AMPHENOL CORP /DE/, 10-K filed on 2/7/2024
Annual Report
v3.24.0.1
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Jan. 31, 2024
Jun. 30, 2023
Document and Entity Information      
Entity Registrant Name AMPHENOL CORPORATION    
Entity Central Index Key 0000820313    
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Entity File Number 1-10879    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-2785165    
Entity Address, Address Line One 358 Hall Avenue    
Entity Address, City or Town Wallingford    
Entity Address, State or Province CT    
Entity Address, Postal Zip Code 06492    
City Area Code 203    
Local Phone Number 265-8900    
Title of 12(b) Security Class A Common Stock, $0.001 par value    
Trading Symbol APH    
Security Exchange Name NYSE    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
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 Public Float     $ 44,189
Entity Common Stock, Shares Outstanding   599,854,853  
ICFR Auditor Attestation Flag true    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Document Financial Statement Error Correction [Flag] false    
Documents Incorporated by Reference

Portions of the Registrant’s definitive proxy statement, which is expected to be filed within 120 days following the end of the fiscal year covered by this report, are incorporated by reference into Part III hereof.

   
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Audit Information
12 Months Ended
Dec. 31, 2023
Document and Entity Information  
Auditor Name Deloitte & Touche LLP
Auditor Firm ID 34
Auditor Location Hartford, Connecticut
v3.24.0.1
Consolidated Statements of Income - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Consolidated Statements of Income      
Net sales $ 12,554.7 $ 12,623.0 $ 10,876.3
Cost of sales 8,470.6 8,594.8 7,474.5
Gross profit 4,084.1 4,028.2 3,401.8
Acquisition-related expenses 34.6 21.5 70.4
Selling, general and administrative expenses 1,489.9 1,420.9 1,226.3
Operating income 2,559.6 2,585.8 2,105.1
Interest expense (139.5) (128.4) (115.5)
Gain on bargain purchase acquisition 5.4 0.0 0.0
Other income (expense), net 29.3 10.0 (0.4)
Income from continuing operations before income taxes 2,454.8 2,467.4 1,989.2
Provision for income taxes (509.3) (550.6) (409.1)
Net income from continuing operations 1,945.5 1,916.8 1,580.1
Less: Net income from continuing operations attributable to noncontrolling interests (17.5) (14.5) (10.7)
Net income from continuing operations attributable to Amphenol Corporation 1,928.0 1,902.3 1,569.4
Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($3.2) for 2021 0.0 0.0 21.4
Net income attributable to Amphenol Corporation $ 1,928.0 $ 1,902.3 $ 1,590.8
Net income per common share attributable to Amphenol Corporation - Basic, Continuing operations (in dollars per share) $ 3.23 $ 3.19 $ 2.62
Net income per common share attributable to Amphenol Corporation - Basic, Discontinued operations, net of income taxes (in dollars per share) 0 0 0.04
Net income per common share attributable to Amphenol Corporation - Basic (in dollars per share) $ 3.23 $ 3.19 $ 2.66
Weighted average common shares outstanding - Basic (in shares) 596.5 596.2 597.9
Net income per common share attributable to Amphenol Corporation - Diluted, Continuing operations (in dollars per share) $ 3.11 $ 3.06 $ 2.51
Net income per common share attributable to Amphenol Corporation - Diluted, Discontinued operations, net of income taxes (in dollars per share) 0 0 0.03
Net income per common share attributable to Amphenol Corporation - Diluted (in dollars per share) $ 3.11 $ 3.06 $ 2.54
Weighted average common shares outstanding - Diluted (in shares) 620.6 621.0 625.5
Dividends declared per common share (in dollars per share) $ 0.85 $ 0.81 $ 0.635
v3.24.0.1
Consolidated Statements of Income (Parenthetical)
$ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
Consolidated Statements of Income  
Income taxes on income from discontinued operations attributable to Amphenol Corporation $ 3.2
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Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Consolidated Statements of Comprehensive Income      
Net income from continuing operations $ 1,945.5 $ 1,916.8 $ 1,580.1
Add: Income from discontinued operations attributable to Amphenol Corporation, net of income taxes 0.0 0.0 21.4
Net income before allocation to noncontrolling interests 1,945.5 1,916.8 1,601.5
Total other comprehensive (loss) income, net of tax:      
Foreign currency translation adjustments (0.9) (265.2) (64.6)
Unrealized gain (loss) on hedging activities 0.0 (0.1) 0.0
Pension and postretirement benefit plan adjustment 1.1 11.8 57.8
Total other comprehensive income (loss), net of tax 0.2 (253.5) (6.8)
Total comprehensive income 1,945.7 1,663.3 1,594.7
Less: Comprehensive income attributable to noncontrolling interests (16.3) (9.5) (12.3)
Comprehensive income attributable to Amphenol Corporation $ 1,929.4 $ 1,653.8 $ 1,582.4
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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Current Assets:    
Cash and cash equivalents $ 1,475.0 $ 1,373.1
Short-term investments 185.2 61.1
Total cash, cash equivalents and short-term investments 1,660.2 1,434.2
Accounts receivable, less allowance for doubtful accounts of $68.4 and $63.9, respectively 2,618.4 2,631.3
Inventories 2,167.1 2,093.6
Prepaid expenses and other current assets 389.6 320.0
Total current assets 6,835.3 6,479.1
Property, plant and equipment, net 1,314.7 1,204.3
Goodwill 7,092.4 6,446.1
Other intangible assets, net 834.8 734.1
Other long-term assets 449.2 462.6
Total assets 16,526.4 15,326.2
Current Liabilities:    
Accounts payable 1,350.9 1,309.1
Accrued salaries, wages and employee benefits 412.8 416.7
Accrued income taxes 166.0 169.5
Accrued dividends 131.7 124.9
Other accrued expenses 737.5 653.2
Current portion of long-term debt 353.8 2.7
Total current liabilities 3,152.7 2,676.1
Long-term debt, less current portion 3,983.5 4,575.0
Accrued pension and postretirement benefit obligations 143.0 127.9
Deferred income taxes 367.0 409.8
Other long-term liabilities 453.7 443.3
Total Liabilities 8,099.9 8,232.1
Commitments and contingent liabilities (Note 14)
Redeemable noncontrolling interests 30.7 20.6
Equity:    
Class A Common Stock, $0.001 par value, 2,000.0 shares authorized; 600.6 shares issued and 598.9 shares outstanding at December 31, 2023; 596.0 shares issued and 594.8 shares outstanding at December 31, 2022 0.6 0.6
Additional paid-in capital 3,101.2 2,650.4
Retained earnings 5,921.1 4,979.4
Treasury stock, at cost; 1.7 shares and 1.2 shares as of December 31, 2023 and 2022, respectively (142.8) (79.8)
Accumulated other comprehensive loss (533.6) (535.0)
Total stockholders' equity attributable to Amphenol Corporation 8,346.5 7,015.6
Noncontrolling interests 49.3 57.9
Total equity 8,395.8 7,073.5
Total Liabilities, Redeemable Noncontrolling Interests and Equity $ 16,526.4 $ 15,326.2
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Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2023
Dec. 31, 2022
Consolidated Balance Sheets    
Allowance for doubtful accounts $ 68.4 $ 63.9
Class A Common Stock, par value (in dollars per share) $ 0.001 $ 0.001
Class A Common Stock, shares authorized 2,000.0 2,000.0
Class A Common Stock, shares issued 600.6 596.0
Class A Common Stock, shares outstanding 598.9 594.8
Treasury stock, shares 1.7 1.2
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Consolidated Statements of Changes in Equity - USD ($)
shares in Millions, $ in Millions
Common Stock
Treasury Stock
Additional Paid in Capital
Retained Earnings
Accumulated Other Comprehensive Loss
Noncontrolling Interests
Redeemable Non-Controlling Interest [Member]
Total
Balance at beginning of period at Dec. 31, 2020 $ 0.6 $ (111.1) $ 2,068.1 $ 3,705.4 $ (278.1) $ 67.0   $ 5,451.9
Balance (in shares) at Dec. 31, 2020 600.7              
Balance (in shares) at Dec. 31, 2020   (2.0)            
Redeemable noncontrolling interest, balance at beginning of period at Dec. 31, 2020             $ 0.0  
Increase (Decrease) In Equity                
Net income, excluding portion attributable to redeemable noncontrolling interest       1,590.8   10.7   1,601.5
Net income, redeemable non-controlling interest             0.0  
Net income               1,601.5
Other comprehensive income (loss)         (8.4) 1.6   (6.8)
Redeemable noncontrolling interest, other comprehensive income loss net of tax             0.0  
Acquisitions resulting in noncontrolling interest           1.8 19.0 1.8
Purchase of noncontrolling interest     4.1     (15.3)   (11.2)
Distributions to shareholders of noncontrolling interests           (7.7)   (7.7)
Purchase of treasury stock   $ (661.7)           (661.7)
Purchase of treasury stock (in shares)   (9.3)            
Retirement of treasury stock $ 0.0 $ 608.9   (608.9)       0.0
Retirement of treasury stock (in shares) (8.6) 8.6            
Stock options exercised $ 0.0 $ 63.9 253.8 (28.7)       289.0
Stock options exercised (in shares) 8.6 1.1            
Dividends declared       (379.7)       (379.7)
Stock-based compensation expense     83.0         83.0
Balance at end of period at Dec. 31, 2021 $ 0.6 $ (100.0) 2,409.0 4,278.9 (286.5) 58.1   6,360.1
Balance (in shares) at Dec. 31, 2021 600.7              
Balance (in shares) at Dec. 31, 2021   (1.6)            
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2021             19.0  
Increase (Decrease) In Equity                
Net income, excluding portion attributable to redeemable noncontrolling interest       1,902.3   12.9   1,915.2
Net income, redeemable non-controlling interest             1.6  
Net income               1,916.8
Other comprehensive income (loss)         (248.5) (5.0)   (253.5)
Redeemable noncontrolling interest, other comprehensive income loss net of tax             0.0  
Purchase of noncontrolling interest     (1.8)     (2.8)   (4.6)
Distributions to shareholders of noncontrolling interests           (5.3)   (5.3)
Purchase of treasury stock   $ (730.5)           (730.5)
Purchase of treasury stock (in shares)   (9.9)            
Retirement of treasury stock $ 0.0 $ 689.7   (689.7)       0.0
Retirement of treasury stock (in shares) (9.3) 9.3            
Stock options exercised $ 0.0 $ 61.0 153.7 (29.5)       185.2
Stock options exercised (in shares) 4.6 1.0            
Dividends declared       (482.6)       (482.6)
Stock-based compensation expense     89.5         89.5
Balance at end of period at Dec. 31, 2022 $ 0.6 $ (79.8) 2,650.4 4,979.4 (535.0) 57.9   $ 7,073.5
Balance (in shares) at Dec. 31, 2022 596.0             596.0
Balance (in shares) at Dec. 31, 2022   (1.2)           (1.2)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2022             20.6 $ 20.6
Increase (Decrease) In Equity                
Net income, excluding portion attributable to redeemable noncontrolling interest       1,928.0   15.6   1,943.6
Net income, redeemable non-controlling interest             1.9  
Net income               1,945.5
Other comprehensive income (loss)         1.4 (1.2)   0.2
Redeemable noncontrolling interest, other comprehensive income loss net of tax             0.0  
Acquisitions resulting in noncontrolling interest           1.0 8.2 1.0
Distributions to shareholders of noncontrolling interests           (24.0)   (24.0)
Purchase of treasury stock   $ (585.1)           (585.1)
Purchase of treasury stock (in shares)   (7.2)            
Retirement of treasury stock $ 0.0 $ 435.8   (435.8)       0.0
Retirement of treasury stock (in shares) (5.5) 5.5            
Stock options exercised $ 0.0 $ 86.3 351.8 (43.1)       395.0
Stock options exercised (in shares) 10.1 1.2            
Dividends declared       (507.4)       (507.4)
Stock-based compensation expense     99.0         99.0
Balance at end of period at Dec. 31, 2023 $ 0.6 $ (142.8) $ 3,101.2 $ 5,921.1 $ (533.6) $ 49.3   $ 8,395.8
Balance (in shares) at Dec. 31, 2023 600.6             600.6
Balance (in shares) at Dec. 31, 2023   (1.7)           (1.7)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2023             $ 30.7 $ 30.7
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Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares
3 Months Ended 12 Months Ended
Oct. 24, 2023
Oct. 23, 2023
Oct. 25, 2022
Oct. 24, 2022
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Statements of Changes in Equity                                      
Dividends declared per share (in dollars per share) $ 0.22 $ 0.21 $ 0.21 $ 0.20 $ 0.22 $ 0.21 $ 0.21 $ 0.21 $ 0.21 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.145 $ 0.145 $ 0.145 $ 0.85 $ 0.81 $ 0.635
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Consolidated Statements of Cash Flow - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Cash from operating activities:      
Net income from continuing operations $ 1,945.5 $ 1,916.8 $ 1,580.1
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities from continuing operations      
Depreciation and amortization 406.4 392.9 395.6
Stock-based compensation expense 99.0 89.5 83.0
Deferred income tax provision (benefit) (58.8) (4.7) (29.6)
Gain on bargain purchase acquisition (5.4) 0.0 0.0
Net change in operating assets and liabilities, excluding effects of acquisitions:      
Accounts receivable, net 146.4 (273.1) (398.4)
Inventories 71.4 (278.5) (263.0)
Prepaid expenses and other current assets (34.1) 49.7 (20.2)
Accounts payable (34.6) 62.5 131.7
Accrued income taxes 7.7 77.6 (6.9)
Other accrued liabilities (7.0) 168.7 60.4
Accrued pension and postretirement benefits (0.3) (0.4) 5.8
Other long-term assets and liabilities (7.5) (26.4) (14.6)
Net cash provided by operating activities from continuing operations 2,528.7 2,174.6 1,523.9
Net cash provided by operating activities from discontinued operations 0.0 0.0 16.2
Net cash provided by operating activities 2,528.7 2,174.6 1,540.1
Cash from investing activities:      
Capital expenditures (372.8) (383.8) (360.4)
Proceeds from disposals of property, plant and equipment 4.0 5.6 3.7
Purchases of investments (305.7) (309.4) (164.5)
Sales and maturities of investments 246.3 228.2 155.9
Acquisitions, net of cash acquired (970.4) (288.2) (2,225.4)
Other, net 4.9 16.5 (13.7)
Net cash used in investing activities from continuing operations (1,393.7) (731.1) (2,604.4)
Net cash provided by investing activities from discontinued operations 0.0 0.0 716.9
Net cash used in investing activities (1,393.7) (731.1) (1,887.5)
Cash from financing activities:      
Proceeds from issuance of senior notes and other long-term debt 354.9 5.8 752.1
Repayments of senior notes and other long-term debt (15.7) (10.3) (912.6)
Proceeds from short-term borrowings 0.0 44.9 0.0
Repayments of short-term borrowings 0.0 (44.9) 0.0
(Repayments) borrowings under commercial paper programs, net (632.6) (159.3) 796.3
Payment of costs related to debt financing (2.3) (0.4) (9.3)
Payment of deferred purchase price related to acquisitions (1.5) 0.0 (4.1)
Purchase of treasury stock (585.1) (730.5) (661.7)
Proceeds from exercise of stock options 394.5 185.3 288.5
Distributions to and purchases of noncontrolling interests (24.0) (9.9) (18.9)
Dividend payments (500.6) (477.4) (346.7)
Transfers to discontinued operations 0.0 0.0 (28.7)
Net cash used in financing activities from continuing operations (1,012.4) (1,196.7) (145.1)
Net cash used in financing activities from discontinued operations 0.0 0.0 (0.1)
Net cash used in financing activities (1,012.4) (1,196.7) (145.2)
Effect of exchange rate changes on cash and cash equivalents (20.7) (70.8) (12.3)
Net increase (decrease) in cash and cash equivalents 101.9 176.0 (504.9)
Cash and cash equivalents balance, beginning of year 1,373.1 1,197.1 1,702.0
Cash and cash equivalents balance, end of year 1,475.0 1,373.1 1,197.1
Cash paid during the year for:      
Interest 129.2 123.7 111.9
Income taxes, net $ 560.4 $ 477.7 $ 445.6
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Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2023
Summary of Significant Accounting Policies  
Summary of Significant Accounting Policies

Note 1—Summary of Significant Accounting Policies

Business

Amphenol Corporation (together with its subsidiaries, “Amphenol,” the “Company,” “we,” “our,” or “us”) is one of the world’s largest designers, manufacturers and marketers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. The Company sells its products to customers worldwide.

The Company aligns its businesses into the following three reportable business segments:

Harsh Environment Solutions – the Harsh Environment Solutions segment designs, manufactures and markets a broad range of ruggedized interconnect products, including connectors and interconnect systems, printed circuits and printed circuit assemblies and other products for use in the industrial, defense, commercial aerospace, automotive, mobile networks and information technology and data communications end markets.

Communications Solutions – the Communications Solutions segment designs, manufactures and markets a broad range of connector and interconnect systems, including high speed, radio frequency, power, fiber optic and other products, together with antennas, for use in the information technology and data communications, mobile devices, industrial, mobile networks, broadband communications, automotive, commercial aerospace and defense end markets.

Interconnect and Sensor Systems – the Interconnect and Sensor Systems segment designs, manufactures and markets a broad range of sensors, sensor-based systems, connectors and value-add interconnect systems used in the automotive, industrial, information technology and data communications, mobile networks, defense and commercial aerospace end markets.

The Company began reporting under these reportable segments in connection with its Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2022 and for each quarterly and annual period thereafter. All segment information throughout the Consolidated Financial Statements and Notes to Consolidated Financial Statements is presented in accordance with the three reportable business segments. Refer to Note 13 herein for further details related to the Company’s reportable business segments.

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP” or “GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The Company’s management evaluates these significant estimates and assumptions that affect the consolidated financial statements and related disclosures. Estimates used in calculating certain accounts, including but not limited to, the allowance for doubtful accounts, provisions for slow-moving or obsolete inventory, revenue recognition, income taxes and related valuation allowances, goodwill and intangible assets from acquisitions, and pensions, are developed based on historical experience or other assumptions that the Company believes to be reasonable. Actual results could differ from those estimates.

Principles of Consolidation

The consolidated financial statements are prepared in U.S. dollars and include the accounts of the Company and its wholly owned and majority-owned subsidiaries. Intercompany account balances and transactions have been eliminated in consolidation. The results of companies acquired are included in the Consolidated Financial Statements from the

effective date of acquisition. Similarly, the results of companies divested are included in the Consolidated Financial Statements during the period of Amphenol’s ownership through the date of the divestiture.

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and liquid investments with an original maturity of three months or less. The carrying amounts approximate fair values of those instruments, the majority of which are in non-U.S. bank accounts.

Short-term and Long-term Investments

Short-term investments primarily consist of certificates of deposit with original or remaining maturities of twelve months or less. Long-term investments primarily consist of certificates of deposit with original and remaining maturities of more than twelve months. The carrying amounts of these short-term and long-term investments approximate their respective fair values, the vast majority of which are in non-U.S. bank accounts. Short-term investments are presented separately as its own line item on the Consolidated Balance Sheets. Long-term investments are recorded in Other long-term assets on the Consolidated Balance Sheets.

Accounts Receivable

Accounts receivable is stated at net realizable value. The Company regularly reviews accounts receivable balances and adjusts the receivable reserves as necessary whenever events or circumstances indicate the carrying value may not be recoverable. The Company assesses and records an allowance for expected credit losses on accounts receivable.

Inventories

Inventories are stated at the lower of cost or net realizable value. The principal components of cost included in inventories are materials, direct labor and manufacturing overhead. The Company regularly reviews inventory quantities on hand, evaluates the realizability of inventories and adjusts the carrying value as necessary based on forecasted product demand. Provisions for slow-moving and obsolete inventory are made based on historical experience and product demand.

Depreciable Assets

Property, plant and equipment are carried at cost less accumulated depreciation. Depreciation is recorded on a straight-line basis over the respective asset lives determined on a composite basis by asset group or on a specific item basis using the estimated useful lives of such assets, which generally range from 3 to 12 years for machinery and equipment and office equipment and 20 to 40 years for buildings. Leasehold building improvements are amortized over the shorter of the remaining lease term or estimated useful life of such improvements. The Company periodically reviews fixed asset lives. Depreciation expense is included in both Cost of sales and Selling, general and administrative expenses in the Consolidated Statements of Income, dependent upon the specific categorization and use of the underlying asset being depreciated. The Company assesses the impairment of property, plant and equipment subject to depreciation, whenever events or changes in circumstances indicate the carrying value may not be recoverable. Factors the Company considers important, which could trigger an impairment review, include significant changes in the manner of the use of the asset, significant changes in historical trends in operating performance, significant changes in projected operating performance, and significant negative economic trends. There have been no impairments recorded in 2023, 2022 or 2021 as a result of such reviews.

Leases

Amphenol is a lessee of buildings, office space, automobiles and equipment throughout the world, nearly all of which are classified as operating leases expiring at various dates. The Company determines if an arrangement qualifies as a lease at lease inception. Lease right-of-use (“ROU”) assets and lease liabilities for existing operating leases are recognized on the Consolidated Balance Sheets. Operating lease liabilities are recorded based on the present value of the future lease payments over the lease term, assessed as of the commencement date. The Company’s real estate leases, which are comprised primarily of manufacturing facilities, warehouses and sales offices, represent the vast majority of our operating lease liabilities and generally have a lease term between 2 and 12 years. The remaining leases primarily consist of machinery and equipment used in production, office equipment and vehicles, each with various lease terms. The vast majority of our leases are comprised of fixed lease payments, with a small percentage of the Company’s real

estate leases including lease payments tied to a rate or index which may be subject to variability. Certain real estate leases also include executory costs such as common area maintenance (non-lease component), as well as property insurance and property taxes (non-components). We account for the lease and non-lease components as a single lease component for our real estate leases. Lease payments, which may include lease components, non-lease components and non-components, are included in the measurement of the Company’s lease liabilities to the extent that such payments are either fixed amounts or variable amounts based on a rate or index (fixed in substance) as stipulated in the lease contract. Any actual costs in excess of such amounts are expensed as incurred as variable lease cost.

Substantially all of our lease agreements do not specify an implicit borrowing rate, and as such, the Company utilizes its incremental borrowing rate by lease term, in order to calculate the present value of our future lease payments. The discount rate represents a risk-adjusted rate on a secured basis, and is the rate at which the Company would borrow funds to satisfy the scheduled lease liability payment streams commensurate with the lease term. For new or renewed leases, the discount rate is determined using available data at lease commencement and based on the lease term including any reasonably certain renewal periods.

Some of our lease agreements, primarily related to real estate, include options for the Company to either renew (extend) or early terminate the lease. Leases with renewal options allow the Company to extend the lease term typically between 1 and 6 years. Renewal options are reviewed at lease commencement to determine if such options are reasonably certain of being exercised, which could impact the lease term. When determining if a renewal option is reasonably certain of being exercised, the Company considers several factors, including but not limited to, the significance of leasehold improvements incurred on the property, whether the asset is difficult to replace, or specific characteristics unique to the particular lease that would make it reasonably certain that we would exercise such option. In most cases and unless there is an economic, financial or business reason to do so, the Company has concluded that renewal and early termination options are not reasonably certain of being exercised by the Company (and thus not included in our ROU asset and lease liability).

Refer to Note 10 herein for further information related to our lease portfolio.

Goodwill

Goodwill represents the excess purchase cost over the fair value of net assets acquired in business combinations. As a result of the change in the reporting segment structure that went in effect on January 1, 2022, the Company utilized the relative fair value allocation approach to reallocate the historical goodwill associated with the previous Interconnect Products and Assemblies segment, while the historical goodwill associated with the previous Cable Products and Solutions segment was allocated in full to the Communications Solutions segment. The Company concluded that there were no events or changes in circumstances, immediately prior to the reporting unit change, that would indicate that either of the Company’s legacy reporting unit’s carrying amount may be impaired. Therefore, no goodwill impairment assessment was deemed necessary related to the legacy reporting units prior to the change.

The Company continues to perform its evaluation for the impairment of goodwill associated with the Company’s reporting units on an annual basis as of each July 1, or more frequently if an event occurs or circumstances change that would indicate that a reporting unit’s carrying amount may be impaired. The Company reviews its reporting unit structure each year, or more frequently based on changes in our organization. The Company continues to define its reporting units as the three reportable business segments. Prior to the segment structure change and through December 31, 2021, the Company then defined its reporting units as the two reportable business segments “Interconnect Products and Assemblies” and “Cable Products and Solutions”.

In 2023 and 2022, the annual goodwill impairment assessment was performed on the Company’s three reporting units, while in 2021, the Company performed its annual assessment on the historic two reporting units that were then in effect. In the third quarter of 2023 and 2022, as part of its annual evaluations, the Company utilized the option to first assess qualitative factors to determine whether it was necessary to perform the quantitative goodwill impairment assessment. As part of these assessments, the Company reviews qualitative factors, which include, but are not limited to, economic, market and industry conditions, as well as the financial performance of each reporting unit. In accordance with applicable guidance, an entity is not required to calculate the fair value of a reporting unit if, after assessing these qualitative factors, the Company determines that it is more likely than not that the fair value of each of its reporting units is greater than its respective carrying amount. As of July 1, 2023 and 2022, the Company determined that it was more likely than not that the fair value of each of its reporting units exceeded its respective carrying amount and, therefore, a

quantitative assessment was not required. As a result, no goodwill impairment resulted from the assessments as of July 1, 2023 and 2022.

The Company has not recognized any goodwill impairment in 2023, 2022 or 2021 in connection with its annual impairment assessments. Refer to Note 12 herein for further details related to the carrying amount of goodwill by segment.

Intangible Assets

Other than goodwill, intangible assets primarily consist of customer relationships, proprietary technology, acquired backlog and license agreements and are generally amortized over the estimated periods of benefit. The fair value associated with acquired identifiable intangible assets are generally valued based on discounted cash flow analyses, independent appraisals and certain estimates made by management. The Company assesses and reviews its identifiable intangible assets, subject to amortization, for potential impairment whenever events or changes in circumstances indicate the intangible asset’s carrying amount may not be recoverable. Factors the Company considers important, which could trigger an impairment review, include significant changes in the manner of the use of the asset, changes in historical trends in operating performance, significant changes in projected operating performance, anticipated future cash flows and significant negative economic trends. Any indefinite-lived intangible assets that are not subject to amortization, which are comprised of certain trade names, are reviewed at least annually for impairment. In the third quarter of 2023, the Company performed its annual assessment of these identifiable indefinite-lived intangible assets.  Based on its assessment, the Company determined that it was more likely than not that the fair value of the indefinite-lived intangible assets exceeded their respective carrying amounts. There has been no impairment associated with the Company’s intangible assets in 2023, 2022 or 2021 as a result of such reviews.

Acquisitions

The Company accounts for acquisitions using the acquisition method of accounting, which requires that assets acquired and liabilities assumed be recognized at fair value as of the acquisition date. The purchase price of acquisitions is allocated to the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interests assumed based on estimated fair values, and any excess purchase price over the identifiable assets acquired and liabilities assumed is recorded as goodwill. Any subsequent adjustments to the purchase price allocation prior to the completion of the measurement period will be reflected as an adjustment to goodwill in the period in which the adjustments are identified. The Company may use independent valuation specialists to assist in determining the estimated fair values of assets acquired and liabilities assumed, which could require certain significant management assumptions and estimates.

Discontinued Operations and Held for Sale Accounting

The Company reports a component of an entity or group of components of an entity as a discontinued operation and held for sale upon acquisition, if the Company has (i) executed a plan to sell the business as of the acquisition date or (ii) has begun to formulate a plan to sell the business and either currently meets or expects to meet the held for sale criteria within three months. An entity meets the held for sale criteria when (a) management, having the authority to approve the action, commits to a plan to sell the discontinued operation, the plan of which is unlikely to have any significant changes or to be withdrawn, (b) the completed sale is probable within one year, and (c) an active program to locate a buyer has been initiated with the operation actively marketed for sale at a price that is reasonable in relation to its current fair value and for immediate sale in its present condition. The assets acquired and liabilities assumed from an entity that qualifies for held for sale accounting are measured and recorded at fair value less costs to sell, and are recorded as current assets held for sale and current liabilities held for sale when the planned sale is expected to close within one year. The Company separately accounts for the operating results and related cash flows associated with discontinued operations until such operations are divested; such discontinued operations are reported separately from the operating results and related cash flows associated with continuing operations in the accompanying Consolidated Financial Statements. For further information related to the Company’s discontinued operations, refer to Note 11 herein.

