3 billion is reflected as a long-term liability and $160 million and $191 million is reflected as a net noncurrent deferred tax asset, in other, net on our consolidated balance sheets at December 31, 2021 and 2020, respectively.

At December 31, 2021, we had federal NOLs of $2.9 billion, net of limitations of Section 382 of the Internal Revenue Code ("Section 382") and uncertain tax positions, for U.S. federal income tax purposes. If unused, the NOLs will expire between 2026 and 2037. The U.S. federal net operating loss carryforwards expire as follows:

ExpiringAmount
December 31,(Dollars in millions)
2026$741 
2027375 
2028637 
2029645 
2030668 
2031733 
2032348 
2033238 
20372,976 
NOLs per return7,361 
Uncertain tax positions(4,457)
Financial NOLs$2,904 

We expect to use substantially all of these tax attributes to reduce our future federal tax liabilities, although the timing of that use will depend upon our future earnings and future tax circumstances.
At December 31, 2021 we had state net operating loss carryforwards of $16 billion (net of uncertain tax positions). We also had foreign NOL carryforwards of $6 billion. Our acquisitions of Level 3, Qwest and SAVVIS, Inc. caused "ownership changes" within the meaning of Section 382 for the acquired companies. As a result, our ability to use these NOLs and tax credits are subject to annual limits imposed by Section 382.

We establish valuation allowances when necessary to reduce the deferred tax assets to amounts we expect to realize. As of December 31, 2021, a valuation allowance of $1.6 billion was established as it is more likely than not that this amount of net operating loss, capital loss and tax credit carryforwards will not be utilized prior to expiration. Our valuation allowance at December 31, 2021 and 2020 is primarily related to foreign and state NOL carryforwards. This valuation allowance increased by $28 million during 2021, primarily due to the impact of adjustments related to the planned divestiture of our Latin American business.

A reconciliation of the change in our gross unrecognized tax benefits (excluding both interest and any related federal benefit) from January 1 to December 31 for 2021 and 2020 is as follows:
20212020
 (Dollars in millions)
Unrecognized tax benefits at beginning of year$1,474 1,538 
Increase in tax positions of the current year netted against deferred tax assets18 
Increase in tax positions of prior periods netted against deferred tax assets— 
Decrease in tax positions of the current year netted against deferred tax assets(101)(86)
Decrease in tax positions of prior periods netted against deferred tax assets(1)(5)
Increase in tax positions taken in the current year
Increase in tax positions taken in the prior year
Decrease due to payments/settlements(3)(1)
Decrease from the lapse of statute of limitations(1)— 
Unrecognized tax benefits at end of year$1,375 1,474 

The total amount (including both interest and any related federal benefit) of unrecognized tax benefits that, if recognized, would impact the effective income tax rate was $273 million and $267 million at December 31, 2021 and 2020, respectively.

Our policy is to reflect interest expense associated with unrecognized tax benefits in income tax expense. We had accrued interest (presented before related tax benefits) of approximately $24 million and $23 million at December 31, 2021 and 2020, respectively.

We, or at least one of our subsidiaries, file income tax returns in the U.S. federal jurisdiction and various states and foreign jurisdictions. With few exceptions, we are no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2002. The Internal Revenue Service and state and local taxing authorities reserve the right to audit any period where net operating loss carryforwards are available.

Based on our current assessment of various factors, including (i) the potential outcomes of these ongoing examinations, (ii) the expiration of statute of limitations for specific jurisdictions, (iii) the negotiated settlement of certain disputed issues, and (iv) the administrative practices of applicable taxing jurisdictions, it is reasonably possible that the related unrecognized tax benefits for uncertain tax positions previously taken may decrease by up to $3 million within the next 12 months. The actual amount of such decrease, if any, will depend on several future developments and events, many of which are outside our control.
v3.22.0.1
Segment Information
12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Segment Information Segment Information
In early 2021, Jeff Storey, our chief executive officer, who serves as chief operating decision maker ("CODM"), made changes to our segment and customer-facing sales channel reporting categories to align with operational changes designed to better support our customers. Since these changes, we have reported two segments: Business and Mass Markets. The Business segment includes four sales channels: International and Global Accounts, Large Enterprise, Mid-Market Enterprise and Wholesale. These changes also include both the creation of new product categories and the realignment of products and services within previously reported product categories to better reflect product life cycles and our go-to-market approach. For Business segment revenue, we report the following product categories: Compute and Application Services, IP and Data Services, Fiber Infrastructure Services and Voice and Other, in each case through the sales channels outlined above. For Mass Markets segment revenue, we report the following product categories: Consumer Broadband, SBG Broadband, Voice and Other and CAF II. See detailed descriptions of these product and service categories in Note 4—Revenue Recognition.

As described in more detail below, our segments are managed based on the direct costs of providing services to their customers and directly associated selling, general and administrative costs (primarily salaries and commissions). Shared costs are managed separately and included in "Operations and Other" in the tables below. As referenced above, we reclassified certain prior period amounts to conform to the current period presentation. See Note 1—Background and Summary of Significant Accounting Policies for additional detail on these changes.

At December 31, 2021, we had the following two reportable segments:
Business Segment: Under our Business segment, we provide our products and services under four distinct sales channels to meet the needs of our enterprise and commercial customers; and
Mass Markets Segment: Under our Mass Markets segment, we provide products and services to consumer and small business customers.
The following tables summarize our segment results for 2021, 2020 and 2019 based on the segment categorization we were operating under at December 31, 2021.
Year Ended December 31, 2021
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$14,119 5,568 19,687 — 19,687 
Expenses:
Cost of services and products3,484 152 3,636 4,852 8,488 
Selling, general and administrative1,189 530 1,719 1,176 2,895 
Less: stock-based compensation— — — (120)(120)
Total expense4,673 682 5,355 5,908 11,263 
Total adjusted EBITDA$9,446 4,886 14,332 (5,908)8,424 

Year Ended December 31, 2020
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$14,817 5,895 20,712 — 20,712 
Expenses:
Cost of services and products3,649 203 3,852 5,082 8,934 
Selling, general and administrative1,269 574 1,843 1,621 3,464 
Less: stock-based compensation— — — (175)(175)
Total expense4,918 777 5,695 6,528 12,223 
Total adjusted EBITDA$9,899 5,118 15,017 (6,528)8,489 
Year Ended December 31, 2019
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$15,239 6,219 21,458 — 21,458 
Expenses:
Cost of services and products3,598 214 3,812 5,322 9,134 
Selling, general and administrative1,364 630 1,994 1,721 3,715 
Less: stock-based compensation— — — (162)(162)
Total expense4,962 844 5,806 6,881 12,687 
Total adjusted EBITDA$10,277 5,375 15,652 (6,881)8,771 

Revenue and Expenses

Our segment revenue includes all revenue from our two segments as described in more detail above. Our segment revenue is based upon each customer's classification. We report our segment revenue based upon all services provided to that segment's customers. Our segment expenses include specific cost of service expenses incurred as a direct result of providing services and products to segment customers, along with selling, general and administrative expenses that are directly associated with specific segment customers or activities. We have not allocated assets or debt to specific segments.

The following items are excluded from our segment results, because they are centrally managed and not monitored by or reported to our CODM by segment:

network expenses not incurred as a direct result of providing services and products to segment customers;

centrally managed expenses such as Finance, Human Resources, Legal, Marketing, Product Management and IT, which are reported as "Other operating expenses" in the table below;

depreciation and amortization expense;

goodwill or other impairments;

interest expense;

stock-based compensation; and

other income and expense items are not monitored as a part of our segment operations.
The following table reconciles total segment adjusted EBITDA to net income (loss) for the years ended December 31, 2021, 2020 and 2019:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Total segment adjusted EBITDA$14,332 15,017 15,652 
Depreciation and amortization(4,019)(4,710)(4,829)
Goodwill impairment— (2,642)(6,506)
Operations and other expenses(5,908)(6,528)(6,881)
Stock-based compensation(120)(175)(162)
Operating income (loss)4,285 962 (2,726)
Total other expense, net(1,584)(1,744)(2,040)
Income (loss) before income taxes2,701 (782)(4,766)
Income tax expense668 450 503 
Net income (loss)$2,033 (1,232)(5,269)
    
We do not have any single customer that comprises more than 10% of our consolidated total operating revenue.

The assets we hold outside of the U.S. represent less than 10% of our total assets. Revenue from sources outside of the U.S. comprises less than 10% of our total operating revenue.
v3.22.0.1
Commitments, Contingencies and Other Items
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Commitments, Contingencies and Other Items Commitments, Contingencies and Other Items
We are subject to various claims, legal proceedings and other contingent liabilities, including the matters described below, which individually or in the aggregate could materially affect our financial condition, future results of operations or cash flows. As a matter of course, we are prepared to both litigate these matters to judgment as needed, as well as to evaluate and consider reasonable settlement opportunities.

Irrespective of its merits, litigation may be both lengthy and disruptive to our operations and could cause significant expenditure and diversion of management attention. We review our litigation accrual liabilities on a quarterly basis, but in accordance with applicable accounting guidelines only establish accrual liabilities when losses are deemed probable and reasonably estimable and only revise previously-established accrual liabilities when warranted by changes in circumstances, in each case based on then-available information. As such, as of any given date we could have exposure to losses under proceedings as to which no liability has been accrued or as to which the accrued liability is inadequate. Amounts accrued for our litigation and non-income tax contingencies at December 31, 2021 and December 31, 2020 aggregated to approximately $103 million and $141 million, respectively, and are included in other current liabilities, other liabilities, or liabilities held for sale in our consolidated balance sheets as of such dates. The establishment of an accrual does not mean that actual funds have been set aside to satisfy a given contingency. Thus, the resolution of a particular contingency for the amount accrued could have no effect on our results of operations but nonetheless could have an adverse effect on our cash flows.

In this Note, when we refer to a class action as "putative" it is because a class has been alleged, but not certified in that matter.
Principal Proceedings

Shareholder Class Action Suit

Lumen and certain Lumen Board of Directors members and officers were named as defendants in a putative shareholder class action lawsuit filed on June 12, 2018 in the Boulder County District Court of the state of Colorado, captioned Houser et al. v. CenturyLink, et al. The complaint asserts claims on behalf of a putative class of former Level 3 shareholders who became CenturyLink, Inc. shareholders as a result of our acquisition of Level 3. It alleges that the proxy statement provided to the Level 3 shareholders failed to disclose various material information of several kinds, including information about strategic revenue, customer loss rates, and customer account issues, among other items. The complaint seeks damages, costs and fees, rescission, rescissory damages, and other equitable relief. In May 2020, the court dismissed the complaint. Plaintiffs appealed that decision, and the appeal is pending.

State Tax Suits

Since 2012, a number of Missouri municipalities have asserted claims in the Circuit Court of St. Louis County, Missouri, alleging that we and several of our subsidiaries have underpaid taxes. These municipalities are seeking, among other things, declaratory relief regarding the application of business license and gross receipts taxes and back taxes from 2007 to the present, plus penalties and interest. In a February 2017 ruling in connection with one of these pending cases, the court entered an order awarding plaintiffs $4 million and broadening the tax base on a going-forward basis. We appealed that decision to the Missouri Supreme Court. In December 2019, it affirmed the circuit court's order in some respects and reversed it in others, remanding the case to the circuit court for further proceedings. The Missouri Supreme Court's decision reduced our exposure in the case. In a June 2021 ruling in one of the pending cases, another trial court awarded the cities of Columbia and Joplin approximately $55 million, plus statutory interest. We have appealed that decision to the Missouri Court of Appeals. That appeal is pending. If the trial court's decision is not overturned or modified in light of the Missouri Supreme Court's decision, it will result in a tax liability to us in excess of our reserved accruals established for these matters. We continue to vigorously defend against these claims.

Billing Practices Suits

In June 2017, a former employee filed an employment lawsuit against us claiming that she was wrongfully terminated for alleging that we charged some of our retail customers for products and services they did not authorize. Thereafter, based in part on the allegations made by the former employee, several legal proceedings were filed, including consumer class actions in federal and state courts, a series of securities investor class actions in federal courts and several shareholder derivative actions in federal and Louisiana state courts. The derivative cases were brought on behalf of CenturyLink, Inc. against certain current and former officers and directors of the Company and seek damages for alleged breaches of fiduciary duties.

The consumer class actions, the securities investor class actions, and the federal derivative actions were transferred to the U.S. District Court for the District of Minnesota for coordinated and consolidated pretrial proceedings as In Re: CenturyLink Sales Practices and Securities Litigation. We have settled the consumer and securities investor class actions. Those settlements are final. The derivative actions remain pending.

We have engaged in discussions regarding related claims with a number of state attorneys general, and have entered into agreements settling certain of the consumer practices claims asserted by state attorneys general. While we do not agree with allegations raised in these matters, we have been willing to consider reasonable settlements where appropriate.

December 2018 Outage Proceedings

We experienced an outage on one of our transport networks that impacted voice, IP, 911, and transport services for some of our customers between the 27th and 29th of December 2018. We believe that the outage was caused by a faulty network management card from a third-party equipment vendor.
The FCC and four states (both Washington Utilities and Transportation Commission ("WUTC") and the Washington Attorney General; the Montana Public Service Commission; the Nebraska Public Service Commission; and the Wyoming Public Service Commission) initiated formal investigations. In November 2020, following the FCC's release of a public report on the outage, we negotiated a settlement which was released by the FCC in December 2020. The amount of the settlement was not material to our financial statements.

In December 2020, the Staff of the WUTC filed a complaint against us based on the December 2018 outage, seeking penalties owed for alleged violations of Washington regulations and laws. We have denied the allegations and will defend the claims asserted.

Peruvian Tax Litigation

In 2005, the Peruvian tax authorities ("SUNAT") issued tax assessments against one of our Peruvian subsidiaries asserting $26 million, of additional income tax withholding and value-added taxes ("VAT"), penalties and interest for calendar years 2001 and 2002 on the basis that the Peruvian subsidiary incorrectly documented its importations. In May 2021, the Company paid the remaining amount on the fractioning regimes entered into by the Company to pay the amount assessed while it was appealed.

We challenged the assessments via administrative and then judicial review processes. In October 2011, the highest administrative review tribunal (the Tribunal) decided the central issue underlying the 2002 assessments in SUNAT's favor. We appealed the Tribunal's decision to the first judicial level, which decided the central issue in favor of Level 3. SUNAT and we filed cross-appeals with the court of appeal. In May 2017, the court of appeal issued a decision reversing the first judicial level. In June 2017, we filed an appeal of the decision to the Supreme Court of Justice, the final judicial level. Oral argument was held before the Supreme Court of Justice in October 2018. A decision on this case is pending.

In October 2013, the Tribunal decided the central issue underlying the 2001 assessments in SUNAT’s favor. We appealed that decision to the first judicial level in Peru, which decided the central issue in favor of SUNAT. In June 2017, we filed an appeal with the court of appeal. In November 2017, the court of appeals issued a decision affirming the first judicial level and we filed an appeal of the decision to the Supreme Court of Justice. Oral argument was held before the Supreme Court of Justice in June 2019. In May 2021, the Company was served with a favorable and final decision from the Supreme Court of Justice. The Company is working with SUNAT to provide additional information before SUNAT submits its plan for complying with the Supreme Court of Justice's decision.

Brazilian Tax Claims

The São Paulo and Rio de Janeiro state tax authorities have issued tax assessments against our Brazilian subsidiaries for the Tax on Distribution of Goods and Services (“ICMS”), mainly with respect to revenue from leasing certain assets and revenue from the provision of Internet access services by treating such activities as the provision of communications services, to which the ICMS tax applies. We filed objections to these assessments in both states, arguing among other things that neither the lease of assets nor the provision of Internet access qualifies as communication services subject to ICMS.

We have appealed to the respective state judicial courts the decisions by the respective state administrative courts that rejected our objections to these assessments. In cases in which state lower courts ruled partially in our favor finding that the lease assets are not subject to ICMS, and in connection, the State appealed those rulings. In other cases, the assessment was affirmed at the first administrative level and our appeal to the second administrative level is pending. Other assessments are still pending state judicial decisions.

We are vigorously contesting all such assessments in both states and view the assessment of ICMS on revenue from equipment leasing and Internet access to be without merit. These assessments, if upheld, could result in a loss of up to $46 million as of December 31, 2021, in excess of the reserved accruals established for these matters.
Qui Tam Action

Level 3 was notified in late 2017 of a qui tam action pending against Level 3 Communications, Inc. and others in the U.S. District Court for the Eastern District of Virginia, captioned United States of America ex rel., Stephen Bishop v. Level 3 Communications, Inc. et al. The amended complaint alleged that Level 3, principally through two former employees, submitted false claims and made false statements to the government in connection with two government contracts. The relator sought damages in this lawsuit of approximately $50 million. The case was settled in the second quarter of 2021 for an immaterial amount. This matter is now fully resolved.

Other Proceedings, Disputes and Contingencies

From time to time, we are involved in other proceedings incidental to our business, including patent infringement allegations, regulatory hearings relating primarily to our rates or services, actions relating to employee claims, various tax issues, environmental law issues, grievance hearings before labor regulatory agencies and miscellaneous third-party tort actions or commercial disputes.

We are currently defending several patent infringement lawsuits asserted against us by non-practicing entities, many of which are seeking substantial recoveries. These cases have progressed to various stages and one or more may go to trial within the next 12 months if they are not otherwise resolved. Where applicable, we are seeking full or partial indemnification from our vendors and suppliers. As with all litigation, we are vigorously defending these actions and, as a matter of course, are prepared to litigate these matters to judgment, as well as to evaluate and consider all reasonable settlement opportunities.

We are subject to various foreign, federal, state and local environmental protection and health and safety laws. From time to time, we are subject to judicial and administrative proceedings brought by various governmental authorities under these laws. Several such proceedings are currently pending, but none is reasonably expected to exceed $300,000 in fines and penalties.

The outcome of these other proceedings described under this heading is not predictable. However, based on current circumstances, we do not believe that the ultimate resolution of these other proceedings, after considering available defenses and any insurance coverage or indemnification rights, will have a material adverse effect on us.

The matters listed in this Note do not reflect all of our contingencies. The ultimate outcome of the above-described matters may differ materially from the outcomes anticipated, estimated, projected or implied by us in certain of our statements appearing above in this Note, and proceedings currently viewed as immaterial by us may ultimately materially impact us.

Right-of-Way

At December 31, 2021, our future rental commitments and Right-of-Way agreements were as follows:
 Right-of-Way Agreements
 (Dollars in millions)
2022$246 
202399 
202484 
202574 
202671 
2027 and thereafter962 
Total future minimum payments$1,536 
Purchase Commitments

We have several commitments primarily for marketing activities and support services from a variety of vendors to be used in the ordinary course of business totaling $1.1 billion at December 31, 2021. Of this amount, we expect to purchase $414 million in 2022, $386 million in 2023 through 2024, $91 million in 2025 through 2026 and $188 million in 2027 and thereafter. These amounts do not represent our entire anticipated purchases in the future, but represent only those items for which we were contractually committed as of December 31, 2021.

Amounts included in the Right-of-Way table and in the purchase commitments disclosed above are inclusive of contractual obligations related to our Latin American and ILEC businesses to be divested.
v3.22.0.1
Other Financial Information
12 Months Ended
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Other Financial Information Other Financial Information
Other Current Assets

The following table presents details of other current assets in our consolidated balance sheets:
 As of December 31,
 20212020
 (Dollars in millions)
Prepaid expenses$295 290 
Income tax receivable22 
Materials, supplies and inventory96 105 
Contract assets45 66 
Contract acquisition costs142 173 
Contract fulfillment costs106 114 
Note receivable56 — 
Receivable for sale of land56 — 
Other11 53 
Total other current assets(1)
$829 808 
______________________________________________________________________
(1)As of December 31, 2021, other current assets exclude $126 million that have been reclassified as held for sale.

Included in accounts payable at December 31, 2021 and 2020 were $248 million and $329 million, respectively, associated with capital expenditures.
v3.22.0.1
Repurchases of Lumen Common Stock
12 Months Ended
Dec. 31, 2021
Equity [Abstract]  
Repurchases of Lumen Common Stock Repurchases of Lumen Common StockEffective August 3, 2021, our Board of Directors authorized a 24-month program to repurchase up to an aggregate of $1.0 billion of our outstanding common stock. During the year ended December 31, 2021, we repurchased under this program 80.9 million shares of our outstanding common stock in the open market for an aggregate market price of $1.0 billion, or an average purchase price of $12.36 per share, thereby fully exhausting the program. All repurchased common stock has been retired. As a result, common stock and additional paid-in capital were reduced as of December 31, 2021 by $81 million and $919 million, respectively.Dividends
Our Board of Directors declared the following dividends payable in 2021 and 2020:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
November 18, 202111/29/2021$0.25 $251 12/10/2021
August 19, 20218/30/20210.25 264 9/10/2021
May 20, 20216/1/20210.25 272 6/11/2021
February 25, 20213/8/20210.25 276 3/19/2021
November 19, 202011/30/20200.25 274 12/11/2020
August 20, 20208/31/20200.25 274 9/11/2020
May 20, 20206/1/20200.25 274 6/12/2020
February 27, 20203/9/20200.25 274 3/20/2020

The declaration of dividends is solely at the discretion of our Board of Directors, which may change or terminate our dividend practice at any time for any reason without prior notice. On February 24, 2022, our Board of Directors declared a quarterly cash dividend of $0.25 per share.
v3.22.0.1
Accumulated Other Comprehensive Loss
12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Loss
Information Relating to 2021

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2021:
Pension PlansPost-Retirement
Benefit Plans
Foreign Currency
Translation
Adjustment
and Other
Interest Rate SwapTotal
 (Dollars in millions)
Balance at December 31, 2020$(2,197)(272)(265)(79)(2,813)
Other comprehensive income (loss) before reclassifications197 94 (135)(1)155 
Amounts reclassified from accumulated other comprehensive loss423 14 — 63 500 
Net current-period other comprehensive income (loss)620 108 (135)62 655 
Balance at December 31, 2021$(1,577)(164)(400)(17)(2,158)

The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2021:
Year Ended December 31, 2021Decrease (Increase)
in Net Income
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swaps$83 Interest expense
Income tax benefit(20)Income tax expense
Net of tax$63 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$190Other expense, net
Settlement charge383Other expense, net
Prior service cost6Other expense, net
Total before tax579  
Income tax benefit(142)Income tax expense
Net of tax$437  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
Information Relating to 2020

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2020:
Pension PlansPost-Retirement
Benefit Plans
Foreign Currency
Translation
Adjustment
and Other
Interest Rate SwapTotal
 (Dollars in millions)
Balance at December 31, 2019$(2,229)(184)(228)(39)(2,680)
Other comprehensive loss before reclassifications(115)(103)(37)(86)(341)
Amounts reclassified from accumulated other comprehensive loss147 15 — 46 208 
Net current-period other comprehensive income (loss)32 (88)(37)(40)(133)
Balance at December 31, 2020$(2,197)(272)(265)(79)(2,813)

The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2020:
Year Ended December 31, 2020(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swap$62 Interest expense
Income tax benefit(16)Income tax expense
Net of tax$46 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$203 Other expense, net
Prior service costOther expense, net
Curtailment lossOther expense, net
Total before tax214  
Income tax benefit(52)Income tax expense
Net of tax$162  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
v3.22.0.1
Labor Union Contracts
12 Months Ended
Dec. 31, 2021
Risks and Uncertainties [Abstract]  
Labor Union Contracts Labor Union ContractsAs of December 31, 2021, approximately 21% of our employees were represented by the Communication Workers of America ("CWA") or the International Brotherhood of Electrical Workers ("IBEW"). Approximately 9% of our represented employees are subject to collective bargaining agreements that are scheduled to expire over the 12 month period ending December 31, 2022.
v3.22.0.1
Dividends
12 Months Ended
Dec. 31, 2021
Dividends, Common Stock [Abstract]  
Dividends Repurchases of Lumen Common StockEffective August 3, 2021, our Board of Directors authorized a 24-month program to repurchase up to an aggregate of $1.0 billion of our outstanding common stock. During the year ended December 31, 2021, we repurchased under this program 80.9 million shares of our outstanding common stock in the open market for an aggregate market price of $1.0 billion, or an average purchase price of $12.36 per share, thereby fully exhausting the program. All repurchased common stock has been retired. As a result, common stock and additional paid-in capital were reduced as of December 31, 2021 by $81 million and $919 million, respectively.Dividends
Our Board of Directors declared the following dividends payable in 2021 and 2020:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
November 18, 202111/29/2021$0.25 $251 12/10/2021
August 19, 20218/30/20210.25 264 9/10/2021
May 20, 20216/1/20210.25 272 6/11/2021
February 25, 20213/8/20210.25 276 3/19/2021
November 19, 202011/30/20200.25 274 12/11/2020
August 20, 20208/31/20200.25 274 9/11/2020
May 20, 20206/1/20200.25 274 6/12/2020
February 27, 20203/9/20200.25 274 3/20/2020

The declaration of dividends is solely at the discretion of our Board of Directors, which may change or terminate our dividend practice at any time for any reason without prior notice. On February 24, 2022, our Board of Directors declared a quarterly cash dividend of $0.25 per share.
v3.22.0.1
Background and Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
General
General

We are an international facilities-based technology and communications company engaged primarily in providing a broad array of integrated products and services to our business and mass markets customers. Our specific products and services are detailed in Note 4—Revenue Recognition.
Basis of Presentation
Basis of Presentation

The accompanying consolidated financial statements include our accounts and the accounts of our subsidiaries in which we have a controlling interest. Intercompany amounts and transactions with our consolidated subsidiaries have been eliminated. In connection with our acquisition of Level 3 in 2017, we acquired its deconsolidated Venezuela subsidiary and due to exchange restrictions and other conditions have assigned no value to this subsidiary's assets. Additionally, we have excluded this subsidiary from our consolidated financial statements.