Revenue Recognition

The Company recognizes revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for such goods or services. The vast majority of our sales are recognized when products are shipped from our facilities or delivered to our customers, depending on the respective contractual terms. A nominal portion of our contracts have revenue recognized over time as

control of the goods transfers, rather than when the goods are delivered, and title, risk and reward of ownership are passed to the customer, since they have no alternative use and for which the Company has an enforceable right to payment, including a reasonable profit margin, from the customer for performance completed to date. Refer to Note 13 herein for further discussion regarding the Company’s disaggregation of net sales.

The Company’s primary source of revenues consist of product sales to either end customers and their appointed contract manufacturers (including original equipment manufacturers) or to distributors, and the vast majority of our sales are recognized at a point-in-time under the core principle of recognizing revenue when control transfers to the customer. Revenues are derived from contracts with customers, which in most cases are customer purchase orders that may be governed by master sales agreements. For each contract, the promise to transfer the control of the products, each of which is individually distinct, is considered to be the identified performance obligation. As part of the consideration promised in each contract, the Company evaluates the customer’s credit risk. Our contracts do not have any significant financing components, as payment terms are generally due net 30 to 120 days after delivery. Although products are almost always sold at fixed prices, in determining the transaction price, we evaluate whether the price is subject to refund (due to returns) or adjustment (due to volume discounts, rebates, or price concessions) to determine the net consideration we expect to be entitled to. We allocate the transaction price to each distinct product based on its relative standalone selling price. Taxes assessed by governmental authorities and collected from the customer, including but not limited to sales and use taxes and value-added taxes, are not included in the transaction price.

The vast majority of our sales are recognized at a point-in-time under the core principle of recognizing revenue when control transfers to the customer. With limited exceptions, the Company recognizes revenue at the point in time when we ship or deliver the product from our manufacturing facility to our customer, when our customer accepts and has legal title of the goods, and where the Company has a present right to payment for such goods. Based on the respective contract terms, most of our contracts’ revenues are recognized either (i) upon shipment based on free on board (“FOB”) shipping point or (ii) when the product arrives at its destination. For the years ended December 31, 2023, 2022 and 2021, less than 5% of our net sales were recognized over time, where the associated contracts relate to the sale of goods with no alternative use as they are only sold to a single customer and whose underlying contract terms provide the Company with an enforceable right to payment, including a reasonable profit margin, for performance completed to date, in the event of customer termination. For the contracts recognized over time, we typically record revenue using the input method, based on the materials and labor costs incurred to date relative to the contract’s total estimated costs. This method reasonably depicts when and as control of the goods transfers to the customer, since it measures our progress in producing the goods, which is generally commensurate with this transfer of control. Since we typically invoice our customers at the same time that we satisfy our performance obligations, contract assets and contract liabilities related to our contracts with customers recorded in the Consolidated Balance Sheets were not material as of December 31, 2023 and 2022.

The Company receives customer orders negotiated with multiple delivery dates that may extend across more than one reporting period until the contract is fulfilled, the end of the order period is reached, or a pre-determined maximum order value has been reached. Orders typically fluctuate from quarter to quarter based on customer demand and general business conditions. It is generally expected that a substantial portion of our remaining performance obligations will be fulfilled within three months. Nearly all of our performance obligations are fulfilled within one year. Since our performance obligations are part of contracts that generally have original durations of one year or less, we have not disclosed the aggregate amount of transaction prices associated with unsatisfied or partially unsatisfied performance obligations as of December 31, 2023 and 2022.

Sales to Distributors and Resellers

Sales to certain distributors and resellers are made under terms allowing certain price adjustments and limited rights of return of the Company’s products held in their inventory or upon sale to their end customers. The Company maintains a reserve for unprocessed and estimated future price adjustment claims and returns as a refund liability. The reserve is recorded as a reduction to revenue in the same period that the related revenue is recorded and is calculated based on an analysis of historical claims and returns over a period of time to appropriately account for current pricing and business trends. Similarly, sales returns and allowances are recorded based on historical return rates, as a reduction to revenue with a corresponding reduction to cost of sales for the estimated cost of inventory that is expected to be returned. These reserves were not material to the Consolidated Balance Sheets as of December 31, 2023 and 2022.

Warranty

Standard product warranty coverage, which provides assurance that our products will conform to the contractually agreed-upon specifications for a limited period from the date of shipment, is typically offered, while extended or separately priced warranty coverage is typically not offered. The warranty claim is generally limited to a credit equal to the purchase price or a promise to repair or replace the product for a specified period of time at no additional charge. We estimate our warranty liability based on historical experience, product history, and current trends, and record warranty expense in Cost of sales in the Consolidated Statements of Income. Warranty liabilities and related warranty expense have not been and were not material in the accompanying Consolidated Financial Statements as of and for the years ended December 31, 2023, 2022 and 2021.

Shipping and Handling Costs

The Company accounts for shipping and handling activities related to contracts with customers as a cost to fulfill our promise to transfer control of the related product, including any such costs incurred after the customer has obtained control of the goods. Shipping and handling costs are generally charged to and paid by the majority of our customers as part of the contract. For a nominal portion of our customer contracts, primarily for certain customers in the broadband communications market (a market primarily in the Communications Solutions segment), such costs are not separately charged to the customers. Shipping and handling costs are included in Cost of sales in the accompanying Consolidated Statements of Income.

Contract Assets and Contract Liabilities

The Company records contract assets or contract liabilities depending on the timing of revenue recognition, billings and cash collections on a contract-by-contract basis. Contract assets represent unbilled receivables, which generally arise when revenue recognized over time exceed amounts billed to customers. Contract liabilities represent billings or advanced consideration received from customers in excess of revenue recognized to date. As the Company’s performance obligations are typically less than one year, these amounts are generally recorded as current in the accompanying Consolidated Balance Sheets within Prepaid expenses and other current assets or Other accrued expenses as of December 31, 2023 and 2022. Contract assets and contract liabilities recorded in the Consolidated Balance Sheets were not material as of December 31, 2023 and 2022.

Contract Costs

The Company’s policy is to capitalize any incremental costs incurred to obtain a customer contract, only to the extent that such costs are explicitly chargeable to the customer and the benefit associated with the costs is expected to be longer than one year. Otherwise, such costs are expensed as incurred and recorded within Selling, general and administrative expenses in the accompanying Consolidated Statements of Income. Incremental costs to fulfill customer orders, which are mostly comprised of pre-production and set-up costs, are generally capitalized to the extent such costs are contractually guaranteed to be reimbursed by the customer. Otherwise, such costs are expensed as incurred. Capitalized contract costs to obtain a contract or to fulfill a contract that are not accounted for under other existing accounting standards are recorded as either other current or long-term assets on the accompanying Consolidated Balance Sheets, depending on the timing of when the Company expects to recognize the expense, and are generally amortized consistent with the timing of when transfer of control of the related goods occurs. Such capitalized contract costs were not material as of December 31, 2023 and 2022, and the related amortization expense was not material for the years ended December 31, 2023, 2022 and 2021.

Retirement Pension Plans

Costs for retirement pension plans include current service costs and amortization of prior service costs over the average working life expectancy. It is the Company’s policy to fund current pension costs taking into consideration minimum funding requirements and maximum tax deductible limitations. The expense of retiree medical benefit programs is recognized during the employees’ service with the Company. The recognition of expense and the related obligation for retirement pension plans and medical benefit programs is significantly impacted by estimates and assumptions made by management such as discount rates used to value certain liabilities, expected return on assets, mortality projections and future health care costs. The Company uses third-party specialists such as actuaries and investment advisors to assist management in appropriately measuring the expense and obligations associated with pension and other postretirement plan benefits.

Stock-Based Compensation

The Company accounts for its stock option, restricted share and phantom stock awards based on the fair value of the award at the date of grant and recognizes compensation expense over the service period that the awards are expected to vest. The Company recognizes expense for stock-based compensation with graded vesting on a straight-line basis over the vesting period of the entire award. Stock-based compensation expense includes the estimated effects of forfeitures, which are adjusted over the requisite service period to the extent actual forfeitures differ or are expected to differ from such estimates.  Changes in estimated forfeitures are recognized in the period of change and impact the amount of expense to be recognized in future periods. The expense incurred for stock-based compensation plans is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Income.

Income Taxes

Deferred income taxes are provided for revenue and expenses which are recognized in different periods for income tax and financial statement reporting purposes.  The Company recognizes the effects of changes in tax laws and rates on deferred income taxes in the period in which legislation is enacted.  Deferred income taxes are provided on undistributed earnings of foreign subsidiaries in the period in which the Company determines it no longer intends to permanently reinvest such earnings outside the United States.  As of December 31, 2023, the Company has not provided for deferred income taxes on undistributed foreign earnings of approximately $1,350 related to certain geographies, as it is the Company’s intention to permanently reinvest such earnings outside the United States. It is impracticable to calculate the amount of taxes that would be payable if these undistributed foreign earnings were to be repatriated. In addition, the Company remains indefinitely reinvested with respect to its financial statement basis in excess of tax basis of its investments in foreign subsidiaries. It is not practicable to determine the deferred tax liability with respect to such basis differences. Deferred tax assets are regularly assessed for recoverability based on both historical and anticipated earnings levels and a valuation allowance is recorded when it is more likely than not that these amounts will not be recovered.

The tax effects of an uncertain tax position taken or expected to be taken in income tax returns are recognized only if it is “more likely than not” to be sustained on examination by the taxing authorities, based on its technical merits as of the reporting date.  The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.  The Company includes estimated interest and penalties related to unrecognized tax benefits in the provision for income taxes.

As a result of the U.S. Tax Cuts and Jobs Act of 2017 (the “Tax Act”), the global intangible low-taxed income (“GILTI”) provision imposed a tax on certain earnings of foreign subsidiaries. The Company elected an accounting policy to account for GILTI as a period cost. The U.S. Treasury Department has issued final interpretive guidance relating to certain provisions of the Tax Act and proposed additional guidance related to the same provisions. The Company will account for the impact of additional guidance in the period in which any new guidance is released, if appropriate.

Foreign Currency Translation

The financial position and results of operations of the Company’s foreign subsidiaries are measured using local currency as the functional currency. Assets and liabilities of such subsidiaries have been translated into U.S. dollars at current exchange rates and related revenues and expenses have been translated at weighted average exchange rates. The aggregate effect of translation adjustments is included as a component of Accumulated other comprehensive income (loss) within equity. Transaction gains and losses related to operating assets and liabilities are included in Cost of sales in the accompanying Consolidated Statements of Income.

Research and Development

Costs incurred in connection with the development of new products and applications are expensed as incurred. Research and development expenses for the creation of new and improved products and processes were $342.2, $323.6, and $317.7, for the years 2023, 2022 and 2021, respectively, and are included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Income.

Environmental Obligations

The Company recognizes the potential cost for environmental remediation activities when site assessments are made, remediation efforts are probable and related amounts can be reasonably estimated. The Company assesses its environmental liabilities as necessary and appropriate through regular reviews of contractual commitments, site assessments, feasibility studies and formal remedial design and action plans.

Net Income per Common Share

Basic earnings per common share is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of outstanding common shares, including dilutive common shares, the dilutive effect of which relates to stock options. Diluted earnings per common share assumes the exercise of outstanding dilutive stock options using the treasury stock method. Refer to Note 8 of the Notes to Consolidated Financial Statements for a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding, used in the calculation of earnings per share (basic and diluted) from continuing operations, discontinued operations and for total Amphenol Corporation.

Treasury Stock

Treasury stock purchases are recorded at cost. Any issuances from treasury shares are recorded using the weighted average cost method.

Noncontrolling Interests

The Company presents noncontrolling interests in consolidated entities as its own caption within equity, separate from the Company’s equity attributable to Amphenol Corporation stockholders, to the extent that such noncontrolling interests do not have redemption features that are not solely within the control of the Company, as discussed below. Net income from continuing operations attributable to noncontrolling interests is classified below net income from continuing operations. Earnings per share is determined after the impact of the noncontrolling interests’ share in net income of the Company.

Redeemable Noncontrolling Interests

The Company reports noncontrolling interests in the mezzanine (“temporary equity”) section, between liabilities and equity, of the Consolidated Balance Sheets, to the extent that such noncontrolling interests have redemption features, such as a put option, that is redeemable at a fixed or determinable price on a fixed or determinable date at the option of the holder, or upon the occurrence of an event that is not solely within the control of the Company. Due to its redeemable features that are outside the control of the Company, the redeemable noncontrolling interest is and will continue to be reported in the mezzanine section in the Consolidated Balance Sheets for as long as the put option is exercisable by the option holder. The carrying amount of the redeemable noncontrolling interest, initially valued at fair value as part of acquisition accounting, is adjusted each reporting period to equal the greater of the (i) redemption value or (ii) carrying value of the noncontrolling interest, adjusted each reporting period for income or loss attributable to the noncontrolling interest and any distributions made to date. The redemption value is generally calculated based on a multiple of earnings. Any measurement adjustments, if applicable, to the redeemable noncontrolling interest are recognized in Additional paid-in capital in the Consolidated Balance Sheets. Refer to Note 5 herein for further details related to the redeemable noncontrolling interests.

Derivative Financial Instruments

The Company records each of its derivatives at fair value within the accompanying Consolidated Balance Sheets, and the respective accounting treatment for each derivative is based on its hedge designation. We do not enter into derivative financial instruments for trading or speculative purposes, and our derivative financial instruments are with large financial institutions with strong credit ratings. As of December 31, 2023, the Company does not have any significant concentration of exposure with any one counterparty. Refer to Note 5 herein for further discussion of our derivative financial instruments.

Cash Flow Hedges

From time to time, the Company utilizes derivative financial instruments in the management of interest rate and foreign currency exposures. Such cash flow hedges include foreign exchange forward contracts to hedge exposure to foreign currency exchange rate fluctuations for certain transactions denominated in foreign currencies. As of December 31, 2023 and 2022, there were no outstanding cash flow hedge contracts. Gains and losses on derivatives designated as cash flow hedges resulting from changes in fair value are recorded in Accumulated other comprehensive income (loss), and subsequently reflected in Cost of sales in the Consolidated Statements of Income in a manner that matches the timing of the actual income or expense of such instruments with that of the hedged transaction. Any ineffective portion of the change in the fair value of designated hedging instruments is included in the Consolidated Statements of Income. Cash flows associated with cash flow hedges are classified and reported consistent with the cash flows associated with the underlying hedged item.

Net Investment Hedges

The Company is exposed to variability in the U.S. dollar equivalent of the net investments in our foreign subsidiaries and, by extension, the U.S. dollar equivalent of any foreign earnings repatriated to the U.S. due to potential changes in foreign currency exchange rates. As a result, from time to time, the Company enters into foreign exchange forward contracts to hedge the net investments in certain foreign subsidiaries from which we expect to repatriate earnings to the United States. As of December 31, 2023, there were no outstanding net investment hedge contracts. As of December 31, 2023 and 2022, the aggregate notional value of our outstanding net investment hedge contracts was nil and $75, respectively. For such instruments that are designated and qualify as a net investment hedge, the effective portion of the hedging instrument’s gain or loss is reported as a component of other comprehensive income (loss) and recorded in Accumulated other comprehensive income (loss) on the Consolidated Balance Sheets. The gain or loss will be subsequently reclassified into net earnings if the net investment in the hedged foreign operation is either sold or substantially liquidated. Cash flows associated with net investment hedges are classified and reported within investing activities in the Consolidated Statements of Cash Flow. Cash flows associated with our net investment hedges were not material for the years ended December 31, 2023, 2022 and 2021.

Non-Designated Derivatives

The Company enters into certain derivative financial instruments, from time to time, that are not designated as hedging instruments. The Company enters into such foreign exchange forward contracts to reduce and minimize the impact of foreign currency fluctuations arising from the change in fair value of certain foreign currency denominated assets and liabilities. These non-designated derivative instruments are adjusted to fair value each period through earnings, within the financial statement line item to which the derivative instrument relates. For each of the three years ended December 31, 2023, such non-designated derivative instruments, including their impact to the Consolidated Statements of Income, were not material to the Company. Cash flows associated with non-designated hedges are classified and reported consistent with the cash flows associated with the underlying hedged item.

Recent Accounting Pronouncements

In October 2021, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”), which amends ASC 805 by requiring acquiring entities to apply ASC 606 to recognize and measure contract assets and contract liabilities in a business combination. The intent of ASU 2021-08 is to address diversity in practice and improve comparability for both the recognition and measurement of acquired revenue contracts by providing (i) guidance on how to determine whether a contract liability is recognized by the acquirer in a business combination and (ii) specific guidance on how to recognize and measure contract assets and contract liabilities from revenue contracts in a business combination. ASU 2021-08 and its amendments were effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2022, and the amendments should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company adopted ASU 2021-08 on January 1, 2023. ASU 2021-08 did not have a material impact on our acquisitions during 2023, and its impact on our financial condition, results of operations or cash flows going forward will be dependent upon the nature of any future business combinations.

In September 2022, the FASB issued ASU No. 2022-04, Liabilities – Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations (“ASU 2022-04”), which amends ASC 405 by requiring

entities to provide more detailed disclosures regarding supplier finance programs used in connection with the purchase of goods and services. The intent of ASU 2022-04 is to enhance transparency of these programs by requiring entities to disclose (i) the key terms of the program(s), including the payment terms and assets pledged as security or other forms of guarantees, (ii) the amount of obligations outstanding at the end of the reporting period and a description of where those obligations are presented on the balance sheet, and (iii) annual rollforward information of the activity of such obligations during the reporting period. ASU 2022-04 is effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2022, with the exception of the disclosure of rollforward information, which will be effective for fiscal years beginning after December 15, 2023. Disclosure requirements under ASU 2022-04 must be applied retrospectively covering each period for which a balance sheet is presented, with the exception of the rollforward information which shall be applied prospectively. The Company completed its evaluation of ASU 2022-04, which did not have a material impact on its consolidated financial statements and disclosures.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which amends ASC 280. The intent of ASU 2023-07 is to improve the disclosures around a public entity’s reportable segments and address requests from investors for additional, more detailed information about a reportable segment’s expenses, by requiring entities to disclose on an annual and interim basis: (i) significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and included within each reported measure of segment profit or loss and (ii) an amount for other segment items by reportable segment and a description of its composition, which represents the difference between segment revenue less segment expenses disclosed under the significant expense principle and each reported measure of segment profit or loss. Furthermore, entities will be required to: (i) provide all annual disclosures about a segment’s profit or loss and assets currently required under ASC 280 on an interim basis as well, (ii) clarify that an entity is not precluded from reporting additional measures of a segment’s profit or loss that are used by the CODM in assessing segment performance and deciding how to allocate resources, and (iii) disclose the title and position of the CODM and an explanation of how the CODM uses the reported measures of segment profit or loss in assessing segment performance and deciding how to allocate resources. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the potential impact of ASU 2023-07 on its consolidated financial statements and disclosures.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). The intent of ASU 2023-09 is to improve the disclosures around a company’s rate reconciliation information and certain types of income taxes companies are required to pay. Specifically, these new disclosure requirements will provide more transparency regarding income taxes companies pay in the United States and other countries, along with more disclosure around a company’s rate reconciliation, among other new disclosure requirements, such that users of financial statements can get better information about how the operations, related tax risks, tax planning and operational opportunities of companies affect their effective tax rates and future cash flow prospects. ASU 2023-09 is effective for annual fiscal years beginning after December 15, 2024, with early adoption permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments under ASU 2023-09 should be applied on a prospective basis, although retrospective application is permitted. The Company is currently evaluating the potential impact of ASU 2023-09 on its consolidated financial statements and disclosures.

v3.24.0.1
Inventories
12 Months Ended
Dec. 31, 2023
Inventories  
Inventories

Note 2—Inventories

The components of Inventories are comprised of:

December 31, 

2023

    

2022

Raw materials and supplies

$

964.7

$

929.9

Work in process

 

562.3

 

556.0

Finished goods

 

640.1

 

607.7

$

2,167.1

$

2,093.6

v3.24.0.1
Property, Plant and Equipment, Net
12 Months Ended
Dec. 31, 2023
Property, Plant, and Equipment, Net  
Property, Plant and Equipment, Net

Note 3—Property, Plant and Equipment, Net

The components of Property, plant and equipment, net are summarized as follows:

December 31, 

2023

    

2022

Land and improvements

$

33.9

$

30.2

Buildings and improvements

 

483.9

 

428.9

Machinery and equipment

 

2,628.4

 

2,377.3

Office equipment and other

 

430.3

 

387.2

 

3,576.5

 

3,223.6

Accumulated depreciation

 

(2,261.8)

 

(2,019.3)

$

1,314.7

$

1,204.3

Depreciation expense for the years ended December 31, 2023, 2022 and 2021 was $313.7, $306.1 and $302.9, respectively.

v3.24.0.1
Long-Term Debt
12 Months Ended
Dec. 31, 2023
Long-Term Debt  
Long-Term Debt

Note 4—Long-Term Debt

Long-term debt consists of the following:

December 31, 2023

December 31, 2022

 

 

    

Carrying

    

Approximate

    

Carrying

    

Approximate

 

 

Maturity

Amount

Fair Value (1)

Amount

Fair Value (1)

Revolving Credit Facility

 

November 2026

    

$

$

$

$

U.S. Commercial Paper Program (less unamortized discount of nil and $1.0 at December 31, 2023 and 2022, respectively)

 

November 2026

    

632.8

632.8

Euro Commercial Paper Program

 

November 2026

    

Term Loan Credit Facility

 

April 2024

    

3.20% Senior Notes (less unamortized discount of nil and $0.1 at December 31, 2023 and 2022, respectively)

 

April 2024

    

350.0

348.4

349.9

342.7

2.050% Senior Notes (less unamortized discount of $0.2 and $0.3 at December 31, 2023 and 2022, respectively)

 

March 2025

    

399.8

386.8

399.7

376.3

4.750% Senior Notes (less unamortized discount of $0.9 at December 31, 2023)

March 2026

349.1

350.6

0.750% Euro Senior Notes (less unamortized discount of $0.9 and $1.3 at December 31, 2023 and 2022, respectively)

 

May 2026

    

551.7

523.4

533.4

491.7

2.000% Euro Senior Notes (less unamortized discount of $1.3 and $1.5 at December 31, 2023 and 2022, respectively)

 

October 2028

    

551.4

531.4

533.2

491.5

4.350% Senior Notes (less unamortized discount of $0.2 and $0.3 at December 31, 2023 and 2022, respectively)

 

June 2029

    

499.8

497.2

499.7

477.7

2.800% Senior Notes (less unamortized discount of $0.4 and $0.5 at December 31, 2023 and 2022, respectively)

 

February 2030

    

899.6

817.6

899.5

769.2

2.200% Senior Notes (less unamortized discount of $2.1 and $2.4 at December 31, 2023 and 2022, respectively)

 

September 2031

    

747.9

629.9

747.6

596.2

Other debt

 

2024-2031

    

9.5

9.5

 

6.9

6.9

Less: unamortized deferred debt issuance costs

 

    

(21.5)

(25.0)

Total debt

 

    

4,337.3

4,094.8

 

4,577.7

 

4,185.0

Less: current portion

 

    

353.8

 

352.2

 

2.7

 

2.7

Total long-term debt

 

    

$

3,983.5

$

3,742.6

$

4,575.0

$

4,182.3

(1)The fair value of each series of the Company’s Senior Notes is based on recent bid prices in an active market and is therefore classified as Level 1 in the fair value hierarchy (Note 5).

Revolving Credit Facility

The Company has an amended and restated $2,500.0 unsecured revolving credit facility (the “Revolving Credit Facility”). The Revolving Credit Facility matures in November 2026 and gives the Company the ability to borrow, in various currencies, at a spread that varies, based on the Company’s debt rating, over certain currency-specific benchmark rates, which benchmark rates in the case of U.S. dollar borrowings are either the base rate or the adjusted term Secured

Overnight Financing Rate (“SOFR”). The Company may utilize the Revolving Credit Facility for general corporate purposes. As of December 31, 2023 and 2022, there were no outstanding borrowings under the Revolving Credit Facility. The carrying value of any borrowings under the Revolving Credit Facility would approximate their fair value, primarily due to their market interest rates, and would be classified as Level 2 in the fair value hierarchy (Note 5). Any outstanding borrowings under the Revolving Credit Facility are classified as long-term debt in the accompanying Consolidated Balance Sheets. The Revolving Credit Facility requires payment of certain annual agency and commitment fees and requires that the Company satisfy certain financial covenants.

Term Loan Credit Facility

On April 19, 2022, the Company entered into a two-year, $750.0 unsecured delayed draw term loan credit agreement (the “Term Loan”), which is scheduled to mature on April 19, 2024. The Term Loan was undrawn at closing and may be drawn on up to five occasions over the life of the facility. The Term Loan may be repaid at any time without premium or penalty, and, once repaid, cannot be reborrowed. If drawn upon, the proceeds from the Term Loan are expected to be used for general corporate purposes. Interest rates under the Term Loan are based on a spread over either the base rate or the adjusted term SOFR, which spread varies based on the Company’s debt rating. The carrying value of any borrowings under the Term Loan would approximate their fair value, primarily due to its market interest rates, and would be classified as Level 2 in the fair value hierarchy (Note 5). As of December 31, 2023, the Company had not yet drawn upon the Term Loan, and as such, there were no outstanding borrowings under the Term Loan. The Term Loan requires payment of certain commitment fees and requires that the Company satisfy certain financial covenants, which financial covenants are the same as those under the Revolving Credit Facility.

Commercial Paper Programs

The Company has a commercial paper program (the “U.S. Commercial Paper Program”) pursuant to which the Company may issue short-term unsecured commercial paper notes (the “USCP Notes” or “U.S. Commercial Paper”) in one or more private placements in the United States. The maturities of the USCP Notes vary but may not exceed 397 days from the date of issue. The USCP Notes are sold under customary terms in the commercial paper market and may be issued at par or a discount therefrom, and bear varying interest rates on a fixed or floating basis. The maximum aggregate principal amount outstanding of USCP Notes at any time is $2,500.0. The Company utilizes borrowings under the U.S. Commercial Paper Program for general corporate purposes, which, in recent years, have included fully or partially funding acquisitions as discussed in Note 11 herein, as well as repaying certain outstanding senior notes as was the case in 2021 with (i) the third quarter 2021 redemption of its unsecured 3.125% Senior Notes (the “2021 Senior Notes”), of which $227.7 aggregate principal amount was then outstanding, and (ii) the fourth quarter 2021 redemption of its unsecured 4.00% Senior Notes (the “2022 Senior Notes”), of which $295.0 aggregate principal amount was then outstanding. As of December 31, 2022, the amount of USCP Notes outstanding was $632.8, with a weighted average interest rate of 4.69%. In the first quarter of 2023, the Company used net proceeds from the 2026 Senior Notes (as defined below) to repay certain outstanding borrowings under the U.S. Commercial Paper Program. The Company borrowed under the U.S. Commercial Paper Program throughout much of 2023, the proceeds of which were used for general corporate purposes. During the fourth quarter of 2023, the Company repaid all of its USCP Notes then outstanding, and, as of December 31, 2023, there were no USCP Notes outstanding.

The Company and one of its wholly owned European subsidiaries (the “Euro Issuer”) also have a commercial paper program (the “Euro Commercial Paper Program” and, together with the U.S. Commercial Paper Program, the “Commercial Paper Programs”), pursuant to which the Euro Issuer may issue short-term unsecured commercial paper notes (the “ECP Notes” and, together with the USCP Notes, the “Commercial Paper”), which are guaranteed by the Company and are to be issued outside of the United States.  The maturities of the ECP Notes will vary but may not exceed 183 days from the date of issue.  The ECP Notes are sold under customary terms in the commercial paper market and may be issued at par or a discount therefrom or a premium thereto and bear varying interest rates on a fixed or floating basis.  The ECP Notes may be issued in Euros, Sterling, U.S. dollars or other currencies. The maximum aggregate principal amount outstanding of ECP Notes at any time is $2,000.0. The Company utilizes borrowings under the Euro Commercial Paper Program for general corporate purposes, which may include, for example, fully or partially funding acquisitions. In the first quarter of 2023, the Company used borrowings under its Euro Commercial Paper Program, along with cash on hand, to fund an acquisition. These borrowings under the Euro Commercial Paper Program were repaid in their entirety by the end of the first quarter of 2023. As of December 31, 2023 and 2022, there were no ECP Notes outstanding.

Amounts available under the Commercial Paper Programs may be borrowed, repaid and re-borrowed from time to time. In conjunction with the Revolving Credit Facility, as of December 31, 2023, the authorization from the Company’s Board of Directors (the “Board”) limits the maximum principal amount outstanding of USCP Notes, ECP Notes, and any other commercial paper or similar programs, along with outstanding amounts under the Revolving Credit Facility, at any time to $2,500.0 in the aggregate.  The Commercial Paper Programs are rated A-2 by Standard & Poor’s and P-2 by Moody’s and, based on the Board’s authorization described above, are currently backstopped by the Revolving Credit Facility, as amounts undrawn under the Company’s Revolving Credit Facility are available to repay Commercial Paper, if necessary.  Net proceeds of the issuances of Commercial Paper are expected to be used for general corporate purposes.  Any outstanding Commercial Paper is classified as long-term debt in the accompanying Consolidated Balance Sheets since the Company has the intent and ability to refinance the Commercial Paper on a long-term basis using the Company’s Revolving Credit Facility. The carrying value of Commercial Paper approximates its fair value, primarily due to its market interest rates, and is classified as Level 2 in the fair value hierarchy (Note 5).

U.S. Senior Notes

On March 30, 2023, the Company issued $350.0 principal amount of unsecured 4.750% Senior Notes due March 30, 2026 at 99.658% of face value (the “2026 Senior Notes”). The 2026 Senior Notes are unsecured and rank equally in right of payment with the Company’s and the Euro Issuer’s other unsecured senior indebtedness. Interest on the 2026 Senior Notes is payable semiannually on March 30 and September 30 of each year, commencing on September 30, 2023.  The Company may redeem, from time to time at its option, some or all of the 2026 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, plus a make-whole premium.  The Company used the net proceeds from the 2026 Senior Notes to repay certain outstanding borrowings under the U.S. Commercial Paper Program.

On September 14, 2021, the Company issued $750.0 principal amount of unsecured 2.200% Senior Notes due September 15, 2031 at 99.634% of face value (the “2031 Senior Notes”). The 2031 Senior Notes are unsecured and rank equally in right of payment with the Company’s and the Euro Issuer’s other unsecured senior indebtedness. Interest on the 2031 Senior Notes is payable semiannually on March 15 and September 15 of each year, commencing on March 15, 2022. Prior to June 15, 2031, the Company may, at its option, redeem some or all of the 2031 Senior Notes at any time by paying the redemption price (which includes a make-whole premium), plus accrued and unpaid interest, if any, to, but not including, the date of redemption. If redeemed on or after June 15, 2031, the Company may, at its option, redeem some or all of the 2031 Senior Notes at any time by paying the redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but not including, the date of redemption. The Company used the net proceeds from the 2031 Senior Notes to repay certain outstanding borrowings under the U.S. Commercial Paper Program.

All of the Company’s outstanding senior notes in the United States (the “U.S. Senior Notes”) are unsecured and rank equally in right of payment with the Company’s and the Euro Issuer’s other unsecured senior indebtedness. Interest on each series of U.S. Senior Notes is payable semiannually. The Company may, at its option, redeem some or all of any series of U.S. Senior Notes at any time, subject to certain terms and conditions, which include paying 100% of the principal amount, plus accrued and unpaid interest, if any, to the date of redemption, and, with certain exceptions, a make-whole premium.

Euro Senior Notes

The Euro Issuer has two outstanding unsecured senior notes issued in Europe. The Euro Issuer has €500.0 (approximately $545.4 at date of issuance) principal amount of unsecured 0.750% Senior Notes due May 4, 2026 at 99.563% of face value (the “2026 Euro Notes” or the “0.750% Euro Senior Notes”), the net proceeds of which were used to repay amounts outstanding under the then existing revolving credit facility. The Euro Issuer also has €500.0 (approximately $574.6 at date of issuance) principal amount of unsecured 2.000% Senior Notes due October 8, 2028 at 99.498% of face value (the “2028 Euro Notes” or the “2.000% Euro Senior Notes”, together with the 2026 Euro Notes, the “Euro Notes”, and the Euro Notes, together with the U.S. Senior Notes, the “Senior Notes”), the net proceeds of which were used to repay a portion of the outstanding amounts under our Commercial Paper Programs, with the remainder of the net proceeds being used for general corporate purposes. The Euro Notes are unsecured and rank equally in right of payment with the Company’s and the Euro Issuer’s other unsecured senior indebtedness and are fully and unconditionally guaranteed on a senior unsecured basis by the Company. Interest on the 2026 Euro Notes and 2028 Euro Notes is payable annually on May 4 and October 8 of each year, respectively. The Company may, at its option, redeem some or all of either series of Euro Notes at any time, subject to certain terms and conditions, which include

paying 100% of the principal amount, plus accrued and unpaid interest, if any, to, but not including, the date of redemption, and, with certain exceptions, a make-whole premium.

The fair value of each series of Senior Notes is based on recent bid prices in an active market and is therefore classified as Level 1 in the fair value hierarchy (Note 5). The Senior Notes impose certain obligations on the Company and prohibit various actions by the Company unless it satisfies certain financial requirements.

The maturity of the Company’s debt (exclusive of unamortized deferred debt issuance costs as of December 31, 2023) over each of the next five years ending December 31 and thereafter, is as follows:

2024

$

354.0

 

2025

 

402.2

2026

 

903.0

2027

 

0.6

2028

 

551.7

Thereafter

 

2,147.3

$

4,358.8

As of December 31, 2023, the Company had approximately $55.4 of uncommitted standby letter of credit facilities, of which $40.9 were issued.

v3.24.0.1
Fair Value Measurements
12 Months Ended
Dec. 31, 2023
Fair Value Measurements  
Fair Value Measurements

Note 5—Fair Value Measurements

Fair value is determined based on the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants. These requirements establish market or observable inputs as the preferred source of values. Assumptions based on hypothetical transactions are used in the absence of market inputs. The Company does not have any non-financial instruments accounted for at fair value on a recurring basis.

The valuation techniques required are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs create the following fair value hierarchy:

Level 1         Quoted prices for identical instruments in active markets.

Level 2         Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

Level 3         Significant inputs to the valuation model are unobservable.

The Company’s assets and liabilities currently subject to such standards with fair value disclosure requirements are primarily (i) debt instruments, (ii) pension plan assets, and (iii) assets acquired and liabilities and noncontrolling interests assumed as part of acquisition accounting, which are discussed in Note 4, Note 9 and Note 11, respectively, herein, along with short- and long-term investments and derivative instruments, discussed below. Substantially all of the Company’s short- and long-term investments consist of certificates of deposit, which are considered as Level 2 in the fair value hierarchy. The vast majority of the Company’s existing long-term investments have original maturities of two years. The carrying amounts of these short- and long-term instruments, the vast majority of which are in non-U.S. bank accounts, approximate their respective fair values. The Company’s derivative instruments primarily consist of foreign exchange forward contracts, which are valued using bank quotations based on market observable inputs such as forward and spot rates and are therefore classified as Level 2 in the fair value hierarchy. The impact of the credit risk related to these derivative financial assets is immaterial.

The Company reviews the fair value hierarchy classifications on a quarterly basis and determines the appropriate classification of such assets and liabilities subject to the fair value hierarchy standards based on, among other things, the ability to observe valuation inputs. The fair values of the Company’s financial and non-financial assets and liabilities subject to such standards at December 31, 2023 and December 31, 2022 are as follows:

Fair Value Measurements

 

    

Quoted Prices in

    

Significant

    

Significant

 

Active Markets

Observable

Unobservable

 

for Identical

Inputs

Inputs

 

2023

Total

Assets (Level 1)

(Level 2)

(Level 3)

 

Short-term investments

$

185.2

$

$

185.2

$

Long-term investments

0.4

0.4

Forward contracts

(0.5)

(0.5)

Redeemable noncontrolling interests

(30.7)

(30.7)

Total

$

154.4

$

$

185.1

$

(30.7)

2022

 

Short-term investments

$

61.1

$

$

61.1

$

Long-term investments

50.8

50.8

Forward contracts

1.5

1.5

Redeemable noncontrolling interests

(20.6)

(20.6)

Total

$

92.8

$

$

113.4

$

(20.6)

The Company utilizes foreign exchange forward contracts, hedging instruments accounted for as cash flow hedges, in the management of foreign currency exposures. In addition, the Company also enters into foreign exchange forward contracts, accounted for as net investment hedges, to hedge our exposure to variability in the U.S. dollar equivalent of the net investments in certain foreign subsidiaries. As of December 31, 2023, the Company had no outstanding foreign exchange forward contracts accounted for as either net investment hedges or cash flow hedges. As of December 31, 2023, the fair value of such foreign exchange forward contracts in the table above consisted of various outstanding foreign exchange forward contracts that are not designated as hedging instruments. As of December 31, 2022, the fair value of such foreign exchange forward contracts in the table above consisted primarily of (i) one outstanding foreign exchange forward contract accounted for as a net investment hedge and (ii) various outstanding foreign exchange forward contracts that are not designated as hedging instruments. As of December 31, 2022, the Company had no outstanding foreign exchange forward contracts accounted for as cash flow hedges. As of December 31, 2023 and 2022, the fair values of the Company’s forward contracts are recorded within Prepaid expenses and other current assets, Other long-term assets, Other accrued expenses and Other long-term liabilities in the accompanying Consolidated Balance Sheets, depending on their value and remaining contractual period.

Certain acquisitions may result in noncontrolling interest holders who, in certain cases, are entitled to a put option, giving them the ability to put some or all of their redeemable interest in the shares of the acquiree to the Company. Specifically, if exercised by the noncontrolling interest holder, Amphenol would be required to purchase some or all of the option holder’s redeemable interest, at a redemption price during specified time period(s) stipulated in the respective acquisition agreement. The redeemable noncontrolling interests recorded on the accompanying Consolidated Balance Sheets relate to recent acquisitions, which, based on the terms of the respective acquisition agreements, will remain in temporary equity until the applicable put option is either fully exercised or expires. The redemption value of the redeemable noncontrolling interests is generally calculated using Level 3 unobservable inputs based on a multiple of earnings, which, for the redeemable noncontrolling interests currently outstanding, approximate fair value. As such, the redemption value is classified as Level 3 in the fair value hierarchy and is recorded as Redeemable noncontrolling interests on the Consolidated Balance Sheets as of December 31, 2023 and 2022.  A rollforward of the Redeemable noncontrolling interests for the years ended December 31, 2023, 2022 and 2021 is included in the accompanying Consolidated Statements of Changes in Equity.

With the exception of the fair value of the assets acquired and liabilities assumed in connection with acquisition accounting, the Company does not have any other significant financial or non-financial assets and liabilities that are measured at fair value on a non-recurring basis. For further discussion and related policies regarding the Company’s short- and long-term investments, derivative financial instruments, and redeemable noncontrolling interests, refer to Note 1 herein.

v3.24.0.1
Income Taxes
12 Months Ended
Dec. 31, 2023
Income Taxes  
Income Taxes

Note 6—Income Taxes

The components of income from continuing operations before income taxes and the provision for income taxes are as follows:

Year Ended December 31, 

 

    

2023

    

2022

    

2021

 

Income from continuing operations before income taxes:

United States

$

521.9

$

442.3

$

407.3

Foreign

 

1,932.9

 

2,025.1

 

1,581.9

$

2,454.8

$

2,467.4

$

1,989.2

Current tax provision (benefit):

United States

$

55.1

$

97.7

$

86.8

Foreign

 

513.0

 

457.6

 

351.9

568.1

555.3

438.7

Deferred tax provision (benefit):

United States

(10.0)

(31.5)

(35.4)

Foreign

 

(48.8)

 

26.8

 

5.8

 

(58.8)

 

(4.7)

 

(29.6)

Total provision for income taxes

$

509.3

$

550.6

$

409.1

The United States federal government enacted the Tax Cuts and Jobs Act (“Tax Act”) in December 2017. As a result, in 2017, the Company recorded a transition tax (“Transition Tax”) related to the deemed repatriation of the accumulated unremitted earnings and profits of the Company’s foreign subsidiaries. In the second quarter of 2023, the Company paid its sixth annual installment of the Transition Tax, net of applicable tax credits and deductions. The Company will pay the balance of the Transition Tax, net of applicable tax credits and deductions, over the remainder of the eight-year period ending 2025, as permitted under the Tax Act. The current and long-term portions of the Transition Tax are recorded in Accrued income taxes and Other long-term liabilities, respectively, on the Consolidated Balance Sheets as of December 31, 2023 and 2022. In addition, as a result of the Tax Act, the Company also recorded a tax charge, in 2017, related to changes in the Company’s permanent reinvestment assertion, due to our intention to repatriate prior accumulated unremitted earnings from certain foreign subsidiaries over time. We will pay such taxes when those respective earnings are repatriated.

At December 31, 2023, the Company had $177.3 of foreign tax loss carryforwards, $101.7 of U.S. state tax loss carryforwards and $9.1 of U.S. federal tax loss carryforwards, of which $5.2, $101.7 and $9.1, respectively, will either expire or be refunded at various dates through 2043 and the balance can be carried forward indefinitely.  At December 31, 2023, the Company had $17.6 of U.S. state tax credit carryforwards and $2.3 of U.S. federal tax credit carryforwards, of which $11.7 and $2.3, respectively, will either expire or be refunded at various dates through 2043 and the balance can be carried forward indefinitely.

A valuation allowance of $46.6 and $42.2 at December 31, 2023 and 2022, respectively, has been recorded which relates primarily to the U.S. state and foreign net operating loss carryforwards and U.S. state tax credits. The valuation allowance for deferred tax assets increased by $4.4 in 2023, which was primarily driven by U.S. state and foreign net operating loss carryforwards. The valuation allowance for deferred tax assets decreased by $2.7 in 2022, which was primarily driven by foreign currency exchange.

Differences between the U.S. statutory federal tax rate and the Company’s effective income tax rate are analyzed below:

Year Ended December 31, 

 

2023

  

2022

  

2021

 

U.S. statutory federal tax rate

21.0

%

21.0

%

21.0

%

State and local taxes, net

0.6

0.6

0.8

Foreign earnings and dividends taxed at different rates

2.2

2.3

1.8

U.S. tax on foreign income

0.5

0.6

Excess tax benefits related to stock-based compensation

(3.4)

(2.3)

(3.2)

Settlements of uncertain tax positions in foreign jurisdictions including refund claims and related deferred taxes

(0.7)

Other, net

0.3

0.2

0.3

Effective tax rate

20.7

%

22.3

%

20.6

%

The components of the Company’s deferred tax assets and liabilities are comprised of the following:

December 31, 

   

2023

   

2022

Deferred tax assets relating to:

Accrued liabilities and reserves

$

78.0

$

72.4

Operating lease liabilities

70.7

66.6

Operating loss, interest, and tax credit carryforwards

 

76.9

 

57.4

Pensions

 

16.7

 

15.0

Inventories

 

86.0

 

77.8

Employee benefits

 

45.1

 

42.9

Total deferred tax assets

373.4

332.1

Valuation allowance

(46.6)

(42.2)

Total deferred tax assets, net of valuation allowances

326.8

289.9

Deferred tax liabilities relating to:

Goodwill

270.5

251.7

Depreciation and amortization

 

130.9

 

140.3

Operating lease right-of-use assets

70.7

66.6

Unremitted foreign earnings

123.2

 

154.2

Total deferred tax liabilities

595.3

612.8

Net deferred tax liability

$

268.5

$

322.9

Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets:

Other long-term assets

$

98.5

$

86.9

Deferred income taxes

 

367.0

 

409.8

Net deferred tax liability, long-term

$

268.5

$

322.9

A tabular reconciliation of the gross amounts of unrecognized tax benefits excluding interest and penalties at the beginning and end of the year for 2023, 2022 and 2021 is shown below.

    

2023

    

2022

    

2021

 

Unrecognized tax benefits as of January 1

$

164.1

$

147.7

$

135.3

Gross increases for tax positions in prior periods

 

3.8

 

12.8

 

6.5

Gross increases for tax positions in current period

 

8.4

 

4.9

 

8.2

Settlements

 

(1.0)

 

(0.4)

 

Lapse of statutes of limitations

 

(1.1)

 

(0.9)

 

(2.3)

Unrecognized tax benefits as of December 31

$

174.2

$

164.1

$

147.7

The Company includes estimated interest and penalties related to unrecognized tax benefits in the provision for income taxes. During the years ended December 31, 2023, 2022 and 2021, the provision for income taxes included a net expense (benefit) of $5.8, $0.8 and ($4.6), respectively, in estimated interest and penalties. As of December 31, 2023, 2022 and 2021, the liability for unrecognized tax benefits included $41.8, $35.8 and $34.5, respectively, for tax-related interest and penalties.

The Company operates in the U.S. and numerous foreign taxable jurisdictions, and at any point in time has numerous audits underway at various stages of completion. With few exceptions, the Company is subject to income tax examinations by tax authorities for the years 2017 and after. The Company is generally not able to precisely estimate the ultimate settlement amounts or timing until the close of an audit. The Company evaluates its tax positions and establishes liabilities for uncertain tax positions that may be challenged by tax authorities and may not be fully sustained, despite the Company’s belief that the underlying tax positions are fully supportable. As of December 31, 2023 and 2022, the amount of unrecognized tax benefits, including penalties and interest, which if recognized would impact the effective tax rate, was approximately $208.6 and $194.4, respectively. Unrecognized tax benefits are reviewed on an ongoing basis and are adjusted for changing facts and circumstances, including the progress of tax audits and the closing of statutes of limitations. Based on information currently available, management anticipates that over the next 12-month period, audit activity could be completed and statutes of limitations may close relating to existing unrecognized tax benefits of approximately $35.4.

Inflation Reduction Act of 2022

On August 16, 2022, the President of the United States signed into law the Inflation Reduction Act of 2022 (the “IRA”), a tax and spending package that introduces several tax-related provisions, including a 15% corporate alternative minimum tax (“CAMT”) on certain large corporations and a 1% excise tax on certain corporate stock repurchases. Companies will be required to reassess their valuation allowances for certain affected deferred tax assets in the period of enactment but will not need to remeasure deferred tax balances for the related tax accounting implications of the CAMT. The IRA provisions, which became effective for Amphenol beginning on January 1, 2023, did not have a material impact on the Company during the year ended December 31, 2023. While the full impact of these provisions in the future depends on several factors, including interpretive regulatory guidance, which has not yet been released, the Company does not currently believe that the provisions of the IRA, including several other non-tax related provisions, will have a material impact on its financial condition, results of operations, liquidity and cash flows.

v3.24.0.1
Equity
12 Months Ended
Dec. 31, 2023
Equity  
Equity

Note 7—Equity

Stock-Based Compensation:

For the years ended December 31, 2023, 2022 and 2021, the Company’s Income from continuing operations before income taxes was reduced for stock-based compensation expense of $99.0, $89.5 and $83.0, respectively, the expense of which is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Income. In addition, for the years ended December 31, 2023, 2022 and 2021, the Company recognized aggregate income tax benefits (associated with stock-based compensation) of $92.4, $64.8 and $71.7, respectively, in Provision for income taxes in the accompanying Consolidated Statements of Income. These aggregate income tax benefits during the years ended December 31, 2023, 2022 and 2021 include excess tax benefits of $82.4, $56.0 and $63.4, respectively, from option exercises. The impact associated with recognizing excess tax benefits from option exercises in the provision for income taxes on our consolidated financial statements could result in significant fluctuations in our effective tax rate in the future, since the provision for income taxes will be impacted by the timing and intrinsic value of future stock-based compensation award exercises.

Stock Options

In May 2017, the Company adopted the 2017 Stock Purchase and Option Plan for Key Employees of Amphenol and Subsidiaries (the “2017 Employee Option Plan”), which provided for the issuance of 60,000,000 shares.  In March 2021, the Board authorized and approved the Amended and Restated 2017 Stock Purchase and Option Plan for Key Employees of Amphenol and Subsidiaries (the “Amended 2017 Employee Option Plan” and, together with the 2017 Employee Option Plan, the “2017 Option Plan”), which among other things, increased the number of shares reserved for issuance under the plan by 40,000,000 shares. The Amended 2017 Employee Option Plan was approved by the Company’s stockholders and became effective on May 19, 2021. As of December 31, 2023, there were 31,280,607 shares of Class A Common Stock (“Common Stock”) available for the granting of additional stock options under the 2017 Option Plan.

Prior to the approval of the 2017 Employee Option Plan, the Company issued stock options under the 2009 Stock Purchase and Option Plan for Key Employees of Amphenol and Subsidiaries, and its amendment (the “2009 Employee Option Plan”). No additional stock options will be granted under the 2009 Employee Option Plan. Options granted under the 2017 Option Plan and the 2009 Employee Option Plan generally vest ratably over a period of five years from the date of grant and are generally exercisable over a period of 10 years from the date of grant.  

Stock option activity for 2021, 2022 and 2023 was as follows:

 

Weighted

 

 

Average

Aggregate

 

 

Weighted

Remaining

Intrinsic

 

 

Average

Contractual

Value

 

Options

    

Exercise Price

    

Term (in years)

    

(in millions)

 

Options outstanding at January 1, 2021

 

67,985,648

$

37.58

 

6.79

Options granted

 

7,543,589

 

66.65

Options exercised

 

(9,692,199)

 

29.87

Options forfeited

 

(536,290)

 

48.00

Options outstanding at December 31, 2021

 

65,300,748

 

42.00

6.47

Options granted

 

7,090,798

 

68.95

Options exercised

 

(5,627,389)

 

32.89

Options forfeited

 

(629,120)

 

51.82

Options outstanding at December 31, 2022

 

66,135,037

45.57

6.03

Options granted

 

6,065,514

 

75.99

Options exercised

 

(11,253,331)

 

35.11

Options forfeited

 

(557,058)

 

58.31

Options outstanding at December 31, 2023

 

60,390,162

$

50.45

5.81

$

2,939.5

Vested and non-vested options expected to vest at December 31, 2023

 

58,703,071

$

50.06

5.75

$

2,880.6

Exercisable options at December 31, 2023

 

37,866,181

$

42.88

4.66

$

2,129.9

A summary of the status of the Company’s non-vested options as of December 31, 2023 and changes during the year then ended is as follows:

    

    

Weighted Average

 

Fair Value

Options

at Grant Date

 

Non-vested options at January 1, 2023

 

26,721,012

$

11.04

Options granted

 

6,065,514

 

21.42

Options vested

 

(9,705,487)

 

9.28

Options forfeited

 

(557,058)

 

12.17

Non-vested options at December 31, 2023

 

22,523,981

$

14.57

The weighted average fair value at the grant date of options granted during 2022 and 2021 was $16.79 and $13.27, respectively.

During the years ended December 31, 2023, 2022 and 2021, the following activity occurred under the Company’s option plans:

2023

    

2022

    

2021

Total intrinsic value of stock options exercised

$

559.6

$

245.1

$

430.9

Total fair value of stock options vested

 

90.0

 

79.9

 

71.7

As of December 31, 2023, the total compensation cost related to non-vested options not yet recognized was approximately $250.3, with a weighted average expected amortization period of 3.36 years.

The grant-date fair value of each option grant under the 2009 Employee Option Plan and the 2017 Option Plan is estimated using the Black-Scholes option pricing model. The grant-date fair value of each share grant is determined based on the closing share price of the Company’s Common Stock on the date of the grant. The fair value is then amortized on a straight-line basis over the requisite service period of the awards, which is generally the vesting period.

Use of a valuation model for option grants requires management to make certain assumptions with respect to selected model inputs. Expected share price volatility is calculated based on the historical volatility of the Common Stock and implied volatility derived from related exchange traded options. The average expected life is based on the contractual term of the option and expected exercise and historical experience. The risk-free interest rate is based on U.S. Treasury zero-coupon issuances with a remaining term equal to the expected life assumed at the date of grant. The expected annual dividend per share is based on the Company’s dividend rate.

The fair value of stock options has been estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions:

    

2023

2022

2021

Risk free interest rate

3.8

%  

2.7

%  

0.7

%  

Expected life

 

4.9

years

4.8

years

4.7

years

Expected volatility

 

28.0

%  

25.9

%  

25.0

%  

Expected dividend yield

 

1.0

%  

1.0

%  

1.0

%  

Restricted Stock

In 2012, the Company adopted the 2012 Restricted Stock Plan for Directors of Amphenol Corporation (the “2012 Directors Restricted Stock Plan”). The 2012 Directors Restricted Stock Plan expired on May 22, 2022. The 2012 Directors Restricted Stock Plan was administered by the Board. Grants under the 2012 Directors Restricted Stock Plan entitled the holder to receive shares of the Company’s Common Stock without payment. Restricted shares granted under the 2012 Directors Restricted Stock Plan vested on the earlier of the first anniversary of the date of grant or the day immediately prior to the date of the next regular annual meeting of the Company’s stockholders following such date of grant.

On May 17, 2023, 21,312 shares of restricted stock previously granted to non-employee directors vested in accordance with their terms. As of December 31, 2023, no additional shares of restricted stock are outstanding under the 2012 Directors Restricted Stock Plan and, given that the 2012 Directors Restricted Stock Plan has expired, no additional shares of restricted stock will be granted thereunder.

Restricted share activity for 2021, 2022 and 2023 was as follows:

Weighted Average

Fair Value

Remaining

Restricted

at Grant

Amortization

    

Shares

    

Date

    

Term (in years)

 

Restricted shares outstanding at January 1, 2021

 

26,350

$

45.55

 

0.38

Restricted shares granted

 

21,983

 

66.33

Shares vested and issued

 

(27,272)

 

45.80

Restricted shares outstanding at December 31, 2021

 

21,061

 

66.92

    

0.38

Restricted shares granted

 

21,312

 

67.59

Shares vested and issued

 

(21,061)

 

66.92

Restricted shares outstanding at December 31, 2022

    

21,312

67.59

    

0.37

Restricted shares granted

 

 

Shares vested and issued

 

(21,312)

 

67.59

Restricted shares outstanding at December 31, 2023

    

    

$

    

The total fair value of restricted share awards that vested during 2023, 2022, and 2021 was $1.4, $1.4 and $1.2, respectively.

Phantom Stock

On June 5, 2023, the Company granted 2,375 shares of phantom stock to each then-current non-employee director (19,000 shares in the aggregate), which will vest and, pursuant to written elections made by each non-employee director, convert into unrestricted shares of the Company’s Common Stock on the earlier of May 19, 2024 or the day immediately prior to the date of the 2024 annual meeting of the Company’s stockholders. As of December 31, 2023, the total compensation cost related to non-vested shares of phantom stock not yet recognized was approximately $0.5 (with a weighted average expected amortization period of 0.37 years).

Stock Repurchase Programs:

On April 27, 2021, the Board authorized a stock repurchase program under which the Company may purchase up to $2,000.0 of the Company’s Common Stock during the three-year period ending April 27, 2024 (the “2021 Stock Repurchase Program”). During the year ended December 31, 2023, the Company repurchased 7.2 million shares of its Common Stock for $585.1, of which 5.5 million shares, or $435.8, have been retired by the Company, with the remainder of the repurchased shares being retained in Treasury stock at the time of repurchase. During the year ended December 31, 2022, the Company repurchased 9.9 million shares of its Common Stock for $730.5, of which 9.3 million shares, or $689.7, have been retired by the Company, with the remainder of the repurchased shares being retained in Treasury stock at the time of repurchase. During the year ended December 31, 2021, the Company repurchased 6.2 million shares of its Common Stock for $457.9 under the 2021 Stock Repurchase Program, of which 5.8 million shares, or $424.9, were retired by the Company, with the remainder of the repurchased shares being retained in Treasury stock at the time of repurchase. From January 1, 2024 through January 31, 2024, the Company did not repurchase any additional shares of its Common Stock, and, as of February 1, 2024, the Company has remaining authorization to purchase up to $226.5 of its Common Stock under the 2021 Stock Repurchase Program. The timing and amount of any future purchases will depend on a number of factors, such as the levels of cash generation from operations, the volume of stock options exercised by employees, cash requirements for acquisitions, dividends paid, economic and market conditions and the price of the Common Stock.