To simplify the overall presentation of our consolidated financial statements, we report immaterial amounts attributable to noncontrolling interests in certain of our subsidiaries as follows: (i) income attributable to noncontrolling interests in other expense, net, (ii) equity attributable to noncontrolling interests in additional paid-in capital and (iii) cash flows attributable to noncontrolling interests in other, net financing activities.
Reclassification We reclassified certain prior period amounts to conform to the current period presentation, including the categorization of our revenue and expenses in our segment reporting for 2021, 2020 and 2019. See Note 17—Segment Information for additional information. These changes had no impact on total operating revenue, total operating expenses or net income (loss) for any period.
Operating Expenses
Operating Expenses

Our current definitions of operating expenses are as follows:

Cost of services and products (exclusive of depreciation and amortization) are expenses incurred in providing products and services to our customers. These expenses include: employee-related expenses directly attributable to operating and maintaining our network (such as salaries, wages, benefits and professional fees); facilities expenses (which include third-party telecommunications expenses we incur for using other carriers' networks to provide services to our customers); rents and utilities expenses; equipment sales expenses (such as data integration and modem expenses); and other expenses directly related to our operations; and

Selling, general and administrative expenses are corporate overhead and other operating expenses. These expenses include: employee-related expenses (such as salaries, wages, internal commissions, benefits and professional fees) directly attributable to selling products or services and employee-related expenses for administrative functions; marketing and advertising; property and other operating taxes and fees; external commissions; litigation expenses associated with general matters; bad debt expense; and other selling, general and administrative expenses.

These expense classifications may not be comparable to those of other companies.
Use of Estimates
Use of Estimates

Our consolidated financial statements are prepared in accordance with U.S. generally accepted accounting principles. These accounting principles require us to make certain estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions we make when accounting for specific items and matters are reasonable, based on information available at the time they are made. These estimates, judgments and assumptions can materially affect the reported amounts of assets, liabilities and components of stockholders' equity as of the dates of the consolidated balance sheets, as well as the reported amounts of revenue, expenses and components of cash flows during the periods presented in our other consolidated financial statements. We also make estimates in our assessments of potential losses in relation to threatened or pending tax and legal matters. See Note 16—Income Taxes and Note 18—Commitments, Contingencies and Other Items for additional information.

For matters not related to income taxes, if a loss contingency is considered probable and the amount can be reasonably estimated, we recognize an expense for the estimated loss. If we have the potential to recover a portion of the estimated loss from a third party, we make a separate assessment of recoverability and reduce the estimated loss if recovery is also deemed probable.

For matters related to income taxes, if we determine that the impact of an uncertain tax position is more likely than not to be sustained upon audit by the relevant taxing authority, then we recognize a benefit for the largest amount that is more likely than not to be sustained. No portion of an uncertain tax position will be recognized if the position has less than a 50% likelihood of being sustained. Interest is recognized on the amount of unrecognized benefit from uncertain tax positions.

For all of these and other matters, actual results could differ materially from our estimates.
Assets Held for Sale Assets Held for SaleWe classify assets and related liabilities as held for sale when: (i) management has committed to a plan to sell the assets, (ii) the net assets are available for immediate sale, (iii) there is an active program to locate a buyer and (iv) the sale and transfer of the net assets is probable within one year. Assets and liabilities held for sale are presented separately on our consolidated balance sheets with a valuation allowance, if necessary, to recognize the net carrying amount at the lower of cost or fair value, less costs to sell. Depreciation of property, plant and equipment and amortization of finite-lived intangible assets and right-of-use assets are not recorded while these assets are classified as held for sale. For each period that assets are classified as being held for sale, they are tested for recoverability. Unless otherwise specified, the amounts and information presented in the notes do not include assets and liabilities that have been reclassified as held for sale as of December 31, 2021.
Revenue Recognition
Revenue Recognition

We earn most of our consolidated revenue from contracts with customers, primarily through the provision of communications and other services. Revenue from contracts with customers is accounted for under Accounting Standards Codification ("ASC") 606. We also earn revenue from leasing arrangements (primarily fiber capacity and colocation agreements) and governmental subsidy payments, which are not accounted for under ASC 606.

Revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to receive in exchange for those goods or services. Revenue is recognized based on the following five-step model:

Identification of the contract with a customer;

Identification of the performance obligations in the contract;

Determination of the transaction price;

Allocation of the transaction price to the performance obligations in the contract; and
Recognition of revenue when, or as, we satisfy a performance obligation.

We provide an array of communications services to business and residential customers, including local voice, VPN, Ethernet, data, broadband, private line (including special access), network access, transport, voice, information technology, video and other ancillary services. We provide these services to a wide range of businesses, including global, enterprise, wholesale, government, and small and medium business customers. Certain contracts also include the sale of equipment, which is not significant to our business.

We recognize revenue for services when we provide the applicable service or when control of a product is transferred. Recognition of certain payments received in advance of services being provided is deferred. These advance payments may include certain activation and certain installation charges. If the activation and installation charges are not separate performance obligations, we recognize them as revenue over the actual or expected contract term using historical experience, which ranges from one to five years depending on the service. In most cases, termination fees or other fees on existing contracts that are negotiated in conjunction with new contracts are deferred and recognized over the new contract term.

For access services, we generally bill fixed monthly charges one month in advance to customers and recognize revenue as service is provided over the contract term in alignment with the customer's receipt of service. For usage and other ancillary services, we generally bill in arrears and recognize revenue as usage or delivery occurs. In most cases, the amount invoiced for our service offerings constitutes the price that would be billed on a standalone basis.

In certain cases, customers may be permitted to modify their contracts. We evaluate the change in scope or price to identify whether the modification should be treated as a separate contract, whether the modification is a termination of the existing contract and creation of a new contract, or if it is a change to the existing contract.

Customer contracts are evaluated to determine whether the performance obligations are separable. If the performance obligations are deemed separable and separate earnings processes exist, the total transaction price that we expect to receive with the customer is allocated to each performance obligation based on its relative standalone selling price. The revenue associated with each performance obligation is then recognized as earned.

We periodically sell optical capacity on our network. These transactions are generally structured as indefeasible rights of use, commonly referred to as IRUs, which are the exclusive right to use a specified amount of capacity or fiber for a specified term, typically 10 to 20 years. In most cases, we account for the cash consideration received on transfers of optical capacity as ASC 606 revenue which is adjusted for the time value of money and is recognized ratably over the term of the agreement. Cash consideration received on transfers of dark fiber is accounted for as non-ASC 606 lease revenue, which we also recognize ratably over the term of the agreement. We do not recognize revenue on any contemporaneous exchanges of our optical capacity assets for other non-owned optical capacity assets.

In connection with offering products and services provided to the end user by third-party vendors, we review the relationship between us, the vendor and the end user to assess whether revenue should be reported on a gross or net basis. In assessing whether revenue should be reported on a gross or net basis, we consider whether we act as a principal in the transaction and control the goods and services used to fulfill the performance obligations associated with the transaction.

We have service level commitments pursuant to contracts with certain of our customers. To the extent that we determine that such service levels were not achieved or may not have been achieved, we estimate the amount of credits to be issued and record a corresponding reduction to revenue in the period that the service level commitment was not met.

Customer payments are made based on billing schedules included in our customer contracts, which is typically on a monthly basis.
We defer (or capitalize) incremental contract acquisition and fulfillment costs and recognize (or amortize) such costs over the average contract life. Our deferred contract costs for our customers have average amortization periods of approximately 30 months for mass markets customers and 29 months for business customers. These deferred costs are periodically monitored to reflect any significant change in assumptions.
Advertising Costs Advertising CostsCosts related to advertising are expensed as incurred and included in selling, general and administrative expenses in our consolidated statements of operations.
Legal Costs
Legal Costs

In the normal course of our business, we incur costs to hire and retain external legal counsel to advise us on regulatory, litigation and other matters. Subject to certain exceptions, we expense these costs as the related services are received.
Income Taxes
Income Taxes

We file a consolidated federal income tax return with our eligible subsidiaries. The provision for income taxes reflects taxes currently payable, tax consequences deferred to future periods and adjustments to our liabilities for uncertain tax positions. We record deferred income tax assets and liabilities reflecting future tax consequences attributable to tax net operating loss carryforwards ("NOLs"), tax credit carryforwards and differences between the financial statement carrying value of assets and liabilities and the tax basis of those assets and liabilities. Deferred taxes are computed using enacted tax rates expected to apply in the year in which the differences are expected to affect taxable income. The effect on deferred income tax assets and liabilities of a change in tax rate is recognized in earnings in the period that includes the enactment date.
We establish valuation allowances when necessary to reduce deferred income tax assets to the amounts that we believe are more likely than not to be recovered. Each quarter we evaluate the need to retain or adjust each valuation allowance on our deferred tax assets.
Cash and Cash Equivalents
Cash and Cash Equivalents

Cash and cash equivalents include highly liquid investments that are readily convertible into cash and are not subject to significant risk from fluctuations in interest rates. As a result, the value at which cash and cash equivalents are reported in our consolidated financial statements approximates their fair value. In evaluating investments for classification as cash equivalents, we require that individual securities have original maturities of ninety days or less and that individual investment funds have dollar-weighted average maturities of ninety days or less. To preserve capital and maintain liquidity, we invest with financial institutions we deem to be of sound financial condition and in high quality and relatively risk-free investment products. Our cash investment policy limits the concentration of investments with specific financial institutions or among certain products and includes criteria related to credit worthiness of any particular financial institution.

Book overdrafts occur when we have issued checks but they have not yet been presented to our controlled disbursement bank accounts for payment. Disbursement bank accounts allow us to delay funding of issued checks until the checks are presented for payment. Until the issued checks are presented for payment, the book overdrafts are included in accounts payable on our consolidated balance sheets. This activity is included in the operating activities section in our consolidated statements of cash flows. There were no book overdrafts included in accounts payable at December 31, 2021 or 2020.
Restricted Cash
Restricted Cash

Restricted cash consists primarily of cash and investments that collateralize our outstanding letters of credit and certain performance and operating obligations. Restricted cash and securities are recorded as current or non-current assets in the consolidated balance sheets depending on the duration of the restriction and the purpose for which the restriction exists. Restricted securities are stated at cost which approximated their fair value as of December 31, 2021 and 2020.
Accounts Receivable and Allowance for Credit Losses
Accounts Receivable and Allowance for Credit Losses

Accounts receivable are recognized based upon the amount due from customers for the services provided or at cost for purchased and other receivables, less an allowance for credit losses. We use a loss rate method to estimate our allowance for credit losses. For more information on our methodology for estimating our allowance for credit losses, see Note 6—Credit Losses on Financial Instruments.

We generally consider our accounts past due if they are outstanding over 30 days. Our past due accounts are written off against our allowance for credit losses when collection is considered to be not probable. Any recoveries of accounts previously written off are generally recognized as a reduction in bad debt expense in the period received. The carrying value of accounts receivable net of the allowance for credit losses approximates fair value. Accounts receivable balances acquired in a business combination are recorded at fair value for all balances receivable at the acquisition date and at the invoiced amount for those amounts invoiced after the acquisition date.
Property, Plant and Equipment
Property, Plant and Equipment

We record property, plant and equipment acquired in connection with our acquisitions based on its estimated fair value as of its acquisition date plus the estimated value of any associated legally or contractually required retirement obligations. We record purchased and constructed property, plant and equipment at cost, plus the estimated value of any associated legally or contractually required retirement obligations. We depreciate the majority of our property, plant and equipment using the straight-line group method over the estimated useful lives of groups of assets, but depreciate certain of our assets using the straight-line method over the estimated useful lives of the specific asset. Under the straight-line group method, assets dedicated to providing telecommunications services (which comprise the majority of our property, plant and equipment) that have similar physical characteristics, use and expected useful lives are pooled for purposes of depreciation and tracking. The equal life group procedure is used to establish each pool's average remaining useful life. Generally, under the straight-line group method, when an asset is sold or retired in the course of normal business activities, the cost is deducted from property, plant and equipment and charged to accumulated depreciation without recognition of a gain or loss. A gain or loss is recognized in our consolidated statements of operations only if a disposal is unusual. Leasehold improvements are amortized over the shorter of the useful lives of the assets or the expected lease term. Expenditures for maintenance and repairs are expensed as incurred. Interest is capitalized during the construction phase of network and other internal-use capital projects. Employee-related costs for construction of network and other internal use assets are also capitalized during the construction phase. Property, plant and equipment supplies used internally are carried at average cost, except for significant individual items which are carried at actual cost.

We perform annual internal reviews to evaluate the reasonableness of the depreciable lives for our property, plant and equipment. Our reviews utilize models that take into account actual usage, physical wear and tear, replacement history, assumptions about technology evolution and, in certain instances, actuarially determined probabilities to estimate the remaining useful life of our asset base. Our remaining useful life assessments evaluate the possible loss in service value of assets that may precede the physical retirement. Assets shared among many customers may lose service value as those customers reduce their use of the asset. However, the asset is not retired until all customers no longer utilize the asset and we determine there is no alternative use for the asset.

We have asset retirement obligations associated with the legally or contractually required removal of a limited group of property, plant and equipment assets from leased properties and the disposal of certain hazardous materials present in our owned properties. When an asset retirement obligation is identified, usually in association with the acquisition of the asset, we record the fair value of the obligation as a liability. The fair value of the obligation is also capitalized as property, plant and equipment and then amortized over the estimated remaining useful life of the associated asset. Where the removal obligation is not legally binding, the net cost to remove assets is expensed in the period in which the costs are actually incurred.
We review long-lived tangible assets for impairment whenever facts and circumstances indicate that the carrying amounts of the assets may not be recoverable. For assessment purposes, long-lived assets are grouped with other assets and liabilities at the lowest identifiable level for which we generate cash flows independently of other groups of assets and liabilities, absent a material change in operations. An impairment loss is recognized only if the carrying amount of the asset group is not recoverable and exceeds its estimated fair value. Recoverability of the asset group to be held and used is assessed by comparing the carrying amount of the asset group to the estimated undiscounted future net cash flows expected to be generated by the asset group. If the asset group's carrying value is not recoverable, we recognize an impairment charge for the amount by which the carrying amount of the asset group exceeds its estimated fair value.
Goodwill, Customer Relationships and Other Intangible Assets
Goodwill, Customer Relationships and Other Intangible Assets

Intangible assets arising from business combinations, such as goodwill, customer relationships, capitalized software, trademarks and trade names, are initially recorded at estimated fair value. We amortize customer relationships primarily over an estimated life of 7 to 14 years, using the straight-line method, depending on the type of customer. Certain customer relationship intangible assets became fully amortized at the end of the first quarter 2021 using the sum-of-years-digits method, which is no longer used. We amortize capitalized software using the straight-line method primarily over estimated lives ranging up to 7 years. We amortize our other intangible assets using the straight-line method over an estimated life of 4 to 20 years. Other intangible assets not arising from business combinations are initially recorded at cost. Where there are no legal, regulatory, contractual or other factors that would reasonably limit the useful life of an intangible asset, we classify the intangible asset as indefinite-lived and such intangible assets are not amortized.

Internally used software, whether purchased or developed by us, is capitalized and amortized using the straight-line method over its estimated useful life. We have capitalized certain costs associated with software such as costs of employees devoted to software development and external direct costs for materials and services. Costs associated with software to be used for internal purposes are expensed until the point at which the project has reached the development stage. Subsequent additions, modifications or upgrades to internal-use software are capitalized only to the extent that they allow the software to perform a task it previously did not perform. Software maintenance, data conversion and training costs are expensed in the period in which they are incurred. We review the remaining economic lives of our capitalized software annually. Capitalized software is included in other intangible assets, net, in our consolidated balance sheets.

Our long-lived intangible assets, other than goodwill, with indefinite lives are assessed for impairment annually, or, under certain circumstances, more frequently, such as when events or changes in circumstances indicate there may be an impairment. These assets are carried at the estimated fair value at the time of acquisition and assets not acquired in acquisitions are recorded at historical cost. However, if their estimated fair value is less than the carrying amount, we recognize an impairment charge for the amount by which the carrying amount of these assets exceeds their estimated fair value.

We are required to assess goodwill for impairment at least annually, or more frequently, if an event occurs or circumstances change that indicates it is more likely than not that the fair values of any of our reporting units were less than their carrying values. We are required to write-down the value of goodwill in periods in which the recorded carrying value of equity exceeds the fair value of equity. Our reporting units are not discrete legal entities with discrete full financial statements. Therefore, the equity carrying value and future cash flows are assessed each time a goodwill impairment assessment is performed on a reporting unit. To do so, we assign our assets, liabilities and cash flows to reporting units using reasonable and consistent allocation methodologies, which entail various estimates, judgments and assumptions.

We are required to reassign goodwill to reporting units whenever reorganizations of our internal reporting structure changes the composition of our reporting units. Goodwill is reassigned to the reporting units using a relative fair value approach. When the fair value of a reporting unit is available, we allocate goodwill based on the relative fair value of the reporting units. When fair value is not available, we utilize an alternative allocation methodology that represents a reasonable approximation of the fair value of the operations being reorganized.
Derivatives and Hedging
Derivatives and Hedging

From time to time we have used derivative instruments to hedge exposure to interest rate risks arising from fluctuation in interest rates. We account for derivative instruments in accordance with ASC 815, Derivatives and Hedging, which establishes accounting and reporting standards for derivative instruments. We do not use derivative financial instruments for speculative purposes.
Derivatives are recognized in the consolidated balance sheets at their fair values. When we become a party to a derivative instrument and intend to apply hedge accounting, we formally document the hedge relationship and the risk management objective for undertaking the hedge which includes designating the instrument for financial reporting purposes as a fair value hedge, a cash flow hedge, or a net investment hedge.
We evaluate the effectiveness of our variable-to-fixed interest rate swap agreements described in Note 15—Derivative Financial Instruments (designated as cash-flow hedges) qualitatively on a quarterly basis. The change in the fair value of the interest rate swaps is reflected in Accumulated Other Comprehensive Loss (“AOCI”) and is subsequently reclassified into earnings in the period the hedged transaction affects earnings, by virtue of qualifying as effective cash flow hedges.
Pension and Post-Retirement Benefits Pension and Post-Retirement BenefitsWe recognize the funded status of our defined benefit and post-retirement plans as an asset or a liability on our consolidated balance sheets. Each year's actuarial gains or losses are a component of our other comprehensive loss, which is then included in our accumulated other comprehensive loss. Pension and post-retirement benefit expenses are recognized over the period in which the employee renders service and becomes eligible to receive benefits. We make significant assumptions (including the discount rate, expected rate of return on plan assets, mortality and health care trend rates) in computing the pension and post-retirement benefits expense and obligations.
Foreign Currency
Foreign Currency

Local currencies of our foreign subsidiaries are the functional currencies for financial reporting purposes except for certain foreign subsidiaries, primarily in Latin America. For operations outside the United States that have functional currencies other than the U.S. dollar, assets and liabilities are translated to U.S. dollars at period-end exchange rates, and revenue, expenses and cash flows are translated using average monthly exchange rates. A significant portion of our non-United States subsidiaries use either the British pound, the Euro or the Brazilian Real as their functional currency, each of which experienced significant fluctuations against the U.S. dollar during the years ended December 31, 2021, 2020 and 2019. We recognize foreign currency translation gains and losses as a component of accumulated other comprehensive loss in stockholders' equity and in our consolidated statements of comprehensive income (loss) in accordance with accounting guidance for foreign currency translation. Prior to the announcement of our divestitures as discussed in Note 2—Planned Divestiture of the Latin American and ILEC Businesses, we considered the majority of our investments in our foreign subsidiaries to be long-term in nature. Our foreign currency transaction gains (losses), including where transactions with our non-United States subsidiaries are not considered to be long-term in nature, are included within other expense, net on our consolidated statements of operations. See the description of our Assets Held for Sale policy above for more information on assets in foreign subsidiaries to be divested.
Common Stock, Preferred Stock, Section 382 Rights Plan and Dividends
Common Stock

As of December 31, 2021, we had 36 million shares authorized for future issuance under our equity incentive plans.

Preferred Stock

Holders of outstanding Lumen Technologies preferred stock are entitled to receive cumulative dividends, receive preferential distributions equal to $25 per share plus unpaid dividends upon Lumen's liquidation and vote as a single class with the holders of common stock.
Section 382 Rights Plan

We maintain a Section 382 Rights Plan to protect our U.S. federal net operating loss carryforwards from certain Internal Revenue Code Section 382 limitations. Under the plan, one preferred stock purchase right was distributed for each share of our outstanding common stock as of the close of business on February 25, 2019, and those rights currently trade in tandem with the common stock until they expire or detach under the plan. This plan was designed to deter trading that would result in a change of control (as defined in Code Section 382), and therefore protect our ability to use our historical federal net operating losses in the future.

Dividends

The declaration and payment of dividends is at the discretion of our Board of Directors.
Recently Adopted and Recently Issued Accounting Pronouncements
Recently Adopted Accounting Pronouncements

During 2021, we adopted Accounting Standards Update ("ASU") 2020-09, "Debt (Topic 470) Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762" ("ASU 2020-09"), ASU 2020-01, "Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815)" ("ASU 2020-01"), and ASU 2019-12, "Simplifying the Accounting for Income Taxes (Topic 740)" ("ASU 2019-12"). During 2020, we adopted ASU 2016-13, "Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"). During 2019, we adopted ASU 2016-02, "Leases (ASC 842)" ("ASU 2016-02").

Each of these is described further below.