On April 24, 2018, the Board authorized a stock repurchase program under which the Company could purchase up to $2,000.0 of Common Stock during the three-year period ending April 24, 2021 (the “2018 Stock Repurchase Program”). During the year ended December 31, 2021, the Company repurchased 3.1 million shares of its Common Stock for $203.8 under the 2018 Stock Repurchase Program. As a result of these purchases, the Company completed all purchases authorized under the 2018 Stock Repurchase Program, and, therefore, the 2018 Stock Repurchase Program was terminated. Of the total repurchases made in 2021 under the 2018 Stock Repurchase Program, 2.8 million shares, or $184.0, were retired by the Company, with the remainder of the repurchased shares being retained in Treasury stock at the time of repurchase.

Dividends:

Contingent upon declaration by the Board, the Company pays a quarterly dividend on shares of its Common Stock. On October 25, 2022, the Board approved an increase to the Company’s quarterly dividend rate from $0.20 per share to $0.21 per share, effective with dividends declared in the fourth quarter of 2022, and on October 24, 2023, the Board approved an additional increase to the Company’s quarterly dividend rate from $0.21 per share to $0.22 per share, effective with dividends declared in the fourth quarter of 2023, contingent upon declaration by the Board. The following table summarizes the declared quarterly dividends per share for each of the three years ended December 31, 2023, 2022 and 2021:

 

2023

2022

2021

First Quarter

$

0.21

$

0.20

$

0.145

Second Quarter

0.21

0.20

0.145

Third Quarter

0.21

0.20

0.145

Fourth Quarter

0.22

0.21

0.20

Total

$

0.85

$

0.81

$

0.635

Dividends declared and paid for the years ended December 31, 2023, 2022 and 2021 were as follows:

    

2023

2022

2021

Dividends declared

$

507.4

$

482.6

$

379.7

Dividends paid (including those declared in the prior year)

 

500.6

 

477.4

 

346.7

Accumulated Other Comprehensive Income (Loss):

Balances of related after-tax components comprising Accumulated other comprehensive income (loss) included in equity at December 31, 2023, 2022 and 2021 are as follows:

Foreign

Unrealized

Pension and

Accumulated

 

Currency

Gain (Loss)

Postretirement

Other

Translation

on Hedging

Benefit Plan

Comprehensive

 

  

Adjustments

    

Activities

    

Adjustment

    

(Loss) Income

 

Balance at January 1, 2021

$

(86.6)

$

0.1

$

(191.6)

$

(278.1)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($12.3), respectively

(66.2)

37.4

(28.8)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($6.6)

20.4

20.4

Balance at December 31, 2021

 

(152.8)

 

0.1

 

(133.8)

 

(286.5)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($0.4), respectively

(260.2)

(0.1)

(1.4)

(261.7)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($4.3)

13.2

13.2

Balance at December 31, 2022

 

(413.0)

 

 

(122.0)

 

(535.0)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and $1.1, respectively

0.3

(2.0)

(1.7)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($1.0)

3.1

3.1

Balance at December 31, 2023

$

(412.7)

$

$

(120.9)

$

(533.6)

For the years ended December 31, 2023, 2022 and 2021, as it relates to the Company’s cash flow hedges, which is comprised of foreign exchange forward contracts, the amounts recognized in Accumulated other comprehensive income (loss) associated with foreign exchange forward contracts, as well as the amounts reclassified from Accumulated other comprehensive income (loss) to foreign exchange gain (loss), included in Cost of sales in the accompanying Consolidated Statements of Income, were not material. There were no reclassifications associated with our net investment hedges from Accumulated other comprehensive income (loss) to earnings during the years presented in the table above. While there were no outstanding cash flow hedges as of December 31, 2023, any amounts included in Accumulated other comprehensive income (loss) associated with cash flow hedges are generally reclassified into earnings within the following twelve months. The amounts reclassified from Accumulated other comprehensive income (loss) to earnings, related to pension and other postretirement benefit plans in the table above, are reported within Other income (expense), net in the Consolidated Statements of Income, the vast majority of which is related to the amortization of actuarial losses associated with our defined benefit plans. The amortization of actuarial losses is included in the computation of net pension expense discussed in more detail within Note 9 herein.

v3.24.0.1
Earnings Per Share
12 Months Ended
Dec. 31, 2023
Earnings Per Share  
Earnings Per Share

Note 8—Earnings Per Share

The following is a reconciliation of net income from continuing operations, discontinued operations and for total Amphenol Corporation, as well as a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding, which were used to calculate the earnings per share (basic and diluted) for the years ended December 31, 2023, 2022 and 2021 (note that per share amounts may not add due to rounding):

(dollars and shares in millions, except per share data)

   

2023

   

2022

   

2021

Net income attributable to Amphenol Corporation stockholders:

Net income from continuing operations attributable to Amphenol Corporation

$

1,928.0

$

1,902.3

$

1,569.4

Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($3.2) for 2021

21.4

Net income attributable to Amphenol Corporation

$

1,928.0

$

1,902.3

$

1,590.8

Weighted average common shares outstanding — Basic

 

596.5

 

596.2

 

597.9

Effect of dilutive stock options

 

24.1

 

24.8

 

27.6

Weighted average common shares outstanding — Diluted

 

620.6

 

621.0

 

625.5

Net income per common share attributable to Amphenol Corporation — Basic:

Continuing operations

$

3.23

$

3.19

$

2.62

Discontinued operations, net of income taxes

0.04

Net income attributable to Amphenol Corporation — Basic

$

3.23

$

3.19

$

2.66

Net income per common share attributable to Amphenol Corporation — Diluted:

Continuing operations

$

3.11

$

3.06

$

2.51

Discontinued operations, net of income taxes

0.03

Net income attributable to Amphenol Corporation — Diluted

$

3.11

$

3.06

$

2.54

Excluded from the computations above were anti-dilutive common shares (primarily related to outstanding stock options) of 7.2 million, 9.0 million and 3.5 million for the years ended December 31, 2023, 2022 and 2021, respectively.

v3.24.0.1
Benefit Plans and Other Postretirement Benefits
12 Months Ended
Dec. 31, 2023
Benefit Plans and Other Postretirement Benefits  
Benefit Plans and Other Postretirement Benefits

Note 9—Benefit Plans and Other Postretirement Benefits

Defined Benefit Plans

The Company and certain of its domestic subsidiaries have defined benefit pension plans (the “U.S. Plans”), which cover certain U.S. employees and which represent the majority of the plan assets and benefit obligations of the aggregate defined benefit plans of the Company. The U.S. Plans’ benefits are generally based on years of service and compensation and are generally noncontributory. The majority of U.S. employees are not covered by the U.S. Plans and are instead covered by various defined contribution plans. The Company also has an unfunded Supplemental Employee Retirement Plan (“SERP”), which provides for the payment of the portion of annual pension that cannot be paid from the retirement plan as a result of regulatory limitations on average compensation for purposes of the benefit computation. Certain foreign subsidiaries have defined benefit plans covering their employees (the “Foreign Plans” and, together with the U.S. Plans, the “Plans”). The largest foreign pension plan, in accordance with local regulations, is unfunded and had a projected benefit obligation of approximately $81.7 and $71.5 at December 31, 2023 and 2022, respectively. Total required contributions to be made during 2024 for the unfunded Foreign Plans are included in Other accrued expenses in the accompanying Consolidated Balance Sheets and in the tables below.

The following is a summary of the Company’s defined benefit plans’ funded status as of the most recent actuarial valuations as of December 31 of each year.

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.2

$

495.3

$

175.6

$

265.9

$

563.8

$

761.2

Service cost

 

2.5

 

3.5

 

1.3

 

2.5

 

3.8

 

6.0

Interest cost

 

18.6

 

10.6

 

6.8

 

3.4

 

25.4

 

14.0

Plan amendments

 

 

2.8

 

 

 

 

2.8

Actuarial loss (gain)

 

8.8

 

(95.8)

 

5.7

 

(69.6)

 

14.5

 

(165.4)

Foreign exchange translation and other

 

 

 

(9.5)

 

(19.2)

 

(9.5)

 

(19.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Projected benefit obligation at end of year

 

388.5

 

388.2

 

173.3

 

175.6

 

561.8

 

563.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

387.0

 

527.5

 

83.6

 

116.5

 

470.6

 

644.0

Actual return on plan assets

 

37.1

 

(113.4)

 

7.7

 

(21.5)

 

44.8

 

(134.9)

Employer contributions

 

1.1

 

1.1

 

4.3

 

5.2

 

5.4

 

6.3

Foreign exchange translation and other

 

 

 

(3.0)

 

(9.2)

 

(3.0)

 

(9.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Fair value of plan assets at end of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

21.2

$

12.9

$

0.7

$

0.7

$

21.9

$

13.6

Other accrued expenses

1.2

1.2

2.9

3.2

4.1

4.4

Accrued pension and postretirement benefit obligations

12.9

12.9

85.1

89.5

98.0

102.4

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Accumulated other comprehensive loss, net

$

(104.0)

$

(108.5)

$

(18.9)

$

(15.6)

$

(122.9)

$

(124.1)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

4.97

%

5.18

%

3.72

%

4.20

%

Rate of compensation increase

 

2.40

%

2.40

%

1.89

%

1.83

%

The projected benefit obligation decreased slightly in 2023 compared to 2022, primarily due to benefits paid during the year, which were largely offset by interest cost. The projected benefit obligation decreased in 2022, primarily due to actuarial gains resulting from the impact of higher discount rates on our projected benefit obligation, along with foreign exchange translation and benefits paid during the year. The accumulated benefit obligation for the Company’s defined benefit pension plans was $557.0 and $560.1 at December 31, 2023 and 2022, respectively. As of December 31, 2023 and 2022, the accumulated benefit obligation for the U.S. Plans was $388.2 and $387.8, respectively, and for the Foreign Plans was $168.8 and $172.3, respectively.

The following summarizes information for defined benefit plans with an accumulated benefit obligation in excess of plan assets as of December 31, 2023 and 2022:

U.S. Plans

Foreign Plans

2023

  

2022

  

2023

2022

Accumulated benefit obligation

$

23.1

$

22.8

$

142.3

$

147.2

Fair value of plan assets

9.1

8.9

57.0

57.7

The following summarizes information for defined benefit plans with a projected benefit obligation in excess of plan assets as of December 31, 2023 and 2022:

U.S. Plans

Foreign Plans

2023

  

2022

  

2023

2022

Projected benefit obligation

$

23.2

$

22.9

$

169.3

$

170.7

Fair value of plan assets

9.1

8.9

81.2

77.9

The amounts, before tax, included in Accumulated other comprehensive loss at December 31, 2023 and 2022 that have not yet been recognized as expense were as follows:

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Actuarial losses, net

$

131.0

   

$

136.3

     

$

15.7

   

$

11.0

     

$

146.7

   

$

147.3

Prior service cost

4.8

6.5

0.5

0.5

5.3

7.0

The following is a summary of the components of net pension expense for the Company’s defined benefit plans for the years ended December 31, 2023, 2022 and 2021:

U.S. Plans

Foreign Plans

Total

  

2023

  

2022

  

2021

2023

  

2022

  

2021

2023

  

2022

  

2021

Components of net pension expense:

Service cost

$

2.5

$

3.5

$

4.2

$

1.3

$

2.5

$

3.3

$

3.8

$

6.0

$

7.5

Interest cost

 

18.6

 

10.6

 

8.6

 

6.8

 

3.4

 

2.7

 

25.4

 

14.0

 

11.3

Expected return on plan assets

 

(24.6)

 

(26.5)

 

(28.1)

 

(4.5)

 

(3.4)

 

(3.1)

 

(29.1)

 

(29.9)

 

(31.2)

Amortization of prior service cost

1.7

1.4

1.9

0.1

0.2

1.8

1.4

2.1

Amortization of actuarial losses

 

1.6

 

11.9

 

17.8

 

0.7

 

4.2

 

7.0

 

2.3

 

16.1

 

24.8

Net pension (income) expense

$

(0.2)

$

0.9

$

4.4

$

4.4

$

6.7

$

10.1

$

4.2

$

7.6

$

14.5

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

5.18

%

2.69

%

2.30

%

4.20

%

1.58

%

1.12

%

Expected long-term return on assets

 

5.50

%

5.50

%

6.00

%

5.45

%

3.35

%

2.71

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.93

%

1.75

%

1.75

%

The pension expense for the Plans is calculated based upon a number of actuarial assumptions established on January 1 of the applicable year, including mortality projections as well as a weighted average discount rate, rate of increase in future compensation levels and an expected long-term rate of return on the respective Plans’ assets which are detailed in the table above. The Company records service costs in the same line item as the respective employee compensation costs and within operating income, while all non-service costs are reported separately within Other income (expense), net in the Consolidated Statements of Income. 

The discount rate used by the Company for valuing pension liabilities is based on a review of high quality corporate bond yields with maturities approximating the remaining life of the projected benefit obligations. The weighted average discount rate for the U.S. Plans on this basis was 4.97% and 5.18% at December 31, 2023 and 2022, respectively. The decrease in the discount rate for the U.S. Plans resulted in an increase in the benefit obligation of approximately $7 at December 31, 2023. The weighted average discount rate for the Foreign Plans was 3.72% and 4.20% at December 31, 2023 and 2022, respectively. The decrease in the discount rate for the Foreign Plans did not have a material effect on the benefit obligation at December 31, 2023. The Company calculates its service and interest costs by applying a split discount rate approach under which specific spot rates along the selected yield curve are applied to the relevant projected cash flows as the Company believes this method more precisely measures its obligations. The mortality assumptions used by the Company reflect commonly used mortality tables and improvement scales for each plan and increased life expectancies for plan participants.

The primary investment objective of the Plans is to ensure an adequate pool of assets to support the benefit obligations to participants, retirees and beneficiaries. Over time, the Plans have aimed to earn a rate of return on assets greater than the liability discount rate, with a prudent level of risk and diversification. For the U.S. Plans, this has resulted in assets exceeding benefit obligations. In an effort to reduce the funding status volatility of the Plans, the target asset allocations for the U.S. Plans were 15% equities and 85% fixed income as of December 31, 2023, and the Company expects to maintain these target asset allocations for the U.S. Plans for 2024. The target asset allocations for the U.S. Plans were 25% equities and 75% fixed income as of December 31, 2022. Short-term strategic ranges for investments will continue to be established within these new long-term target percentages. The Company regularly reviews the actual asset allocation and periodically rebalances investments to its targeted allocation when considered appropriate.

The Company invests in a diversified investment portfolio through various investment managers and evaluates its plan assets for the existence of concentration risks. As of December 31, 2023, there were no significant concentrations of risks in the Company’s defined benefit plan assets. The Company does not invest nor instruct investment managers to invest pension assets in Amphenol securities. The Plans may indirectly hold the Company’s securities as a result of external investment management in certain commingled funds. Such holdings would not be material relative to the Plans’ total assets. The Company’s Foreign Plans primarily invest in equity and debt securities and insurance contracts, as determined by each Plans’ Trustees or investment managers.

In developing the expected long-term rate of return assumption for the U.S. Plans, the Company relies primarily on projected long-term asset returns by asset class prepared annually by our investment consultants. For 2023, the expected long-term rate of return on the U.S. Plans’ assets was based on an asset allocation assumption of approximately 25% with equity managers (with an expected long-term rate of return of approximately 6.0%) and 75% with fixed income managers (with an expected long-term rate of return of approximately 5.3%).

The Company’s Plan assets, the vast majority of which relate to the U.S. Plans, are reported at fair value and classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The process requires judgment and may have an effect on the placement of the Plan assets within the fair value measurement hierarchy. The fair values of the Company’s pension Plans’ assets at December 31, 2023 and 2022 by asset category are as follows (refer to Note 5 for definitions of Level 1, 2 and 3 inputs):

Assets Measured at

Asset Category

Total

Level 1

Level 2

Level 3

Net Asset Value (a)

December 31, 2023

Equity securities:

U.S. equities — large cap

$

29.0

$

$

29.0

$

$

U.S. equities — small/mid cap and other

 

8.7

 

 

8.7

 

 

International equities — growth

 

22.1

 

12.3

 

9.8

 

 

International equities — other

 

25.7

 

 

25.7

 

 

Alternative investment funds

5.6

5.6

Fixed income securities:

U.S. fixed income securities — intermediate term

 

113.5

 

 

113.5

 

 

U.S. fixed income securities — long term

210.9

 

 

210.9

 

 

International fixed income securities — other

 

39.7

 

39.7

 

 

Insurance contracts

 

19.5

 

 

 

19.5

 

Cash and cash equivalents

 

6.9

 

6.9

 

 

 

Total

$

481.6

$

19.2

$

437.3

$

19.5

$

5.6

December 31, 2022

Equity securities:

U.S. equities — large cap

$

44.1

$

$

44.1

$

$

U.S. equities — small/mid cap and other

 

13.0

 

 

13.0

 

 

International equities — growth

 

28.7

 

19.7

 

9.0

 

 

International equities — other

 

38.4

 

 

38.4

 

 

Alternative investment funds

14.6

14.6

Fixed income securities:

U.S. fixed income securities — intermediate term

 

83.6

 

 

83.6

 

 

U.S. fixed income securities — long term

181.3

 

 

181.3

 

 

International fixed income securities — other

 

34.0

 

34.0

 

 

Insurance contracts

24.3

 

 

 

24.3

 

Cash and cash equivalents

8.6

 

8.6

 

 

 

Total

$

470.6

$

28.3

$

403.4

$

24.3

$

14.6

(a)Certain investments measured at fair value using the net asset value practical expedient have been removed from the fair value hierarchy but included in the table above in order to permit the reconciliation of the fair value hierarchy to total plan assets.

Equity securities primarily consist of publicly traded U.S. and non-U.S. equities. Publicly traded securities are valued at the last trade or closing price reported in the active market in which the individual securities are traded. Certain equity securities held in commingled funds are valued at unitized net asset value (“NAV”) based on the fair value of the underlying net assets owned by the funds. Alternative investment funds include investments in hedge funds including fund of fund products.

Fixed income securities primarily consist of government securities and corporate bonds. They are valued at the closing price in the active market or at quotes obtained from brokers/dealers or pricing services. Certain fixed income securities held within commingled funds are valued based on the fair value of the underlying net assets of the funds, as determined by the custodian of the funds.

The Level 2 pension plan assets are comprised primarily of pooled funds valued using published prices based off of observable market data.

The Level 3 pension plan assets as of December 31, 2023 and 2022 included in the table above primarily consist of contracts with insurance companies related to certain foreign plans. The insurance contracts generally include guarantees in accordance with the policy purchased. Our valuation of Level 3 assets is based on insurance company or third-party actuarial valuations, representing an estimation of the surrender or market values of the insurance contract between the Company and the insurance companies. The following table sets forth a summary of changes of the fair value of the Level 3 pension plan assets for the years ended December 31, 2023 and 2022:

2023

2022

Balance on January 1

$

24.3

$

34.1

Unrealized gains (losses), net

1.6

(6.2)

Purchases, sales and settlements, net

(7.2)

(1.3)

Foreign currency translation

0.8

(2.3)

Balance on December 31

$

19.5

$

24.3

The Company made cash contributions to the Plans of $5.4, $6.3, and $6.8 in 2023, 2022, and 2021, respectively. There is no current requirement for cash contributions to any of the U.S. Plans, and the Company plans to evaluate annually, based on actuarial calculations and the investment performance of the Plans’ assets, the timing and amount of cash contributions in the future, if any.

Benefit payments related to the Plans above, including those amounts to be paid out of Company assets and reflecting future expected service as appropriate, are expected to be as follows:

    

U.S.

Foreign

 

Year

Plans

Plans

Total

 

2024

    

$

38.5

 

$

7.5

 

$

46.0

 

2025

 

29.9

 

7.7

 

37.6

2026

 

30.1

 

8.0

 

38.1

2027

 

30.1

 

8.3

 

38.4

2028

 

30.0

 

8.6

 

38.6

2029-2033

 

142.6

 

46.1

 

188.7

Certain foreign subsidiaries of the Company offer certain benefits under local statutory plans which are excluded from the tables above. The net liability for such plans was $30.9 and $15.6 as of December 31, 2023 and 2022, respectively, the majority of which is included within Accrued pension and postretirement benefit obligations in the accompanying Consolidated Balance Sheets.

Other Postretirement Benefit Plans

The Company maintains self-insurance programs for that portion of its health care and workers compensation costs not covered by insurance. The Company also provides certain health care and life insurance benefits to certain eligible retirees in the U.S. through postretirement benefit (“OPEB”) programs. The Company’s share of the cost of such plans for most participants is fixed, and any increase in the cost of such plans will be the responsibility of the retirees. The Company funds the benefit costs for such plans on a pay-as-you-go basis. As of December 31, 2023 and 2022, the total liability associated with postretirement benefit obligations was approximately $3.9 and $4.3, respectively, the majority of which is included in Accrued pension and postretirement benefit obligations on the accompanying Consolidated Balance Sheets. The weighted average discount rate used to determine the projected benefit obligation as of December 31, 2023 and 2022 was 5.00% and 5.22%, respectively. Net postretirement benefit expense on the accompanying Consolidated Statements of Income was not material for each of the years ended December 31, 2023, 2022 and 2021. Since the Company’s obligation for postretirement medical plans is fixed and since the benefit obligation and the net postretirement benefit expense are not material in relation to the Company’s financial condition or results of operations, the Company believes any change in medical costs from that estimated will not have a significant impact on the Company.

Defined Contribution Plans

The Company offers various defined contribution plans for certain U.S. and foreign employees. Participation in these plans is based on certain eligibility requirements. Through December 31, 2022, the Company matched employee contributions to the U.S. defined contribution plans up to a maximum of 6% of eligible compensation. Effective

January 1, 2023, the Company increased its matching of employee contributions to the U.S. defined contribution plans to a maximum of 7% of eligible compensation. The Company provided matching contributions to the U.S. defined contribution plans of approximately $24.0, $18.0 and $16.2 in 2023, 2022 and 2021, respectively.

v3.24.0.1
Leases
12 Months Ended
Dec. 31, 2023
Leases  
Leases

Note 10—Leases

Operating Leases

For the years ended December 31, 2023, 2022 and 2021, total operating lease cost was $127.1, $121.4, and $118.2, respectively, which include an immaterial amount of variable lease cost, and is recorded in Cost of sales and Selling, general and administrative expenses, dependent on the nature of the leased asset. Other than variable lease cost, operating lease cost is recognized on a straight-line basis over the lease term. The following summarizes (i) the future minimum undiscounted lease payments under non-cancelable operating leases for each of the next five years and thereafter, incorporating the practical expedient to account for lease and non-lease components as a single lease component for our existing real estate leases and (ii) a reconciliation of the undiscounted lease payments to the present value of the lease liabilities recognized, all as of December 31, 2023:

Year Ending December 31,

2024

$

99.8

2025

72.7

2026

53.3

2027

36.9

2028

22.8

Thereafter

46.7

Total future minimum lease payments

$

332.2

Less imputed interest

(28.5)

Total present value of future minimum lease payments

$

303.7

The following summarizes the operating lease-related account balances on our Consolidated Balance Sheets, as of December 31, 2023 and 2022:

    

2023

    

2022

Operating lease right-of-use assets (included in Other long-term assets)

$

301.5

$

289.5

Other accrued expenses

$

91.6

$

85.2

Other long-term liabilities

212.1

208.5

Total operating lease liabilities

$

303.7

$

293.7

The following summarizes additional supplemental data related to our operating leases:

Year Ended December 31:

2023

2022

2021

Supplemental Cash Flow Information:

Cash paid for amounts included in the measurement of lease liabilities:

Operating cash flows from operating leases

$

114.3

$

109.3

$

103.2

Right-of-use assets obtained in exchange for lease liabilities

$

115.2

$

164.5

$

121.5

As of December 31:

Weighted Average Remaining Lease Term

5 years

5 years

5 years

Weighted Average Discount Rate

3.6

%

2.7

%

2.2

%

Lease contracts that we have executed but which have not yet commenced as of December 31, 2023 were not material, and are excluded from the tables above. The Company does not generally enter into leases involving the construction or design of the underlying asset, and nearly all of the assets we lease are not specialized in nature. Our lease agreements generally do not include residual value guarantees nor do we enter into sublease arrangements with external parties.

Finance Leases

In rare circumstances, the Company may enter into finance leases for specific equipment used in manufacturing, in which the Company takes ownership of the asset upon the end of the lease. The Company records its finance leases within Property, plant and equipment, net, Current portion of long-term debt and Long-term debt on the accompanying Consolidated Balance Sheets. The Company’s finance leases and related depreciation and interest expense, cash flows and impact on the Company’s consolidated financial statements were not material individually or in the aggregate as of and for the years ended December 31, 2023, 2022 and 2021.

v3.24.0.1
Acquisitions
12 Months Ended
Dec. 31, 2023
Acquisitions  
Acquisitions

Note 11—Acquisitions

2023 Acquisitions

During the year ended December 31, 2023, the Company completed 10 acquisitions (the “2023 Acquisitions”) for approximately $970.4, net of cash acquired. Five of the acquisitions have been included in the Harsh Environment Solutions segment, three acquisitions have been included in the Interconnect and Sensor Systems segment, and two acquisitions have been included in the Communications Solutions segment. The 2023 Acquisitions were each funded using cash on hand or borrowings under our Commercial Paper Programs, or a combination thereof. One of the 2023 Acquisitions, which closed in the second quarter of 2023, represented a bargain purchase, where the estimated fair value of assets acquired, net of liabilities assumed, exceeded the purchase price. The Company recognized a non-cash gain of $5.4 on the bargain purchase acquisition during the year ended December 31, 2023, which has been recorded separately in the Company’s Consolidated Statements of Income.

As of December 31, 2023, the 2023 Acquisitions resulted in the recognition of $609.4 of goodwill and $181.3 of definite-lived intangible assets, comprised of customer relationships, proprietary technology and acquired backlog, with the remainder of the purchase price being allocated to other identifiable assets acquired and liabilities and noncontrolling interests assumed. These definite-lived intangible assets are being amortized based upon the underlying pattern of economic benefit as reflected by the future net cash inflows, with the acquired customer relationships and proprietary technology having useful lives ranging from 6 to 15 years and the acquired backlog having a useful life of approximately 0.25 years. The excess purchase price over the fair value of the underlying net assets acquired was allocated to goodwill, which primarily represents the value of the assembled workforce along with other intangible assets acquired that do not qualify for separate recognition. The Company expects that approximately $145 of the goodwill recognized from the 2023 Acquisitions will be deductible for tax purposes. The Company is in the process of analyzing and completing the allocation of the fair value of assets acquired and liabilities assumed for these acquisitions. Since the current purchase price allocations are based on preliminary assessments made by management as of December 31, 2023, the acquisition accounting is subject to final adjustments, and it is possible that the final assessments of values may differ from our preliminary assessments. The operating results of the 2023 Acquisitions have been included in the Consolidated Statements of Income for the year ended December 31, 2023 since their respective dates of acquisition. Pro forma financial information, as well as further details regarding the purchase price allocations related to these acquisitions, have not been presented, since the 2023 Acquisitions are not material, either individually or in the aggregate, to the Company’s financial results.

2022 Acquisitions

During the year ended December 31, 2022, the Company completed two acquisitions (the “2022 Acquisitions”) for approximately $288.2, net of cash acquired. The 2022 Acquisitions were funded through a combination of borrowings under the U.S. Commercial Paper Program and cash on hand. One acquisition was included in the Harsh Environment Solutions segment, while the other acquisition was included in the Interconnect and Sensor Systems segment. The Company completed the acquisition accounting, including the analyses of the fair value of assets acquired and liabilities assumed, for all of the 2022 Acquisitions, and each of the final assessments of values did not differ materially from their previous preliminary assessments. The operating results of the 2022 Acquisitions were included in the Consolidated Statements of Income since their respective dates of acquisition. Pro forma financial information, as well as further details regarding the purchase price allocation related to these acquisitions, was not presented, since the 2022 Acquisitions were not material, either individually or in the aggregate, to the Company’s financial results.

2021 Acquisitions

During the year ended December 31, 2021, the Company completed seven acquisitions (the “2021 Acquisitions”) for $2,225.4, net of cash acquired, while also completing the divestiture of the Divested MTS business, as discussed below.  One of the acquisitions was included in the Harsh Environment Solutions segment, three acquisitions were included in the Communications Solutions segment, and three acquisitions were included in the Interconnect and Sensor Systems segment. The Company completed the acquisition accounting, including the analyses of the fair value of assets acquired and liabilities assumed, for all of the 2021 Acquisitions, and each of the final assessments of values did not differ materially from their previous preliminary assessments. The operating results of the 2021 Acquisitions were included in the Consolidated Statements of Income since their respective dates of acquisition. Pro forma financial information, as well as further details regarding the purchase price allocation related to these acquisitions, was not presented, since the 2021 Acquisitions were not material, either individually or in the aggregate, to the Company’s financial results.