Debt

On January 1, 2021, we adopted ASU 2020-09. This ASU amends and supersedes various SEC guidance to reflect SEC Release No. 33-10762, which includes amendments to the financial disclosure requirements applicable to registered debt offerings that include credit enhancements, such as subsidiary guarantees. The adoption of ASU 2020-09 did not have a material impact to our consolidated financial statements.

Investments

On January 1, 2021, we adopted ASU 2020-01. This ASU, among other things, clarifies that a company should consider observable transactions that require a company to either apply or discontinue the equity method of accounting under Topic 323, Investments - Equity Method and Joint Ventures, for the purposes of applying the measurement alternative in accordance with Topic 321 immediately before applying or upon discontinuing the equity method. As of December 31, 2021, we determined there was no application or discontinuation of the equity method during the reporting periods covered in this report. The adoption of ASU 2020-01 did not have a material impact to our consolidated financial statements.

Income Taxes

On January 1, 2021, we adopted ASU 2019-12. This ASU removes certain exceptions for investments, intra-period allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. The adoption of ASU 2019-12 did not have a material impact to our consolidated financial statements.

Measurement of Credit Losses on Financial Instruments

We adopted ASU 2016-13 on January 1, 2020, and recognized a cumulative adjustment to our accumulated deficit as of the date of adoption of $9 million, net of tax effect of $2 million. Please refer to Note 6—Credit Losses on Financial Instruments for more information.
Leases

We adopted ASU 2016-02 on January 1, 2019, using the non-comparative transition option pursuant to ASU 2018-11 and recognized ASC 842's cumulative effect transition adjustment (discussed below) as of January 1, 2019. In addition, we elected to apply the practical expedients permitted under the transition guidance within the new standard, which among other things (i) allowed us to carry forward the historical lease classification; (ii) did not require us to reassess whether any expired or existing contracts are or contain leases under the new definition of a lease; and (iii) did not require us to reassess whether previously capitalized initial direct costs for any existing leases would qualify for capitalization under ASC 842. We also elected to apply the practical expedient related to land easements, allowing us to carry forward our accounting treatment for land easements on existing agreements. We did not elect to apply the hindsight practical expedient regarding the likelihood of exercising a lessee purchase option or assessing any impairment of right-of-use assets for existing leases.

On March 5, 2019, the Financial Accounting Standards Board ("FASB") issued ASU 2019-01, "Leases (ASC 842): Codification Improvements", ("ASU 2019-01") effective for public companies for fiscal years beginning after December 15, 2019. The new ASU aligns the guidance in ASC 842 for determining fair value of the underlying asset by lessors that are not manufacturers or dealers, with that of existing guidance. As a result, the fair value of the underlying asset at lease commencement is its cost, reflecting any volume or trade discounts that may apply. However, if there has been a significant lapse of time between when the underlying asset is acquired and when the lease commences, the definition of fair value (in ASC 820, "Fair Value Measurement") should be applied. We adopted ASU 2019-01 as of January 1, 2019.

We recorded a $96 million cumulative adjustment (net of tax of $37 million) to accumulated deficit as of January 1, 2019, for the impact of the new accounting standards.

Recently Issued Accounting Pronouncements

In November 2021, the FASB issued ASU 2021-10, “Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance” (“ASU 2021-10”). These amendments are expected to increase transparency in financial reporting by requiring business entities to disclose information about certain types of government assistance they receive. ASU 2021-10 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-10 in the first quarter of fiscal 2022 will have a material impact to our consolidated financial statements.

In October 2021, the FASB issued ASU 2021-08, “Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers” (“ASU 2021-08”), which requires entities to apply Topic 606 to recognize and measure contract assets and contract liabilities in a business combination. ASU 2021-08 will become effective for us in the first quarter of fiscal 2023 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-08 on January 1, 2023 will have a material impact to our consolidated financial statements.

In July 2021, the FASB issued ASU 2021-05, “Leases (Topic 842): Lessors—Certain Leases with Variable Lease Payments” (“ASU 2021-05”), which amends the lease classification requirements for lessors to align them with practice under ASC Topic 840. Under this ASU, lessors should classify and account for a lease with variable lease payments that do not depend on a reference index or a rate as an operating lease if certain criteria are met; and when a lease is classified as operating, the lessor does not recognize a net investment in the lease, does not derecognize the underlying asset, and, therefore, does not recognize a selling profit or loss. ASU 2021-05 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2021-05 on January 1, 2022 will have a material impact to our consolidated financial statements.
In January 2021, the FASB issued ASU 2021-01, "Reference Rate Reform (Topic 848): Scope" ("ASU 2021-01"), which clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. ASU 2021-01 also amends the expedients and exceptions in Topic 848 to capture the incremental consequences of the scope clarification and to tailor the existing guidance to derivative instruments affected by the discounting transition. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. ASU 2021-01 provides option guidance for a limited time to ease the potential burden in accounting for reference rate reform. Based on our review of our key material contracts through December 31, 2021, we do not expect ASU 2021-01 will have a material impact to our consolidated financial statements.

In August 2020, the FASB issued ASU 2020-06, “Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging— Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity”, which simplifies accounting for convertible instruments by removing major separation models required under the current ASC. Consequently, more convertible debt instruments will be reported as a single liability instrument and more convertible preferred stock as a single equity instrument with no separate accounting for embedded conversion features. ASU 2020-06 will become effective for us in the first quarter of fiscal 2022 and early adoption is permitted. As of December 31, 2021, we do not expect the cumulative effect of initially applying ASU 2020-06 on January 1, 2022 will have a material impact to our consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting" ("ASU 2020-04" or "Reference Rate Reform"), designed to ease the burden of accounting for contract modifications related to the global market-wide reference rate transition period. Subject to certain criteria, ASU 2020-04 provides qualifying entities the option to apply expedients and exceptions to contract modifications and hedging accounting relationships made until December 31, 2022. These amendments are effective immediately and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2022. ASU 2020-04 provides optional guidance for a limited time to ease the potential burden in accounting for reference rate reform. Based on our review of our key material contracts through December 31, 2021, we do not expect ASU 2020-04 will have a material impact to our consolidated financial statements.
v3.22.0.1
Planned Divestiture of the Latin American and ILEC Businesses (Tables)
12 Months Ended
Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract]  
Components of Pre-Tax Income and Held for Sale Assets and Liabilities The pre-tax net income of the disposal groups is estimated to be and reported as follows in the tables below:
 Years Ended December 31,
 202120202019
(Dollars in millions)
Latin American business pre-tax net income$214 160 30 
ILEC business pre-tax net income851 649 655 
Total disposal groups pre-tax net income$1,065 809 685 
The principal components of the held for sale assets and liabilities are as follows:


December 31, 2021
Latin American BusinessILEC BusinessTotal
(Dollars in millions)
Assets held for sale
Cash and cash equivalents$39 40 
Accounts receivable, less allowance of $3, $21 and $24
83 227 310 
Other current assets81 45 126 
Property, plant and equipment, net accumulated depreciation of $434, $8,303 and $8,737
1,591 3,491 5,082 
Goodwill (1)
239 2,615 2,854 
Other intangible assets, net126 158 284 
Other non-current assets75 38 113 
Total assets held for sale$2,234 6,575 8,809 
Liabilities held for sale
Accounts payable$101 64 165 
Salaries and benefits23 25 48 
Income and other taxes27 24 51 
Interest— 10 10 
Current portion of deferred revenue26 90 116 
Other current liabilities35 42 
Long-term debt, net of discounts (2)
— 1,377 1,377 
Deferred income taxes, net129 — 129 
Pension and other post-retirement benefits (3)
56 58 
Other non-current liabilities120 141 261 
Total liabilities held for sale$435 1,822 2,257 
______________________________________________________________________ 
(1)The assignment of goodwill was based on the relative fair values of the applicable reporting units prior to being reclassified as held for sale.
(2)Long-term debt, net of discounts, includes $1.4 billion of Embarq Senior notes, $117 million of related unamortized discounts and $57 million of long-term finance lease obligations.
(3)Excludes pension obligation of approximately $2.5 billion for the ILEC business as of December 31, 2021, which will be transferred to the purchaser of the ILEC business upon closing. As of December 31, 2021, approximately $2.2 billion, or 88%, of this pension obligation is expected to be funded through the transfer of Lumen pension plan assets to the purchaser. The remaining portion of the obligation is expected to be separately funded with cash paid by Lumen at the time of closing. See Note 11—Employee Benefits for additional information.
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill and other intangible assets
Goodwill, customer relationships and other intangible assets consisted of the following:
As of December 31,
20212020
 (Dollars in millions)
Goodwill$15,986 18,870 
Indefinite-lived intangible assets$278 
Other intangible assets subject to amortization: 
Customer relationships, less accumulated amortization of $11,740 and $11,060
5,365 6,344 
Capitalized software, less accumulated amortization of $3,624 and $3,279
1,459 1,520 
Trade names, patents and other, less accumulated amortization of $160 and $120
137 77 
Total other intangible assets, net$6,970 8,219 
Schedule of goodwill attributable to segments
The following table shows the rollforward of goodwill assigned to our reportable segments (including the January 2021 reorganization discussed above) from December 31, 2019 through December 31, 2021.


 International and Global AccountsEnterpriseSmall and Medium BusinessWholesaleConsumerBusinessMass MarketsTotal
 (Dollars in millions)
As of December 31, 2019(1)
$2,670 4,738 3,259 3,813 7,054 — — 21,534 
Effect of foreign currency exchange rate change and other(15)— (7)— — — — (22)
Impairment(100)— (444)(699)(1,399)— — (2,642)
As of December 31, 2020(1)
2,555 4,738 2,808 3,114 5,655 — — 18,870 
January 2021 reorganization (2,555)(4,738)(2,808)(3,114)(5,655)12,173 6,697 — 
Reclassified as held for sale(2)
— — — — — (913)(1,946)(2,859)
Effect of foreign currency exchange rate change and other— — — — — (25)— (25)
As of December 31, 2021(1)
$— — — — — 11,235 4,751 15,986 
______________________________________________________________________
(1)Goodwill at December 31, 2021, December 31, 2020 and December 31, 2019 is net of accumulated impairment losses of $7.7 billion, $12.9 billion and $10.3 billion, respectively. The change in accumulated impairment losses at December 31, 2021 is a result of amounts reclassified as held for sale related to our planned divestitures.
(2)Includes $2.9 billion of goodwill, net of accumulated impairment loss reclassified as held for sale related to our pending divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.
Schedule of estimated amortization expense for intangible assets
We estimate that total amortization expense for finite-lived intangible assets for the years ending December 31, 2022 through 2026 will be as provided in the table below. As a result of reclassifying our Latin American and ILEC businesses as being held for sale on our December 31, 2021 consolidated balance sheet, the amounts presented below do not include future amortization expense for intangible assets of the businesses to be divested. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

 (Dollars in millions)
2022$1,034 
2023940 
2024849 
2025798 
2026721 
v3.22.0.1
Revenue Recognition (Tables)
12 Months Ended
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]  
Revenue from external customers by products and services The following tables provide total revenue by segment, sales channel and product category. They also provide the amount of revenue that is not subject to ASC 606, "Revenue from Contracts with Customers" ("ASC 606"), but is instead governed by other accounting standards:
Year Ended December 31, 2021
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$715 (280)435 
IP and Data Services1,708 — 1,708 
Fiber Infrastructure886 (129)757 
Voice and Other744 — 744 
Total IGAM Revenue4,053 (409)3,644 
Large Enterprise
Compute and Application Services698 (63)635 
IP and Data Services1,554 — 1,554 
Fiber Infrastructure521 (50)471 
Voice and Other949 — 949 
Total Large Enterprise Revenue3,722 (113)3,609 
Mid-Market Enterprise
Compute and Application Services139 (31)108 
IP and Data Services1,754 (5)1,749 
Fiber Infrastructure218 (8)210 
Voice and Other618 — 618 
Total Mid-Market Enterprise Revenue2,729 (44)2,685 
Wholesale
Compute and Application Services189 (159)30 
IP and Data Services1,196 — 1,196 
Fiber Infrastructure623 (118)505 
Voice and Other1,607 (252)1,355 
Total Wholesale Revenue3,615 (529)3,086 
Business Segment by Product Category
Compute and Application Services1,741 (533)1,208 
IP and Data Services6,212 (5)6,207 
Fiber Infrastructure2,248 (305)1,943 
Voice and Other3,918 (252)3,666 
Total Business Segment Revenue14,119 (1,095)13,024 
Mass Markets Segment by Product Category
Consumer Broadband2,875 (211)2,664 
SBG Broadband156 (16)140 
Voice and Other2,047 (80)1,967 
CAF II490 (490)— 
Total Mass Markets Revenue5,568 (797)4,771 
Total Revenue$19,687 (1,892)17,795 
Timing of revenue
Goods and services transferred at a point in time$138 
Services performed over time17,657 
Total revenue from contracts with customers$17,795 
Year Ended December 31, 2020
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$772 (265)507 
IP and Data Services1,731 — 1,731 
Fiber Infrastructure822 (110)712 
Voice and Other793 — 793 
Total IGAM Revenue4,118 (375)3,743 
Large Enterprise
Compute and Application Services663 (82)581 
IP and Data Services1,588 (2)1,586 
Fiber Infrastructure590 (46)544 
Voice and Other1,074 (2)1,072 
Total Large Enterprise Revenue3,915 (132)3,783 
Mid-Market Enterprise
Compute and Application Services137 (16)121 
IP and Data Services1,845 (6)1,839 
Fiber Infrastructure218 (9)209 
Voice and Other769 — 769 
Total Mid-Market Enterprise Revenue2,969 (31)2,938 
Wholesale
Compute and Application Services183 (161)22 
IP and Data Services1,249 — 1,249 
Fiber Infrastructure618 (121)497 
Voice and Other1,765 (258)1,507 
Total Wholesale Revenue3,815 (540)3,275 
Business Segment by Product Category
Compute and Application Services1,755 (524)1,231 
IP and Data Services6,413 (8)6,405 
Fiber Infrastructure2,248 (286)1,962 
Voice and Other4,401 (260)4,141 
Total Business Segment Revenue14,817 (1,078)13,739 
Mass Markets Segment by Product Category
Consumer Broadband2,909 (221)2,688 
SBG Broadband153 (15)138 
Voice and Other2,341 (109)2,232 
CAF II492 (492)— 
Total Mass Markets Revenue5,895 (837)5,058 
Total Revenue$20,712 (1,915)18,797 
Timing of revenue
Goods and services transferred at a point in time$250 
Services performed over time18,547 
Total revenue from contracts with customers$18,797 
Year Ended December 31, 2019
Total Revenue
Adjustments for Non-ASC 606 Revenue (1)
Total Revenue from Contracts with Customers
 (Dollars in millions)
Business Segment by Sales Channel and Product Category
International and Global Accounts ("IGAM")
Compute and Application Services$790 (265)525 
IP and Data Services1,764 — 1,764 
Fiber Infrastructure785 (99)686 
Voice and Other833 — 833 
Total IGAM Revenue4,172 (364)3,808 
Large Enterprise
Compute and Application Services610 (89)521 
IP and Data Services1,589 — 1,589 
Fiber Infrastructure524 (44)480 
Voice and Other1,113 (1)1,112 
Total Large Enterprise Revenue3,836 (134)3,702 
Mid-Market Enterprise
Compute and Application Services147 (11)136 
IP and Data Services1,894 — 1,894 
Fiber Infrastructure219 (20)199 
Voice and Other892 (1)891 
Total Mid-Market Enterprise Revenue3,152 (32)3,120 
Wholesale
Compute and Application Services188 (168)20 
IP and Data Services1,319 — 1,319 
Fiber Infrastructure629 (122)507 
Voice and Other1,943 (279)1,664 
Total Wholesale Revenue4,079 (569)3,510 
Business Segment by Product Category
Compute and Application Services1,735 (533)1,202 
IP and Data Services6,566 — 6,566 
Fiber Infrastructure2,157 (285)1,872 
Voice and Other4,781 (281)4,500 
Total Business Segment Revenue15,239 (1,099)14,140 
Mass Markets Segment by Product Category
Consumer Broadband2,876 (215)2,661 
SBG Broadband163 (4)159 
Voice and Other2,688 (143)2,545 
CAF II492 (492)— 
Total Mass Markets Revenue6,219 (854)5,365 
Total Revenue$21,458 (1,953)19,505 
Timing of revenue
Goods and services transferred at a point in time$221 
Services performed over time19,284 
Total revenue from contracts with customers$19,505 
______________________________________________________________________
(1)Includes regulatory revenue and lease revenue not within the scope of ASC 606.
Contract with customer, asset and liability
The following table provides balances of customer receivables, contract assets and contract liabilities, net of amounts reclassified as held for sale, as of December 31, 2021 and December 31, 2020:
December 31, 2021December 31, 2020
 (Dollars in millions)
Customer receivables(1)(2)
$1,493 1,889 
Contract assets(3)
73 108 
Contract liabilities(4)
680 950 
______________________________________________________________________
(1)Reflects gross customer receivables of $1.6 billion and $2.1 billion, net of allowance for credit losses of $102 million and $174 million, at December 31, 2021 and December 31, 2020, respectively.
(2)As of December 31, 2021, amount excludes customer receivables, net reclassified as held for sale of $288 million.
(3)As of December 31, 2021, amount excludes contract assets reclassified as held for sale of $9 million.
(4)As of December 31, 2021, amount excludes contract liabilities reclassified as held for sale of $161 million.
Capitalized contract cost
The following tables provide changes in our contract acquisition costs and fulfillment costs:
December 31, 2021
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$289 216 
Costs incurred176 151 
Amortization(209)(149)
Reclassified as held for sale(1)
(34)(32)
End of period balance$222 186 

December 31, 2020
Acquisition CostsFulfillment Costs
 (Dollars in millions)
Beginning of period balance$326 221 
Costs incurred181 141 
Amortization(218)(146)
End of period balance$289 216 
______________________________________________________________________
(1)Represents the amounts reclassified as held for sale as of December 31, 2021 related to our planned divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.
v3.22.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2021
Leases [Abstract]  
Lease, cost
Lease expense consisted of the following:
Years Ended December 31,
20212020
(Dollars in millions)
Operating and short-term lease cost$535 729 
Finance lease cost:
Amortization of right-of-use assets37 36 
Interest on lease liability16 12 
Total finance lease cost53 48 
Total lease cost$588 777 
Supplemental consolidated cash flow statement information related to leases is included below:
Years Ended December 31,
20212020
(Dollars in millions)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases$525 566 
Operating cash flows for finance leases15 14 
Financing cash flows for finance leases52 40 
Supplemental lease cash flow disclosures:
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities$165 375 
Right-of-use assets obtained in exchange for new finance lease liabilities94 124 
Assets and liabilities
Supplemental consolidated balance sheet information and other information related to leases is included below:
As of December 31,
Leases (Dollars in millions)Classification on the Balance Sheet20212020
Assets
Operating lease assetsOther, net$1,451 1,699 
Finance lease assetsProperty, plant and equipment, net of accumulated depreciation314 329 
Total leased assets$1,765 2,028 
Liabilities
Current
OperatingCurrent operating lease liabilities$385 379 
FinanceCurrent maturities of long-term debt19 26 
Noncurrent
OperatingOther1,171 1,405 
FinanceLong-term debt251 267 
Total lease liabilities$1,826 2,077 
Weighted-average remaining lease term (years)
Operating leases6.86.7
Finance leases13.112.1
Weighted-average discount rate
Operating leases5.54 %6.01 %
Finance leases4.89 %4.94 %
Operating lease liabilities
As of December 31, 2021, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2022$457 33 
2023355 28 
2024253 28 
2025198 28 
2026149 28 
Thereafter490 223 
Total lease payments1,902 368 
Less: interest(346)(98)
Total1,556 270 
Less: current portion(385)(19)
Long-term portion$1,171 251 
Finance lease liabilities
As of December 31, 2021, maturities of lease liabilities were as follows:
 Operating LeasesFinance Leases
 (Dollars in millions)
2022$457 33 
2023355 28 
2024253 28 
2025198 28 
2026149 28 
Thereafter490 223 
Total lease payments1,902 368 
Less: interest(346)(98)
Total1,556 270 
Less: current portion(385)(19)
Long-term portion$1,171 251 
v3.22.0.1
Credit Losses on Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
Credit Loss [Abstract]  
Financing receivable, allowance for credit loss
The following tables present the activity of our allowance for credit losses by accounts receivable portfolio for the years ended December 31, 2021 and December 31, 2020:

BusinessMass MarketsTotal
(Dollars in millions)
Beginning balance at January 1, 2021(1)
$109 82 191 
Provision for expected losses50 55 105 
Write-offs charged against the allowance(76)(101)(177)
Recoveries collected13 19 
Reclassified as held for sale(2)
(8)(16)(24)
Ending balance at December 31, 2021
$88 26 114 

BusinessConsumerTotal
(Dollars in millions)
Beginning balance at January 1, 2020(3)
$58 37 95 
Provision for expected losses115 74 189 
Write-offs charged against the allowance(74)(59)(133)
Recoveries collected24 18 42 
Foreign currency exchange rate changes adjustment(2)— (2)
Balance at December 31, 2020$121 70 191 
______________________________________________________________________
(1)As described in Note 17—Segment Information, we completed an internal reorganization in January 2021. As a result of this change, allowance for credit losses previously included in the Consumer and Business portfolio of $70 million related to consumer and $12 million related to our small business group, respectively, were reclassified to the Mass Markets allowance for credit losses on January 1, 2021.
(2)Represents the amounts reclassified as held for sale related to our pending divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.
(3)The beginning balance for the year ended December 31, 2020 includes the cumulative effect of $11 million for the adoption of the new credit loss standard.
v3.22.0.1
Long-Term Debt and Credit Facilities (Tables)
12 Months Ended
Dec. 31, 2021
Debt Disclosure [Abstract]  
Schedule of long-term debt including unamortized discounts and premiums
The following chart reflects the consolidated long-term debt of Lumen Technologies, Inc. and its subsidiaries as of the dates indicated below, including unamortized discounts and premiums and unamortized debt issuance costs, but excluding intercompany debt:
   As of December 31,
 
Interest Rates(1)
Maturities(1)
20212020
   (Dollars in millions)
Senior Secured Debt: (2)
Lumen Technologies, Inc.    
Revolving Credit Facility
LIBOR + 2.00%
2025$200 150 
Term Loan A(3)
LIBOR + 2.00%
20251,050 1,108 
Term Loan A-1(3)
LIBOR + 2.00%
2025300 316 
Term Loan B(4)
LIBOR + 2.25%
20274,900 4,950 
Senior notes
4.000%
20271,250 1,250 
Subsidiaries:
Level 3 Financing, Inc.
Tranche B 2027 Term Loan(5)
LIBOR + 1.75%
20273,111 3,111 
Senior notes
3.400% - 3.875%
2027 - 2029
1,500 1,500 
Embarq Corporation subsidiaries
First mortgage bonds
7.125% - 8.375%
2023 - 2025
138 138 
Senior Notes and Other Debt:
Lumen Technologies, Inc.
Senior notes
4.500% - 7.650%
2022 - 2042
8,414 8,645 
Subsidiaries:   
Level 3 Financing, Inc.
Senior notes
3.625% - 5.375%
2025 - 2029
5,515 5,515 
Qwest Corporation
Senior notes
6.500% - 7.750%
2025 - 2057
1,986 3,170 
Term loan(6)
LIBOR + 2.00%
2027215 215 
Qwest Capital Funding, Inc.
Senior notes
6.875% - 7.750%
2028 - 2031
255 352 
Embarq Corporation and subsidiary
Senior notes(7)
7.995%2036— 1,437 
Finance lease and other obligationsVariousVarious347 295 
Unamortized premiums (discounts), net  21 (78)
Unamortized debt issuance costs(220)(237)
Total long-term debt  28,982 31,837 
Less current maturities  (1,554)(2,427)
Long-term debt, excluding current maturities  $27,428 29,410 
_______________________________________________________________________________
(1)As of December 31, 2021.
(2)See the remainder of this Note for a description of certain parent or subsidiary guarantees and liens securing this debt.
(3)Term Loans A and A-1 had interest rates of 2.104% and 2.147% as of December 31, 2021 and December 31, 2020, respectively.
(4)Term Loan B had interest rates of 2.354% and 2.397% as of December 31, 2021 and December 31, 2020, respectively.
(5)The Level 3 Tranche B 2027 Term Loan had interest rates of 1.854% and 1.897% as of December 31, 2021 and December 31, 2020, respectively.
(6)The Qwest Corporation Term Loan had interest rates of 2.110% and 2.150% as of December 31, 2021 and December 31, 2020, respectively.
(7)As of December 31, 2021, the Embarq Senior notes have been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.
Schedule of maturities of long-term debt
Set forth below is the aggregate principal amount of our long-term debt as of December 31, 2021 (excluding unamortized premiums (discounts), net, unamortized debt issuance costs and intercompany debt) maturing during the following years. As a result of reclassifying our Latin American and ILEC businesses as being held for sale on our December 31, 2021 consolidated balance sheet, the amounts presented below do not include maturities of the debt obligations of those businesses. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.
 
(Dollars in millions)(1)
2022$1,554 
2023977 
20241,158 
20253,127 
20262,062 
2027 and thereafter20,303 
Total long-term debt$29,181 
______________________________________________________________________ 
(1)As of December 31, 2021, these amounts exclude $1.5 billion of debt and finance lease obligations that have been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.
Schedule of amount of gross interest expense, net of capitalized interest
Interest expense includes interest on total long-term debt. The following table presents the amount of gross interest expense, net of capitalized interest:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Interest expense:   
Gross interest expense$1,575 1,743 2,093 
Capitalized interest(53)(75)(72)
Total interest expense$1,522 1,668 2,021 
v3.22.0.1
Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2021
Receivables [Abstract]  
Schedule of components of accounts receivable
The following table presents details of our accounts receivable balances:
 As of December 31,
 20212020
 (Dollars in millions)
Trade and purchased receivables$1,281 1,717 
Earned and unbilled receivables315 345 
Other62 91 
Total accounts receivable1,658 2,153 
Less: allowance for credit losses(114)(191)
Accounts receivable, less allowance$1,544 1,962 
Schedule of details of allowance for doubtful accounts
The following table presents details of our allowance for credit losses accounts:
Beginning
Balance
AdditionsDeductionsEnding
Balance
 (Dollars in millions)
2021$191 105 (182)114 
2020(1)
106 189 (104)191 
2019142 145 (181)106 
_______________________________________________________________________________
(1)On January 1, 2020, we adopted ASU 2016-13 "Measurement of Credit Losses on Financial Instruments" and recognized a cumulative adjustment to our accumulated deficit as of the date of adoption of $9 million, net of $2 million tax effect. This adjustment is included within "Deductions." See Note 6—Credit Losses on Financial Instruments for more information.
v3.22.0.1
Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Schedule of net property, plant and equipment
Net property, plant and equipment is composed of the following:
 Depreciable
Lives
As of December 31,
 20212020
  (Dollars in millions)
LandN/A$751 848 
Fiber, conduit and other outside plant(1)
15-45 years
15,366 26,522 
Central office and other network electronics(2)
3-10 years
15,394 20,692 
Support assets(3)
3-30 years
7,181 8,261 
Construction in progress(4)
N/A1,474 1,611 
Gross property, plant and equipment 40,166 57,934 
Accumulated depreciation (19,271)(31,596)
Net property, plant and equipment $20,895 26,338 
_______________________________________________________________________________
(1)Fiber, conduit and other outside plant consists of fiber and metallic cable, conduit, poles and other supporting structures. Fiber, conduit and other outside plant decreased as of December 31, 2021 compared to December 31, 2020 due to the retirement of a portion of our copper-based infrastructure being replaced with our Quantum Fiber infrastructure.
(2)Central office and other network electronics consists of circuit and packet switches, routers, transmission electronics and electronics providing service to customers.
(3)Support assets consist of buildings, cable landing stations, data centers, computers and other administrative and support equipment.
(4)Construction in progress includes inventory held for construction and property of the aforementioned categories that has not been placed in service as it is still under construction.
Schedule of changes to asset retirement obligations
The following table provides asset retirement obligation activity:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Balance at beginning of year$199 197 190 
Accretion expense10 10 11 
Liabilities settled(13)(8)(14)
Change in estimate(2)— 10 
Reclassified as held for sale(1)
(12)— — 
Balance at end of year$182 199 197 
_______________________________________________________________________________
(1)Represents the amounts reclassified as held for sale related to our planned divestitures. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses.
v3.22.0.1
Severance (Tables)
12 Months Ended
Dec. 31, 2021
Restructuring and Related Activities [Abstract]  
Schedule of changes in accrued liabilities for severance expenses and leased real estate
Changes in our accrued liabilities for severance expenses were as follows:
Severance
 (Dollars in millions)
Balance at December 31, 2019$89 
Accrued to expense151 
Payments, net(137)
Balance at December 31, 2020103 
Accrued to expense
Payments, net(70)
Balance at December 31, 2021$36 
v3.22.0.1
Employee Benefits (Tables)
12 Months Ended
Dec. 31, 2021
Retirement Benefits [Abstract]  
Schedule of estimated future benefit payments
The Combined Pension Plan payments, post-retirement health care benefit payments and premiums, and life insurance premium payments are either distributed from plan assets or paid by us. The estimated benefit payments provided below are based on actuarial assumptions using the demographics of the employee and retiree populations and have been reduced by estimated participant contributions.
Combined Pension PlanPost-Retirement
Benefit Plans
Medicare Part D
Subsidy Receipts
 (Dollars in millions)
Estimated future benefit payments:   
2022$850 220 (3)
2023729 216 (3)
2024706 211 (3)
2025686 206 (3)
2026664 200 (3)
2027 - 20312,978 899 (10)
Schedule of actuarial assumptions used to compute net periodic benefit expense
The actuarial assumptions used to compute the net periodic benefit expense for our Combined Pension Plan and post-retirement benefit plans are based upon information available as of the beginning of the year, as presented in the following table.
 Combined Pension PlanPost-Retirement Benefit Plans
 202120202019202120202019
Actuarial assumptions at beginning of year:      
Discount rate
1.70% - 2.88%
2.79% - 3.55%
3.94% - 4.44%
1.58% - 2.60%
1.69% - 3.35%
3.84% - 4.38%
Rate of compensation increase3.25 %3.25 %3.25 %N/AN/AN/A
Expected long-term rate of return on plan assets(1)
5.50 %6.50 %6.50 %4.00 %4.00 %4.00 %
Initial health care cost trend rateN/AN/AN/A
6.25% / 5.00%
6.50% / 5.00%
6.50% / 5.00%
Ultimate health care cost trend rateN/AN/AN/A4.50 %4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/AN/A202520252025
_______________________________________________________________________________
N/A - Not applicable
(1)Rates are presented net of projected fees and administrative costs.
Schedule of components of net periodic pension income and post-retirement benefit expense
Net periodic benefit expense (income) for our Combined Pension Plan includes the following components:
 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Service cost$56 59 56 
Interest cost201 324 436 
Expected return on plan assets(535)(593)(618)
Settlement charges383 — — 
Special termination benefits charge13 
Recognition of prior service credit(9)(9)(8)
Recognition of actuarial loss184 202 223 
Net periodic pension expense (income)$286 (4)95 

Net periodic benefit expense for our post-retirement benefit plans includes the following components:
 Post-Retirement Plans
Years Ended December 31,
 202120202019
 (Dollars in millions)
Service cost$14 14 15 
Interest cost47 69 110 
Expected return on plan assets— (1)(1)
Recognition of prior service cost15 16 16 
Recognition of actuarial loss— — 
Curtailment loss— — 
Net periodic post-retirement benefit expense$80 106 140 
Schedule of actuarial assumptions used to compute the funded status for the plans
The actuarial assumptions used to compute the funded status for the plans are based upon information available as of December 31, 2021 and 2020 and are as follows:
 Combined Pension PlanPost-Retirement Benefit Plans
 December 31,December 31,
 2021202020212020
Actuarial assumptions at end of year:    
Discount rate2.85 %2.43 %2.84 %2.40 %
Rate of compensation increase3.25 %3.25 %N/AN/A
Initial health care cost trend rateN/AN/A
5.75% / 5.00%
6.25% / 5.00%
Ultimate health care cost trend rateN/AN/A4.50 %4.50 %
Year ultimate trend rate is reachedN/AN/A20252025
_______________________________________________________________________________
N/A - Not applicable
Schedule of change in benefit obligation
The following tables summarize the change in the benefit obligations for the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$12,202 12,217 11,594 
Service cost56 59 56 
Interest cost201 324 436 
Plan amendments(13)(3)(9)
Special termination benefits charge13 
Actuarial (gain) loss(337)749 1,249 
Benefits paid from plan assets(766)(1,157)(1,115)
Settlement payments and annuity purchase(1,671)— — 
Benefit obligation at end of year$9,678 12,202 12,217 
 Post-Retirement Benefit Plans
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in benefit obligation   
Benefit obligation at beginning of year$3,048 3,037 2,977 
Service cost14 14 15 
Interest cost47 69 110 
Participant contributions41 46 52 
Direct subsidy receipts
Actuarial (gain) loss(125)134 180 
Curtailment loss— — 
Benefits paid by company(247)(255)(300)
Benefits paid from plan assets— (7)(4)
Benefit obligation at end of year$2,781 3,048 3,037 
Schedule of change in plan assets
The following table summarizes the change in the fair value of plan assets for the Combined Pension Plan:

 Combined Pension Plan
Years Ended December 31,
 202120202019
 (Dollars in millions)
Change in plan assets   
Fair value of plan assets at beginning of year$10,546 10,493 10,033 
Return on plan assets422 1,210 1,575 
Benefits paid from plan assets(766)(1,157)(1,115)
Settlement payments and annuity purchase(1,671)— — 
Fair value of plan assets at end of year$8,531 10,546 10,493 
Schedule of fair value of the plans' assets by asset category
The table below present the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2021. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivables, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets at December 31, 2021
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$862 3,744 — 4,606 
High yield bonds (b)— 172 178 
Emerging market bonds (c)64 169 — 233 
U.S. stocks (d)330 338 
Non-U.S. stocks (e)256 — — 256 
Multi-asset strategies (l)41 — — 41 
Derivatives (m)— — 
Cash equivalents and short-term investments (o)379 — 381 
Total investments, excluding investments valued at NAV$1,555 4,468 11 6,034 
Liabilities
Repurchase agreements (n)$— (193)— (193)
Investments valued at NAV2,690 
Total pension plan assets   $8,531 
The table below present the fair value of plan assets by category and the input levels used to determine those fair values at December 31, 2020. It is important to note that the asset allocations do not include market exposures that are gained with derivatives. Investments include dividend and interest receivable, pending trades and accrued expenses.
 Fair Value of Combined Pension Plan Assets at December 31, 2020
 Level 1Level 2Level 3Total
 (Dollars in millions)
Assets
Investment grade bonds (a)$726 4,066 — 4,792 
High yield bonds (b)— 262 268 
Emerging market bonds (c)218 172 — 390 
U.S. stocks (d)653 — 655 
Non-U.S. stocks (e)593 — 594 
Multi-asset strategies (l)199 — — 199 
Cash equivalents and short-term investments (o)— 281 — 281 
Total investments, excluding investments valued at NAV$2,389 4,782 7,179 
Liabilities
Derivatives (m)$— (1)— (1)
Investments valued at NAV3,368 
Total pension plan assets   $10,546 

The table below presents the fair value of plan assets valued at NAV by category for our Combined Pension Plan at December 31, 2021 and 2020.
 Fair Value of Plan Assets Valued at NAV
 Combined Pension Plan at
December 31,
20212020
 (Dollars in millions)
Investment grade bonds (a)$127 352 
High yield bonds (b)70 25 
U.S. stocks (d)71 192 
Non-U.S. stocks (e)398 308 
Emerging market stocks (f)11 81 
Private equity (g)348 283 
Private debt (h)495 505 
Market neutral hedge funds (i)141 222 
Directional hedge funds (j)241 254 
Real estate (k)420 543 
Multi-asset strategies (l)38 375 
Cash equivalents and short-term investments (o)330 228 
Total investments valued at NAV$2,690 3,368 
Schedule of gross notional exposure of the derivative instruments directly held by the plans
 Gross Notional Exposure
 Combined Pension Plan
Years Ended December 31,
 20212020
 (Dollars in millions)
Derivative instruments:  
Exchange-traded U.S. equity futures$108 84 
Exchange-traded Treasury and other interest rate futures1,688 1,033 
Exchange-traded Foreign currency futures11 12 
Exchange-traded EURO futures
Interest rate swaps127 124 
Credit default swaps132 43 
Index swaps1,036 1,297 
Foreign exchange forwards93 769 
Options654 222 
Summary of changes in fair value of defined benefit plans' Level 3 assets
The table below presents a rollforward of the Combined Pension Plan assets valued using Level 3 inputs:
 Combined Pension Plan Assets Valued Using Level 3 Inputs
 High
Yield
Bonds
U.S. StocksPrivate DebtTotal
 (Dollars in millions)
Balance at December 31, 2019$16 22 
Acquisitions (dispositions)— (17)(16)
Actual return on plan assets— 
Balance at December 31, 2020— 
Actual return on plan assets— — 
Balance at December 31, 2021$— 11 
Schedule of the unfunded status of the benefit plans
The following table presents the unfunded status of the Combined Pension Plan and post-retirement benefit plans:
 Combined Pension PlanPost-Retirement
Benefit Plans
 Years Ended December 31,Years Ended December 31,
 2021202020212020
 (Dollars in millions)
Benefit obligation$(9,678)(12,202)(2,781)(3,048)
Fair value of plan assets8,531 10,546 
Unfunded status(1,147)(1,656)(2,776)(3,043)
Current portion of unfunded status— — (212)(228)
Non-current portion of unfunded status$(1,147)(1,656)(2,564)(2,815)
Schedule of items not recognized as a component of net periodic benefits expense
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2020, items recognized as a component of net periodic benefits expense in 2021, additional items deferred during 2021 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2021. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2020Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2021
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(2,993)186 243 429 (2,564)
Settlement charge— 383 — 383 383 
Prior service benefit (cost)41 (9)13 45 
Deferred income tax benefit (expense)755 (137)(59)(196)559 
Total pension plans(2,197)423 197 620 (1,577)
Post-retirement benefit plans:     
Net actuarial (loss) gain(346)125 129 (217)
Prior service (cost) benefit(20)15 — 15 (5)
Curtailment loss— — — 
Deferred income tax benefit (expense)90 (5)(31)(36)54 
Total post-retirement benefit plans(272)14 94 108 (164)
Total accumulated other comprehensive (loss) income$(2,469)437 291 728 (1,741)
The following table presents cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2019, items recognized as a component of net periodic benefits expense in 2020, additional items deferred during 2020 and cumulative items not recognized as a component of net periodic benefits expense as of December 31, 2019. The items not recognized as a component of net periodic benefits expense have been recorded on our consolidated balance sheets in accumulated other comprehensive loss:

 As of and for the Years Ended December 31,
 2019Recognition
of Net
Periodic
Benefits
Expense
DeferralsNet
Change in
AOCL
2020
 (Dollars in millions)
Accumulated other comprehensive (loss) income     
Pension plans:     
Net actuarial (loss) gain$(3,046)203 (150)53 (2,993)
Prior service benefit (cost)47 (9)(6)41 
Deferred income tax benefit (expense)770 (47)32 (15)755 
Total pension plans(2,229)147 (115)32 (2,197)
Post-retirement benefit plans:     
Net actuarial (loss) gain(175)— (171)(171)(346)
Prior service (cost) benefit(71)16 35 51 (20)
Curtailment loss— — 
Deferred income tax benefit (expense)62 (5)33 28 90 
Total post-retirement benefit plans(184)15 (103)(88)(272)
Total accumulated other comprehensive (loss) income$(2,413)162 (218)(56)(2,469)
v3.22.0.1
Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Restricted stock and restricted stock unit awards activity
The following table summarizes activity involving restricted stock and restricted stock unit awards for the year ended December 31, 2021:
Number of
Shares
Weighted-
Average
Grant Date
Fair Value
 (in thousands) 
Non-vested at December 31, 2020
21,508 $12.37 
Granted13,908 13.95 
Vested(11,161)13.56 
Forfeited(1,828)12.58 
Non-vested at December 31, 2021
22,427 12.74 
v3.22.0.1
Earnings (Loss) Per Common Share (Tables)
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Schedule of basic and diluted earnings (loss) per common share
Basic and diluted earnings (loss) per common share for the years ended December 31, 2021, 2020 and 2019 were calculated as follows:

 Years Ended December 31,
 202120202019
 (Dollars in millions, except per share amounts, shares in thousands)
Income (Loss) (Numerator)   
Net Income (Loss)$2,033 (1,232)(5,269)
Net income (loss) applicable to common stock for computing basic earnings (loss) per common share2,033 (1,232)(5,269)
Net income (loss) as adjusted for purposes of computing diluted earnings (loss) per common share$2,033 (1,232)(5,269)
Shares (Denominator):  
Weighted average number of shares:   
Outstanding during period1,077,393 1,096,284 1,088,730 
Non-vested restricted stock(17,852)(17,154)(17,289)
Weighted average shares outstanding for computing basic earnings (loss) per common share1,059,541 1,079,130 1,071,441 
Incremental common shares attributable to dilutive securities:   
Shares issuable under convertible securities10 — — 
Shares issuable under incentive compensation plans7,227 — — 
Number of shares as adjusted for purposes of computing diluted earnings (loss) per common share1,066,778 1,079,130 1,071,441 
Basic earnings (loss) per common share$1.92 (1.14)(4.92)
Diluted earnings (loss) per common share(1)
$1.91 (1.14)(4.92)
______________________________________________________________________________
(1)For the years ended December 31, 2020 and December 31, 2019, we excluded from the calculation of diluted loss per share 5.3 million shares and 3.0 million shares, respectively, potentially issuable under incentive compensation plans or convertible securities, as their effect, if included, would have been anti-dilutive.
v3.22.0.1
Fair Value of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
Fair Value Disclosures [Abstract]  
Schedule of the three input levels in the hierarchy of fair value measurements
The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:
Input LevelDescription of Input
Level 1Observable inputs such as quoted market prices in active markets.
Level 2Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3Unobservable inputs in which little or no market data exists.
Schedule of carrying amounts and estimated fair values of long-term debt, excluding capital lease obligations, and input levels to determine fair values
The following table presents the carrying amounts and estimated fair values of our financial liabilities as of December 31, 2021:
  As of December 31, 2021As of December 31, 2020
 Input
Level
Carrying
Amount
Fair ValueCarrying
Amount
Fair Value
  (Dollars in millions)
Long-term debt, excluding finance lease and other obligations(1)
2$28,635 29,221 31,542 33,217 
Interest rate swap contracts (see Note 15)
225 25 107 107 
______________________________________________________________________
(1)As of December 31, 2021, these amounts exclude $1.4 billion of carrying amount and $1.6 billion of fair value of debt that has been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.
Investments held at net asset value
As of December 31, 2021As of December 31, 2020
NAVCost
(Dollars in millions)
Investment in limited partnership(1)
$299 161 
______________________________________________________________________
(1)For the year ended December 31, 2021, we recognized $138 million of gain on investment, reflected in other expense, net in our consolidated statement of operations for the year ended December 31, 2021.
v3.22.0.1
Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of derivative instruments in statement of financial position, fair value
The table below presents the fair value of our derivative financial instruments as well as their classification on the consolidated balance sheets at December 31, 2021 and December 31, 2020 as follows (in millions):
December 31, 2021December 31, 2020
Derivatives designated asBalance Sheet LocationFair Value
Cash flow hedging contractsOther current and noncurrent liabilities$25 107 
Derivative instruments, gain (loss)
The amount of unrealized losses recognized in AOCI consists of the following (in millions):
Derivatives designated as hedging instruments202120202019
Cash flow hedging contracts
Years Ended December 31,$115 53 
Schedule of reclassifications out of accumulated other comprehensive income (loss) by component
The amount of realized losses reclassified from AOCI to the statement of operations consists of the following (in millions):
Derivatives designated as hedging instruments202120202019
Cash flow hedging contracts
Years Ended December 31,$83 62 
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2021:
Year Ended December 31, 2021Decrease (Increase)
in Net Income
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swaps$83 Interest expense
Income tax benefit(20)Income tax expense
Net of tax$63 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$190Other expense, net
Settlement charge383Other expense, net
Prior service cost6Other expense, net
Total before tax579  
Income tax benefit(142)Income tax expense
Net of tax$437  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2020:
Year Ended December 31, 2020(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swap$62 Interest expense
Income tax benefit(16)Income tax expense
Net of tax$46 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$203 Other expense, net
Prior service costOther expense, net
Curtailment lossOther expense, net
Total before tax214  
Income tax benefit(52)Income tax expense
Net of tax$162  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
v3.22.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2021
Income Tax Disclosure [Abstract]  
Schedule of components of provision for income tax
The components of the income tax expense are as follows:

 Years Ended December 31,
 202120202019
 (Dollars in millions)
Income tax expense:   
Federal   
Current$
Deferred514 338 376 
State   
Current42 50 15 
Deferred72 55 81 
Foreign   
Current23 29 35 
Deferred12 (27)(11)
Total income tax expense$668 450 503 
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Income tax expense was allocated as follows:   
Income tax expense in the consolidated statements of operations:   
Attributable to income$668 450 503 
Stockholders' equity:   
Tax effect of the change in accumulated other comprehensive loss$222 17 (62)
Schedule of reconciliation of the statutory federal income tax rate to effective income tax rate
The following is a reconciliation from the statutory federal income tax rate to our effective income tax rate:
 Years Ended December 31,
 202120202019
 (Percentage of pre-tax income (loss))
Statutory federal income tax rate21.0 %21.0 %21.0 %
State income taxes, net of federal income tax benefit3.3 %(10.8)%(1.6)%
Goodwill impairment— %(71.0)%(28.6)%
Change in liability for unrecognized tax position0.1 %(0.6)%(0.2)%
Legislative changes to GILTI— %1.8 %— %
Nondeductible executive stock compensation0.2 %(1.6)%(0.1)%
Change in valuation allowance— %2.6 %— %
Net foreign income taxes0.6 %(0.6)%(0.5)%
Research and development credits(0.5)%1.6 %0.1 %
Other, net— %0.1 %(0.7)%
Effective income tax rate24.7 %(57.5)%(10.6)%
Schedule of components of deferred tax assets and deferred tax liabilities
The tax effects of temporary differences that gave rise to significant portions of the deferred tax assets and deferred tax liabilities were as follows:
 As of December 31,
 20212020
 (Dollars in millions)
Deferred tax assets  
Post-retirement and pension benefit costs$978 1,164 
Net operating loss carryforwards2,463 3,138 
Other employee benefits96 119 
Other554 604 
Gross deferred tax assets4,091 5,025 
Less valuation allowance(1,566)(1,538)
Net deferred tax assets2,525 3,487 
Deferred tax liabilities  
Property, plant and equipment, primarily due to depreciation differences(3,941)(3,882)
Goodwill and other intangible assets(2,473)(2,755)
Gross deferred tax liabilities(6,414)(6,637)
Net deferred tax liability$(3,889)(3,150)
Summary of NOLs The U.S. federal net operating loss carryforwards expire as follows:
ExpiringAmount
December 31,(Dollars in millions)
2026$741 
2027375 
2028637 
2029645 
2030668 
2031733 
2032348 
2033238 
20372,976 
NOLs per return7,361 
Uncertain tax positions(4,457)
Financial NOLs$2,904 
Summary of the reconciliation of the change in gross unrecognized tax benefits
A reconciliation of the change in our gross unrecognized tax benefits (excluding both interest and any related federal benefit) from January 1 to December 31 for 2021 and 2020 is as follows:
20212020
 (Dollars in millions)
Unrecognized tax benefits at beginning of year$1,474 1,538 
Increase in tax positions of the current year netted against deferred tax assets18 
Increase in tax positions of prior periods netted against deferred tax assets— 
Decrease in tax positions of the current year netted against deferred tax assets(101)(86)
Decrease in tax positions of prior periods netted against deferred tax assets(1)(5)
Increase in tax positions taken in the current year
Increase in tax positions taken in the prior year
Decrease due to payments/settlements(3)(1)
Decrease from the lapse of statute of limitations(1)— 
Unrecognized tax benefits at end of year$1,375 1,474 
v3.22.0.1
Segment Information (Tables)
12 Months Ended
Dec. 31, 2021
Segment Reporting [Abstract]  
Schedule of segment information
The following tables summarize our segment results for 2021, 2020 and 2019 based on the segment categorization we were operating under at December 31, 2021.
Year Ended December 31, 2021
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$14,119 5,568 19,687 — 19,687 
Expenses:
Cost of services and products3,484 152 3,636 4,852 8,488 
Selling, general and administrative1,189 530 1,719 1,176 2,895 
Less: stock-based compensation— — — (120)(120)
Total expense4,673 682 5,355 5,908 11,263 
Total adjusted EBITDA$9,446 4,886 14,332 (5,908)8,424 