Acquisition of MTS Systems Corporation

On December 9, 2020, Amphenol announced that the Company entered into a definitive agreement under which Amphenol would acquire MTS Systems Corporation (Nasdaq: MTSC) (“MTS”) for $58.50 per share in cash. MTS, a leading global supplier of precision sensors, advanced test systems and motion simulators, was historically organized into two business segments: Sensors (“MTS Sensors”) and Test & Simulation (“MTS T&S”). The MTS Sensors business provides the Company with a highly complementary offering of high-technology, harsh environment sensors sold into diverse end markets and applications. The MTS Sensors business has further expanded the Company’s range of sensor and sensor-based products across a wide array of industries and is reported as part of our continuing operations and within our Interconnect and Sensor Systems segment. On January 19, 2021 and prior to the closing of the MTS acquisition, the Company entered into a definitive agreement to sell MTS (including the MTS T&S business, but excluding the MTS Sensors business) to Illinois Tool Works Inc. (“ITW”). Throughout this Annual Report, we refer to MTS (including the MTS T&S business, but excluding the MTS Sensors business) as the “Divested MTS business”.

On April 7, 2021, the Company completed the acquisition of MTS for a total enterprise value of approximately $1,700, net of cash acquired and including the repayment of all outstanding debt and certain liabilities. The MTS acquisition was funded through a combination of borrowings under the U.S. Commercial Paper Program and cash on hand. At closing, the Company paid approximately $1,300, net of cash acquired, for 100% of the common stock of MTS, including certain liabilities settled at closing, which was reflected within Net cash used in investing activities from continuing operations in the accompanying Consolidated Statements of Cash Flow for the year ended December 31, 2021. In addition, the Company also assumed MTS’s then-outstanding $350.0 principal amount of senior notes due August 15, 2027. Shortly after the closing, the Company repaid and settled the MTS senior notes for approximately $387.3, which included accrued interest and a make-whole premium incurred as a result of the early extinguishment of the senior notes. The repayment of the outstanding senior notes, including the make-whole premium and excluding interest, was reflected within Net cash used in financing activities from continuing operations in the accompanying Consolidated Statements of Cash Flow for the year ended December 31, 2021. On December 1, 2021, the Company completed the sale of the Divested MTS business to ITW for approximately $750, net of cash divested and excluding related transaction fees and expenses. After giving effect to the sale of the Divested MTS business as well as the repayment of the aforementioned MTS senior notes as part of the MTS acquisition, the Company paid approximately $950, net of cash acquired and excluding related transaction fees and expenses, for the retained MTS Sensors business. Refer to “Presentation and Sale of the Divested MTS Business” section below for further details related to the Company’s discontinued operations and the completed divestiture of the Divested MTS business.

The purchase price allocation for the MTS Sensors business was performed separately from the Divested MTS business, the latter of which was accounted for as discontinued operations and whose assets acquired, including associated goodwill, and liabilities assumed were reported as current assets held for sale and current liabilities held for sale on the Company’s balance sheet. As a result of the sale of the Divested MTS business on December 1, 2021, the Company completed the acquisition accounting associated with the Divested MTS business and the associated current assets held for sale and current liabilities held for sale were no longer reported on the Company’s Consolidated Balance Sheets as of December 31, 2021.

The retained MTS Sensors business is reported within our Interconnect and Sensor Systems segment. In 2022, the Company completed its analysis of the purchase price allocation of the fair value of the tangible and identifiable intangible assets acquired and liabilities assumed, as part of the acquisition accounting associated with the MTS Sensors business. The final assessment of values for the MTS Sensors business did not differ materially from previous preliminary assessments. The MTS acquisition resulted in the recognition of $738.7 of goodwill, $54.0 of indefinite-lived tradename intangible assets and $178.2 of definite-lived intangible assets, each associated with the MTS Sensors business. The definite-lived intangible assets are comprised of customer relationships, proprietary technology, and backlog of $122.9, $39.1 and $16.2, respectively, and are amortized based upon the underlying pattern of economic benefit with weighted average useful lives of 11 years, 15 years and 0.25 years, respectively. Other than these intangible assets, the remainder of the purchase price was allocated to other identifiable assets acquired and liabilities assumed. As part of acquisition accounting, the Company also recorded $47.0 of deferred tax liabilities associated with certain basis differences, the majority of which the Company recognized for tax purposes and paid in the fourth quarter of 2021 upon the sale of the Divested MTS business. The excess purchase price over the fair value of the underlying assets acquired (net of liabilities assumed) was allocated to goodwill, which primarily represents the value of assembled workforce and the anticipated cost savings and efficiencies associated with the integration of the MTS Sensors business, along with other intangible assets acquired that do not qualify for separate recognition. The Company does not expect any such recognized goodwill associated with the acquisition of the MTS Sensors business to be deductible for tax purposes. The operating results for the MTS Sensors business have been included within continuing operations in the Consolidated Statements of Income since the acquisition date of April 7, 2021, while the operating results for the Divested MTS business were classified and reported as discontinued operations as discussed further below.

Presentation and Sale of the Divested MTS Business

On January 19, 2021 and prior to the closing of the MTS acquisition, the Company entered into a definitive agreement to sell the Divested MTS business to ITW. As a result of the agreement to sell the Divested MTS business to ITW, the Divested MTS business met the discontinued operations reporting criteria and “held for sale” accounting criteria as of the MTS acquisition date of April 7, 2021, and therefore, the Company did not assign the Divested MTS business to any of its three reportable business segments. Accordingly, since the Divested MTS business had never been nor was expected to ever be considered part of our continuing operations, the Company accounted for the operating results and related cash flows associated with the Divested MTS business as discontinued operations in the accompanying Consolidated Statements of Income and Consolidated Statements of Cash Flow, respectively, as of the MTS acquisition date through December 1, 2021, the date of the sale of the Divested MTS business. For the year ended December 31, 2021, the comprehensive income associated with discontinued operations was not material and was not presented separately in the Consolidated Statements of Comprehensive Income. The Company also ceased recording depreciation and amortization on the held for sale assets as of the MTS acquisition date.

As discussed above, the purchase price allocation associated with the Divested MTS business was performed separately from the MTS Sensors business, as the Divested MTS business met the “held for sale” accounting criteria. The assets acquired and liabilities assumed resulting from the purchase price allocation for the Divested MTS business were measured and recorded at fair value less costs to sell, which was considered a Level 3 fair value measurement based on the transaction’s then-expected consideration. Such assets acquired and liabilities assumed were recorded as current assets held for sale and current liabilities held for sale, as separate single line items on the Company’s balance sheet as of the MTS acquisition date through December 1, 2021, the date of the sale of the Divested MTS business. At each reporting period in 2021, the Company reassessed the fair value of these assets held for sale and liabilities held for sale and noted that the carrying value of the disposal group did not exceed its fair value less costs to sell. In addition, the Company assumed a $28.7 contingent consideration liability from the MTS acquisition, which was recognized at fair value as part of acquisition accounting. This contingent consideration was recorded within current liabilities held for sale on the Company’s balance sheet as of the acquisition date. During the third quarter of 2021, the Company made a capital contribution to the Divested MTS business, which in turn used the funding to settle the contingent consideration.

On December 1, 2021, the Company completed the sale of the Divested MTS business to ITW for approximately $750, net of cash divested and excluding related transaction fees and expenses. The proceeds from the sale of the Divested MTS business were included in Net cash provided by investing activities from discontinued operations in the Consolidated Statements of Cash Flow for the year ended December 31, 2021. Amphenol has had no continuing involvement with the Divested MTS business after the completion of the sale. The sale of the Divested MTS business did not result in any significant gain or loss recorded to discontinued operations in the Consolidated Statements of Income for the year ended December 31, 2021.

Acquisition of Halo Technology Limited

On December 1, 2021, the Company completed the acquisition of approximately 97% of the common stock of Halo Technology Limited (“Halo”) for a purchase price of approximately $694, net of cash acquired. The sellers retained a noncontrolling interest of less than 3% in Halo, which includes redeemable features that are outside the control of the Company and therefore, is classified as temporary equity on the Consolidated Balance Sheets as of December 31, 2023 and 2022, as discussed in more detail in Notes 1 and 5 herein. The acquisition was funded with cash on hand. Halo, which is headquartered in the United States (California), is a leading provider of active and passive fiber optic interconnect components, with product offerings that are highly complementary to our existing high-speed and fiber optic interconnect solutions for the communications infrastructure markets. In 2022, the Company completed the acquisition accounting related to the Halo acquisition, specifically associated with the purchase price allocation of the fair value of the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interest assumed. The final assessment of values for the Halo acquisition did not differ materially from previous preliminary assessments. The Halo acquisition resulted in the recognition of $522.1 of goodwill, $29.0 of indefinite-lived tradename intangible assets and $168.0 of definite-lived intangible assets. The definite-lived intangible assets were comprised of customer relationships, proprietary technology, and backlog of $44.0, $115.0 and $9.0, respectively, and are amortized based upon the underlying pattern of economic benefit with weighted average useful lives of 13 years, 15 years and one month, respectively. Other than these intangible assets, the remainder of the purchase price was allocated to other identifiable assets acquired and liabilities and noncontrolling interests (including redeemable noncontrolling interests) assumed. As part of acquisition accounting, the excess purchase price over the fair value of the underlying assets acquired (net of liabilities and noncontrolling interests assumed) was allocated to goodwill, which primarily represents the value of assembled workforce and the anticipated cost savings and efficiencies associated with the integration of Halo, along with other intangible assets acquired that do not qualify for separate recognition. The Company does not expect any such recognized goodwill associated with the Halo acquisition to be deductible for tax purposes. The operating results for Halo were included in the Consolidated Statements of Income since the acquisition date. The acquisition of Halo, which is reported within our Communications Solutions segment, was not material to the Company’s financial results.

Acquisition-related Expenses

In 2023, the Company incurred $34.6 ($30.2 after-tax) of acquisition-related expenses, comprised primarily of external transaction costs associated with the 2023 Acquisitions, as well as the amortization of $12.4 related to the value associated with acquired backlog resulting from three of the 2023 Acquisitions. In 2022, the Company incurred $21.5 ($18.4 after-tax) of acquisition-related expenses, comprised primarily of the amortization of $12.0 related to the value associated with acquired backlog resulting from the 2022 Acquisitions, along with external transaction costs. In 2021, the Company incurred $70.4 ($57.3 after-tax) of acquisition-related expenses, comprised primarily of transaction, severance, restructuring and certain non-cash purchase accounting costs related to the MTS acquisition in the second quarter of 2021, along with external transaction costs and certain non-cash purchase accounting costs related to the Halo acquisition in the fourth quarter of 2021. Such acquisition-related expenses are presented separately in the accompanying Consolidated Statements of Income.

v3.24.0.1
Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2023
Goodwill and Other Intangible Assets  
Goodwill and Other Intangible Assets

Note 12—Goodwill and Other Intangible Assets

The changes in the carrying amount of goodwill by segment were as follows:

    

Harsh

    

Interconnect

    

 

Environment

Communications

and Sensor

 

Solutions

Solutions

Systems

Total

 

Goodwill at December 31, 2021

$

1,663.7

$

2,950.1

$

1,763.0

$

6,376.8

Acquisition-related

 

33.6

 

(5.1)

 

161.5

 

190.0

Foreign currency translation

 

(30.2)

 

(36.9)

 

(53.6)

 

(120.7)

Goodwill at December 31, 2022

1,667.1

2,908.1

1,870.9

6,446.1

Acquisition-related

 

334.9

 

68.8

 

208.7

 

612.4

Foreign currency translation

 

7.3

 

0.6

 

26.0

 

33.9

Goodwill at December 31, 2023

$

2,009.3

$

2,977.5

$

2,105.6

$

7,092.4

The increase in goodwill during 2023 was primarily driven by goodwill recognized from the 2023 Acquisitions. The increase in goodwill during 2022 was primarily driven by goodwill recognized from the 2022 Acquisitions, partially offset by foreign currency translation.

Other than goodwill noted above, the Company’s intangible assets as of December 31, 2023 and 2022 were as follows:

December 31, 2023

December 31, 2022

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

10

$

782.6

$

450.6

$

332.0

$

677.0

$

398.3

$

278.7

Proprietary technology

13

 

365.1

 

146.1

219.0

 

310.0

 

123.8

186.2

Backlog and other

1

 

114.1

 

99.4

14.7

 

86.9

 

86.8

0.1

Total intangible assets (definite-lived)

10

1,261.8

696.1

565.7

1,073.9

608.9

465.0

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

$

1,530.9

$

696.1

$

834.8

$

1,343.0

$

608.9

$

734.1

The increase in the gross carrying amount of intangible assets in 2023 was primarily driven by customer relationships and proprietary technology resulting from acquisition accounting associated with certain 2023 Acquisitions. Amortization expense for the years ended December 31, 2023, 2022 and 2021 was approximately $86.0, $81.0 and $86.4, respectively, which included the amortization of acquired backlog of $12.4, $12.0, and $25.2, respectively, resulting from acquisitions in each respective year. As of December 31, 2023, amortization expense relating to the Company’s current intangible assets estimated for each of the next five fiscal years is approximately $93.0 in 2024 (which includes the estimated amortization of acquired backlog resulting from certain acquisitions that closed late in 2023), $68.9 in 2025, $67.3 in 2026, $60.5 in 2027, and $53.2 in 2028.

v3.24.0.1
Reportable Business Segments and International Operations
12 Months Ended
Dec. 31, 2023
Reportable Business Segments and International Operations  
Reportable Business Segments and International Operations

Note 13—Reportable Business Segments and International Operations

Since January 1, 2022, the Company aligns its businesses into three reportable business segments: (i) Harsh Environment Solutions, (ii) Communications Solutions and (iii) Interconnect and Sensor Systems. This segment structure reflects (i) the manner in which the Chief Operating Decision Maker (“CODM”), who is the Company’s Chief Executive Officer, regularly assesses information for decision-making purposes, including the allocation of resources, and (ii) how the Company operates its businesses, assesses performance, and communicates results and strategy, among other items, to the Board and its stockholders. The Company has three segment managers to lead their respective reportable business segments, each reporting directly to the Chief Executive Officer. The Company organizes its reportable business segments based on the manner in which management evaluates the performance of the Company, combined with the nature of the individual business activities and the product-based solutions offered.

The following are the Company’s three reportable business segments:

Harsh Environment Solutions – the Harsh Environment Solutions segment designs, manufactures and markets a broad range of ruggedized interconnect products, including connectors and interconnect systems, printed circuits and printed circuit assemblies and other products for use in the industrial, defense, commercial aerospace, automotive, mobile networks and information technology and data communications end markets.

Communications Solutions – the Communications Solutions segment designs, manufactures and markets a broad range of connector and interconnect systems, including high speed, radio frequency, power, fiber optic and other products, together with antennas, for use in the information technology and data communications, mobile devices, industrial, mobile networks, broadband communications, automotive, commercial aerospace and defense end markets.

Interconnect and Sensor Systems – the Interconnect and Sensor Systems segment designs, manufactures and markets a broad range of sensors, sensor-based systems, connectors and value-add interconnect systems used in the automotive, industrial, information technology and data communications, mobile networks, defense and commercial aerospace end markets.

The accounting policies of the segments are the same as those for the Company as a whole, as described in Note 1 herein. The Company evaluates the performance of the segments and allocates resources to each of them based on, among other things, profit or loss from operations before certain corporate and other related items such as interest, stock-based compensation expense, income taxes, amortization related to certain intangible assets and nonrecurring gains and losses. The Company also incurs general corporate expenses and costs which are not allocated to the reportable business

segments but have been included in “Corporate / Other” in the following tables for reconciliation purposes. Assets are reviewed by the CODM on a consolidated basis and therefore are not presented by reportable business segment.

Net sales by segment for the years ended December 31, 2023, 2022 and 2021 are as follows:

    

External

Intersegment

2023

2022

2021

2023

2022

2021

Harsh Environment Solutions

 

$

3,530.8

$

3,107.2

$

2,752.2

$

90.8

$

78.1

$

70.6

Communications Solutions

4,912.8

5,652.4

4,832.1

50.2

79.4

75.0

Interconnect and Sensor Systems

4,111.1

3,863.4

3,292.0

18.2

17.2

23.7

Consolidated Net sales

$

12,554.7

$

12,623.0

$

10,876.3

$

159.2

$

174.7

$

169.3

Segment operating income and the reconciliation of segment operating income to consolidated income from continuing operations before income taxes for the years ended December 31, 2023, 2022 and 2021 are as follows:

2023

2022

2021

Segment operating income:

Harsh Environment Solutions

$

943.9

$

801.6

$

708.2

Communications Solutions

1,063.5

1,245.7

1,023.3

Interconnect and Sensor Systems

753.7

716.5

588.1

Total segment operating income

2,761.1

2,763.8

2,319.6

Corporate / Other:

Stock-based compensation expense

(99.0)

(89.5)

(83.0)

Acquisition-related expenses

(34.6)

(21.5)

(70.4)

Other operating expenses

(67.9)

(67.0)

(61.1)

Interest expense

(139.5)

(128.4)

(115.5)

Gain on bargain purchase acquisition

5.4

Other income (expense), net

29.3

10.0

(0.4)

Income from continuing operations before income taxes

$

2,454.8

$

2,467.4

$

1,989.2

Depreciation and amortization expense by segment for the years ended December 31, 2023, 2022 and 2021 is as follows:

2023

2022

2021

Harsh Environment Solutions

 

$

91.0

$

78.2

$

73.2

Communications Solutions

177.0

183.7

179.2

Interconnect and Sensor Systems

131.1

124.5

136.1

Corporate / Other

7.3

6.5

7.1

Total

$

406.4

$

392.9

$

395.6

Net sales by geographic area for the years ended December 31, 2023, 2022 and 2021 and long-lived assets by geographic area as of December 31 were as follows:

    

2023

    

2022

    

2021

Net sales

United States

$

4,405.4

$

4,155.2

$

3,155.9

China

 

2,884.0

 

3,265.0

 

3,044.4

Other foreign locations

 

5,265.3

 

5,202.8

 

4,676.0

Total

$

12,554.7

$

12,623.0

$

10,876.3

Long-lived assets(1)

United States

$

442.6

$

386.1

$

362.1

China

 

455.5

 

470.1

 

451.7

Other foreign locations

 

718.1

 

637.6

 

606.4

Total

$

1,616.2

$

1,493.8

$

1,420.2

(1)

Long-lived assets included in this table are comprised of property, plant and equipment, net, and operating lease right-of-use assets for all years presented.

Disaggregation of Net Sales

The following tables show our net sales disaggregated into categories the Company considers meaningful to depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors for the years ended December 31, 2023, 2022 and 2021:

Net sales by sales channel:

2023

2022

2021

End customers and contract manufacturers:

Harsh Environment Solutions

$

2,581.6

$

2,176.4

$

1,980.7

Communications Solutions

3,933.2

4,469.0

3,889.0

Interconnect and Sensor Systems

 

3,947.4

 

3,724.6

 

3,168.5

$

10,462.2

$

10,370.0

$

9,038.2

Distributors and resellers:

Harsh Environment Solutions

$

949.2

$

930.8

$

771.5

Communications Solutions

979.6

1,183.4

943.1

Interconnect and Sensor Systems

 

163.7

 

138.8

 

123.5

$

2,092.5

$

2,253.0

$

1,838.1

Total Net sales

$

12,554.7

$

12,623.0

$

10,876.3

Net sales by geography:

2023

2022

2021

United States:

Harsh Environment Solutions

$

1,790.5

$

1,558.2

$

1,352.2

Communications Solutions

1,395.8

1,495.3

958.2

Interconnect and Sensor Systems

 

1,219.1

 

1,101.7

 

845.5

$

4,405.4

$

4,155.2

$

3,155.9

China:

Harsh Environment Solutions

$

351.2

$

437.5

$

437.1

Communications Solutions

1,669.4

1,939.6

1,914.6

Interconnect and Sensor Systems

 

863.4

 

887.9

 

692.7

$

2,884.0

$

3,265.0

$

3,044.4

Other foreign locations:

Harsh Environment Solutions

$

1,389.1

$

1,111.5

$

962.9

Communications Solutions

1,847.6

2,217.5

1,959.3

Interconnect and Sensor Systems

 

2,028.6

 

1,873.8

 

1,753.8

$

5,265.3

$

5,202.8

$

4,676.0

Total Net sales

$

12,554.7

$

12,623.0

$

10,876.3

Net sales by geographic area are based on the customer location to which the product is shipped. No single customer accounted for 10% or more of the Company’s net sales during the years ended December 31, 2023, 2022 and

2021. It is impracticable to disclose net sales by product or group of products. For further discussion related to the Company’s policies surrounding revenue recognition, refer to Note 1 herein.

Reportable Business Segments Prior to 2022

Prior to 2022 and through December 31, 2021, the Company operated through two reportable business segments:

Interconnect Products and Assemblies – The Interconnect Products and Assemblies segment primarily designed, manufactured and marketed a broad range of connector and connector systems, value-add products and other products, including antennas and sensors, used in a wide range of applications in a diverse set of end markets.

Cable Products and Solutions – The Cable Products and Solutions segment primarily designed, manufactured and marketed cable, value-add products and components for use primarily in the broadband communications and information technology markets, as well as certain applications in other markets.

Businesses previously reported in the Interconnect Products and Assemblies segment were aligned with one of the Company’s three segments, while all businesses previously reported in the Cable Products and Solutions segment were aligned with the Communications Solutions segment.

v3.24.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2023
Commitments and Contingencies  
Commitments and Contingencies

Note 14—Commitments and Contingencies

The Company is party to a number of legal and/or regulatory actions arising out of the normal course of its business. The Company records a loss contingency liability when, in the opinion of management after seeking legal advice, a loss is considered probable and the amount can be reasonably estimated. Based on information currently available and management’s evaluation of such information, the Company does not believe that the resolution of any existing legal or regulatory action is expected to have a material adverse effect on the Company’s financial condition, results of operations or cash flows. The Company’s legal costs associated with defending itself are recorded to expense as incurred.

Certain operations of the Company are subject to environmental laws and regulations that govern the discharge of pollutants into the air and water, as well as the handling and disposal of solid and hazardous wastes. The Company believes that its operations are currently in substantial compliance with applicable environmental laws and regulations and that the costs of continuing compliance will not have a material adverse effect on the Company’s financial condition, results of operations or cash flows.

The Company also has purchase obligations related to commitments to purchase certain goods and services. At December 31, 2023, the Company had purchase commitments of $932.4 in 2024, $28.1 in 2025 and 2026, combined, and $8.2 beyond 2026.

v3.24.0.1
Subsequent Events
12 Months Ended
Dec. 31, 2023
Subsequent Events  
Subsequent Events

Note 15—Subsequent Events

On January 30, 2024, the Company entered into a definitive stock purchase agreement by and between the Company and Carlisle Companies Incorporated (“Carlisle”), agreeing to acquire the Carlisle Interconnect Technologies (“CIT”) business of Carlisle for an aggregate purchase price of $2,025 in cash, subject to customary post-closing adjustments. The acquisition is expected to be completed by the end of the second quarter of 2024 and is subject to certain regulatory approvals and other customary closing conditions. The Company expects to finance the CIT acquisition through a combination of cash on hand and debt financing, which could include borrowings under the Company’s existing credit and/or U.S. Commercial Paper Program. CIT, headquartered in St. Augustine, FL, is a leading global supplier of harsh environment interconnect solutions primarily to the commercial aerospace, defense and industrial end markets. CIT’s wide range of products include wire and cable, cable assemblies, contacts, connectors and sensors, which, management believes, are highly complementary to Amphenol’s existing interconnect and sensor solutions. If and when the acquisition is consummated, the Company expects to report the CIT business within its Harsh Environment Solutions segment.

v3.24.0.1
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
12 Months Ended
Dec. 31, 2023
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS  
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II

AMPHENOL CORPORATION AND SUBSIDIARIES

VALUATION AND QUALIFYING ACCOUNTS

For the years ended December 31, 2023, 2022 and 2021

(Dollars in millions)

    

Balance at

    

Charged to

    

    

Balance at

 

beginning

cost and

Additions

end of

 

of period

expenses

(Deductions)

period

 

Allowance for doubtful accounts:

Year ended December 31, 2023

$

63.9

$

13.4

$

(8.9)

$

68.4

Year ended December 31, 2022

 

43.5

20.2

0.2

63.9

Year ended December 31, 2021

 

44.8

1.5

(2.8)

 

43.5

Valuation allowance on deferred tax assets:

Year ended December 31, 2023

$

42.2

$

3.4

$

1.0

$

46.6

Year ended December 31, 2022

44.9

(1.1)

(1.6)

42.2

Year ended December 31, 2021

 

40.1

6.3

(1.5)

44.9

v3.24.0.1
Pay vs Performance Disclosure - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pay vs Performance Disclosure      
Net Income (Loss) $ 1,928.0 $ 1,902.3 $ 1,590.8
v3.24.0.1
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2023
Trading Arrangements, by Individual  
Rule 10b5-1 Arrangement Adopted false
Non-Rule 10b5-1 Arrangement Adopted false
Rule 10b5-1 Arrangement Terminated false
Non-Rule 10b5-1 Arrangement Terminated false
v3.24.0.1
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2023
Business

Business

Amphenol Corporation (together with its subsidiaries, “Amphenol,” the “Company,” “we,” “our,” or “us”) is one of the world’s largest designers, manufacturers and marketers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. The Company sells its products to customers worldwide.

The Company aligns its businesses into the following three reportable business segments:

Harsh Environment Solutions – the Harsh Environment Solutions segment designs, manufactures and markets a broad range of ruggedized interconnect products, including connectors and interconnect systems, printed circuits and printed circuit assemblies and other products for use in the industrial, defense, commercial aerospace, automotive, mobile networks and information technology and data communications end markets.

Communications Solutions – the Communications Solutions segment designs, manufactures and markets a broad range of connector and interconnect systems, including high speed, radio frequency, power, fiber optic and other products, together with antennas, for use in the information technology and data communications, mobile devices, industrial, mobile networks, broadband communications, automotive, commercial aerospace and defense end markets.

Interconnect and Sensor Systems – the Interconnect and Sensor Systems segment designs, manufactures and markets a broad range of sensors, sensor-based systems, connectors and value-add interconnect systems used in the automotive, industrial, information technology and data communications, mobile networks, defense and commercial aerospace end markets.

The Company began reporting under these reportable segments in connection with its Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2022 and for each quarterly and annual period thereafter. All segment information throughout the Consolidated Financial Statements and Notes to Consolidated Financial Statements is presented in accordance with the three reportable business segments. Refer to Note 13 herein for further details related to the Company’s reportable business segments.

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP” or “GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The Company’s management evaluates these significant estimates and assumptions that affect the consolidated financial statements and related disclosures. Estimates used in calculating certain accounts, including but not limited to, the allowance for doubtful accounts, provisions for slow-moving or obsolete inventory, revenue recognition, income taxes and related valuation allowances, goodwill and intangible assets from acquisitions, and pensions, are developed based on historical experience or other assumptions that the Company believes to be reasonable. Actual results could differ from those estimates.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements are prepared in U.S. dollars and include the accounts of the Company and its wholly owned and majority-owned subsidiaries. Intercompany account balances and transactions have been eliminated in consolidation. The results of companies acquired are included in the Consolidated Financial Statements from the

effective date of acquisition. Similarly, the results of companies divested are included in the Consolidated Financial Statements during the period of Amphenol’s ownership through the date of the divestiture.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents consist of cash and liquid investments with an original maturity of three months or less. The carrying amounts approximate fair values of those instruments, the majority of which are in non-U.S. bank accounts.

Short-term and Long-term Investments

Short-term and Long-term Investments

Short-term investments primarily consist of certificates of deposit with original or remaining maturities of twelve months or less. Long-term investments primarily consist of certificates of deposit with original and remaining maturities of more than twelve months. The carrying amounts of these short-term and long-term investments approximate their respective fair values, the vast majority of which are in non-U.S. bank accounts. Short-term investments are presented separately as its own line item on the Consolidated Balance Sheets. Long-term investments are recorded in Other long-term assets on the Consolidated Balance Sheets.

Accounts Receivable

Accounts Receivable

Accounts receivable is stated at net realizable value. The Company regularly reviews accounts receivable balances and adjusts the receivable reserves as necessary whenever events or circumstances indicate the carrying value may not be recoverable. The Company assesses and records an allowance for expected credit losses on accounts receivable.

Inventories

Inventories

Inventories are stated at the lower of cost or net realizable value. The principal components of cost included in inventories are materials, direct labor and manufacturing overhead. The Company regularly reviews inventory quantities on hand, evaluates the realizability of inventories and adjusts the carrying value as necessary based on forecasted product demand. Provisions for slow-moving and obsolete inventory are made based on historical experience and product demand.

Depreciable Assets

Depreciable Assets

Property, plant and equipment are carried at cost less accumulated depreciation. Depreciation is recorded on a straight-line basis over the respective asset lives determined on a composite basis by asset group or on a specific item basis using the estimated useful lives of such assets, which generally range from 3 to 12 years for machinery and equipment and office equipment and 20 to 40 years for buildings. Leasehold building improvements are amortized over the shorter of the remaining lease term or estimated useful life of such improvements. The Company periodically reviews fixed asset lives. Depreciation expense is included in both Cost of sales and Selling, general and administrative expenses in the Consolidated Statements of Income, dependent upon the specific categorization and use of the underlying asset being depreciated. The Company assesses the impairment of property, plant and equipment subject to depreciation, whenever events or changes in circumstances indicate the carrying value may not be recoverable. Factors the Company considers important, which could trigger an impairment review, include significant changes in the manner of the use of the asset, significant changes in historical trends in operating performance, significant changes in projected operating performance, and significant negative economic trends. There have been no impairments recorded in 2023, 2022 or 2021 as a result of such reviews.

Leases

Leases

Amphenol is a lessee of buildings, office space, automobiles and equipment throughout the world, nearly all of which are classified as operating leases expiring at various dates. The Company determines if an arrangement qualifies as a lease at lease inception. Lease right-of-use (“ROU”) assets and lease liabilities for existing operating leases are recognized on the Consolidated Balance Sheets. Operating lease liabilities are recorded based on the present value of the future lease payments over the lease term, assessed as of the commencement date. The Company’s real estate leases, which are comprised primarily of manufacturing facilities, warehouses and sales offices, represent the vast majority of our operating lease liabilities and generally have a lease term between 2 and 12 years. The remaining leases primarily consist of machinery and equipment used in production, office equipment and vehicles, each with various lease terms. The vast majority of our leases are comprised of fixed lease payments, with a small percentage of the Company’s real

estate leases including lease payments tied to a rate or index which may be subject to variability. Certain real estate leases also include executory costs such as common area maintenance (non-lease component), as well as property insurance and property taxes (non-components). We account for the lease and non-lease components as a single lease component for our real estate leases. Lease payments, which may include lease components, non-lease components and non-components, are included in the measurement of the Company’s lease liabilities to the extent that such payments are either fixed amounts or variable amounts based on a rate or index (fixed in substance) as stipulated in the lease contract. Any actual costs in excess of such amounts are expensed as incurred as variable lease cost.

Substantially all of our lease agreements do not specify an implicit borrowing rate, and as such, the Company utilizes its incremental borrowing rate by lease term, in order to calculate the present value of our future lease payments. The discount rate represents a risk-adjusted rate on a secured basis, and is the rate at which the Company would borrow funds to satisfy the scheduled lease liability payment streams commensurate with the lease term. For new or renewed leases, the discount rate is determined using available data at lease commencement and based on the lease term including any reasonably certain renewal periods.

Some of our lease agreements, primarily related to real estate, include options for the Company to either renew (extend) or early terminate the lease. Leases with renewal options allow the Company to extend the lease term typically between 1 and 6 years. Renewal options are reviewed at lease commencement to determine if such options are reasonably certain of being exercised, which could impact the lease term. When determining if a renewal option is reasonably certain of being exercised, the Company considers several factors, including but not limited to, the significance of leasehold improvements incurred on the property, whether the asset is difficult to replace, or specific characteristics unique to the particular lease that would make it reasonably certain that we would exercise such option. In most cases and unless there is an economic, financial or business reason to do so, the Company has concluded that renewal and early termination options are not reasonably certain of being exercised by the Company (and thus not included in our ROU asset and lease liability).

Refer to Note 10 herein for further information related to our lease portfolio.

Goodwill

Goodwill

Goodwill represents the excess purchase cost over the fair value of net assets acquired in business combinations. As a result of the change in the reporting segment structure that went in effect on January 1, 2022, the Company utilized the relative fair value allocation approach to reallocate the historical goodwill associated with the previous Interconnect Products and Assemblies segment, while the historical goodwill associated with the previous Cable Products and Solutions segment was allocated in full to the Communications Solutions segment. The Company concluded that there were no events or changes in circumstances, immediately prior to the reporting unit change, that would indicate that either of the Company’s legacy reporting unit’s carrying amount may be impaired. Therefore, no goodwill impairment assessment was deemed necessary related to the legacy reporting units prior to the change.

The Company continues to perform its evaluation for the impairment of goodwill associated with the Company’s reporting units on an annual basis as of each July 1, or more frequently if an event occurs or circumstances change that would indicate that a reporting unit’s carrying amount may be impaired. The Company reviews its reporting unit structure each year, or more frequently based on changes in our organization. The Company continues to define its reporting units as the three reportable business segments. Prior to the segment structure change and through December 31, 2021, the Company then defined its reporting units as the two reportable business segments “Interconnect Products and Assemblies” and “Cable Products and Solutions”.

In 2023 and 2022, the annual goodwill impairment assessment was performed on the Company’s three reporting units, while in 2021, the Company performed its annual assessment on the historic two reporting units that were then in effect. In the third quarter of 2023 and 2022, as part of its annual evaluations, the Company utilized the option to first assess qualitative factors to determine whether it was necessary to perform the quantitative goodwill impairment assessment. As part of these assessments, the Company reviews qualitative factors, which include, but are not limited to, economic, market and industry conditions, as well as the financial performance of each reporting unit. In accordance with applicable guidance, an entity is not required to calculate the fair value of a reporting unit if, after assessing these qualitative factors, the Company determines that it is more likely than not that the fair value of each of its reporting units is greater than its respective carrying amount. As of July 1, 2023 and 2022, the Company determined that it was more likely than not that the fair value of each of its reporting units exceeded its respective carrying amount and, therefore, a

quantitative assessment was not required. As a result, no goodwill impairment resulted from the assessments as of July 1, 2023 and 2022.

The Company has not recognized any goodwill impairment in 2023, 2022 or 2021 in connection with its annual impairment assessments. Refer to Note 12 herein for further details related to the carrying amount of goodwill by segment.

Intangible Assets

Intangible Assets

Other than goodwill, intangible assets primarily consist of customer relationships, proprietary technology, acquired backlog and license agreements and are generally amortized over the estimated periods of benefit. The fair value associated with acquired identifiable intangible assets are generally valued based on discounted cash flow analyses, independent appraisals and certain estimates made by management. The Company assesses and reviews its identifiable intangible assets, subject to amortization, for potential impairment whenever events or changes in circumstances indicate the intangible asset’s carrying amount may not be recoverable. Factors the Company considers important, which could trigger an impairment review, include significant changes in the manner of the use of the asset, changes in historical trends in operating performance, significant changes in projected operating performance, anticipated future cash flows and significant negative economic trends. Any indefinite-lived intangible assets that are not subject to amortization, which are comprised of certain trade names, are reviewed at least annually for impairment. In the third quarter of 2023, the Company performed its annual assessment of these identifiable indefinite-lived intangible assets.  Based on its assessment, the Company determined that it was more likely than not that the fair value of the indefinite-lived intangible assets exceeded their respective carrying amounts. There has been no impairment associated with the Company’s intangible assets in 2023, 2022 or 2021 as a result of such reviews.

Acquisitions

Acquisitions

The Company accounts for acquisitions using the acquisition method of accounting, which requires that assets acquired and liabilities assumed be recognized at fair value as of the acquisition date. The purchase price of acquisitions is allocated to the tangible and identifiable intangible assets acquired and liabilities and noncontrolling interests assumed based on estimated fair values, and any excess purchase price over the identifiable assets acquired and liabilities assumed is recorded as goodwill. Any subsequent adjustments to the purchase price allocation prior to the completion of the measurement period will be reflected as an adjustment to goodwill in the period in which the adjustments are identified. The Company may use independent valuation specialists to assist in determining the estimated fair values of assets acquired and liabilities assumed, which could require certain significant management assumptions and estimates.

Discontinued Operations and Held for Sale Accounting

Discontinued Operations and Held for Sale Accounting

The Company reports a component of an entity or group of components of an entity as a discontinued operation and held for sale upon acquisition, if the Company has (i) executed a plan to sell the business as of the acquisition date or (ii) has begun to formulate a plan to sell the business and either currently meets or expects to meet the held for sale criteria within three months. An entity meets the held for sale criteria when (a) management, having the authority to approve the action, commits to a plan to sell the discontinued operation, the plan of which is unlikely to have any significant changes or to be withdrawn, (b) the completed sale is probable within one year, and (c) an active program to locate a buyer has been initiated with the operation actively marketed for sale at a price that is reasonable in relation to its current fair value and for immediate sale in its present condition. The assets acquired and liabilities assumed from an entity that qualifies for held for sale accounting are measured and recorded at fair value less costs to sell, and are recorded as current assets held for sale and current liabilities held for sale when the planned sale is expected to close within one year. The Company separately accounts for the operating results and related cash flows associated with discontinued operations until such operations are divested; such discontinued operations are reported separately from the operating results and related cash flows associated with continuing operations in the accompanying Consolidated Financial Statements. For further information related to the Company’s discontinued operations, refer to Note 11 herein.

Revenue Recognition

Revenue Recognition

The Company recognizes revenue upon the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for such goods or services. The vast majority of our sales are recognized when products are shipped from our facilities or delivered to our customers, depending on the respective contractual terms. A nominal portion of our contracts have revenue recognized over time as

control of the goods transfers, rather than when the goods are delivered, and title, risk and reward of ownership are passed to the customer, since they have no alternative use and for which the Company has an enforceable right to payment, including a reasonable profit margin, from the customer for performance completed to date. Refer to Note 13 herein for further discussion regarding the Company’s disaggregation of net sales.

The Company’s primary source of revenues consist of product sales to either end customers and their appointed contract manufacturers (including original equipment manufacturers) or to distributors, and the vast majority of our sales are recognized at a point-in-time under the core principle of recognizing revenue when control transfers to the customer. Revenues are derived from contracts with customers, which in most cases are customer purchase orders that may be governed by master sales agreements. For each contract, the promise to transfer the control of the products, each of which is individually distinct, is considered to be the identified performance obligation. As part of the consideration promised in each contract, the Company evaluates the customer’s credit risk. Our contracts do not have any significant financing components, as payment terms are generally due net 30 to 120 days after delivery. Although products are almost always sold at fixed prices, in determining the transaction price, we evaluate whether the price is subject to refund (due to returns) or adjustment (due to volume discounts, rebates, or price concessions) to determine the net consideration we expect to be entitled to. We allocate the transaction price to each distinct product based on its relative standalone selling price. Taxes assessed by governmental authorities and collected from the customer, including but not limited to sales and use taxes and value-added taxes, are not included in the transaction price.

The vast majority of our sales are recognized at a point-in-time under the core principle of recognizing revenue when control transfers to the customer. With limited exceptions, the Company recognizes revenue at the point in time when we ship or deliver the product from our manufacturing facility to our customer, when our customer accepts and has legal title of the goods, and where the Company has a present right to payment for such goods. Based on the respective contract terms, most of our contracts’ revenues are recognized either (i) upon shipment based on free on board (“FOB”) shipping point or (ii) when the product arrives at its destination. For the years ended December 31, 2023, 2022 and 2021, less than 5% of our net sales were recognized over time, where the associated contracts relate to the sale of goods with no alternative use as they are only sold to a single customer and whose underlying contract terms provide the Company with an enforceable right to payment, including a reasonable profit margin, for performance completed to date, in the event of customer termination. For the contracts recognized over time, we typically record revenue using the input method, based on the materials and labor costs incurred to date relative to the contract’s total estimated costs. This method reasonably depicts when and as control of the goods transfers to the customer, since it measures our progress in producing the goods, which is generally commensurate with this transfer of control. Since we typically invoice our customers at the same time that we satisfy our performance obligations, contract assets and contract liabilities related to our contracts with customers recorded in the Consolidated Balance Sheets were not material as of December 31, 2023 and 2022.

The Company receives customer orders negotiated with multiple delivery dates that may extend across more than one reporting period until the contract is fulfilled, the end of the order period is reached, or a pre-determined maximum order value has been reached. Orders typically fluctuate from quarter to quarter based on customer demand and general business conditions. It is generally expected that a substantial portion of our remaining performance obligations will be fulfilled within three months. Nearly all of our performance obligations are fulfilled within one year. Since our performance obligations are part of contracts that generally have original durations of one year or less, we have not disclosed the aggregate amount of transaction prices associated with unsatisfied or partially unsatisfied performance obligations as of December 31, 2023 and 2022.

Sales to Distributors and Resellers

Sales to certain distributors and resellers are made under terms allowing certain price adjustments and limited rights of return of the Company’s products held in their inventory or upon sale to their end customers. The Company maintains a reserve for unprocessed and estimated future price adjustment claims and returns as a refund liability. The reserve is recorded as a reduction to revenue in the same period that the related revenue is recorded and is calculated based on an analysis of historical claims and returns over a period of time to appropriately account for current pricing and business trends. Similarly, sales returns and allowances are recorded based on historical return rates, as a reduction to revenue with a corresponding reduction to cost of sales for the estimated cost of inventory that is expected to be returned. These reserves were not material to the Consolidated Balance Sheets as of December 31, 2023 and 2022.

Warranty

Standard product warranty coverage, which provides assurance that our products will conform to the contractually agreed-upon specifications for a limited period from the date of shipment, is typically offered, while extended or separately priced warranty coverage is typically not offered. The warranty claim is generally limited to a credit equal to the purchase price or a promise to repair or replace the product for a specified period of time at no additional charge. We estimate our warranty liability based on historical experience, product history, and current trends, and record warranty expense in Cost of sales in the Consolidated Statements of Income. Warranty liabilities and related warranty expense have not been and were not material in the accompanying Consolidated Financial Statements as of and for the years ended December 31, 2023, 2022 and 2021.

Shipping and Handling Costs

The Company accounts for shipping and handling activities related to contracts with customers as a cost to fulfill our promise to transfer control of the related product, including any such costs incurred after the customer has obtained control of the goods. Shipping and handling costs are generally charged to and paid by the majority of our customers as part of the contract. For a nominal portion of our customer contracts, primarily for certain customers in the broadband communications market (a market primarily in the Communications Solutions segment), such costs are not separately charged to the customers. Shipping and handling costs are included in Cost of sales in the accompanying Consolidated Statements of Income.

Contract Assets and Contract Liabilities

The Company records contract assets or contract liabilities depending on the timing of revenue recognition, billings and cash collections on a contract-by-contract basis. Contract assets represent unbilled receivables, which generally arise when revenue recognized over time exceed amounts billed to customers. Contract liabilities represent billings or advanced consideration received from customers in excess of revenue recognized to date. As the Company’s performance obligations are typically less than one year, these amounts are generally recorded as current in the accompanying Consolidated Balance Sheets within Prepaid expenses and other current assets or Other accrued expenses as of December 31, 2023 and 2022. Contract assets and contract liabilities recorded in the Consolidated Balance Sheets were not material as of December 31, 2023 and 2022.

Contract Costs

The Company’s policy is to capitalize any incremental costs incurred to obtain a customer contract, only to the extent that such costs are explicitly chargeable to the customer and the benefit associated with the costs is expected to be longer than one year. Otherwise, such costs are expensed as incurred and recorded within Selling, general and administrative expenses in the accompanying Consolidated Statements of Income. Incremental costs to fulfill customer orders, which are mostly comprised of pre-production and set-up costs, are generally capitalized to the extent such costs are contractually guaranteed to be reimbursed by the customer. Otherwise, such costs are expensed as incurred. Capitalized contract costs to obtain a contract or to fulfill a contract that are not accounted for under other existing accounting standards are recorded as either other current or long-term assets on the accompanying Consolidated Balance Sheets, depending on the timing of when the Company expects to recognize the expense, and are generally amortized consistent with the timing of when transfer of control of the related goods occurs. Such capitalized contract costs were not material as of December 31, 2023 and 2022, and the related amortization expense was not material for the years ended December 31, 2023, 2022 and 2021.

Retirement Pension Plans

Retirement Pension Plans

Costs for retirement pension plans include current service costs and amortization of prior service costs over the average working life expectancy. It is the Company’s policy to fund current pension costs taking into consideration minimum funding requirements and maximum tax deductible limitations. The expense of retiree medical benefit programs is recognized during the employees’ service with the Company. The recognition of expense and the related obligation for retirement pension plans and medical benefit programs is significantly impacted by estimates and assumptions made by management such as discount rates used to value certain liabilities, expected return on assets, mortality projections and future health care costs. The Company uses third-party specialists such as actuaries and investment advisors to assist management in appropriately measuring the expense and obligations associated with pension and other postretirement plan benefits.

Stock-Based Compensation

Stock-Based Compensation

The Company accounts for its stock option, restricted share and phantom stock awards based on the fair value of the award at the date of grant and recognizes compensation expense over the service period that the awards are expected to vest. The Company recognizes expense for stock-based compensation with graded vesting on a straight-line basis over the vesting period of the entire award. Stock-based compensation expense includes the estimated effects of forfeitures, which are adjusted over the requisite service period to the extent actual forfeitures differ or are expected to differ from such estimates.  Changes in estimated forfeitures are recognized in the period of change and impact the amount of expense to be recognized in future periods. The expense incurred for stock-based compensation plans is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Income.

Income Taxes

Income Taxes

Deferred income taxes are provided for revenue and expenses which are recognized in different periods for income tax and financial statement reporting purposes.  The Company recognizes the effects of changes in tax laws and rates on deferred income taxes in the period in which legislation is enacted.  Deferred income taxes are provided on undistributed earnings of foreign subsidiaries in the period in which the Company determines it no longer intends to permanently reinvest such earnings outside the United States.  As of December 31, 2023, the Company has not provided for deferred income taxes on undistributed foreign earnings of approximately $1,350 related to certain geographies, as it is the Company’s intention to permanently reinvest such earnings outside the United States. It is impracticable to calculate the amount of taxes that would be payable if these undistributed foreign earnings were to be repatriated. In addition, the Company remains indefinitely reinvested with respect to its financial statement basis in excess of tax basis of its investments in foreign subsidiaries. It is not practicable to determine the deferred tax liability with respect to such basis differences. Deferred tax assets are regularly assessed for recoverability based on both historical and anticipated earnings levels and a valuation allowance is recorded when it is more likely than not that these amounts will not be recovered.

The tax effects of an uncertain tax position taken or expected to be taken in income tax returns are recognized only if it is “more likely than not” to be sustained on examination by the taxing authorities, based on its technical merits as of the reporting date.  The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate settlement.  The Company includes estimated interest and penalties related to unrecognized tax benefits in the provision for income taxes.

As a result of the U.S. Tax Cuts and Jobs Act of 2017 (the “Tax Act”), the global intangible low-taxed income (“GILTI”) provision imposed a tax on certain earnings of foreign subsidiaries. The Company elected an accounting policy to account for GILTI as a period cost. The U.S. Treasury Department has issued final interpretive guidance relating to certain provisions of the Tax Act and proposed additional guidance related to the same provisions. The Company will account for the impact of additional guidance in the period in which any new guidance is released, if appropriate.

Foreign Currency Translation

Foreign Currency Translation

The financial position and results of operations of the Company’s foreign subsidiaries are measured using local currency as the functional currency. Assets and liabilities of such subsidiaries have been translated into U.S. dollars at current exchange rates and related revenues and expenses have been translated at weighted average exchange rates. The aggregate effect of translation adjustments is included as a component of Accumulated other comprehensive income (loss) within equity. Transaction gains and losses related to operating assets and liabilities are included in Cost of sales in the accompanying Consolidated Statements of Income.

Research and Development

Research and Development

Costs incurred in connection with the development of new products and applications are expensed as incurred. Research and development expenses for the creation of new and improved products and processes were $342.2, $323.6, and $317.7, for the years 2023, 2022 and 2021, respectively, and are included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Income.

Environmental Obligations

Environmental Obligations

The Company recognizes the potential cost for environmental remediation activities when site assessments are made, remediation efforts are probable and related amounts can be reasonably estimated. The Company assesses its environmental liabilities as necessary and appropriate through regular reviews of contractual commitments, site assessments, feasibility studies and formal remedial design and action plans.

Net Income per Common Share

Net Income per Common Share

Basic earnings per common share is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income attributable to Amphenol Corporation by the weighted average number of outstanding common shares, including dilutive common shares, the dilutive effect of which relates to stock options. Diluted earnings per common share assumes the exercise of outstanding dilutive stock options using the treasury stock method. Refer to Note 8 of the Notes to Consolidated Financial Statements for a reconciliation of the basic weighted average common shares outstanding to diluted weighted average common shares outstanding, used in the calculation of earnings per share (basic and diluted) from continuing operations, discontinued operations and for total Amphenol Corporation.

Treasury Stock

Treasury Stock

Treasury stock purchases are recorded at cost. Any issuances from treasury shares are recorded using the weighted average cost method.

Noncontrolling Interests

Noncontrolling Interests

The Company presents noncontrolling interests in consolidated entities as its own caption within equity, separate from the Company’s equity attributable to Amphenol Corporation stockholders, to the extent that such noncontrolling interests do not have redemption features that are not solely within the control of the Company, as discussed below. Net income from continuing operations attributable to noncontrolling interests is classified below net income from continuing operations. Earnings per share is determined after the impact of the noncontrolling interests’ share in net income of the Company.

Redeemable Noncontrolling Interests

Redeemable Noncontrolling Interests

The Company reports noncontrolling interests in the mezzanine (“temporary equity”) section, between liabilities and equity, of the Consolidated Balance Sheets, to the extent that such noncontrolling interests have redemption features, such as a put option, that is redeemable at a fixed or determinable price on a fixed or determinable date at the option of the holder, or upon the occurrence of an event that is not solely within the control of the Company. Due to its redeemable features that are outside the control of the Company, the redeemable noncontrolling interest is and will continue to be reported in the mezzanine section in the Consolidated Balance Sheets for as long as the put option is exercisable by the option holder. The carrying amount of the redeemable noncontrolling interest, initially valued at fair value as part of acquisition accounting, is adjusted each reporting period to equal the greater of the (i) redemption value or (ii) carrying value of the noncontrolling interest, adjusted each reporting period for income or loss attributable to the noncontrolling interest and any distributions made to date. The redemption value is generally calculated based on a multiple of earnings. Any measurement adjustments, if applicable, to the redeemable noncontrolling interest are recognized in Additional paid-in capital in the Consolidated Balance Sheets. Refer to Note 5 herein for further details related to the redeemable noncontrolling interests.

Derivative Financial Instruments

Derivative Financial Instruments

The Company records each of its derivatives at fair value within the accompanying Consolidated Balance Sheets, and the respective accounting treatment for each derivative is based on its hedge designation. We do not enter into derivative financial instruments for trading or speculative purposes, and our derivative financial instruments are with large financial institutions with strong credit ratings. As of December 31, 2023, the Company does not have any significant concentration of exposure with any one counterparty. Refer to Note 5 herein for further discussion of our derivative financial instruments.

Cash Flow Hedges

From time to time, the Company utilizes derivative financial instruments in the management of interest rate and foreign currency exposures. Such cash flow hedges include foreign exchange forward contracts to hedge exposure to foreign currency exchange rate fluctuations for certain transactions denominated in foreign currencies. As of December 31, 2023 and 2022, there were no outstanding cash flow hedge contracts. Gains and losses on derivatives designated as cash flow hedges resulting from changes in fair value are recorded in Accumulated other comprehensive income (loss), and subsequently reflected in Cost of sales in the Consolidated Statements of Income in a manner that matches the timing of the actual income or expense of such instruments with that of the hedged transaction. Any ineffective portion of the change in the fair value of designated hedging instruments is included in the Consolidated Statements of Income. Cash flows associated with cash flow hedges are classified and reported consistent with the cash flows associated with the underlying hedged item.

Net Investment Hedges

The Company is exposed to variability in the U.S. dollar equivalent of the net investments in our foreign subsidiaries and, by extension, the U.S. dollar equivalent of any foreign earnings repatriated to the U.S. due to potential changes in foreign currency exchange rates. As a result, from time to time, the Company enters into foreign exchange forward contracts to hedge the net investments in certain foreign subsidiaries from which we expect to repatriate earnings to the United States. As of December 31, 2023, there were no outstanding net investment hedge contracts. As of December 31, 2023 and 2022, the aggregate notional value of our outstanding net investment hedge contracts was nil and $75, respectively. For such instruments that are designated and qualify as a net investment hedge, the effective portion of the hedging instrument’s gain or loss is reported as a component of other comprehensive income (loss) and recorded in Accumulated other comprehensive income (loss) on the Consolidated Balance Sheets. The gain or loss will be subsequently reclassified into net earnings if the net investment in the hedged foreign operation is either sold or substantially liquidated. Cash flows associated with net investment hedges are classified and reported within investing activities in the Consolidated Statements of Cash Flow. Cash flows associated with our net investment hedges were not material for the years ended December 31, 2023, 2022 and 2021.

Non-Designated Derivatives

The Company enters into certain derivative financial instruments, from time to time, that are not designated as hedging instruments. The Company enters into such foreign exchange forward contracts to reduce and minimize the impact of foreign currency fluctuations arising from the change in fair value of certain foreign currency denominated assets and liabilities. These non-designated derivative instruments are adjusted to fair value each period through earnings, within the financial statement line item to which the derivative instrument relates. For each of the three years ended December 31, 2023, such non-designated derivative instruments, including their impact to the Consolidated Statements of Income, were not material to the Company. Cash flows associated with non-designated hedges are classified and reported consistent with the cash flows associated with the underlying hedged item.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In October 2021, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”), which amends ASC 805 by requiring acquiring entities to apply ASC 606 to recognize and measure contract assets and contract liabilities in a business combination. The intent of ASU 2021-08 is to address diversity in practice and improve comparability for both the recognition and measurement of acquired revenue contracts by providing (i) guidance on how to determine whether a contract liability is recognized by the acquirer in a business combination and (ii) specific guidance on how to recognize and measure contract assets and contract liabilities from revenue contracts in a business combination. ASU 2021-08 and its amendments were effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2022, and the amendments should be applied prospectively to business combinations occurring on or after the effective date of the amendments. The Company adopted ASU 2021-08 on January 1, 2023. ASU 2021-08 did not have a material impact on our acquisitions during 2023, and its impact on our financial condition, results of operations or cash flows going forward will be dependent upon the nature of any future business combinations.

In September 2022, the FASB issued ASU No. 2022-04, Liabilities – Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations (“ASU 2022-04”), which amends ASC 405 by requiring

entities to provide more detailed disclosures regarding supplier finance programs used in connection with the purchase of goods and services. The intent of ASU 2022-04 is to enhance transparency of these programs by requiring entities to disclose (i) the key terms of the program(s), including the payment terms and assets pledged as security or other forms of guarantees, (ii) the amount of obligations outstanding at the end of the reporting period and a description of where those obligations are presented on the balance sheet, and (iii) annual rollforward information of the activity of such obligations during the reporting period. ASU 2022-04 is effective for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2022, with the exception of the disclosure of rollforward information, which will be effective for fiscal years beginning after December 15, 2023. Disclosure requirements under ASU 2022-04 must be applied retrospectively covering each period for which a balance sheet is presented, with the exception of the rollforward information which shall be applied prospectively. The Company completed its evaluation of ASU 2022-04, which did not have a material impact on its consolidated financial statements and disclosures.