Year Ended December 31, 2020
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$14,817 5,895 20,712 — 20,712 
Expenses:
Cost of services and products3,649 203 3,852 5,082 8,934 
Selling, general and administrative1,269 574 1,843 1,621 3,464 
Less: stock-based compensation— — — (175)(175)
Total expense4,918 777 5,695 6,528 12,223 
Total adjusted EBITDA$9,899 5,118 15,017 (6,528)8,489 
Year Ended December 31, 2019
BusinessMass MarketsTotal SegmentsOperations and OtherTotal
(Dollars in millions)
Revenue:$15,239 6,219 21,458 — 21,458 
Expenses:
Cost of services and products3,598 214 3,812 5,322 9,134 
Selling, general and administrative1,364 630 1,994 1,721 3,715 
Less: stock-based compensation— — — (162)(162)
Total expense4,962 844 5,806 6,881 12,687 
Total adjusted EBITDA$10,277 5,375 15,652 (6,881)8,771 
Schedule of reconciliation from segment income to consolidated net income
The following table reconciles total segment adjusted EBITDA to net income (loss) for the years ended December 31, 2021, 2020 and 2019:
 Years Ended December 31,
 202120202019
 (Dollars in millions)
Total segment adjusted EBITDA$14,332 15,017 15,652 
Depreciation and amortization(4,019)(4,710)(4,829)
Goodwill impairment— (2,642)(6,506)
Operations and other expenses(5,908)(6,528)(6,881)
Stock-based compensation(120)(175)(162)
Operating income (loss)4,285 962 (2,726)
Total other expense, net(1,584)(1,744)(2,040)
Income (loss) before income taxes2,701 (782)(4,766)
Income tax expense668 450 503 
Net income (loss)$2,033 (1,232)(5,269)
v3.22.0.1
Commitments, Contingencies and Other Items (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of future rental commitments for right-of-way agreements
At December 31, 2021, our future rental commitments and Right-of-Way agreements were as follows:
 Right-of-Way Agreements
 (Dollars in millions)
2022$246 
202399 
202484 
202574 
202671 
2027 and thereafter962 
Total future minimum payments$1,536 
v3.22.0.1
Other Financial Information (Tables)
12 Months Ended
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of components of other current assets
The following table presents details of other current assets in our consolidated balance sheets:
 As of December 31,
 20212020
 (Dollars in millions)
Prepaid expenses$295 290 
Income tax receivable22 
Materials, supplies and inventory96 105 
Contract assets45 66 
Contract acquisition costs142 173 
Contract fulfillment costs106 114 
Note receivable56 — 
Receivable for sale of land56 — 
Other11 53 
Total other current assets(1)
$829 808 
______________________________________________________________________
(1)As of December 31, 2021, other current assets exclude $126 million that have been reclassified as held for sale.
v3.22.0.1
Accumulated Other Comprehensive Loss (Tables)
12 Months Ended
Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Summary of the entity's accumulated other comprehensive income (loss) by component
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2021:
Pension PlansPost-Retirement
Benefit Plans
Foreign Currency
Translation
Adjustment
and Other
Interest Rate SwapTotal
 (Dollars in millions)
Balance at December 31, 2020$(2,197)(272)(265)(79)(2,813)
Other comprehensive income (loss) before reclassifications197 94 (135)(1)155 
Amounts reclassified from accumulated other comprehensive loss423 14 — 63 500 
Net current-period other comprehensive income (loss)620 108 (135)62 655 
Balance at December 31, 2021$(1,577)(164)(400)(17)(2,158)
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the year ended December 31, 2020:
Pension PlansPost-Retirement
Benefit Plans
Foreign Currency
Translation
Adjustment
and Other
Interest Rate SwapTotal
 (Dollars in millions)
Balance at December 31, 2019$(2,229)(184)(228)(39)(2,680)
Other comprehensive loss before reclassifications(115)(103)(37)(86)(341)
Amounts reclassified from accumulated other comprehensive loss147 15 — 46 208 
Net current-period other comprehensive income (loss)32 (88)(37)(40)(133)
Balance at December 31, 2020$(2,197)(272)(265)(79)(2,813)
Schedule of reclassifications out of accumulated other comprehensive income (loss) by component
The amount of realized losses reclassified from AOCI to the statement of operations consists of the following (in millions):
Derivatives designated as hedging instruments202120202019
Cash flow hedging contracts
Years Ended December 31,$83 62 
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2021:
Year Ended December 31, 2021Decrease (Increase)
in Net Income
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swaps$83 Interest expense
Income tax benefit(20)Income tax expense
Net of tax$63 
Amortization of pension & post-retirement plans (1)
  