In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures (“ASU 2023-07”), which amends ASC 280. The intent of ASU 2023-07 is to improve the disclosures around a public entity’s reportable segments and address requests from investors for additional, more detailed information about a reportable segment’s expenses, by requiring entities to disclose on an annual and interim basis: (i) significant segment expenses that are regularly provided to the Chief Operating Decision Maker (“CODM”) and included within each reported measure of segment profit or loss and (ii) an amount for other segment items by reportable segment and a description of its composition, which represents the difference between segment revenue less segment expenses disclosed under the significant expense principle and each reported measure of segment profit or loss. Furthermore, entities will be required to: (i) provide all annual disclosures about a segment’s profit or loss and assets currently required under ASC 280 on an interim basis as well, (ii) clarify that an entity is not precluded from reporting additional measures of a segment’s profit or loss that are used by the CODM in assessing segment performance and deciding how to allocate resources, and (iii) disclose the title and position of the CODM and an explanation of how the CODM uses the reported measures of segment profit or loss in assessing segment performance and deciding how to allocate resources. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the potential impact of ASU 2023-07 on its consolidated financial statements and disclosures.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures (“ASU 2023-09”). The intent of ASU 2023-09 is to improve the disclosures around a company’s rate reconciliation information and certain types of income taxes companies are required to pay. Specifically, these new disclosure requirements will provide more transparency regarding income taxes companies pay in the United States and other countries, along with more disclosure around a company’s rate reconciliation, among other new disclosure requirements, such that users of financial statements can get better information about how the operations, related tax risks, tax planning and operational opportunities of companies affect their effective tax rates and future cash flow prospects. ASU 2023-09 is effective for annual fiscal years beginning after December 15, 2024, with early adoption permitted for annual financial statements that have not yet been issued or made available for issuance. The amendments under ASU 2023-09 should be applied on a prospective basis, although retrospective application is permitted. The Company is currently evaluating the potential impact of ASU 2023-09 on its consolidated financial statements and disclosures.

Real Estate Leases [Member]  
Separation of Lease and Nonlease Components We account for the lease and non-lease components as a single lease component for our real estate leases.
v3.24.0.1
Inventories (Tables)
12 Months Ended
Dec. 31, 2023
Inventories  
Schedule of Inventories

The components of Inventories are comprised of:

December 31, 

2023

    

2022

Raw materials and supplies

$

964.7

$

929.9

Work in process

 

562.3

 

556.0

Finished goods

 

640.1

 

607.7

$

2,167.1

$

2,093.6

v3.24.0.1
Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2023
Property, Plant, and Equipment, Net  
Components of Property, Plant and Equipment, Net

The components of Property, plant and equipment, net are summarized as follows:

December 31, 

2023

    

2022

Land and improvements

$

33.9

$

30.2

Buildings and improvements

 

483.9

 

428.9

Machinery and equipment

 

2,628.4

 

2,377.3

Office equipment and other

 

430.3

 

387.2

 

3,576.5

 

3,223.6

Accumulated depreciation

 

(2,261.8)

 

(2,019.3)

$

1,314.7

$

1,204.3

v3.24.0.1
Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2023
Long-Term Debt  
Schedule of debt

December 31, 2023

December 31, 2022

 

 

    

Carrying

    

Approximate

    

Carrying

    

Approximate

 

 

Maturity

Amount

Fair Value (1)

Amount

Fair Value (1)

Revolving Credit Facility

 

November 2026

    

$

$

$

$

U.S. Commercial Paper Program (less unamortized discount of nil and $1.0 at December 31, 2023 and 2022, respectively)

 

November 2026

    

632.8

632.8

Euro Commercial Paper Program

 

November 2026

    

Term Loan Credit Facility

 

April 2024

    

3.20% Senior Notes (less unamortized discount of nil and $0.1 at December 31, 2023 and 2022, respectively)

 

April 2024

    

350.0

348.4

349.9

342.7

2.050% Senior Notes (less unamortized discount of $0.2 and $0.3 at December 31, 2023 and 2022, respectively)

 

March 2025

    

399.8

386.8

399.7

376.3

4.750% Senior Notes (less unamortized discount of $0.9 at December 31, 2023)

March 2026

349.1

350.6

0.750% Euro Senior Notes (less unamortized discount of $0.9 and $1.3 at December 31, 2023 and 2022, respectively)

 

May 2026

    

551.7

523.4

533.4

491.7

2.000% Euro Senior Notes (less unamortized discount of $1.3 and $1.5 at December 31, 2023 and 2022, respectively)

 

October 2028

    

551.4

531.4

533.2

491.5

4.350% Senior Notes (less unamortized discount of $0.2 and $0.3 at December 31, 2023 and 2022, respectively)

 

June 2029

    

499.8

497.2

499.7

477.7

2.800% Senior Notes (less unamortized discount of $0.4 and $0.5 at December 31, 2023 and 2022, respectively)

 

February 2030

    

899.6

817.6

899.5

769.2

2.200% Senior Notes (less unamortized discount of $2.1 and $2.4 at December 31, 2023 and 2022, respectively)

 

September 2031

    

747.9

629.9

747.6

596.2

Other debt

 

2024-2031

    

9.5

9.5

 

6.9

6.9

Less: unamortized deferred debt issuance costs

 

    

(21.5)

(25.0)

Total debt

 

    

4,337.3

4,094.8

 

4,577.7

 

4,185.0

Less: current portion

 

    

353.8

 

352.2

 

2.7

 

2.7

Total long-term debt

 

    

$

3,983.5

$

3,742.6

$

4,575.0

$

4,182.3

(1)The fair value of each series of the Company’s Senior Notes is based on recent bid prices in an active market and is therefore classified as Level 1 in the fair value hierarchy (Note 5).

Schedule of maturity of the Company's debt (exclusive of unamortized deferred debt issuance costs) over each of the next five years and thereafter

2024

$

354.0

 

2025

 

402.2

2026

 

903.0

2027

 

0.6

2028

 

551.7

Thereafter

 

2,147.3

$

4,358.8

v3.24.0.1
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2023
Fair Value Measurements  
Fair values of financial and non-financial assets and liabilities

Fair Value Measurements

 

    

Quoted Prices in

    

Significant

    

Significant

 

Active Markets

Observable

Unobservable

 

for Identical

Inputs

Inputs

 

2023

Total

Assets (Level 1)

(Level 2)

(Level 3)

 

Short-term investments

$

185.2

$

$

185.2

$

Long-term investments

0.4

0.4

Forward contracts

(0.5)

(0.5)

Redeemable noncontrolling interests

(30.7)

(30.7)

Total

$

154.4

$

$

185.1

$

(30.7)

2022

 

Short-term investments

$

61.1

$

$

61.1

$

Long-term investments

50.8

50.8

Forward contracts

1.5

1.5

Redeemable noncontrolling interests

(20.6)

(20.6)

Total

$

92.8

$

$

113.4

$

(20.6)

v3.24.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Income Taxes  
Schedule of income before income taxes

Year Ended December 31, 

 

    

2023

    

2022

    

2021

 

Income from continuing operations before income taxes:

United States

$

521.9

$

442.3

$

407.3

Foreign

 

1,932.9

 

2,025.1

 

1,581.9

$

2,454.8

$

2,467.4

$

1,989.2

Current tax provision (benefit):

United States

$

55.1

$

97.7

$

86.8

Foreign

 

513.0

 

457.6

 

351.9

568.1

555.3

438.7

Deferred tax provision (benefit):

United States

(10.0)

(31.5)

(35.4)

Foreign

 

(48.8)

 

26.8

 

5.8

 

(58.8)

 

(4.7)

 

(29.6)

Total provision for income taxes

$

509.3

$

550.6

$

409.1

Schedule of provision for income taxes

The components of income from continuing operations before income taxes and the provision for income taxes are as follows:

Year Ended December 31, 

 

    

2023

    

2022

    

2021

 

Income from continuing operations before income taxes:

United States

$

521.9

$

442.3

$

407.3

Foreign

 

1,932.9

 

2,025.1

 

1,581.9

$

2,454.8

$

2,467.4

$

1,989.2

Current tax provision (benefit):

United States

$

55.1

$

97.7

$

86.8

Foreign

 

513.0

 

457.6

 

351.9

568.1

555.3

438.7

Deferred tax provision (benefit):

United States

(10.0)

(31.5)

(35.4)

Foreign

 

(48.8)

 

26.8

 

5.8

 

(58.8)

 

(4.7)

 

(29.6)

Total provision for income taxes

$

509.3

$

550.6

$

409.1

Schedule of differences between the U.S. statutory federal tax rate and the Company's effective income tax rate

Year Ended December 31, 

 

2023

  

2022

  

2021

 

U.S. statutory federal tax rate

21.0

%

21.0

%

21.0

%

State and local taxes, net

0.6

0.6

0.8

Foreign earnings and dividends taxed at different rates

2.2

2.3

1.8

U.S. tax on foreign income

0.5

0.6

Excess tax benefits related to stock-based compensation

(3.4)

(2.3)

(3.2)

Settlements of uncertain tax positions in foreign jurisdictions including refund claims and related deferred taxes

(0.7)

Other, net

0.3

0.2

0.3

Effective tax rate

20.7

%

22.3

%

20.6

%

Schedule of deferred tax assets and liabilities

December 31, 

   

2023

   

2022

Deferred tax assets relating to:

Accrued liabilities and reserves

$

78.0

$

72.4

Operating lease liabilities

70.7

66.6

Operating loss, interest, and tax credit carryforwards

 

76.9

 

57.4

Pensions

 

16.7

 

15.0

Inventories

 

86.0

 

77.8

Employee benefits

 

45.1

 

42.9

Total deferred tax assets

373.4

332.1

Valuation allowance

(46.6)

(42.2)

Total deferred tax assets, net of valuation allowances

326.8

289.9

Deferred tax liabilities relating to:

Goodwill

270.5

251.7

Depreciation and amortization

 

130.9

 

140.3

Operating lease right-of-use assets

70.7

66.6

Unremitted foreign earnings

123.2

 

154.2

Total deferred tax liabilities

595.3

612.8

Net deferred tax liability

$

268.5

$

322.9

Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets:

Other long-term assets

$

98.5

$

86.9

Deferred income taxes

 

367.0

 

409.8

Net deferred tax liability, long-term

$

268.5

$

322.9

Schedule of reconciliation of gross amounts of unrecognized tax benefits excluding interest and penalties

    

2023

    

2022

    

2021

 

Unrecognized tax benefits as of January 1

$

164.1

$

147.7

$

135.3

Gross increases for tax positions in prior periods

 

3.8

 

12.8

 

6.5

Gross increases for tax positions in current period

 

8.4

 

4.9

 

8.2

Settlements

 

(1.0)

 

(0.4)

 

Lapse of statutes of limitations

 

(1.1)

 

(0.9)

 

(2.3)

Unrecognized tax benefits as of December 31

$

174.2

$

164.1

$

147.7

v3.24.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2023
Equity  
Schedule of stock option activity

 

Weighted

 

 

Average

Aggregate

 

 

Weighted

Remaining

Intrinsic

 

 

Average

Contractual

Value

 

Options

    

Exercise Price

    

Term (in years)

    

(in millions)

 

Options outstanding at January 1, 2021

 

67,985,648

$

37.58

 

6.79

Options granted

 

7,543,589

 

66.65

Options exercised

 

(9,692,199)

 

29.87

Options forfeited

 

(536,290)

 

48.00

Options outstanding at December 31, 2021

 

65,300,748

 

42.00

6.47

Options granted

 

7,090,798

 

68.95

Options exercised

 

(5,627,389)

 

32.89

Options forfeited

 

(629,120)

 

51.82

Options outstanding at December 31, 2022

 

66,135,037

45.57

6.03

Options granted

 

6,065,514

 

75.99

Options exercised

 

(11,253,331)

 

35.11

Options forfeited

 

(557,058)

 

58.31

Options outstanding at December 31, 2023

 

60,390,162

$

50.45

5.81

$

2,939.5

Vested and non-vested options expected to vest at December 31, 2023

 

58,703,071

$

50.06

5.75

$

2,880.6

Exercisable options at December 31, 2023

 

37,866,181

$

42.88

4.66

$

2,129.9

Summary of status of non-vested options and changes during the year

    

    

Weighted Average

 

Fair Value

Options

at Grant Date

 

Non-vested options at January 1, 2023

 

26,721,012

$

11.04

Options granted

 

6,065,514

 

21.42

Options vested

 

(9,705,487)

 

9.28

Options forfeited

 

(557,058)

 

12.17

Non-vested options at December 31, 2023

 

22,523,981

$

14.57

Summary of activity in the option plans

2023

    

2022

    

2021

Total intrinsic value of stock options exercised

$

559.6

$

245.1

$

430.9

Total fair value of stock options vested

 

90.0

 

79.9

 

71.7

Schedule of fair value of stock options estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions

    

2023

2022

2021

Risk free interest rate

3.8

%  

2.7

%  

0.7

%  

Expected life

 

4.9

years

4.8

years

4.7

years

Expected volatility

 

28.0

%  

25.9

%  

25.0

%  

Expected dividend yield

 

1.0

%  

1.0

%  

1.0

%  

Schedule of restricted stock activity

Weighted Average

Fair Value

Remaining

Restricted

at Grant

Amortization

    

Shares

    

Date

    

Term (in years)

 

Restricted shares outstanding at January 1, 2021

 

26,350

$

45.55

 

0.38

Restricted shares granted

 

21,983

 

66.33

Shares vested and issued

 

(27,272)

 

45.80

Restricted shares outstanding at December 31, 2021

 

21,061

 

66.92

    

0.38

Restricted shares granted

 

21,312

 

67.59

Shares vested and issued

 

(21,061)

 

66.92

Restricted shares outstanding at December 31, 2022

    

21,312

67.59

    

0.37

Restricted shares granted

 

 

Shares vested and issued

 

(21,312)

 

67.59

Restricted shares outstanding at December 31, 2023

    

    

$

    

Schedules of dividends

 

2023

2022

2021

First Quarter

$

0.21

$

0.20

$

0.145

Second Quarter

0.21

0.20

0.145

Third Quarter

0.21

0.20

0.145

Fourth Quarter

0.22

0.21

0.20

Total

$

0.85

$

0.81

$

0.635

Dividends declared and paid for the years ended December 31, 2023, 2022 and 2021 were as follows:

    

2023

2022

2021

Dividends declared

$

507.4

$

482.6

$

379.7

Dividends paid (including those declared in the prior year)

 

500.6

 

477.4

 

346.7

Schedule of components comprising Accumulated other comprehensive income (loss) included in equity

Foreign

Unrealized

Pension and

Accumulated

 

Currency

Gain (Loss)

Postretirement

Other

Translation

on Hedging

Benefit Plan

Comprehensive

 

  

Adjustments

    

Activities

    

Adjustment

    

(Loss) Income

 

Balance at January 1, 2021

$

(86.6)

$

0.1

$

(191.6)

$

(278.1)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($12.3), respectively

(66.2)

37.4

(28.8)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($6.6)

20.4

20.4

Balance at December 31, 2021

 

(152.8)

 

0.1

 

(133.8)

 

(286.5)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($0.4), respectively

(260.2)

(0.1)

(1.4)

(261.7)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($4.3)

13.2

13.2

Balance at December 31, 2022

 

(413.0)

 

 

(122.0)

 

(535.0)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and $1.1, respectively

0.3

(2.0)

(1.7)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($1.0)

3.1

3.1

Balance at December 31, 2023

$

(412.7)

$

$

(120.9)

$

(533.6)

v3.24.0.1
Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2023
Earnings Per Share  
Schedule of the reconciliation of basic weighted average common shares outstanding to diluted weighted average common shares outstanding

(dollars and shares in millions, except per share data)

   

2023

   

2022

   

2021

Net income attributable to Amphenol Corporation stockholders:

Net income from continuing operations attributable to Amphenol Corporation

$

1,928.0

$

1,902.3

$

1,569.4

Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($3.2) for 2021

21.4

Net income attributable to Amphenol Corporation

$

1,928.0

$

1,902.3

$

1,590.8

Weighted average common shares outstanding — Basic

 

596.5

 

596.2

 

597.9

Effect of dilutive stock options

 

24.1

 

24.8

 

27.6

Weighted average common shares outstanding — Diluted

 

620.6

 

621.0

 

625.5

Net income per common share attributable to Amphenol Corporation — Basic:

Continuing operations

$

3.23

$

3.19

$

2.62

Discontinued operations, net of income taxes

0.04

Net income attributable to Amphenol Corporation — Basic

$

3.23

$

3.19

$

2.66

Net income per common share attributable to Amphenol Corporation — Diluted:

Continuing operations

$

3.11

$

3.06

$

2.51

Discontinued operations, net of income taxes

0.03

Net income attributable to Amphenol Corporation — Diluted

$

3.11

$

3.06

$

2.54

v3.24.0.1
Benefit Plans and Other Postretirement Benefits (Tables) - Pension Benefits
12 Months Ended
Dec. 31, 2023
Defined Benefit Plan Disclosure  
Schedule of change in projected benefit obligation and plan assets

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.2

$

495.3

$

175.6

$

265.9

$

563.8

$

761.2

Service cost

 

2.5

 

3.5

 

1.3

 

2.5

 

3.8

 

6.0

Interest cost

 

18.6

 

10.6

 

6.8

 

3.4

 

25.4

 

14.0

Plan amendments

 

 

2.8

 

 

 

 

2.8

Actuarial loss (gain)

 

8.8

 

(95.8)

 

5.7

 

(69.6)

 

14.5

 

(165.4)

Foreign exchange translation and other

 

 

 

(9.5)

 

(19.2)

 

(9.5)

 

(19.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Projected benefit obligation at end of year

 

388.5

 

388.2

 

173.3

 

175.6

 

561.8

 

563.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

387.0

 

527.5

 

83.6

 

116.5

 

470.6

 

644.0

Actual return on plan assets

 

37.1

 

(113.4)

 

7.7

 

(21.5)

 

44.8

 

(134.9)

Employer contributions

 

1.1

 

1.1

 

4.3

 

5.2

 

5.4

 

6.3

Foreign exchange translation and other

 

 

 

(3.0)

 

(9.2)

 

(3.0)

 

(9.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Fair value of plan assets at end of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

21.2

$

12.9

$

0.7

$

0.7

$

21.9

$

13.6

Other accrued expenses

1.2

1.2

2.9

3.2

4.1

4.4

Accrued pension and postretirement benefit obligations

12.9

12.9

85.1

89.5

98.0

102.4

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Accumulated other comprehensive loss, net

$

(104.0)

$

(108.5)

$

(18.9)

$

(15.6)

$

(122.9)

$

(124.1)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

4.97

%

5.18

%

3.72

%

4.20

%

Rate of compensation increase

 

2.40

%

2.40

%

1.89

%

1.83

%

Schedule of amounts recognized in the balance sheet

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.2

$

495.3

$

175.6

$

265.9

$

563.8

$

761.2

Service cost

 

2.5

 

3.5

 

1.3

 

2.5

 

3.8

 

6.0

Interest cost

 

18.6

 

10.6

 

6.8

 

3.4

 

25.4

 

14.0

Plan amendments

 

 

2.8

 

 

 

 

2.8

Actuarial loss (gain)

 

8.8

 

(95.8)

 

5.7

 

(69.6)

 

14.5

 

(165.4)

Foreign exchange translation and other

 

 

 

(9.5)

 

(19.2)

 

(9.5)

 

(19.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Projected benefit obligation at end of year

 

388.5

 

388.2

 

173.3

 

175.6

 

561.8

 

563.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

387.0

 

527.5

 

83.6

 

116.5

 

470.6

 

644.0

Actual return on plan assets

 

37.1

 

(113.4)

 

7.7

 

(21.5)

 

44.8

 

(134.9)

Employer contributions

 

1.1

 

1.1

 

4.3

 

5.2

 

5.4

 

6.3

Foreign exchange translation and other

 

 

 

(3.0)

 

(9.2)

 

(3.0)

 

(9.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Fair value of plan assets at end of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

21.2

$

12.9

$

0.7

$

0.7

$

21.9

$

13.6

Other accrued expenses

1.2

1.2

2.9

3.2

4.1

4.4

Accrued pension and postretirement benefit obligations

12.9

12.9

85.1

89.5

98.0

102.4

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Accumulated other comprehensive loss, net

$

(104.0)

$

(108.5)

$

(18.9)

$

(15.6)

$

(122.9)

$

(124.1)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

4.97

%

5.18

%

3.72

%

4.20

%

Rate of compensation increase

 

2.40

%

2.40

%

1.89

%

1.83

%

Schedule of weighted average assumptions used to determine projected benefit obligations

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.2

$

495.3

$

175.6

$

265.9

$

563.8

$

761.2

Service cost

 

2.5

 

3.5

 

1.3

 

2.5

 

3.8

 

6.0

Interest cost

 

18.6

 

10.6

 

6.8

 

3.4

 

25.4

 

14.0

Plan amendments

 

 

2.8

 

 

 

 

2.8

Actuarial loss (gain)

 

8.8

 

(95.8)

 

5.7

 

(69.6)

 

14.5

 

(165.4)

Foreign exchange translation and other

 

 

 

(9.5)

 

(19.2)

 

(9.5)

 

(19.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Projected benefit obligation at end of year

 

388.5

 

388.2

 

173.3

 

175.6

 

561.8

 

563.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

387.0

 

527.5

 

83.6

 

116.5

 

470.6

 

644.0

Actual return on plan assets

 

37.1

 

(113.4)

 

7.7

 

(21.5)

 

44.8

 

(134.9)

Employer contributions

 

1.1

 

1.1

 

4.3

 

5.2

 

5.4

 

6.3

Foreign exchange translation and other

 

 

 

(3.0)

 

(9.2)

 

(3.0)

 

(9.2)

Benefits paid

 

(29.6)

 

(28.2)

 

(6.6)

 

(7.4)

 

(36.2)

 

(35.6)

Fair value of plan assets at end of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

21.2

$

12.9

$

0.7

$

0.7

$

21.9

$

13.6

Other accrued expenses

1.2

1.2

2.9

3.2

4.1

4.4

Accrued pension and postretirement benefit obligations

12.9

12.9

85.1

89.5

98.0

102.4

Over (under) funded status at end of year

$

7.1

$

(1.2)

$

(87.3)

$

(92.0)

$

(80.2)

$

(93.2)

Accumulated other comprehensive loss, net

$

(104.0)

$

(108.5)

$

(18.9)

$

(15.6)

$

(122.9)

$

(124.1)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

4.97

%

5.18

%

3.72

%

4.20

%

Rate of compensation increase

 

2.40

%

2.40

%

1.89

%

1.83

%

Pension plans with an accumulated benefit obligation in excess of plan assets

The following summarizes information for defined benefit plans with an accumulated benefit obligation in excess of plan assets as of December 31, 2023 and 2022:

U.S. Plans

Foreign Plans

2023

  

2022

  

2023

2022

Accumulated benefit obligation

$

23.1

$

22.8

$

142.3

$

147.2

Fair value of plan assets

9.1

8.9

57.0

57.7

Pension plans with a projected benefit obligation in excess of plan assets

The following summarizes information for defined benefit plans with a projected benefit obligation in excess of plan assets as of December 31, 2023 and 2022:

U.S. Plans

Foreign Plans

2023

  

2022

  

2023

2022

Projected benefit obligation

$

23.2

$

22.9

$

169.3

$

170.7

Fair value of plan assets

9.1

8.9

81.2

77.9

Schedule of amounts, before tax, included in Accumulated other comprehensive loss that have not yet been recognized as expense

    

U.S. Plans

Foreign Plans

Total

2023

2022

2023

2022

2023

2022

Actuarial losses, net

$

131.0

   

$

136.3

     

$

15.7

   

$

11.0

     

$

146.7

   

$

147.3

Prior service cost

4.8

6.5

0.5

0.5

5.3

7.0

Schedule of components of net pension expense

U.S. Plans

Foreign Plans

Total

  

2023

  

2022

  

2021

2023

  

2022

  

2021

2023

  

2022

  

2021

Components of net pension expense:

Service cost

$

2.5

$

3.5

$

4.2

$

1.3

$

2.5

$

3.3

$

3.8

$

6.0

$

7.5

Interest cost

 

18.6

 

10.6

 

8.6

 

6.8

 

3.4

 

2.7

 

25.4

 

14.0

 

11.3

Expected return on plan assets

 

(24.6)

 

(26.5)

 

(28.1)

 

(4.5)

 

(3.4)

 

(3.1)

 

(29.1)

 

(29.9)

 

(31.2)

Amortization of prior service cost

1.7

1.4

1.9

0.1

0.2

1.8

1.4

2.1

Amortization of actuarial losses

 

1.6

 

11.9

 

17.8

 

0.7

 

4.2

 

7.0

 

2.3

 

16.1

 

24.8

Net pension (income) expense

$

(0.2)

$

0.9

$

4.4

$

4.4

$

6.7

$

10.1

$

4.2

$

7.6

$

14.5

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

5.18

%

2.69

%

2.30

%

4.20

%

1.58

%

1.12

%

Expected long-term return on assets

 

5.50

%

5.50

%

6.00

%

5.45

%

3.35

%

2.71

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.93

%

1.75

%

1.75

%

Schedule of weighted average assumptions used to determine net benefit cost/expense

U.S. Plans

Foreign Plans

Total

  

2023

  

2022

  

2021

2023

  

2022

  

2021

2023

  

2022

  

2021

Components of net pension expense:

Service cost

$

2.5

$

3.5

$

4.2

$

1.3

$

2.5

$

3.3

$

3.8

$

6.0

$

7.5

Interest cost

 

18.6

 

10.6

 

8.6

 

6.8

 

3.4

 

2.7

 

25.4

 

14.0

 

11.3

Expected return on plan assets

 

(24.6)

 

(26.5)

 

(28.1)

 

(4.5)

 

(3.4)

 

(3.1)

 

(29.1)

 

(29.9)

 

(31.2)

Amortization of prior service cost

1.7

1.4

1.9

0.1

0.2

1.8

1.4

2.1

Amortization of actuarial losses

 

1.6

 

11.9

 

17.8

 

0.7

 

4.2

 

7.0

 

2.3

 

16.1

 

24.8

Net pension (income) expense

$

(0.2)

$

0.9

$

4.4

$

4.4

$

6.7

$

10.1

$

4.2

$

7.6

$

14.5

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

5.18

%

2.69

%

2.30

%

4.20

%

1.58

%

1.12

%

Expected long-term return on assets

 

5.50

%

5.50

%

6.00

%

5.45

%

3.35

%

2.71

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.93

%

1.75

%

1.75

%

Fair values of Company's pension plan assets by asset category

Assets Measured at

Asset Category

Total

Level 1

Level 2

Level 3

Net Asset Value (a)

December 31, 2023

Equity securities:

U.S. equities — large cap

$

29.0

$

$

29.0

$

$

U.S. equities — small/mid cap and other

 

8.7

 

 

8.7

 

 

International equities — growth

 

22.1

 

12.3

 

9.8

 

 

International equities — other

 

25.7

 

 

25.7

 

 

Alternative investment funds

5.6

5.6

Fixed income securities:

U.S. fixed income securities — intermediate term

 

113.5

 

 

113.5

 

 

U.S. fixed income securities — long term

210.9

 

 

210.9

 

 

International fixed income securities — other

 

39.7

 

39.7

 

 

Insurance contracts

 

19.5

 

 

 

19.5

 

Cash and cash equivalents

 

6.9

 

6.9

 

 

 

Total

$

481.6

$

19.2

$

437.3

$

19.5

$

5.6

December 31, 2022

Equity securities:

U.S. equities — large cap

$

44.1

$

$

44.1

$

$

U.S. equities — small/mid cap and other

 

13.0

 

 

13.0

 

 

International equities — growth

 

28.7

 

19.7

 

9.0

 

 

International equities — other

 

38.4

 

 

38.4

 

 

Alternative investment funds

14.6

14.6

Fixed income securities:

U.S. fixed income securities — intermediate term

 

83.6

 

 

83.6

 

 

U.S. fixed income securities — long term

181.3

 

 

181.3

 

 

International fixed income securities — other

 

34.0

 

34.0

 

 

Insurance contracts

24.3

 

 

 

24.3

 

Cash and cash equivalents

8.6

 

8.6

 

 

 

Total

$

470.6

$

28.3

$

403.4

$

24.3

$

14.6

(a)Certain investments measured at fair value using the net asset value practical expedient have been removed from the fair value hierarchy but included in the table above in order to permit the reconciliation of the fair value hierarchy to total plan assets.
Reconciliation of fair value measurements using significant unobservable inputs (Level 3)

2023

2022

Balance on January 1

$

24.3

$

34.1

Unrealized gains (losses), net

1.6

(6.2)

Purchases, sales and settlements, net

(7.2)

(1.3)

Foreign currency translation

0.8

(2.3)

Balance on December 31

$

19.5

$

24.3

Benefit payments related to the pension plans, including amounts to be paid out of Company assets and reflecting future expected service

    

U.S.