Net actuarial loss$190Other expense, net
Settlement charge383Other expense, net
Prior service cost6Other expense, net
Total before tax579  
Income tax benefit(142)Income tax expense
Net of tax$437  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the year ended December 31, 2020:
Year Ended December 31, 2020(Decrease) Increase
in Net Loss
Affected Line Item in Consolidated Statement of
Operations
 (Dollars in millions) 
Interest rate swap$62 Interest expense
Income tax benefit(16)Income tax expense
Net of tax$46 
Amortization of pension & post-retirement plans (1)
Net actuarial loss$203 Other expense, net
Prior service costOther expense, net
Curtailment lossOther expense, net
Total before tax214  
Income tax benefit(52)Income tax expense
Net of tax$162  
________________________________________________________________________
(1)See Note 11—Employee Benefits for additional information on our net periodic benefit (expense) income related to our pension and post-retirement plans.
v3.22.0.1
Dividends (Tables)
12 Months Ended
Dec. 31, 2021
Dividends, Common Stock [Abstract]  
Schedule of dividends declared
Our Board of Directors declared the following dividends payable in 2021 and 2020:
Date DeclaredRecord DateDividend
Per Share
Total AmountPayment Date
   (in millions) 
November 18, 202111/29/2021$0.25 $251 12/10/2021
August 19, 20218/30/20210.25 264 9/10/2021
May 20, 20216/1/20210.25 272 6/11/2021
February 25, 20213/8/20210.25 276 3/19/2021
November 19, 202011/30/20200.25 274 12/11/2020
August 20, 20208/31/20200.25 274 9/11/2020
May 20, 20206/1/20200.25 274 6/12/2020
February 27, 20203/9/20200.25 274 3/20/2020
v3.22.0.1
Background and Summary of Significant Accounting Policies (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Feb. 25, 2019
Finite-Lived Intangible Assets [Line Items]          
Advertising expense $ 56 $ 56 $ 62    
Book overdraft balance $ 0 0      
Accounts receivable, period past due 30 days        
Unissued shares of CenturyLink common stock (in shares) 36,000,000        
Preferred stock dividends (in dollars per share) $ 25        
Number of shares issued per share of common stock         1
Stockholders' equity $ 11,840 11,162 13,470    
Income tax expense 668 450 503    
Retained Earnings (Accumulated Deficit)          
Finite-Lived Intangible Assets [Line Items]          
Stockholders' equity $ (5,998) $ (8,031) (6,814) $ (1,643)  
Income tax expense     2 37  
Retained Earnings (Accumulated Deficit) | Cumulative Effect, Period of Adoption, Adjustment          
Finite-Lived Intangible Assets [Line Items]          
Stockholders' equity     9 96  
Income tax expense     $ 2 $ (37)  
Capitalized software          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life 7 years        
Minimum          
Finite-Lived Intangible Assets [Line Items]          
Contract term 1 year        
Customer relationship period for revenue recognition 10 years        
Minimum | Customer relationships          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life 7 years        
Minimum | Other intangible assets          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life 4 years        
Maximum          
Finite-Lived Intangible Assets [Line Items]          
Contract term 5 years        
Customer relationship period for revenue recognition 20 years        
Maximum | Customer relationships          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life 14 years        
Maximum | Other intangible assets          
Finite-Lived Intangible Assets [Line Items]          
Estimated useful life 20 years        
Weighted Average | Mass Markets          
Finite-Lived Intangible Assets [Line Items]          
Length of customer life 30 months        
Weighted Average | Business          
Finite-Lived Intangible Assets [Line Items]          
Length of customer life 29 months        
v3.22.0.1
Planned Divestiture of the Latin American and ILEC Businesses - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 03, 2021
Jul. 25, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Depreciation and amortization     $ 4,019 $ 4,710 $ 4,829
Disposal Group, Held-for-sale, Not Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Assumed indebtedness from disposal of business     2,257    
Depreciation and amortization     272    
Estimated loss on disposal     0    
Disposal Group, Held-for-sale, Not Discontinued Operations | Latin American Business          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Assumed indebtedness from disposal of business     435    
Disposal Group, Held-for-sale, Not Discontinued Operations | Latin American Business | Level 3 Parent, LLC          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Cash consideration from disposal of business   $ 2,700      
Working capital, other purchase price adjustments and transaction expenses   $ 50      
Disposal Group, Held-for-sale, Not Discontinued Operations | ILEC Business          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Cash consideration from disposal of business $ 7,500        
Assumed indebtedness from disposal of business 1,400   $ 1,822    
Purchaser's transaction expenses $ 1,700        
v3.22.0.1
Planned Divestiture of the Latin American and ILEC Businesses - Pre-tax Net Income (Details) - Disposal Group, Held-for-sale, Not Discontinued Operations - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Pretax net income (loss) $ 1,065 $ 809 $ 685
Latin American Business      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Pretax net income (loss) 214 160 30
ILEC Business      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Pretax net income (loss) $ 851 $ 649 $ 655
v3.22.0.1
Planned Divestiture of the Latin American and ILEC Businesses - Components of Held for Sale Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Aug. 03, 2021
Dec. 31, 2020
Dec. 31, 2019
Assets held for sale        
Cash and cash equivalents $ 40   $ 0 $ 0
Other current assets 126      
Defined Benefit Plan, Funded Plan        
Liabilities held for sale        
Pension liability 2,500      
Defined Benefit Plan, Funded through Transfer of Plan Assets        
Liabilities held for sale        
Pension liability $ 2,200      
Funded percentage 88.00%      
Disposal Group, Held-for-sale, Not Discontinued Operations        
Assets held for sale        
Cash and cash equivalents $ 40      
Accounts receivable, less allowance of $3, $21 and $24 310      
Other current assets 126      
Property, plant and equipment, net accumulated depreciation of $434, $8,303 and $8,737 5,082      
Goodwill 2,854      
Other intangible assets, net 284      
Other non-current assets 113      
Total assets held for sale 8,809      
Liabilities held for sale        
Accounts payable 165      
Salaries and benefits 48      
Income and other taxes 51      
Interest 10      
Current portion of deferred revenue 116      
Other current liabilities 42      
Long-term debt, net of discounts 1,377      
Deferred income taxes, net 129      
Pension and other post-retirement benefits 58      
Other non-current liabilities 261      
Total liabilities held for sale 2,257      
Allowance for doubtful accounts 24      
Accumulated depreciation 8,737      
Long-term finance lease obligations 57      
Disposal Group, Held-for-sale, Not Discontinued Operations | Senior notes | Embarq Corporation        
Liabilities held for sale        
Long-term debt, net of discounts 1,400      
Unamortized discount 117      
Disposal Group, Held-for-sale, Not Discontinued Operations | Latin American Business        
Assets held for sale        
Cash and cash equivalents 39      
Accounts receivable, less allowance of $3, $21 and $24 83      
Other current assets 81      
Property, plant and equipment, net accumulated depreciation of $434, $8,303 and $8,737 1,591      
Goodwill 239      
Other intangible assets, net 126      
Other non-current assets 75      
Total assets held for sale 2,234      
Liabilities held for sale        
Accounts payable 101      
Salaries and benefits 23      
Income and other taxes 27      
Interest 0      
Current portion of deferred revenue 26      
Other current liabilities 7      
Long-term debt, net of discounts 0      
Deferred income taxes, net 129      
Pension and other post-retirement benefits 2      
Other non-current liabilities 120      
Total liabilities held for sale 435      
Allowance for doubtful accounts 3      
Accumulated depreciation 434      
Disposal Group, Held-for-sale, Not Discontinued Operations | ILEC Business        
Assets held for sale        
Cash and cash equivalents 1      
Accounts receivable, less allowance of $3, $21 and $24 227      
Other current assets 45      
Property, plant and equipment, net accumulated depreciation of $434, $8,303 and $8,737 3,491      
Goodwill 2,615      
Other intangible assets, net 158      
Other non-current assets 38      
Total assets held for sale 6,575      
Liabilities held for sale        
Accounts payable 64      
Salaries and benefits 25      
Income and other taxes 24      
Interest 10      
Current portion of deferred revenue 90      
Other current liabilities 35      
Long-term debt, net of discounts 1,377      
Deferred income taxes, net 0      
Pension and other post-retirement benefits 56      
Other non-current liabilities 141      
Total liabilities held for sale 1,822 $ 1,400    
Allowance for doubtful accounts 21      
Accumulated depreciation $ 8,303      
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Jan. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]        
Goodwill $ 15,986 $ 0 $ 18,870 $ 21,534
Indefinite-lived intangible assets 9   278  
Total other intangible assets, net 6,970   8,219  
Customer relationships        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible assets, net 5,365   6,344  
Accumulated amortization 11,740   11,060  
Capitalized software        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible assets, net 1,459   1,520  
Accumulated amortization 3,624   3,279  
Trade names, patents and other        
Finite-Lived Intangible Assets [Line Items]        
Finite-lived intangible assets, net 137   77  
Accumulated amortization $ 160   $ 120  
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Additional Information (Details)
1 Months Ended 3 Months Ended 12 Months Ended
Oct. 31, 2021
USD ($)
reporting_unit
Jul. 31, 2021
USD ($)
reporting_unit
Jan. 31, 2021
USD ($)
Jan. 01, 2021
USD ($)
Oct. 31, 2020
USD ($)
reporting_unit
Oct. 31, 2019
reporting_unit
Jan. 31, 2021
reporting_unit
Mar. 31, 2019
USD ($)
Dec. 31, 2021
USD ($)
segment
$ / shares
Dec. 31, 2020
USD ($)
$ / shares
Dec. 31, 2019
USD ($)
$ / shares
Aug. 03, 2021
USD ($)
Jan. 01, 2019
Goodwill and Intangible Assets Disclosure [Abstract]                          
Intangible assets, gross (including goodwill)                 $ 38,500,000,000        
Impairment of indefinite-lived intangible assets                 $ 0 $ 0      
Number of reportable segments | segment                 2        
Number of reporting units | reporting_unit 5 5     8 8 5            
Goodwill impairment $ 0 $ 0 $ 0   $ 2,600,000,000     $ 6,500,000,000 $ 0 2,642,000,000 $ 6,506,000,000    
Finite-Lived Intangible Assets [Line Items]                          
Amortization of intangible assets                 1,300,000,000 1,700,000,000 1,700,000,000    
Net income (loss)                 $ 2,033,000,000 $ (1,232,000,000) $ (5,269,000,000)    
Basic earnings (loss) per common share (in dollars per share) | $ / shares                 $ 1.92 $ (1.14) $ (4.92)    
Diluted earnings (loss) per common share (in dollars per share) | $ / shares                 $ 1.91 $ (1.14) $ (4.92)    
Weighted average cost of capital, percentage         7.60%                
Cost of debt, after tax, percentage         2.50%                
Cost of equity, percentage         10.70%                
Control premium, percent         33.00%     4.10%         4.50%
Acquired finite-lived intangible assets, weighted average useful life                 7 years        
Measurement Input, Revenue Multiple                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         2.3                
Measurement Input, Revenue Multiple | Minimum                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         2.0     2.1          
Measurement Input, Revenue Multiple | Maximum                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         5.5     4.9          
Measurement Input, EBITDA Multiple                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         5.7                
Measurement Input, EBITDA Multiple | Minimum                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         4.8     4.9          
Measurement Input, EBITDA Multiple | Maximum                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill impairment, measurement input         12.5     9.8          
Mass Markets                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent 277.00% 150.00%                      
NA Business                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent 8.00% 24.00%                      
EMEA                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent 57.00% 58.00%       5.00%              
Weighted average cost of capital, percentage         8.00%                
Cost of debt, after tax, percentage         2.90%                
Cost of equity, percentage         11.20%                
LATAM                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent 100.00% 100.00%     74.00% 63.00%              
Weighted average cost of capital, percentage         14.30%                
Cost of debt, after tax, percentage         6.90%                
Cost of equity, percentage         18.80%                
APAC                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent 125.00% 134.00%     23.00% 38.00%              
Weighted average cost of capital, percentage         10.10%                
Cost of debt, after tax, percentage         3.90%                
Cost of equity, percentage         14.00%                
NA GAM                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent         46.00% 55.00%              
Consumer                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent           44.00%              
Small and Medium Business                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent           41.00%              
Enterprise                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent         2.00% 53.00%              
Wholesale                          
Finite-Lived Intangible Assets [Line Items]                          
Goodwill, impairment percent           46.00%              
Customer relationships                          
Finite-Lived Intangible Assets [Line Items]                          
Acquired finite-lived intangible assets, weighted average useful life                 8 years        
Capitalized software                          
Finite-Lived Intangible Assets [Line Items]                          
Acquired finite-lived intangible assets, weighted average useful life                 4 years        
Trade names                          
Finite-Lived Intangible Assets [Line Items]                          
Acquired finite-lived intangible assets, weighted average useful life                 1 year        
Reclassification of Intangible Assets                          
Finite-Lived Intangible Assets [Line Items]                          
Amortization of intangible assets                 $ 22,000,000        
Net income (loss)                 $ (17,000,000)        
Basic earnings (loss) per common share (in dollars per share) | $ / shares                 $ (0.02)        
Diluted earnings (loss) per common share (in dollars per share) | $ / shares                 $ (0.02)        
Reclassification of Intangible Assets | Right-of-way assets                          
Finite-Lived Intangible Assets [Line Items]                          
Finite-lived intangible assets       $ 268,000,000                  
Remaining amortization period       9 years                  
Reclassification of Intangible Assets | Right-of-way assets | Disposal Group, Held-for-sale, Not Discontinued Operations                          
Finite-Lived Intangible Assets [Line Items]                          
Finite-lived intangible assets                       $ 169,000,000  
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Rollforward Goodwill (Details) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2021
Jul. 31, 2021
Jan. 31, 2021
Oct. 31, 2020
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Goodwill Activity                
As of beginning of period           $ 18,870,000,000 $ 21,534,000,000  
Reclassified as held for sale           (2,859,000,000)    
Effect of foreign currency exchange rate change and other           (25,000,000) (22,000,000)  
Impairment $ 0 $ 0 $ 0 $ (2,600,000,000) $ (6,500,000,000) 0 (2,642,000,000) $ (6,506,000,000)
As of end of period     0     15,986,000,000 18,870,000,000 21,534,000,000
Goodwill accumulated impairment loss           7,700,000,000 12,900,000,000 10,300,000,000
Goodwill accumulated impairment loss           7,700,000,000 12,900,000,000 10,300,000,000
Disposal Group, Held-for-sale, Not Discontinued Operations                
Goodwill Activity                
Reclassified as held for sale           2,900,000,000    
International and Global Accounts                
Goodwill Activity                
As of beginning of period           2,555,000,000 2,670,000,000  
Effect of foreign currency exchange rate change and other             (15,000,000)  
Impairment             (100,000,000)  
As of end of period     (2,555,000,000)       2,555,000,000 2,670,000,000
Enterprise                
Goodwill Activity                
As of beginning of period           4,738,000,000 4,738,000,000  
Effect of foreign currency exchange rate change and other             0  
Impairment             0  
As of end of period     (4,738,000,000)       4,738,000,000 4,738,000,000
Small and Medium Business                
Goodwill Activity                
As of beginning of period           2,808,000,000 3,259,000,000  
Effect of foreign currency exchange rate change and other             (7,000,000)  
Impairment             (444,000,000)  
As of end of period     (2,808,000,000)       2,808,000,000 3,259,000,000
Wholesale                
Goodwill Activity                
As of beginning of period           3,114,000,000 3,813,000,000  
Effect of foreign currency exchange rate change and other             0  
Impairment             (699,000,000)  
As of end of period     (3,114,000,000)       3,114,000,000 3,813,000,000
Consumer                
Goodwill Activity                
As of beginning of period           5,655,000,000 7,054,000,000  
Effect of foreign currency exchange rate change and other             0  
Impairment             (1,399,000,000)  
As of end of period     (5,655,000,000)       $ 5,655,000,000 $ 7,054,000,000
Business                
Goodwill Activity                
Reclassified as held for sale           (913,000,000)    
Effect of foreign currency exchange rate change and other           (25,000,000)    
As of end of period     12,173,000,000     11,235,000,000    
Mass Markets                
Goodwill Activity                
Reclassified as held for sale           (1,946,000,000)    
Effect of foreign currency exchange rate change and other           0    
As of end of period     $ 6,697,000,000     $ 4,751,000,000    
v3.22.0.1
Goodwill, Customer Relationships and Other Intangible Assets - Future Amortization Expense (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2022 $ 1,034
2023 940
2024 849
2025 798
2026 $ 721
v3.22.0.1
Revenue Recognition - Revenue by Segment, Sales Channel and Product Category (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue $ 19,687 $ 20,712 $ 21,458
Adjustments for Non-ASC 606 Revenue (1,892) (1,915) (1,953)
Total Revenue from Contracts with Customers 17,795 18,797 19,505
Goods and services transferred at a point in time      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue from Contracts with Customers 138 250 221
Services performed over time      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue from Contracts with Customers 17,657 18,547 19,284
Operating Segments      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 19,687 20,712 21,458
Operating Segments | Business      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 14,119 14,817 15,239
Adjustments for Non-ASC 606 Revenue (1,095) (1,078) (1,099)
Total Revenue from Contracts with Customers 13,024 13,739 14,140
Operating Segments | Business | Compute and Application Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,741 1,755 1,735
Adjustments for Non-ASC 606 Revenue (533) (524) (533)
Total Revenue from Contracts with Customers 1,208 1,231 1,202
Operating Segments | Business | IP and Data Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 6,212 6,413 6,566
Adjustments for Non-ASC 606 Revenue (5) (8) 0
Total Revenue from Contracts with Customers 6,207 6,405 6,566
Operating Segments | Business | Fiber Infrastructure      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 2,248 2,248 2,157
Adjustments for Non-ASC 606 Revenue (305) (286) (285)
Total Revenue from Contracts with Customers 1,943 1,962 1,872
Operating Segments | Business | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 3,918 4,401 4,781
Adjustments for Non-ASC 606 Revenue (252) (260) (281)
Total Revenue from Contracts with Customers 3,666 4,141 4,500
Operating Segments | Business | International and Global Accounts      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 4,053 4,118 4,172
Adjustments for Non-ASC 606 Revenue (409) (375) (364)
Total Revenue from Contracts with Customers 3,644 3,743 3,808
Operating Segments | Business | International and Global Accounts | Compute and Application Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 715 772 790
Adjustments for Non-ASC 606 Revenue (280) (265) (265)
Total Revenue from Contracts with Customers 435 507 525
Operating Segments | Business | International and Global Accounts | IP and Data Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,708 1,731 1,764
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 1,708 1,731 1,764
Operating Segments | Business | International and Global Accounts | Fiber Infrastructure      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 886 822 785
Adjustments for Non-ASC 606 Revenue (129) (110) (99)
Total Revenue from Contracts with Customers 757 712 686
Operating Segments | Business | International and Global Accounts | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 744 793 833
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 744 793 833
Operating Segments | Business | Large Enterprise      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 3,722 3,915 3,836
Adjustments for Non-ASC 606 Revenue (113) (132) (134)
Total Revenue from Contracts with Customers 3,609 3,783 3,702
Operating Segments | Business | Large Enterprise | Compute and Application Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 698 663 610
Adjustments for Non-ASC 606 Revenue (63) (82) (89)
Total Revenue from Contracts with Customers 635 581 521
Operating Segments | Business | Large Enterprise | IP and Data Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,554 1,588 1,589
Adjustments for Non-ASC 606 Revenue 0 (2) 0
Total Revenue from Contracts with Customers 1,554 1,586 1,589
Operating Segments | Business | Large Enterprise | Fiber Infrastructure      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 521 590 524
Adjustments for Non-ASC 606 Revenue (50) (46) (44)
Total Revenue from Contracts with Customers 471 544 480
Operating Segments | Business | Large Enterprise | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 949 1,074 1,113
Adjustments for Non-ASC 606 Revenue 0 (2) (1)
Total Revenue from Contracts with Customers 949 1,072 1,112
Operating Segments | Business | Mid-Market Enterprise      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 2,729 2,969 3,152
Adjustments for Non-ASC 606 Revenue (44) (31) (32)
Total Revenue from Contracts with Customers 2,685 2,938 3,120
Operating Segments | Business | Mid-Market Enterprise | Compute and Application Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 139 137 147
Adjustments for Non-ASC 606 Revenue (31) (16) (11)
Total Revenue from Contracts with Customers 108 121 136
Operating Segments | Business | Mid-Market Enterprise | IP and Data Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,754 1,845 1,894
Adjustments for Non-ASC 606 Revenue (5) (6) 0
Total Revenue from Contracts with Customers 1,749 1,839 1,894
Operating Segments | Business | Mid-Market Enterprise | Fiber Infrastructure      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 218 218 219
Adjustments for Non-ASC 606 Revenue (8) (9) (20)
Total Revenue from Contracts with Customers 210 209 199
Operating Segments | Business | Mid-Market Enterprise | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 618 769 892
Adjustments for Non-ASC 606 Revenue 0 0 (1)
Total Revenue from Contracts with Customers 618 769 891
Operating Segments | Business | Wholesale      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 3,615 3,815 4,079
Adjustments for Non-ASC 606 Revenue (529) (540) (569)
Total Revenue from Contracts with Customers 3,086 3,275 3,510
Operating Segments | Business | Wholesale | Compute and Application Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 189 183 188
Adjustments for Non-ASC 606 Revenue (159) (161) (168)
Total Revenue from Contracts with Customers 30 22 20
Operating Segments | Business | Wholesale | IP and Data Services      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,196 1,249 1,319
Adjustments for Non-ASC 606 Revenue 0 0 0
Total Revenue from Contracts with Customers 1,196 1,249 1,319
Operating Segments | Business | Wholesale | Fiber Infrastructure      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 623 618 629
Adjustments for Non-ASC 606 Revenue (118) (121) (122)
Total Revenue from Contracts with Customers 505 497 507
Operating Segments | Business | Wholesale | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 1,607 1,765 1,943
Adjustments for Non-ASC 606 Revenue (252) (258) (279)
Total Revenue from Contracts with Customers 1,355 1,507 1,664
Operating Segments | Mass Markets      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 5,568 5,895 6,219
Adjustments for Non-ASC 606 Revenue (797) (837) (854)
Total Revenue from Contracts with Customers 4,771 5,058 5,365
Operating Segments | Mass Markets | Voice and Other      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 2,047 2,341 2,688
Adjustments for Non-ASC 606 Revenue (80) (109) (143)
Total Revenue from Contracts with Customers 1,967 2,232 2,545
Operating Segments | Mass Markets | Consumer Broadband      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 2,875 2,909 2,876
Adjustments for Non-ASC 606 Revenue (211) (221) (215)
Total Revenue from Contracts with Customers 2,664 2,688 2,661
Operating Segments | Mass Markets | SBG Broadband      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 156 153 163
Adjustments for Non-ASC 606 Revenue (16) (15) (4)
Total Revenue from Contracts with Customers 140 138 159
Operating Segments | Mass Markets | CAF II      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Total Revenue 490 492 492
Adjustments for Non-ASC 606 Revenue (490) (492) (492)
Total Revenue from Contracts with Customers $ 0 $ 0 $ 0
v3.22.0.1
Revenue Recognition - Contract with Customer, Asset and Liability (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Capitalized Contract Cost [Line Items]    
Customer receivables $ 1,493 $ 1,889
Contract assets 73 108
Contract liabilities 680 950
Accounts receivable, gross 1,600 2,100
Allowance for doubtful accounts receivable 102 $ 174
Disposal Group, Held-for-sale, Not Discontinued Operations    
Capitalized Contract Cost [Line Items]    
Customer receivables 288  
Contract assets 9  
Contract liabilities $ 161  
v3.22.0.1
Revenue Recognition - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Revenue recognized $ 605 $ 672  
Contract liabilities   $ 950 $ 1,000
Minimum      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Contract term 1 year    
Maximum      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Contract term 5 years    
Mass Markets | Weighted Average      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Length of customer life 30 months    
Business | Weighted Average      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Length of customer life 29 months    
v3.22.0.1
Revenue Recognition - Remaining Performance Obligation (Details)
$ in Billions
Dec. 31, 2021
USD ($)
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation $ 6.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Remaining performance obligation, percentage 77.00%
Remaining performance obligation, satisfaction period 3 years
v3.22.0.1
Revenue Recognition - Capitalized Contract Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Acquisition Costs    
Capitalized Contract Cost [Roll Forward]    
Beginning of period balance $ 289 $ 326
Costs incurred 176 181
Amortization (209) (218)
Reclassified as held for sale (34)  
End of period balance 222 289
Fulfillment Costs    
Capitalized Contract Cost [Roll Forward]    
Beginning of period balance 216 221
Costs incurred 151 141
Amortization (149) (146)
Reclassified as held for sale (32)  
End of period balance $ 186 $ 216
v3.22.0.1
Leases - Lease Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating and short-term lease cost $ 535 $ 729
Finance lease cost:    
Amortization of right-of-use assets 37 36
Interest on lease liability 16 12
Total finance lease cost 53 48
Total lease cost $ 588 $ 777
v3.22.0.1
Leases - Additional Information (Details)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
property
Dec. 31, 2020
USD ($)
property
Dec. 31, 2019
USD ($)
Leases [Abstract]      
Number of ceased properties | property 23 16  
Accelerated lease costs $ 35 $ 41  
Gross rental expense 588 777 $ 733
Sublease income 25 25 24
Finance lease, not yet commenced 15    
Gross rental income $ 1,200 $ 1,300 $ 1,400
Rental income as percentage of operating revenue 6.00% 6.00% 7.00%
v3.22.0.1
Leases - Supplemental Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Assets    
Operating lease assets $ 1,451 $ 1,699
Finance lease assets 314 329
Total leased assets $ 1,765 $ 2,028
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other, net Other, net
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Property, plant and equipment, net of accumulated depreciation of $19,271 and $31,596 Property, plant and equipment, net of accumulated depreciation of $19,271 and $31,596
Current    
Operating $ 385 $ 379
Finance $ 19 $ 26
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List] Long-term Debt and Lease Obligation, Current Long-term Debt and Lease Obligation, Current
Noncurrent    
Operating $ 1,171 $ 1,405
Finance $ 251 $ 267
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Other
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] LONG-TERM DEBT LONG-TERM DEBT
Total lease liabilities $ 1,826 $ 2,077
Weighted-average remaining lease term (years)    
Operating leases 6 years 9 months 18 days 6 years 8 months 12 days
Finance leases 13 years 1 month 6 days 12 years 1 month 6 days
Weighted-average discount rate    
Operating leases 5.54% 6.01%
Finance leases 4.89% 4.94%
v3.22.0.1
Leases - Supplemental Cash Flows (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating cash flows for operating leases $ 525 $ 566
Operating cash flows for finance leases 15 14
Financing cash flows for finance leases 52 40
Operating lease right-of-use assets obtained in exchange for new operating lease liabilities 165 375
Right-of-use assets obtained in exchange for new finance lease liabilities $ 94 $ 124
v3.22.0.1
Leases - Maturities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Operating Leases    
2022 $ 457  
2023 355  
2024 253  
2025 198  
2026 149  
Thereafter 490  
Total lease payments 1,902  
Less: interest (346)  
Total 1,556  
Less: current portion (385) $ (379)
Long-term portion 1,171 1,405
Finance Leases    
2022 33  
2023 28  
2024 28  
2025 28  
2026 28  
Thereafter 223  
Total lease payments 368  
Less: interest (98)  
Total 270  
Less: current portion (19) (26)
Long-term portion $ 251 $ 267
v3.22.0.1
Credit Losses on Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance $ 191 $ 95
Provision for expected losses 105 189
Write-offs charged against the allowance (177) (133)
Recoveries collected 19 42
Reclassified as held for sale (24)  
Foreign currency exchange rate changes adjustment   (2)
Ending balance 114 191
Previously Reported    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 191  
Ending balance   191
Cumulative Effect, Period of Adoption, Adjustment    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance   11
Business    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 109 58
Provision for expected losses 50 115
Write-offs charged against the allowance (76) (74)
Recoveries collected 13 24
Reclassified as held for sale (8)  
Foreign currency exchange rate changes adjustment   (2)
Ending balance 88 109
Business | Previously Reported    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 121  
Ending balance   121
Business | Revision of Prior Period, Reclassification, Adjustment    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 12  
Ending balance   12
Mass Markets    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 82  
Provision for expected losses 55  
Write-offs charged against the allowance (101)  
Recoveries collected 6  
Reclassified as held for sale (16)  
Ending balance 26 82
Consumer    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance   37
Provision for expected losses   74
Write-offs charged against the allowance   (59)
Recoveries collected   18
Foreign currency exchange rate changes adjustment   0
Consumer | Previously Reported    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance 70  
Ending balance   70
Consumer | Revision of Prior Period, Reclassification, Adjustment    
Financing Receivable, Allowance for Credit Loss [Roll Forward]    
Beginning balance $ 70  
Ending balance   $ 70
v3.22.0.1
Long-Term Debt and Credit Facilities - Schedule of Long Term Debt (Details) - USD ($)
$ in Millions
12 Months Ended
Nov. 27, 2019
Dec. 31, 2021
Dec. 31, 2020
Jan. 24, 2020
Long-term Debt and Credit Facilities        
Finance lease and other obligations   $ 347 $ 295  
Unamortized premiums (discounts), net   21 (78)  
Unamortized debt issuance costs   (220) (237)  
Total long-term debt   28,982 31,837  
Less current maturities   (1,554) (2,427)  
Long-term debt, excluding current maturities   27,428 29,410  
Term loan | Term Loan A        
Long-term Debt and Credit Facilities        
Long-term debt, gross   1,050    
Lumen Technologies, Inc. | Credit facility | Revolving Credit Facility        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 200 150  
Lumen Technologies, Inc. | Credit facility | Revolving Credit Facility | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent)   2.00%    
Lumen Technologies, Inc. | Term loan | Term Loan A        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 1,050 $ 1,108  
Long-term debt, weighted average interest rate   2.104% 2.147%  
Lumen Technologies, Inc. | Term loan | Term Loan A | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent)   2.00%    
Lumen Technologies, Inc. | Term loan | Term Loan A-1        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 300 $ 316  
Long-term debt, weighted average interest rate   2.104% 2.147%  
Lumen Technologies, Inc. | Term loan | Term Loan A-1 | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent)   2.00%    
Lumen Technologies, Inc. | Term loan | Term Loan B        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 4,900 $ 4,950  
Long-term debt, weighted average interest rate   2.354% 2.397%  
Lumen Technologies, Inc. | Term loan | Term Loan B | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent)   2.25%    
Lumen Technologies, Inc. | Senior notes | 4.000% Senior Secured Notes Due 2027        
Long-term Debt and Credit Facilities        
Stated interest rate   4.00%   4.00%
Long-term debt, gross   $ 1,250 $ 1,250  
Lumen Technologies, Inc. | Senior notes | Senior Notes Maturing 2022-2042        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 8,414 8,645  
Lumen Technologies, Inc. | Senior notes | Senior Notes Maturing 2022-2042 | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   4.50%    
Lumen Technologies, Inc. | Senior notes | Senior Notes Maturing 2022-2042 | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   7.65%    
Level 3 Financing, Inc. | Term loan | Tranche B 2027 Term Loan        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 3,111 $ 3,111  
Long-term debt, weighted average interest rate   1.854% 1.897%  
Level 3 Financing, Inc. | Term loan | Tranche B 2027 Term Loan | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent) 1.00% 1.75%    
Level 3 Financing, Inc. | Senior notes | Senior Notes, Maturing 2027-2029        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 1,500 $ 1,500  
Level 3 Financing, Inc. | Senior notes | Senior Notes, Maturing 2027-2029 | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   3.40%    
Level 3 Financing, Inc. | Senior notes | Senior Notes, Maturing 2027-2029 | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   3.875%    
Level 3 Financing, Inc. | Senior notes | Senior Notes Maturing 2025-2029        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 5,515 5,515  
Level 3 Financing, Inc. | Senior notes | Senior Notes Maturing 2025-2029 | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   3.625%    
Level 3 Financing, Inc. | Senior notes | Senior Notes Maturing 2025-2029 | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   5.375%    
Embarq Corporation subsidiaries | Senior notes        
Long-term Debt and Credit Facilities        
Stated interest rate   7.995%    
Long-term debt, gross   $ 0 1,437  
Embarq Corporation subsidiaries | First mortgage bonds        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 138 138  
Embarq Corporation subsidiaries | First mortgage bonds | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   7.125%    
Embarq Corporation subsidiaries | First mortgage bonds | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   8.375%    
Qwest Corporation | Term loan        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 215 $ 215  
Long-term debt, weighted average interest rate   2.11% 2.15%  
Qwest Corporation | Term loan | LIBOR        
Long-term Debt and Credit Facilities        
Basis spread (as a percent)   2.00%    
Qwest Corporation | Senior notes        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 1,986 $ 3,170  
Qwest Corporation | Senior notes | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   6.50%    
Qwest Corporation | Senior notes | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   7.75%    
Qwest Capital Funding, Inc. | Senior notes        
Long-term Debt and Credit Facilities        
Long-term debt, gross   $ 255 $ 352  
Qwest Capital Funding, Inc. | Senior notes | Minimum        
Long-term Debt and Credit Facilities        
Stated interest rate   6.875%    
Qwest Capital Funding, Inc. | Senior notes | Maximum        
Long-term Debt and Credit Facilities        
Stated interest rate   7.75%    
v3.22.0.1
Long-Term Debt and Credit Facilities - Long-Term Debt Maturities (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Long-term Debt and Credit Facilities  
2022 $ 1,554
2023 977
2024 1,158
2025 3,127
2026 2,062
2027 and thereafter 20,303
Total long-term debt 29,181
Disposal Group, Held-for-sale, Not Discontinued Operations  
Long-term Debt and Credit Facilities  
Total long-term debt $ 1,500
v3.22.0.1
Long-Term Debt and Credit Facilities - Amended and Restated Credit Agreement (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Long-term Debt and Credit Facilities    
Gain (loss) on extinguishment of debt $ 8  
Amended Credit Agreement | Minimum | Base Rate    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 1.50%  
Amended Credit Agreement | Minimum | Eurodollar    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 0.50%  
Amended Credit Agreement | Maximum | Base Rate    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 2.25%  
Amended Credit Agreement | Maximum | Eurodollar    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 1.25%  
Revolving Credit Facility | Revolving Credit Facility    
Long-term Debt and Credit Facilities    
Long-term debt, gross $ 2,200  
Revolving Credit Facility | Revolving Credit Facility | CenturyLink Escrow, LLC | Swingline Loan    
Long-term Debt and Credit Facilities    
Maximum borrowing capacity 250  
Revolving Credit Facility | Revolving Credit Facility | CenturyLink Escrow, LLC | Letter of Credit    
Long-term Debt and Credit Facilities    
Maximum borrowing capacity 800  
Revolving Credit Facility | Term Loan A-1    
Long-term Debt and Credit Facilities    
Long-term debt, gross 300  
Revolving Credit Facility | Term Loan B    
Long-term Debt and Credit Facilities    
Long-term debt, gross 4,900  
Term Loan | Term Loan A    
Long-term Debt and Credit Facilities    
Long-term debt, gross 1,050  
Senior Notes    
Long-term Debt and Credit Facilities    
Gain (loss) on extinguishment of debt   $ (109)
Senior Notes | Amended Credit Agreement    
Long-term Debt and Credit Facilities    
Gain (loss) on extinguishment of debt $ 67 $ (67)
Senior Notes | Amended Credit Agreement, Term Loan B | Base Rate    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 1.25%  
Senior Notes | Amended Credit Agreement, Term Loan B | Eurodollar    
Long-term Debt and Credit Facilities    
Basis spread (as a percent) 2.25%  
v3.22.0.1
Long-Term Debt and Credit Facilities - Term Loans and Certain Other Debt of Subsidiaries (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 26, 2020
Oct. 23, 2020
Nov. 27, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Qwest Corporation | Senior Notes | 6.625% Senior Notes            
Long-term Debt and Credit Facilities            
Amount of debt redeemed $ 160          
Stated interest rate 6.625%          
Qwest Corporation | Term Loan            
Long-term Debt and Credit Facilities            
Long-term debt, gross       $ 215 $ 215  
Qwest Corporation | Term Loan | LIBOR            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)       2.00%    
Qwest Corporation | CoBank ACB | Variable Rate Term Loan            
Long-term Debt and Credit Facilities            
Proceeds from issuance of debt   $ 215        
Qwest Corporation | CoBank ACB | Variable Rate Term Loan | Minimum | LIBOR            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)   1.50%        
Qwest Corporation | CoBank ACB | Variable Rate Term Loan | Minimum | Base Rate            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)   0.50%        
Qwest Corporation | CoBank ACB | Variable Rate Term Loan | Maximum | LIBOR            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)   2.50%        
Qwest Corporation | CoBank ACB | Variable Rate Term Loan | Maximum | Base Rate            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)   1.50%        
Qwest Corporation | CoBank ACB | Term Loan            
Long-term Debt and Credit Facilities            
Long-term debt, gross           $ 100
Level 3 Financing, Inc. | Term Loan | Tranche B 2027 Term Loan            
Long-term Debt and Credit Facilities            
Long-term debt, gross       $ 3,111 $ 3,111  
Level 3 Financing, Inc. | Term Loan | Tranche B 2027 Term Loan | Federal Funds Effective Rate            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)     0.50%      
Level 3 Financing, Inc. | Term Loan | Tranche B 2027 Term Loan | LIBOR            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)     1.00% 1.75%    
Level 3 Financing, Inc. | Term Loan | Tranche B 2027 Term Loan | Base Rate            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)     0.75%      
Level 3 Financing, Inc. | Term Loan | Tranche B 2027 Term Loan | Eurodollar            
Long-term Debt and Credit Facilities            
Basis spread (as a percent)     1.75%      
v3.22.0.1
Long-Term Debt and Credit Facilities - Revolving Letters of Credit and Senior Notes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Revolving Credit Facility    
Long-term Debt and Credit Facilities    
Letters of credit outstanding $ 0 $ 0
Lumen Technologies, Inc. | Letter of Credit | Uncommitted Revolving Letter of Credit Facility    
Long-term Debt and Credit Facilities    
Maximum borrowing capacity 225  
Letters of credit outstanding $ 88 97
Lumen Technologies, Inc. | Senior Notes    
Long-term Debt and Credit Facilities    
Redemption price, percentage 101.00%  
Level 3 Parent, LLC | Letter of Credit    
Long-term Debt and Credit Facilities    
Letters of credit outstanding $ 9 18
Level 3 Parent, LLC | Letter of Credit | Collateralized Debt Obligations    
Long-term Debt and Credit Facilities    
Letters of credit outstanding $ 5 $ 11
v3.22.0.1
Long-Term Debt and Credit Facilities - Repayments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 01, 2021
Feb. 16, 2021
Dec. 31, 2021
Dec. 31, 2020
Long-term Debt and Credit Facilities        
Redemptions of debt     $ 1,100 $ 6,200
Repayments of debt     2,800  
Gain (loss) on extinguishment of debt     8  
Senior Notes        
Long-term Debt and Credit Facilities        
Gain (loss) on extinguishment of debt       (109)
Senior Notes | Amended Credit Agreement        
Long-term Debt and Credit Facilities        
Gain (loss) on extinguishment of debt     67 (67)
Term Loan        
Long-term Debt and Credit Facilities        
Repayments of debt     125  
Level 3 Financing, Inc. | Senior Notes        
Long-term Debt and Credit Facilities        
Redemptions of debt     900 2,000
Qwest Corporation | Senior Notes        
Long-term Debt and Credit Facilities        
Redemptions of debt   $ 235   2,800
Repayments of debt $ 950      
Lumen Technologies, Inc.        
Long-term Debt and Credit Facilities        
Redemptions of debt       1,300
Lumen Technologies, Inc. | Senior Notes        
Long-term Debt and Credit Facilities        
Payment of aggregate principal amount at maturity       973
Lumen Technologies, Inc. | Term Loan        
Long-term Debt and Credit Facilities        
Repayments of debt       125
Lumen Technologies, Inc. | Senior Notes        
Long-term Debt and Credit Facilities        
Redemptions of debt       $ 78
Repayments of debt     1,200  
Qwest Capital Funding, Inc. | Senior Notes        
Long-term Debt and Credit Facilities        
Repayments of debt     $ 97  
v3.22.0.1
Long-Term Debt and Credit Facilities - New Issuances (Details) - USD ($)
$ in Millions
Jun. 15, 2021
Jan. 13, 2021
Dec. 31, 2021
Nov. 27, 2020
Aug. 12, 2020
Jun. 15, 2020
Jan. 24, 2020
Lumen Technologies, Inc. | Senior Notes | 6.450% Senior Notes, Series S, Due 2021              
Long-term Debt and Credit Facilities              
Stated interest rate 6.45%            
Amount of debt redeemed $ 1,200            
Lumen Technologies, Inc. | Senior Notes | 5.375% Senior Notes Due 2029              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance $ 1,000            
Stated interest rate 5.375%            
Lumen Technologies, Inc. | Senior Notes | 4.500% Senior Notes Due 2029              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance       $ 1,000      
Stated interest rate       4.50%      
Lumen Technologies, Inc. | Senior Notes | 4.000% Senior Secured Notes Due 2027              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance             $ 1,250
Stated interest rate     4.00%       4.00%
Level 3 Financing, Inc. | Senior Notes              
Long-term Debt and Credit Facilities              
Amount of debt redeemed   $ 900          
Level 3 Financing, Inc. | Senior Notes | 3.750% Sustainability-Linked Senior Notes 2029              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance   $ 900          
Stated interest rate   3.75%          
Level 3 Financing, Inc. | Senior Notes | 3.625% Senior Notes Due 2029              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance         $ 840    
Stated interest rate         3.625%    
Level 3 Financing, Inc. | Senior Notes | 4.250% Senior Secured Notes Due 2028              
Long-term Debt and Credit Facilities              
Aggregate principal amount of debt issuance           $ 1,200  
Stated interest rate           4.25%  
v3.22.0.1
Long-Term Debt and Credit Facilities - Interest Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]      
Gross interest expense $ 1,575 $ 1,743 $ 2,093
Capitalized interest (53) (75) (72)
Total interest expense $ 1,522 $ 1,668 $ 2,021
v3.22.0.1
Long-Term Debt and Credit Facilities - Covenants and Guarantees (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Letter of Credit | Uncommitted Revolving Letter of Credit Facility | Letter of Credit  
Long-term Debt and Credit Facilities  
Maximum borrowing capacity $ 225
Embarq Corporation  
Long-term Debt and Credit Facilities  
Maximum indebtedness, as a percent of tangible assets 15.00%
Maximum | Qwest Corporation  
Long-term Debt and Credit Facilities  
EBITDA ratio 2.85
Minimum  
Long-term Debt and Credit Facilities  
Coverage ratio 2.00
Debt Covenant, Period Two | Maximum  
Long-term Debt and Credit Facilities  
Leverage ratio 4.75
v3.22.0.1
Accounts Receivable - Schedule in Accounts Receivable (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Other receivables $ 62 $ 91
Total accounts receivable 1,658 2,153
Less: allowance for credit losses (114) (191)
Accounts receivable, less allowance 1,544 1,962
Earned and unbilled receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable 315 345
Trade and purchased receivables    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Total accounts receivable $ 1,281 $ 1,717
v3.22.0.1
Accounts Receivable - Activity of Allowance for Doubtful Accounts (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Accounts Receivable, Allowance for Credit Loss [Roll Forward]        
Beginning Balance $ 191 $ 106 $ 142  
Additions 105 189 145  
Deductions (182) (104) (181)  
Ending Balance 114 191 106 $ 142
Financing Receivable, Allowance for Credit Loss [Line Items]        
Stockholders' equity 11,840 11,162 13,470  
Income tax expense 668 450 503  
Retained Earnings (Accumulated Deficit)        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Stockholders' equity $ (5,998) $ (8,031) (6,814) (1,643)
Income tax expense     2 37
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings (Accumulated Deficit)        
Financing Receivable, Allowance for Credit Loss [Line Items]        
Stockholders' equity     9 96
Income tax expense     $ 2 $ (37)
v3.22.0.1
Property, Plant and Equipment - Schedule of Property, Plant, and Equipment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Property, plant and equipment    
Gross property, plant and equipment $ 40,166 $ 57,934
Accumulated depreciation (19,271) (31,596)
Net property, plant and equipment 20,895 26,338
Land    
Property, plant and equipment    
Gross property, plant and equipment 751 848
Fiber, conduit and other outside plant    
Property, plant and equipment    
Gross property, plant and equipment $ 15,366 26,522
Fiber, conduit and other outside plant | Minimum    
Property, plant and equipment    
Depreciable Lives 15 years  
Fiber, conduit and other outside plant | Maximum    
Property, plant and equipment    
Depreciable Lives 45 years  
Central office and other network electronics    
Property, plant and equipment    
Gross property, plant and equipment $ 15,394 20,692
Central office and other network electronics | Minimum    
Property, plant and equipment    
Depreciable Lives 3 years  
Central office and other network electronics | Maximum    
Property, plant and equipment    
Depreciable Lives 10 years  
Support assets    
Property, plant and equipment    
Gross property, plant and equipment $ 7,181 8,261
Support assets | Minimum    
Property, plant and equipment    
Depreciable Lives 3 years  
Support assets | Maximum    
Property, plant and equipment    
Depreciable Lives 30 years  
Construction in progress    
Property, plant and equipment    
Gross property, plant and equipment $ 1,474 $ 1,611
v3.22.0.1
Property, Plant and Equipment - Additional Information (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]      
Depreciation $ 2.7 $ 3.0 $ 3.1
Property, plant and equipment, net classified as held for sale $ 5.1    
v3.22.0.1
Property, Plant and Equipment - Change in ARO (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Asset Retirement Obligation      
Balance at beginning of year $ 199 $ 197 $ 190
Accretion expense 10 10 11
Liabilities settled (13) (8) (14)
Change in estimate (2) 0 10
Reclassified as held for sale (12) 0 0
Balance at end of year $ 182 $ 199 $ 197
v3.22.0.1
Severance (Details) - Severance - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Restructuring reserve [Roll Forward]    
Balance at the beginning of the period $ 103 $ 89
Accrued to expense 3 151
Payments, net (70) (137)
Balance at the end of the period $ 36 $ 103
v3.22.0.1
Employee Benefits - Additional Information (Details)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
USD ($)
retiree
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
Jan. 01, 2022
USD ($)
Employee
Dec. 31, 2018
USD ($)
Defined Benefit Plan Disclosure [Line Items]            
Benefits paid, net of participant contributions and direct subsidy receipts   $ 203        
Expected future benefit payment, next twelve months, net of direct subsidies   $ 217        
Ultimate health care cost trend rate   4.50%        
Remaining estimated life of plan participants   8 years        
Commingled funds, redemption notice period   180 days        
Return on plan assets   $ 422 $ 1,200      
Expected return on plan assets   535 593      
Difference between the actual and expected returns on pension and post-retirement plan assets   (113) 618      
Active health care benefit expenses   309 307 $ 381    
Participating employees' contribution to health care plan   $ 120 $ 133 148    
Common stock included in the assets of the Defined Contribution Plan (in shares) | shares   10 11      
Expenses related to the 401(k) Plan   $ 96 $ 101 113    
US            
Defined Benefit Plan Disclosure [Line Items]            
Pension liability   1,400        
Change in Assumptions for Defined Benefit Plans            
Defined Benefit Plan Disclosure [Line Items]            
Benefit obligation   $ 37 (3) (4)    
Minimum            
Defined Benefit Plan Disclosure [Line Items]            
Expected health care cost trend rate   5.00%        
Maximum            
Defined Benefit Plan Disclosure [Line Items]            
Expected health care cost trend rate   5.75%        
Combined Pension Plan            
Defined Benefit Plan Disclosure [Line Items]            
Funded (unfunded) status of plan   $ (1,147) (1,656)      
Expected future benefits, next twelve months   850        
One-time special termination charge   6 21 6    
Settlements   383        
Benefit obligation   $ 9,678 12,202 12,217   $ 11,594
Short term interest crediting rates   1.50%        
Long term interest crediting rates   3.50%        
Plan assets   $ 8,531 $ 10,546 $ 10,493   10,033
Expected long-term rate of return on plan assets   5.50% 6.50% 6.50%    
Expected long-term rate of return on plan assets before administrative expenses   5.50%        
Return on plan assets   $ 422 $ 1,210 $ 1,575    
Combined Pension Plan | Forecast            
Defined Benefit Plan Disclosure [Line Items]            
Expected long-term rate of return on plan assets 6.00%          
Combined Pension Plan | New Lumen Pension Plan | Subsequent Event            
Defined Benefit Plan Disclosure [Line Items]            
Benefit obligation         $ 2,500  
Plan assets         $ 2,200  
Number of active participants (in employees) | Employee         2,500  
Number of other participants (in employees) | Employee         19,000  
Combined Pension Plan | Debt Security            
Defined Benefit Plan Disclosure [Line Items]            
Plan assets, target allocation, percentage   55.00%        
Combined Pension Plan | Derivatives            
Defined Benefit Plan Disclosure [Line Items]            
Plan assets, target allocation, percentage   45.00%        
Combined Pension Plan | US            
Defined Benefit Plan Disclosure [Line Items]            
Number of retirees | retiree   22,600        
Combined Pension Plan | Qualified Plan            
Defined Benefit Plan Disclosure [Line Items]            
Funded (unfunded) status of plan   $ (1,100) (1,700)      
Contributions   0 0      
Settlements   383 0 0    
Expected return on plan assets   535 593 618    
Combined Pension Plan | Nonqualified Plan            
Defined Benefit Plan Disclosure [Line Items]            
Funded (unfunded) status of plan   (46) (51)      
Benefits paid by company   5 5      
Expected future benefits, next twelve months   $ 4        
Combined Pension Plan | Level 3 Parent, LLC            
Defined Benefit Plan Disclosure [Line Items]            
Amortization period of the plan shortfall   7 years        
Combined Pension Plan | legacy Level 3            
Defined Benefit Plan Disclosure [Line Items]            
Funded (unfunded) status of plan   $ (17) (33)      
Post-Retirement Benefit Plans            
Defined Benefit Plan Disclosure [Line Items]            
Funded (unfunded) status of plan   (2,776) (3,043)      
Contributions   0 0      
Benefits paid by company   247 $ 255 $ 300    
Expected future benefits, next twelve months   $ 220        
Ultimate health care cost trend rate   4.50% 4.50% 4.50%    
Benefit obligation   $ 2,781 $ 3,048 $ 3,037   $ 2,977
Plan assets   $ 5 $ 5 $ 13    
Expected long-term rate of return on plan assets   4.00% 4.00% 4.00%    
Expected return on plan assets   $ 0 $ 1 $ 1    
Post-Retirement Benefit Plans | Minimum            
Defined Benefit Plan Disclosure [Line Items]            
Expected health care cost trend rate   5.00% 5.00%      
Post-Retirement Benefit Plans | Maximum            
Defined Benefit Plan Disclosure [Line Items]            
Expected health care cost trend rate   5.75% 6.25%      
v3.22.0.1
Employee Benefits - Expected Cash Flows (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Medicare Part D Subsidy Receipts  
2022 $ (3)
2023 (3)
2024 (3)
2025 (3)
2026 (3)
2027 - 2031 (10)
Combined Pension Plan  
Defined Benefit Plan Disclosure [Line Items]  
2022 850
2023 729
2024 706
2025 686
2026 664
2027 - 2031 2,978
Post-Retirement Benefit Plans  
Defined Benefit Plan Disclosure [Line Items]  
2022 220
2023 216
2024 211
2025 206
2026 200
2027 - 2031 $ 899
v3.22.0.1
Employee Benefits - Net Periodic Benefit Costs Actuarial Assumptions (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Ultimate health care cost trend rate 4.50%    
Combined Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Rate of compensation increase 3.25% 3.25% 3.25%
Expected long-term rate of return on plan assets 5.50% 6.50% 6.50%
Combined Pension Plan | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 1.70% 2.79% 3.94%
Combined Pension Plan | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.88% 3.55% 4.44%
Post-Retirement Benefit Plans      
Defined Benefit Plan Disclosure [Line Items]      
Expected long-term rate of return on plan assets 4.00% 4.00% 4.00%
Ultimate health care cost trend rate 4.50% 4.50% 4.50%
Post-Retirement Benefit Plans | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 1.58% 1.69% 3.84%
Initial health care cost trend rate 6.25% 5.00% 5.00%
Post-Retirement Benefit Plans | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.60% 3.35% 4.38%
Initial health care cost trend rate 5.00% 6.50% 6.50%
v3.22.0.1
Employee Benefits - Schedule of Net Periodic Benefit (Income) Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Expected return on plan assets $ (535) $ (593)  
Combined Pension Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 56 59 $ 56
Interest cost 201 324 436
Settlement charges 383    
Combined Pension Plan | Qualified Plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 56 59 56
Interest cost 201 324 436
Expected return on plan assets (535) (593) (618)
Settlement charges 383 0 0
Special termination benefits charge 6 13 6
Recognition of prior service credit (9) (9) (8)
Recognition of actuarial loss 184 202 223
Net periodic pension expense (income) 286 (4) 95
Post-Retirement Benefit Plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Service cost 14 14 15
Interest cost 47 69 110
Expected return on plan assets 0 (1) (1)
Recognition of prior service credit 15 16 16
Recognition of actuarial loss 4 0 0
Curtailment loss 0 8 0
Net periodic pension expense (income) $ 80 $ 106 $ 140
v3.22.0.1
Employee Benefits - Benefit Obligations Actuarial Assumptions (Details)
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Ultimate health care cost trend rate 4.50%    
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 5.00%    
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 5.75%    
Combined Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.85% 2.43%  
Rate of compensation increase 3.25% 3.25%  
Post-Retirement Benefit Plans      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.84% 2.40%  
Ultimate health care cost trend rate 4.50% 4.50% 4.50%
Post-Retirement Benefit Plans | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 5.00% 5.00%  
Post-Retirement Benefit Plans | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Initial health care cost trend rate 5.75% 6.25%  
v3.22.0.1
Employee Benefits - Change in Benefit Obligations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Combined Pension Plan      
Change in benefit obligation      
Benefit obligation at beginning of year $ 12,202 $ 12,217 $ 11,594
Service cost 56 59 56
Interest cost 201 324 436
Plan amendments (13) (3) (9)
Special termination benefits charge 6 13 6
Actuarial (gain) loss (337) 749 1,249
Benefits paid from plan assets (766) (1,157) (1,115)
Settlement payments and annuity purchase (1,671) 0 0
Benefit obligation at end of year 9,678 12,202 12,217
Post-Retirement Benefit Plans      
Change in benefit obligation      
Benefit obligation at beginning of year 3,048 3,037 2,977
Service cost 14 14 15
Interest cost 47 69 110
Participant contributions 41 46 52
Direct subsidy receipts 3 6 7
Actuarial (gain) loss (125) 134 180
Curtailment loss 0 4 0
Benefits paid by company (247) (255) (300)
Benefits paid from plan assets 0 (7) (4)
Benefit obligation at end of year $ 2,781 $ 3,048 $ 3,037
v3.22.0.1
Employee Benefits - Change in Plan Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Change in plan assets      
Return on plan assets $ 422 $ 1,200  
Combined Pension Plan      
Change in plan assets      
Fair value of plan assets at beginning of year 10,546 10,493 $ 10,033
Return on plan assets 422 1,210 1,575
Benefits paid from plan assets (766) (1,157) (1,115)
Settlement payments and annuity purchase (1,671) 0 0
Fair value of plan assets at end of year $ 8,531 $ 10,546 $ 10,493
v3.22.0.1
Employee Benefits - Fair Value of Plan Assets and Liabilities (Details) - Combined Pension Plan - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) $ 8,531 $ 10,546 $ 10,493 $ 10,033
Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 11 8 22  
NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 2,690 3,368    
Investment Grade Bonds | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 127 352    
High Yield Bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 6 6 5  
High Yield Bonds | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 70 25    
U.S. Stocks | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 5 2 1  
U.S. Stocks | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 71 192    
Non-U.S. Stocks | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 398 308    
Emerging Market Stocks | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 11 81    
Private Equity | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 348 283    
Private Debt | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0 $ 16  
Private Debt | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 495 505    
Market Neutral Hedge Funds | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 141 222    
Directional Hedge Funds | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 241 254    
Real Estate | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 420 543    
Multi-Asset Strategies | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 38 375    
Cash equivalents and short-term investments | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 330 228    
Fair Value, Measurements, Recurring        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 8,531 10,546    
Fair Value, Measurements, Recurring | NAV        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 2,690 3,368    
Fair Value, Measurements, Recurring | Total Excluding Investments Valued at NAV | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 6,034 7,179    
Fair Value, Measurements, Recurring | Total Excluding Investments Valued at NAV | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 1,555 2,389    
Fair Value, Measurements, Recurring | Total Excluding Investments Valued at NAV | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 4,468 4,782    
Fair Value, Measurements, Recurring | Total Excluding Investments Valued at NAV | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 11 8    
Fair Value, Measurements, Recurring | Investment Grade Bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 4,606 4,792    
Fair Value, Measurements, Recurring | Investment Grade Bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 862 726    
Fair Value, Measurements, Recurring | Investment Grade Bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 3,744 4,066    
Fair Value, Measurements, Recurring | Investment Grade Bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | High Yield Bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 178 268    
Fair Value, Measurements, Recurring | High Yield Bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | High Yield Bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 172 262    
Fair Value, Measurements, Recurring | High Yield Bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 6 6    
Fair Value, Measurements, Recurring | Emerging Market Bonds | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 233 390    
Fair Value, Measurements, Recurring | Emerging Market Bonds | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 64 218    
Fair Value, Measurements, Recurring | Emerging Market Bonds | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 169 172    
Fair Value, Measurements, Recurring | Emerging Market Bonds | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | U.S. Stocks | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 338 655    
Fair Value, Measurements, Recurring | U.S. Stocks | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 330 653    
Fair Value, Measurements, Recurring | U.S. Stocks | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 3 0    
Fair Value, Measurements, Recurring | U.S. Stocks | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 5 2    
Fair Value, Measurements, Recurring | Non-U.S. Stocks | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 256 594    
Fair Value, Measurements, Recurring | Non-U.S. Stocks | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 256 593    
Fair Value, Measurements, Recurring | Non-U.S. Stocks | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 1    
Fair Value, Measurements, Recurring | Non-U.S. Stocks | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | Multi-Asset Strategies | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 41 199    
Fair Value, Measurements, Recurring | Multi-Asset Strategies | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 41 199    
Fair Value, Measurements, Recurring | Multi-Asset Strategies | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | Multi-Asset Strategies | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | Derivatives | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 1 (1)    
Fair Value, Measurements, Recurring | Derivatives | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | Derivatives | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 1 (1)    
Fair Value, Measurements, Recurring | Derivatives | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0 0    
Fair Value, Measurements, Recurring | Repurchase Agreements | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) (193)      
Fair Value, Measurements, Recurring | Repurchase Agreements | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0      
Fair Value, Measurements, Recurring | Repurchase Agreements | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) (193)      
Fair Value, Measurements, Recurring | Repurchase Agreements | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 0      
Fair Value, Measurements, Recurring | Cash equivalents and short-term investments | Total        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 381 281    
Fair Value, Measurements, Recurring | Cash equivalents and short-term investments | Level 1        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 2 0    
Fair Value, Measurements, Recurring | Cash equivalents and short-term investments | Level 2        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) 379 281    
Fair Value, Measurements, Recurring | Cash equivalents and short-term investments | Level 3        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets (liabilities) $ 0 $ 0    
v3.22.0.1
Employee Benefits - Derivative Instruments (Details) - Combined Pension Plan - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Exchange-traded U.S. equity futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount $ 108 $ 84
Exchange-traded Treasury and other interest rate futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 1,688 1,033
Exchange-traded Foreign currency futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 11 12
Exchange-traded EURO futures    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 5 6
Interest rate swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 127 124
Credit default swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 132 43
Index swaps    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 1,036 1,297
Foreign exchange forwards    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount 93 769
Options    
Defined Benefit Plan Disclosure [Line Items]    
Derivative, notional amount $ 654 $ 222
v3.22.0.1
Employee Benefits - Change in Plan Assets Measured at Fair Value (Details) - Combined Pension Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Change in plan assets    
Fair value of plan assets at beginning of year $ 10,546 $ 10,493
Fair value of plan assets at end of year 8,531 10,546
Level 3    
Change in plan assets    
Fair value of plan assets at beginning of year 8 22
Acquisitions (dispositions)   (16)
Actual return on plan assets 3 2
Fair value of plan assets at end of year 11 8
Level 3 | High Yield Bonds    
Change in plan assets    
Fair value of plan assets at beginning of year 6 5
Acquisitions (dispositions)   1
Actual return on plan assets 0 0
Fair value of plan assets at end of year 6 6
Level 3 | U.S. Stocks    
Change in plan assets    
Fair value of plan assets at beginning of year 2 1
Acquisitions (dispositions)   0
Actual return on plan assets 3 1
Fair value of plan assets at end of year 5 2
Level 3 | Private Debt    
Change in plan assets    
Fair value of plan assets at beginning of year 0 16
Acquisitions (dispositions)   (17)
Actual return on plan assets 0 1
Fair value of plan assets at end of year $ 0 $ 0
v3.22.0.1
Employee Benefits - Unfunded Status (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]        
Non-current portion of unfunded status $ (3,710) $ (4,556)    
Combined Pension Plan        
Defined Benefit Plan Disclosure [Line Items]        
Benefit obligation (9,678) (12,202) $ (12,217) $ (11,594)
Fair value of plan assets (liabilities) 8,531 10,546 10,493 10,033
Unfunded status (1,147) (1,656)    
Current portion of unfunded status 0 0    
Non-current portion of unfunded status (1,147) (1,656)    
Post-Retirement Benefit Plans        
Defined Benefit Plan Disclosure [Line Items]        
Benefit obligation (2,781) (3,048) (3,037) $ (2,977)
Fair value of plan assets (liabilities) 5 5 $ 13  
Unfunded status (2,776) (3,043)    
Current portion of unfunded status (212) (228)    
Non-current portion of unfunded status $ (2,564) $ (2,815)    
v3.22.0.1
Employee Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
AOCI Attributable To Parent, Tax [Roll Forward]      
Net Change in AOCL $ (222) $ (17) $ 62
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period 11,162 13,470  
Recognition of Net Periodic Benefits Expense 500 208  
Deferrals 155 (341)  
Net Change in AOCL 655 (133) (219)
Balance at end of period 11,840 11,162 13,470
Defined benefit plan      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (2,469) (2,413)  
Recognition of Net Periodic Benefits Expense 437 162  
Deferrals 291 (218)  
Net Change in AOCL 728 (56)  
Balance at end of period (1,741) (2,469) (2,413)
Combined Pension Plan | Defined benefit plan      
AOCI Attributable To Parent, Tax [Roll Forward]      
Balance at beginning of period 755 770  
Recognition of Net Periodic Benefits Expense (137) 47  
Deferrals (59) 32  
Net Change in AOCL (196) (15)  
Balance at end of period 559 755 770
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (2,197) (2,229)  
Recognition of Net Periodic Benefits Expense 423 147  
Deferrals 197 (115)  
Net Change in AOCL 620 32  
Balance at end of period (1,577) (2,197) (2,229)
Combined Pension Plan | Net actuarial loss      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period (2,993) (3,046)  
Recognition of Net Periodic Benefits Expense 186 203  
Deferrals 243 (150)  
Net Change in AOCL 429 53  
Balance at end of period (2,564) (2,993) (3,046)
Combined Pension Plan | Settlement charge      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period 0    
Recognition of Net Periodic Benefits Expense 383    
Deferrals 0    
Net Change in AOCL 383    
Balance at end of period 383 0  
Combined Pension Plan | Prior service cost      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period 41 47  
Recognition of Net Periodic Benefits Expense (9) (9)  
Deferrals 13 3  
Net Change in AOCL 4 (6)  
Balance at end of period 45 41 47
Post-Retirement Benefit Plans | Defined benefit plan      
AOCI Attributable To Parent, Tax [Roll Forward]      
Balance at beginning of period 90 62  
Recognition of Net Periodic Benefits Expense (5) 5  
Deferrals (31) 33  
Net Change in AOCL (36) 28  
Balance at end of period 54 90 62
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (272) (184)  
Recognition of Net Periodic Benefits Expense 14 15  
Deferrals 94 (103)  
Net Change in AOCL 108 (88)  
Balance at end of period (164) (272) (184)
Post-Retirement Benefit Plans | Net actuarial loss      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period (346) (175)  
Recognition of Net Periodic Benefits Expense 4 0  
Deferrals 125 (171)  
Net Change in AOCL 129 (171)  
Balance at end of period (217) (346) (175)
Post-Retirement Benefit Plans | Prior service cost      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period (20) (71)  
Recognition of Net Periodic Benefits Expense 15 16  
Deferrals 0 35  
Net Change in AOCL 15 51  
Balance at end of period (5) (20) (71)
Post-Retirement Benefit Plans | Curtailment loss      
AOCI Attributable To Parent, Before Tax [Roll Forward]      
Balance at beginning of period (4) 0  
Recognition of Net Periodic Benefits Expense 0 4  
Deferrals 0 0  
Net Change in AOCL 0 (4)  
Balance at end of period $ (4) $ (4) $ 0
v3.22.0.1
Stock-based Compensation - Stock Options (Details)
12 Months Ended
Dec. 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options outstanding (in shares) 0
Stock options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Expiration period 10 years
v3.22.0.1
Stock-based Compensation - Restricted Stock Awards and Restricted Stock Unit Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total fair value of awards vested during the period $ 139 $ 126 $ 118
Restricted Stock and Restricted Stock Units      
Summary of restricted stock and restricted stock unit activity      
Nonvested at the beginning of the period (in shares) 21,508    
Granted (in shares) 13,908 17,800 9,800
Vested (in shares) (11,161)    
Forfeited (in shares) (1,828)    
Nonvested at the end of the period (in shares) 22,427 21,508  
Weighted-Average Grant Date Fair Value      
Nonvested at the beginning of the period (in dollars per share) $ 12.37    
Granted (in dollars per share) 13.95 $ 12.08 $ 12.41
Vested (in dollars per share) 13.56    
Forfeited (in dollars per share) 12.58    
Nonvested at the end of the period (in dollars per share) $ 12.74 $ 12.37  
Restricted Stock and Restricted Stock Units | Service conditions      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Restricted Stock and Restricted Stock Units | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award (as a percent) 0.00%    
Restricted Stock and Restricted Stock Units | Minimum | Services conditions and either market or performance conditions      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 2 years    
Restricted Stock and Restricted Stock Units | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of target award (as a percent) 200.00%    
Restricted Stock and Restricted Stock Units | Maximum | Services conditions and either market or performance conditions      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
v3.22.0.1
Stock-based Compensation - Compensation Expense and Tax Benefit (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]      
Compensation cost $ 120 $ 175 $ 162
Tax benefit recognized in the income statement for share-based payment arrangements 29 $ 43 $ 39
Unrecognized compensation cost $ 147    
Weighted-average recognition period 1 year 6 months    
v3.22.0.1
Earnings (Loss) Per Common Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Number of shares of common stock excluded from the computation of diluted earnings per share 3,200 3,200 6,800
Income (Loss) (Numerator)      
Net income (loss) $ 2,033 $ (1,232) $ (5,269)
Net income (loss) applicable to common stock for computing basic earnings (loss) per common share 2,033 (1,232) (5,269)
Net income (loss) as adjusted for purposes of computing diluted earnings (loss) per common share $ 2,033 $ (1,232) $ (5,269)
Weighted average number of shares:      
Outstanding during period (in shares) 1,077,393 1,096,284 1,088,730
Non-vested restricted stock (in shares) (17,852) (17,154) (17,289)
Weighted average shares outstanding for computing basic earnings (loss) per common share (in shares) 1,059,541 1,079,130 1,071,441
Incremental common shares attributable to dilutive securities:      
Shares issuable under convertible securities (in shares) 10 0 0
Shares issuable under incentive compensation plans (in shares) 7,227 0 0
Number of shares as adjusted for purposes of computing diluted earnings (loss) per common share (in shares) 1,066,778 1,079,130 1,071,441
Basic earnings (loss) per common share (in dollars per share) $ 1.92 $ (1.14) $ (4.92)
Diluted earnings (loss) per common share (in dollars per share) $ 1.91 $ (1.14) $ (4.92)
Stock compensation plan      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Number of shares of common stock excluded from the computation of diluted earnings per share   5,300 3,000
v3.22.0.1
Fair Value of Financial Instruments - Carrying Amount and Fair Value of Debt (Details) - Fair value measurements determined on a nonrecurring basis - Level 2 - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Carrying Amount    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations $ 28,635 $ 31,542
Interest rate swap contracts 25 107
Carrying Amount | Disposal Group, Held-for-sale, Not Discontinued Operations    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations 1,400  
Fair Value    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations 29,221 33,217
Interest rate swap contracts 25 $ 107
Fair Value | Disposal Group, Held-for-sale, Not Discontinued Operations    
Fair value disclosure    
Long-term debt, excluding finance lease and other obligations $ 1,600  
v3.22.0.1
Fair Value of Financial Instruments - Investments Held at Net Asset Value (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Investment without readily determinable fair value   $ 0
Fair value measurements determined on a nonrecurring basis    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Unrealized gain on equity securities held $ 138  
Fair Value | Fair value measurements determined on a nonrecurring basis | Level 1    
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]    
Equity securities $ 299 $ 161
v3.22.0.1
Derivative Financial Instruments - Additional Information (Details) - Interest rate swaps
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Jun. 30, 2019
USD ($)
derivative_agreement
Feb. 28, 2019
USD ($)
derivative_agreement
Derivative [Line Items]      
Reclassification in next twelve months $ 25    
Designated as Hedging Instrument      
Derivative [Line Items]      
Number of instruments | derivative_agreement   6 5
Designated as Hedging Instrument | Cash Flow Hedging      
Derivative [Line Items]      
Notional amount   $ 1,500 $ 2,500
Fixed interest rate   1.58% 2.48%
Designated as Hedging Instrument | Cash Flow Hedging | One Counterparty      
Derivative [Line Items]      
Number of instruments | derivative_agreement     1
Notional amount     $ 700
Designated as Hedging Instrument | Cash Flow Hedging | Four Counterparties      
Derivative [Line Items]      
Number of instruments | derivative_agreement     4
Notional amount     $ 450
Designated as Hedging Instrument | Cash Flow Hedging | Six Counterparties      
Derivative [Line Items]      
Notional amount   $ 250  
v3.22.0.1
Derivative Financial Instruments - Fair Value of Derivatives (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Cash Flow Hedging | Interest rate swaps | Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Fair Value $ 25 $ 107
v3.22.0.1
Derivative Financial Instruments - (Gains) Losses Recognized in OCI (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Designated as Hedging Instrument | Interest rate swaps      
Derivatives, Fair Value [Line Items]      
Loss recognized in other comprehensive income $ 1 $ 115 $ 53
v3.22.0.1
Derivative Financial Instruments - Reclassification from AOCI (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]      
Realized losses reclassified from AOCI $ 63 $ 46 $ 2
Designated as Hedging Instrument | Interest rate swaps      
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]      
Realized losses reclassified from AOCI $ 83 $ 62 $ 2
v3.22.0.1
Income Taxes - Components of Income Tax Expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Federal      
Current $ 5 $ 5 $ 7
Deferred 514 338 376
State      
Current 42 50 15
Deferred 72 55 81
Foreign      
Current 23 29 35
Deferred 12 (27) (11)
Total income tax expense 668 450 503
Income tax expense allocation      
Attributable to income 668 450 503
Stockholders' equity:      
Tax effect of the change in accumulated other comprehensive loss $ 222 $ 17 $ (62)
v3.22.0.1
Income Taxes - Reconciliation (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation of the statutory federal income tax rate to effective income tax rate      
Statutory federal income tax rate 21.00% 21.00% 21.00%
State income taxes, net of federal income tax benefit 3.30% (10.80%) (1.60%)
Goodwill impairment 0.00% (71.00%) (28.60%)
Change in liability for unrecognized tax position 0.10% (0.60%) (0.20%)
Legislative changes to GILTI 0.00% 1.80% 0.00%
Nondeductible executive stock compensation 0.20% (1.60%) (0.10%)
Change in valuation allowance 0.00% 2.60% 0.00%
Net foreign income taxes 0.60% (0.60%) (0.50%)
Research and development credits (0.50%) 1.60% 0.10%
Other, net 0.00% 0.10% (0.70%)
Effective income tax rate 24.70% (57.50%) (10.60%)
v3.22.0.1
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Impairment losses   $ 555 $ 1,400
Tax regulations passed in 2020 related to GILTI - unfavorable (favorable)   (14)  
Expense (benefit) related to release of valuation allowances   20  
Net deferred tax liability $ 3,889 3,150  
Deferred income tax liabilities, net 4,049 3,342  
Deferred income tax assets, net 160 191  
Valuation allowance 1,566 1,538  
Valuation allowance, DTA, increase (decrease), amount 28    
Unrecognized tax benefits that would impact effective tax rate 273 267  
Interest on income taxes accrued 24 $ 23  
Decrease in unrecorded benefit within the next 12 months (3)    
Federal      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforward 2,904    
State      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforward 16,000    
Foreign      
Operating Loss Carryforwards [Line Items]      
Operating loss carryforward $ 6,000    
v3.22.0.1
Income Taxes - Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Deferred tax assets    
Post-retirement and pension benefit costs $ 978 $ 1,164
Net operating loss carryforwards 2,463 3,138
Other employee benefits 96 119
Other 554 604
Gross deferred tax assets 4,091 5,025
Less valuation allowance (1,566) (1,538)
Net deferred tax assets 2,525 3,487
Deferred tax liabilities    
Property, plant and equipment, primarily due to depreciation differences (3,941) (3,882)
Goodwill and other intangible assets (2,473) (2,755)
Gross deferred tax liabilities (6,414) (6,637)
Net deferred tax liability $ (3,889) $ (3,150)
v3.22.0.1
Income Taxes - Schedule of Net Operating Loss (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating Loss Carryforwards [Line Items]      
Uncertain tax positions $ (1,375) $ (1,474) $ (1,538)
Federal      
Operating Loss Carryforwards [Line Items]      
NOLs per return 7,361    
Uncertain tax positions (4,457)    
Financial NOLs 2,904    
Federal | Tax Year 2026      
Operating Loss Carryforwards [Line Items]      
NOLs per return 741    
Federal | Tax Year 2027      
Operating Loss Carryforwards [Line Items]      
NOLs per return 375    
Federal | Tax Year 2028      
Operating Loss Carryforwards [Line Items]      
NOLs per return 637    
Federal | Tax Year 2029      
Operating Loss Carryforwards [Line Items]      
NOLs per return 645    
Federal | Tax Year 2030      
Operating Loss Carryforwards [Line Items]      
NOLs per return 668    
Federal | Tax Year 2031      
Operating Loss Carryforwards [Line Items]      
NOLs per return 238    
Federal | Tax Year 2032      
Operating Loss Carryforwards [Line Items]      
NOLs per return 2,976    
Federal | Tax Year 2033      
Operating Loss Carryforwards [Line Items]      
NOLs per return 733    
Federal | Tax Year 2037      
Operating Loss Carryforwards [Line Items]      
NOLs per return $ 348    
v3.22.0.1
Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Unrecognized tax benefits at beginning of year $ 1,474 $ 1,538
Increase in tax positions of the current year netted against deferred tax assets 1 18
Increase in tax positions of prior periods netted against deferred tax assets 0 5
Decrease in tax positions of the current year netted against deferred tax assets (101) (86)
Decrease in tax positions of prior periods netted against deferred tax assets (1) (5)
Increase in tax positions taken in the current year 4 4
Increase in tax positions taken in the prior year 2 1
Decrease due to payments/settlements (3) (1)
Decrease from the lapse of statute of limitations (1) 0
Unrecognized tax benefits at end of year $ 1,375 $ 1,474
v3.22.0.1
Segment Information - Additional Information (Details)
12 Months Ended
Dec. 31, 2021
sales_channel
segment
Segment Reporting Information [Line Items]  
Number of operating segments 2
Number of reportable segments 2
Business  
Segment Reporting Information [Line Items]  
Number of sales channel | sales_channel 4
v3.22.0.1
Segment Information - Segment Results and Operating Revenue (Details ) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Operating revenues by products and services      
Revenues $ 19,687 $ 20,712 $ 21,458
Cost of services and products 8,488 8,934 9,134
Selling, general and administrative 2,895 3,464 3,715
Less: stock-based compensation (120) (175) (162)
Total expense 11,263 12,223 12,687
Total segment adjusted EBITDA 8,424 8,489 8,771
Operating Segments      
Operating revenues by products and services      
Revenues 19,687 20,712 21,458
Cost of services and products 3,636 3,852 3,812
Selling, general and administrative 1,719 1,843 1,994
Less: stock-based compensation 0 0 0
Total expense 5,355 5,695 5,806
Total segment adjusted EBITDA 14,332 15,017 15,652
Operating Segments | Business      
Operating revenues by products and services      
Revenues 14,119 14,817 15,239
Cost of services and products 3,484 3,649 3,598
Selling, general and administrative 1,189 1,269 1,364
Less: stock-based compensation 0 0 0
Total expense 4,673 4,918 4,962
Total segment adjusted EBITDA 9,446 9,899 10,277
Operating Segments | Mass Markets      
Operating revenues by products and services      
Revenues 5,568 5,895 6,219
Cost of services and products 152 203 214
Selling, general and administrative 530 574 630
Less: stock-based compensation 0 0 0
Total expense 682 777 844
Total segment adjusted EBITDA 4,886 5,118 5,375
Operations and Other      
Operating revenues by products and services      
Revenues 0 0 0
Cost of services and products 4,852 5,082 5,322
Selling, general and administrative 1,176 1,621 1,721
Less: stock-based compensation (120) (175) (162)
Total expense 5,908 6,528 6,881
Total segment adjusted EBITDA $ (5,908) $ (6,528) $ (6,881)
v3.22.0.1
Segment Information - Reconciliation (Details ) - USD ($)
3 Months Ended 12 Months Ended
Oct. 31, 2021
Jul. 31, 2021
Jan. 31, 2021
Oct. 31, 2020
Mar. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                
Depreciation and amortization           $ (4,019,000,000) $ (4,710,000,000) $ (4,829,000,000)
Goodwill impairment $ 0 $ 0 $ 0 $ (2,600,000,000) $ (6,500,000,000) 0 (2,642,000,000) (6,506,000,000)
Stock-based compensation           (120,000,000) (175,000,000) (162,000,000)
OPERATING INCOME (LOSS)           4,285,000,000 962,000,000 (2,726,000,000)
Total other expense, net           (1,584,000,000) (1,744,000,000) (2,040,000,000)
INCOME (LOSS) BEFORE INCOME TAXES           2,701,000,000 (782,000,000) (4,766,000,000)
Income tax expense           668,000,000 450,000,000 503,000,000
NET INCOME (LOSS)           2,033,000,000 (1,232,000,000) (5,269,000,000)
Operating Segments                
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                
Total segment adjusted EBITDA           14,332,000,000 15,017,000,000 15,652,000,000
Operations and Other                
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]                
Depreciation and amortization           (4,019,000,000) (4,710,000,000) (4,829,000,000)
Goodwill impairment           0 (2,642,000,000) (6,506,000,000)
Operations and other expenses           (5,908,000,000) (6,528,000,000) (6,881,000,000)
Stock-based compensation           (120,000,000) (175,000,000) (162,000,000)
OPERATING INCOME (LOSS)           4,285,000,000 962,000,000 (2,726,000,000)
Total other expense, net           $ (1,584,000,000) $ (1,744,000,000) $ (2,040,000,000)
v3.22.0.1
Commitments, Contingencies and Other Items - Additional Information (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
Feb. 28, 2017
USD ($)
patent
lawsuit
Dec. 31, 2017
USD ($)
Employee
Contracts
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2005
USD ($)
subsidiary
Commitments and Contingencies            
Estimate of possible loss       $ 103,000 $ 141,000  
Number of patents allegedly infringed | patent   1        
Purchase obligations maturities            
Total purchase commitments       1,100,000    
2022       414,000    
2023 through 2024       386,000    
2025 through 2026       91,000    
2027 and thereafter       188,000    
Unfavorable regulatory action            
Commitments and Contingencies            
Estimate of possible loss       300    
Missouri Municipalities | Judicial ruling            
Commitments and Contingencies            
Number of patents allegedly infringed | lawsuit   1        
Litigation settlement amount   $ 4,000        
Columbia and Joplin Municipalities | Judicial ruling            
Commitments and Contingencies            
Litigation settlement amount $ 55,000          
Peruvian Tax Litigation | Pending litigation            
Commitments and Contingencies            
Number of subsidiaries issues with tax assessment | subsidiary           1,000,000
Loss contingency, asserted claim           $ 26,000
Brazilian Tax Claims | Pending litigation | Maximum            
Commitments and Contingencies            
Loss contingency, range of possible loss, portion not accrued       $ 46,000    
Qui Tam Action | Level 3 Parent, LLC            
Commitments and Contingencies            
Number of former employees who made false statements | Employee     2      
Number of government contracts in question | Contracts     2      
Loss contingency, damages sought, value     $ 50,000      
v3.22.0.1
Commitments, Contingencies and Other Items - Right of Way Agreements (Details) - Right-of-Way Agreements
$ in Millions
Dec. 31, 2021
USD ($)
Future rental commitments  
2022 $ 246
2023 99
2024 84
2025 74
2026 71
2027 and thereafter 962
Total future minimum payments $ 1,536
v3.22.0.1
Other Financial Information - Other Current Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Prepaid Expenses and Other Current Assets [Abstract]    
Prepaid expenses $ 295 $ 290
Income tax receivable 22 7
Materials, supplies and inventory 96 105
Contract assets 45 66
Note receivable 56 0
Receivable for sale of land 56 0
Other 11 53
Total other current assets 829 808
Other current assets reclassified as held for sale 126  
Acquisition Costs    
Prepaid Expenses and Other Current Assets [Abstract]    
Contract costs 142 173
Fulfillment Costs    
Prepaid Expenses and Other Current Assets [Abstract]    
Contract costs $ 106 $ 114
v3.22.0.1
Other Financial Information - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Capital expenditures included in accounts payable $ 248 $ 329
v3.22.0.1
Repurchases of Lumen Common Stock (Details) - USD ($)
$ / shares in Units, shares in Millions
12 Months Ended
Aug. 03, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Equity [Abstract]        
Repurchase program, period 24 months      
Repurchase program, authorized amount $ 1,000,000,000      
Number of shares repurchased   80.9    
Repurchases of common stock   $ 1,000,000,000    
Average purchase price (in dollars per share)   $ 12.36    
Common Stock        
Equity [Abstract]        
Repurchases of common stock   $ 81,000,000 $ 0 $ 0
Equity, Class of Treasury Stock [Line Items]        
Repurchased common stock that were retired   81,000,000    
Additional Paid-in Capital        
Equity [Abstract]        
Repurchases of common stock   919,000,000 $ 0 $ 0
Equity, Class of Treasury Stock [Line Items]        
Repurchased common stock that were retired   $ 919,000,000    
v3.22.0.1
Accumulated Other Comprehensive Loss - AOCI Activity (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period $ 11,162 $ 13,470  
Other comprehensive income (loss) before reclassifications 155 (341)  
Amounts reclassified from accumulated other comprehensive loss 500 208  
Net Change in AOCL 655 (133) $ (219)
Balance at end of period 11,840 11,162 13,470
Defined Benefit Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (2,469) (2,413)  
Other comprehensive income (loss) before reclassifications 291 (218)  
Amounts reclassified from accumulated other comprehensive loss 437 162  
Net Change in AOCL 728 (56)  
Balance at end of period (1,741) (2,469) (2,413)
Defined Benefit Plans | Pension Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (2,197) (2,229)  
Other comprehensive income (loss) before reclassifications 197 (115)  
Amounts reclassified from accumulated other comprehensive loss 423 147  
Net Change in AOCL 620 32  
Balance at end of period (1,577) (2,197) (2,229)
Defined Benefit Plans | Post-Retirement Benefit Plans      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (272) (184)  
Other comprehensive income (loss) before reclassifications 94 (103)  
Amounts reclassified from accumulated other comprehensive loss 14 15  
Net Change in AOCL 108 (88)  
Balance at end of period (164) (272) (184)
Foreign Currency Translation Adjustment and Other      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (265) (228)  
Other comprehensive income (loss) before reclassifications (135) (37)  
Amounts reclassified from accumulated other comprehensive loss 0 0  
Net Change in AOCL (135) (37)  
Balance at end of period (400) (265) (228)
Interest Rate Swap      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (79) (39)  
Other comprehensive income (loss) before reclassifications (1) (86)  
Amounts reclassified from accumulated other comprehensive loss 63 46  
Net Change in AOCL 62 (40)  
Balance at end of period (17) (79) (39)
Total      
AOCI Attributable to Parent, Net of Tax [Roll Forward]      
Balance at beginning of period (2,813) (2,680) (2,461)
Net Change in AOCL 655 (133) (219)
Balance at end of period $ (2,158) $ (2,813) $ (2,680)
v3.22.0.1
Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Interest expense $ 1,522 $ 1,668 $ 2,021
Other expense, net (62) (76) (19)
Total before tax 2,701 (782) (4,766)
Income tax benefit (668) (450) (503)
Net of tax 2,033 (1,232) $ (5,269)
Decrease (Increase) in Net Income | Interest rate swap      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Interest expense 83 62  
Income tax benefit (20) (16)  
Net of tax 63 46  
Decrease (Increase) in Net Income | Net actuarial loss      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other expense, net 190 203  
Decrease (Increase) in Net Income | Settlement charge      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other expense, net 383    
Decrease (Increase) in Net Income | Prior service cost      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other expense, net 6 7  
Decrease (Increase) in Net Income | Curtailment loss      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Other expense, net   4  
Decrease (Increase) in Net Income | Defined benefit plan      
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Total before tax 579 214  
Income tax benefit (142) (52)  
Net of tax $ 437 $ 162  
v3.22.0.1
Labor Union Contracts (Details) - Unionized employees concentration risk
12 Months Ended
Dec. 31, 2021
Total number of employees  
Labor Union Contracts  
Concentration risk (percent) 21.00%
Workforce subject to collective bargaining arrangements expiring within one year  
Labor Union Contracts  
Concentration risk (percent) 9.00%
v3.22.0.1
Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 24, 2022
Nov. 18, 2021
Aug. 19, 2021
May 20, 2021
Feb. 24, 2021
Nov. 19, 2020
Aug. 20, 2020
May 20, 2020
Feb. 27, 2020
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Subsequent Event [Line Items]                        
Dividend per share (in dollars per share)   $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 0.25 $ 1.00 $ 1.00 $ 1.00
Total amount declared   $ 251 $ 264 $ 272 $ 276 $ 274 $ 274 $ 274 $ 274      
Subsequent Event                        
Subsequent Event [Line Items]                        
Dividend per share (in dollars per share) $ 0.25                      
v3.22.0.1
Label Element Value
Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings [Member]  
Accounting Standards Update [Extensible Enumeration] us-gaap_AccountingStandardsUpdateExtensibleList Accounting Standards Update 2016-02 [Member]