Foreign

 

Year

Plans

Plans

Total

 

2024

    

$

38.5

 

$

7.5

 

$

46.0

 

2025

 

29.9

 

7.7

 

37.6

2026

 

30.1

 

8.0

 

38.1

2027

 

30.1

 

8.3

 

38.4

2028

 

30.0

 

8.6

 

38.6

2029-2033

 

142.6

 

46.1

 

188.7

v3.24.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2023
Leases  
Schedule reconciling undiscounted operating lease payments to operating lease liability

Year Ending December 31,

2024

$

99.8

2025

72.7

2026

53.3

2027

36.9

2028

22.8

Thereafter

46.7

Total future minimum lease payments

$

332.2

Less imputed interest

(28.5)

Total present value of future minimum lease payments

$

303.7

Lease-related account balances on our Consolidated Balance Sheets

    

2023

    

2022

Operating lease right-of-use assets (included in Other long-term assets)

$

301.5

$

289.5

Other accrued expenses

$

91.6

$

85.2

Other long-term liabilities

212.1

208.5

Total operating lease liabilities

$

303.7

$

293.7

Additional supplemental Data related to operating leases

Year Ended December 31:

2023

2022

2021

Supplemental Cash Flow Information:

Cash paid for amounts included in the measurement of lease liabilities:

Operating cash flows from operating leases

$

114.3

$

109.3

$

103.2

Right-of-use assets obtained in exchange for lease liabilities

$

115.2

$

164.5

$

121.5

As of December 31:

Weighted Average Remaining Lease Term

5 years

5 years

5 years

Weighted Average Discount Rate

3.6

%

2.7

%

2.2

%

v3.24.0.1
Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2023
Goodwill and Other Intangible Assets  
Schedule of changes in the carrying amount of goodwill by segment

    

Harsh

    

Interconnect

    

 

Environment

Communications

and Sensor

 

Solutions

Solutions

Systems

Total

 

Goodwill at December 31, 2021

$

1,663.7

$

2,950.1

$

1,763.0

$

6,376.8

Acquisition-related

 

33.6

 

(5.1)

 

161.5

 

190.0

Foreign currency translation

 

(30.2)

 

(36.9)

 

(53.6)

 

(120.7)

Goodwill at December 31, 2022

1,667.1

2,908.1

1,870.9

6,446.1

Acquisition-related

 

334.9

 

68.8

 

208.7

 

612.4

Foreign currency translation

 

7.3

 

0.6

 

26.0

 

33.9

Goodwill at December 31, 2023

$

2,009.3

$

2,977.5

$

2,105.6

$

7,092.4

Summary of the Company's amortizable intangible assets

December 31, 2023

December 31, 2022

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

10

$

782.6

$

450.6

$

332.0

$

677.0

$

398.3

$

278.7

Proprietary technology

13

 

365.1

 

146.1

219.0

 

310.0

 

123.8

186.2

Backlog and other

1

 

114.1

 

99.4

14.7

 

86.9

 

86.8

0.1

Total intangible assets (definite-lived)

10

1,261.8

696.1

565.7

1,073.9

608.9

465.0

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

$

1,530.9

$

696.1

$

834.8

$

1,343.0

$

608.9

$

734.1

Summary of the Company's indefinite-lived intangible assets

Other than goodwill noted above, the Company’s intangible assets as of December 31, 2023 and 2022 were as follows:

December 31, 2023

December 31, 2022

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

10

$

782.6

$

450.6

$

332.0

$

677.0

$

398.3

$

278.7

Proprietary technology

13

 

365.1

 

146.1

219.0

 

310.0

 

123.8

186.2

Backlog and other

1

 

114.1

 

99.4

14.7

 

86.9

 

86.8

0.1

Total intangible assets (definite-lived)

10

1,261.8

696.1

565.7

1,073.9

608.9

465.0

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

$

1,530.9

$

696.1

$

834.8

$

1,343.0

$

608.9

$

734.1

v3.24.0.1
Reportable Business Segments and International Operations (Tables)
12 Months Ended
Dec. 31, 2023
Reportable Business Segments and International Operations  
Schedule of net sales, both external and intersegment, by segment

Net sales by segment for the years ended December 31, 2023, 2022 and 2021 are as follows:

    

External

Intersegment

2023

2022

2021

2023

2022

2021

Harsh Environment Solutions

 

$

3,530.8

$

3,107.2

$

2,752.2

$

90.8

$

78.1

$

70.6

Communications Solutions

4,912.8

5,652.4

4,832.1

50.2

79.4

75.0

Interconnect and Sensor Systems

4,111.1

3,863.4

3,292.0

18.2

17.2

23.7

Consolidated Net sales

$

12,554.7

$

12,623.0

$

10,876.3

$

159.2

$

174.7

$

169.3

Schedule of the reconciliation of segment operating income to consolidated income before income taxes

Segment operating income and the reconciliation of segment operating income to consolidated income from continuing operations before income taxes for the years ended December 31, 2023, 2022 and 2021 are as follows:

2023

2022

2021

Segment operating income:

Harsh Environment Solutions

$

943.9

$

801.6

$

708.2

Communications Solutions

1,063.5

1,245.7

1,023.3

Interconnect and Sensor Systems

753.7

716.5

588.1

Total segment operating income

2,761.1

2,763.8

2,319.6

Corporate / Other:

Stock-based compensation expense

(99.0)

(89.5)

(83.0)

Acquisition-related expenses

(34.6)

(21.5)

(70.4)

Other operating expenses

(67.9)

(67.0)

(61.1)

Interest expense

(139.5)

(128.4)

(115.5)

Gain on bargain purchase acquisition

5.4

Other income (expense), net

29.3

10.0

(0.4)

Income from continuing operations before income taxes

$

2,454.8

$

2,467.4

$

1,989.2

Schedule of depreciation and amortization expense

Depreciation and amortization expense by segment for the years ended December 31, 2023, 2022 and 2021 is as follows:

2023

2022

2021

Harsh Environment Solutions

 

$

91.0

$

78.2

$

73.2

Communications Solutions

177.0

183.7

179.2

Interconnect and Sensor Systems

131.1

124.5

136.1

Corporate / Other

7.3

6.5

7.1

Total

$

406.4

$

392.9

$

395.6

Schedule of revenues and long-lived assets by geographical area

Net sales by geographic area for the years ended December 31, 2023, 2022 and 2021 and long-lived assets by geographic area as of December 31 were as follows:

    

2023

    

2022

    

2021

Net sales

United States

$

4,405.4

$

4,155.2

$

3,155.9

China

 

2,884.0

 

3,265.0

 

3,044.4

Other foreign locations

 

5,265.3

 

5,202.8

 

4,676.0

Total

$

12,554.7

$

12,623.0

$

10,876.3

Long-lived assets(1)

United States

$

442.6

$

386.1

$

362.1

China

 

455.5

 

470.1

 

451.7

Other foreign locations

 

718.1

 

637.6

 

606.4

Total

$

1,616.2

$

1,493.8

$

1,420.2

(1)

Long-lived assets included in this table are comprised of property, plant and equipment, net, and operating lease right-of-use assets for all years presented.

Schedule of disaggregation of net sales

The following tables show our net sales disaggregated into categories the Company considers meaningful to depict how the nature, amount, timing and uncertainty of revenue and cash flows are affected by economic factors for the years ended December 31, 2023, 2022 and 2021:

Net sales by sales channel:

2023

2022

2021

End customers and contract manufacturers:

Harsh Environment Solutions

$

2,581.6

$

2,176.4

$

1,980.7

Communications Solutions

3,933.2

4,469.0

3,889.0

Interconnect and Sensor Systems

 

3,947.4

 

3,724.6

 

3,168.5

$

10,462.2

$

10,370.0

$

9,038.2

Distributors and resellers:

Harsh Environment Solutions

$

949.2

$

930.8

$

771.5

Communications Solutions

979.6

1,183.4

943.1

Interconnect and Sensor Systems

 

163.7

 

138.8

 

123.5

$

2,092.5

$

2,253.0

$

1,838.1

Total Net sales

$

12,554.7

$

12,623.0

$

10,876.3

Net sales by geography:

2023

2022

2021

United States:

Harsh Environment Solutions

$

1,790.5

$

1,558.2

$

1,352.2

Communications Solutions

1,395.8

1,495.3

958.2

Interconnect and Sensor Systems

 

1,219.1

 

1,101.7

 

845.5

$

4,405.4

$

4,155.2

$

3,155.9

China:

Harsh Environment Solutions

$

351.2

$

437.5

$

437.1

Communications Solutions

1,669.4

1,939.6

1,914.6

Interconnect and Sensor Systems

 

863.4

 

887.9

 

692.7

$

2,884.0

$

3,265.0

$

3,044.4

Other foreign locations:

Harsh Environment Solutions

$

1,389.1

$

1,111.5

$

962.9

Communications Solutions

1,847.6

2,217.5

1,959.3

Interconnect and Sensor Systems

 

2,028.6

 

1,873.8

 

1,753.8

$

5,265.3

$

5,202.8

$

4,676.0

Total Net sales

$

12,554.7

$

12,623.0

$

10,876.3

v3.24.0.1
Summary of Significant Accounting Policies, Business (Details) - segment
12 Months Ended
Jan. 01, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Summary of Significant Accounting Policies        
Number of reportable business segments 3 3 3 2
v3.24.0.1
Summary of Significant Accounting Policies, Depreciable Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Depreciable Assets      
Impairments $ 0.0 $ 0.0 $ 0.0
Machinery and Equipment and Office Equipment | Minimum      
Depreciable Assets      
Estimated useful life 3 years    
Machinery and Equipment and Office Equipment | Maximum      
Depreciable Assets      
Estimated useful life 12 years    
Building | Minimum      
Depreciable Assets      
Estimated useful life 20 years    
Building | Maximum      
Depreciable Assets      
Estimated useful life 40 years    
v3.24.0.1
Summary of Significant Accounting Policies, Leases (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Lease liabilities $ 303.7 $ 293.7
Operating lease right-of-use assets (included in other long-term assets) $ 301.5 $ 289.5
Minimum    
Lease, renewal term 1 year  
Minimum | Real Estate Leases [Member]    
Lease term 2 years  
Maximum    
Lease, renewal term 6 years  
Maximum | Real Estate Leases [Member]    
Lease term 12 years  
v3.24.0.1
Summary of Significant Accounting Policies, Goodwill and Intangible Assets (Details)
12 Months Ended
Jul. 01, 2023
USD ($)
Jul. 01, 2022
USD ($)
Jan. 01, 2022
segment
Dec. 31, 2023
USD ($)
segment
Dec. 31, 2022
USD ($)
segment
Dec. 31, 2021
USD ($)
segment
Summary of Significant Accounting Policies            
Number of reporting units | segment       3 3 2
Number of reportable business segments | segment     3 3 3 2
Goodwill impairment | $ $ 0 $ 0   $ 0 $ 0 $ 0
Impairment of intangible assets | $       $ 0 $ 0 $ 0
v3.24.0.1
Summary of Significant Accounting Policies, Revenue Recognition (Details) - item
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenue recognition      
Remaining performance obligation, expected timing for substantial portion of performance obligations 3 months    
Practical expedient, performance obligation true    
Practical expedient, incremental cost of obtaining contract true    
Minimum      
Revenue recognition      
Payment terms 30 days    
Number of reporting periods that may be extended across for multiple delivery dates 1    
Maximum      
Revenue recognition      
Payment terms 120 days    
Percentage of net sales recognized over time 5.00% 5.00% 5.00%
Remaining performance obligation, expected timing for nearly all performance obligations 1 year    
v3.24.0.1
Summary of Significant Accounting Policies, Income Taxes (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
Income tax  
Undistributed foreign earnings $ 1,350
GILTI policy Tax as incurred
v3.24.0.1
Summary of Significant Accounting Policies, Research and Development (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Research and Development      
Research and development expenses for the creation of new and improved products and processes $ 342.2 $ 323.6 $ 317.7
v3.24.0.1
Summary of Significant Accounting Policies, Derivatives (Details)
$ in Millions
Dec. 31, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
contract
Cash Flow Hedges [Member]    
Number of forward contracts 0 0
Net Investment Hedges [Member]    
Number of forward contracts 0  
Aggregate notional value of outstanding derivative contracts | $ $ 0.0 $ 75.0
v3.24.0.1
Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Inventories    
Raw materials and supplies $ 964.7 $ 929.9
Work in process 562.3 556.0
Finished goods 640.1 607.7
Inventories $ 2,167.1 $ 2,093.6
v3.24.0.1
Property, Plant and Equipment, Net (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant, and Equipment, Net      
Depreciation $ 313.7 $ 306.1 $ 302.9
v3.24.0.1
Property, Plant and Equipment, Net (Components of Property, Plant and Equipment, Net) (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Property, Plant, and Equipment, Net    
Land and improvements $ 33.9 $ 30.2
Buildings and improvements 483.9 428.9
Machinery and equipment 2,628.4 2,377.3
Office equipment and other 430.3 387.2
Property, plant and equipment, gross 3,576.5 3,223.6
Accumulated depreciation (2,261.8) (2,019.3)
Property, plant and equipment, net $ 1,314.7 $ 1,204.3
v3.24.0.1
Long-Term Debt, Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Mar. 30, 2023
Dec. 31, 2022
Sep. 14, 2021
Aug. 16, 2021
Debt          
Less: unamortized deferred debt issuance costs $ (21.5)   $ (25.0)    
Total debt 4,337.3   4,577.7    
Less current portion 353.8   2.7    
Total long-term debt 3,983.5   4,575.0    
Total debt, Approximate Fair Value 4,094.8   4,185.0    
Less current portion, Fair Value 352.2   2.7    
Long-term debt, Approximate Fair Value 3,742.6   4,182.3    
Fair Value          
Debt          
Less: unamortized deferred debt issuance costs      
The "Revolving Credit Facility"          
Debt          
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 0.0   0.0    
The "Revolving Credit Facility" | Significant Observable Inputs (Level 2)          
Debt          
Total debt, Approximate Fair Value 0.0   0.0    
U.S. Commercial Paper Program          
Debt          
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 0.0   632.8    
Unamortized discount 0.0   1.0    
U.S. Commercial Paper Program | Significant Observable Inputs (Level 2)          
Debt          
Total debt, Approximate Fair Value 0.0   632.8    
Euro Commercial Paper Program          
Debt          
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 0.0   0.0    
Euro Commercial Paper Program | Significant Observable Inputs (Level 2)          
Debt          
Total debt, Approximate Fair Value 0.0   0.0    
2022 Term Loan          
Debt          
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 0.0   0.0    
2022 Term Loan | Significant Observable Inputs (Level 2)          
Debt          
Total debt, Approximate Fair Value $ 0.0   $ 0.0    
3.125% Senior Notes due September 2021          
Debt          
Stated interest rate (as a percent)         3.125%
3.20% Senior Notes due April 2024          
Debt          
Stated interest rate (as a percent) 3.20%   3.20%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 350.0   $ 349.9    
Unamortized discount 0.0   0.1    
3.20% Senior Notes due April 2024 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 348.4   $ 342.7    
2.05% Senior Notes due March 2025          
Debt          
Stated interest rate (as a percent) 2.05%   2.05%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 399.8   $ 399.7    
Unamortized discount 0.2   0.3    
2.05% Senior Notes due March 2025 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 386.8   376.3    
4.750% Senior Notes due March 2026          
Debt          
Stated interest rate (as a percent) 4.75% 4.75%      
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 349.1   0.0    
Unamortized discount 0.9        
4.750% Senior Notes due March 2026 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 350.6   $ 0.0    
0.750% Euro Senior Notes due May 2026          
Debt          
Stated interest rate (as a percent) 0.75%   0.75%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 551.7   $ 533.4    
Unamortized discount 0.9   1.3    
0.750% Euro Senior Notes due May 2026 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 523.4   $ 491.7    
2.000% Euro Senior Notes due October 2028          
Debt          
Stated interest rate (as a percent) 2.00%   2.00%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 551.4   $ 533.2    
Unamortized discount 1.3   1.5    
2.000% Euro Senior Notes due October 2028 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 531.4   $ 491.5    
4.350% Senior Notes due June 2029          
Debt          
Stated interest rate (as a percent) 4.35%   4.35%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 499.8   $ 499.7    
Unamortized discount 0.2   0.3    
4.350% Senior Notes due June 2029 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 497.2   $ 477.7    
2.800% Senior Notes due February 2030          
Debt          
Stated interest rate (as a percent) 2.80%   2.80%    
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 899.6   $ 899.5    
Unamortized discount 0.4   0.5    
2.800% Senior Notes due February 2030 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value $ 817.6   $ 769.2    
2.200% Senior Notes due September 2031          
Debt          
Stated interest rate (as a percent) 2.20%   2.20% 2.20%  
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 747.9   $ 747.6    
Unamortized discount 2.1   2.4    
2.200% Senior Notes due September 2031 | Quoted Prices in Active Markets for Identical Assets (Level 1)          
Debt          
Total debt, Approximate Fair Value 629.9   596.2    
Other Debt [Member]          
Debt          
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 9.5   6.9    
Other Debt [Member] | Significant Observable Inputs (Level 2)          
Debt          
Total debt, Approximate Fair Value $ 9.5   $ 6.9    
v3.24.0.1
Long-Term Debt, Revolving Credit Facility (Details) - The "Revolving Credit Facility" - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Nov. 30, 2021
Debt      
Maximum borrowing capacity $ 2,500.0   $ 2,500.0
Borrowings under the Revolving Credit Facility $ 0.0 $ 0.0  
v3.24.0.1
Long-Term Debt, Term Loan Credit Facility (Details) - 2022 Term Loan
$ in Millions
Apr. 19, 2022
USD ($)
agreement
Dec. 31, 2023
USD ($)
Debt    
Maximum borrowing capacity $ 750.0  
Borrowings under the unsecured term loan credit facility   $ 0.0
Maturity term 2 years  
Debt maturity date Apr. 19, 2024  
Number of occasions allowed to borrow over the life of the facility | agreement 5  
v3.24.0.1
Long-Term Debt, Commercial Paper (Details)
$ in Millions
12 Months Ended
Nov. 01, 2021
USD ($)
Aug. 16, 2021
USD ($)
Dec. 31, 2023
USD ($)
item
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Debt          
Repayments of long-term debt     $ 15.7 $ 10.3 $ 912.6
Commercial Paper Programs          
Debt          
Maximum borrowing capacity     2,500.0    
U.S. Commercial Paper Program          
Debt          
Average interest rate (as a percent)       4.69%  
Debt carrying amount, net of unamortized discount before deferred debt issuance costs     0.0 $ 632.8  
Maximum borrowing capacity     $ 2,500.0    
U.S. Commercial Paper Program | Maximum          
Debt          
Maturity term     397 days    
Euro Commercial Paper Program          
Debt          
Number of wholly-owned subsidiaries that entered into a euro-commercial paper program | item     1    
Debt carrying amount, net of unamortized discount before deferred debt issuance costs     $ 0.0 $ 0.0  
Maximum borrowing capacity     $ 2,000.0    
Euro Commercial Paper Program | Maximum          
Debt          
Maturity term     183 days    
4.00% Senior Notes due February 2022          
Debt          
Stated interest rate (as a percent) 4.00%        
Repayments of long-term debt $ 295.0        
3.125% Senior Notes due September 2021          
Debt          
Stated interest rate (as a percent)   3.125%      
Repayments of long-term debt   $ 227.7      
v3.24.0.1
Long-Term Debt, U.S. Senior Notes (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 30, 2023
Nov. 01, 2021
Sep. 14, 2021
Aug. 16, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Debt              
Repayments of long-term debt         $ 15.7 $ 10.3 $ 912.6
U.S. Senior Notes              
Debt              
Redemption price as a percentage of principal amount         100.00%    
4.00% Senior Notes due February 2022              
Debt              
Stated interest rate (as a percent)   4.00%          
Repayments of long-term debt   $ 295.0          
3.125% Senior Notes due September 2021              
Debt              
Stated interest rate (as a percent)       3.125%      
Repayments of long-term debt       $ 227.7      
4.750% Senior Notes due March 2026              
Debt              
Redemption price as a percentage of principal amount 100.00%            
Debt instrument, principal amount $ 350.0            
Stated interest rate (as a percent) 4.75%       4.75%    
Debt instrument, face amount, net of discount (as a percent) 99.658%            
Debt maturity date         Mar. 30, 2026    
2.200% Senior Notes due September 2031              
Debt              
Redemption price as a percentage of principal amount     100.00%        
Debt instrument, principal amount     $ 750.0        
Stated interest rate (as a percent)     2.20%   2.20% 2.20%  
Debt instrument, face amount, net of discount (as a percent)     99.634%        
Debt maturity date         Sep. 15, 2031    
v3.24.0.1
Long-Term Debt, Euro Senior Notes (Details)
€ in Millions, $ in Millions
12 Months Ended
May 04, 2020
USD ($)
Oct. 08, 2018
USD ($)
Dec. 31, 2023
loan
May 04, 2020
EUR (€)
Oct. 08, 2018
EUR (€)
Euro Notes [Member]          
Debt          
Number of outstanding notes     2    
0.750% Euro Senior Notes Due May 2026 [Member]          
Debt          
Debt instrument, principal amount $ 545.4     € 500.0  
Stated interest rate (as a percent) 0.75%     0.75%  
Debt maturity date     May 04, 2026    
Debt instrument, face amount, net of discount (as a percent) 99.563%     99.563%  
Redemption price as a percentage of principal amount 100.00%        
2.000% Euro Senior Notes due October 2028 [Member]          
Debt          
Debt instrument, principal amount   $ 574.6     € 500.0
Stated interest rate (as a percent)   2.00%     2.00%
Debt maturity date     Oct. 08, 2028    
Debt instrument, face amount, net of discount (as a percent)   99.498%     99.498%
Redemption price as a percentage of principal amount   100.00%      
v3.24.0.1
Long-Term Debt, Debt Maturity (Details)
$ in Millions
Dec. 31, 2023
USD ($)
Maturity of the Company's long-term debt over each of the next five years  
2024 $ 354.0
2025 402.2
2026 903.0
2027 0.6
2028 551.7
Thereafter 2,147.3
Debt (exclusive of unamortized deferred debt issuance costs) $ 4,358.8
v3.24.0.1
Long-Term Debt, Letter of Credit (Details) - Uncommitted standby letter of credit facility
$ in Millions
Dec. 31, 2023
USD ($)
Debt  
Standby letter of credit capacity $ 55.4
Letter of credit issued $ 40.9
v3.24.0.1
Fair Value Measurements (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
contract
Fair value of assets and liabilities measured on recurring basis    
Long-term investments maturity period 2 years  
Net Investment Hedging [Member]    
Fair value of assets and liabilities measured on recurring basis    
Number of forward contracts | contract 0 1
Cash Flow Hedging    
Fair value of assets and liabilities measured on recurring basis    
Number of forward contracts | contract 0 0
Fair value measurements recurring basis    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments $ 185.2 $ 61.1
Long-term investments 0.4 50.8
Forward contracts   1.5
Forward contracts (0.5)  
Redeemable noncontrolling interests (30.7) (20.6)
Total asset 154.4 92.8
Fair value measurements recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 0.0 0.0
Long-term investments 0.0 0.0
Forward contracts   0.0
Forward contracts 0.0  
Redeemable noncontrolling interests 0.0 0.0
Total asset 0.0 0.0
Fair value measurements recurring basis | Significant Observable Inputs (Level 2)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 185.2 61.1
Long-term investments 0.4 50.8
Forward contracts   1.5
Forward contracts (0.5)  
Redeemable noncontrolling interests 0.0 0.0
Total asset 185.1 113.4
Fair value measurements recurring basis | Significant Unobservable Inputs (Level 3)    
Fair value of assets and liabilities measured on recurring basis    
Short-term investments 0.0 0.0
Long-term investments 0.0 0.0
Forward contracts   0.0
Forward contracts 0.0  
Redeemable noncontrolling interests (30.7) (20.6)
Total liability $ (30.7) $ (20.6)
v3.24.0.1
Income Taxes, Pretax Income and Provision for Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income from continuing operations before income taxes:      
United States $ 521.9 $ 442.3 $ 407.3
Foreign 1,932.9 2,025.1 1,581.9
Income from continuing operations before income taxes 2,454.8 2,467.4 1,989.2
Current tax provision (benefit):      
United States 55.1 97.7 86.8
Foreign 513.0 457.6 351.9
Provision for income taxes, current 568.1 555.3 438.7
Deferred tax provision (benefit):      
United States (10.0) (31.5) (35.4)
Foreign (48.8) 26.8 5.8
Provision for income taxes, deferred (58.8) (4.7) (29.6)
Provision for income taxes $ 509.3 $ 550.6 $ 409.1
v3.24.0.1
Income Taxes, 2017 Tax Cuts and Jobs Act (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Taxes      
U.S. statutory federal tax rate (as a percent) 21.00% 21.00% 21.00%
Period for payment of Transition Tax 8 years    
v3.24.0.1
Income Taxes, Valuation allowance and tax carryforwards (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Income taxes    
Valuation allowance, related to the foreign net operating loss carryforwards and U.S. state tax credits $ 46.6 $ 42.2
Change in the valuation allowance, related to foreign net operating loss and foreign and U.S. state credit carryforwards 4.4 $ (2.7)
Foreign    
Income taxes    
Loss carryforwards 177.3  
Operating loss carryforwards to expire or be refunded 5.2  
U.S. Federal    
Income taxes    
Loss carryforwards 9.1  
Operating loss carryforwards to expire or be refunded 9.1  
Tax credit carryforwards 2.3  
Tax credit carryforwards to expire or be refunded 2.3  
U.S. State    
Income taxes    
Loss carryforwards 101.7  
Operating loss carryforwards to expire or be refunded 101.7  
Tax credit carryforwards 17.6  
Tax credit carryforwards to expire or be refunded $ 11.7  
v3.24.0.1
Income Taxes, U.S. statutory federal tax rate (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Differences between the U.S. statutory federal tax rate and the Company's effective income tax rate      
U.S. statutory federal tax rate (as a percent) 21.00% 21.00% 21.00%
State and local taxes (as a percent) 0.60% 0.60% 0.80%
Foreign earnings and dividends taxed at different rates (as a percent) 2.20% 2.30% 1.80%
U.S. tax on foreign income (as a percent) 0.00% 0.50% 0.60%
Excess tax benefits related to stock-based compensation (as a percent) (3.40%) (2.30%) (3.20%)
Settlements of uncertain tax positions in foreign jurisdictions including refund claims and related deferred taxes (as a percent) 0.00% 0.00% (0.70%)
Other, net (as a percent) 0.30% 0.20% 0.30%
Effective tax rate (as a percent) 20.70% 22.30% 20.60%
v3.24.0.1
Income Taxes, Deferred tax assets and liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Deferred tax assets relating to:    
Accrued liabilities and reserves $ 78.0 $ 72.4
Operating lease liabilities 70.7 66.6
Operating loss, interest, and tax credit carryforwards 76.9 57.4
Pensions 16.7 15.0
Inventories 86.0 77.8
Employee benefits 45.1 42.9
Total deferred tax assets 373.4 332.1
Valuation allowance (46.6) (42.2)
Total deferred tax assets, net of valuation allowances 326.8 289.9
Deferred tax liabilities relating to:    
Goodwill 270.5 251.7
Depreciation and amortization 130.9 140.3
Operating lease right-of-use assets 70.7 66.6
Unremitted foreign earnings 123.2 154.2
Total deferred tax liabilities 595.3 612.8
Net deferred tax liability 268.5 322.9
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Deferred income taxes 367.0 409.8
Deferred income taxes [Member]    
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Deferred income taxes 367.0 409.8
Other Long-Term Assets [Member]    
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Other long-term assets $ 98.5 $ 86.9
v3.24.0.1
Income Taxes, Unrecognized tax benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Taxes      
Unrecognized tax benefits, anticipated adjustment for changing facts and circumstances, over the next twelve month period $ 35.4    
Amount for unrecognized tax benefits, including penalties and interest, which if recognized would impact the effective tax rate 208.6 $ 194.4  
Reconciliation of the gross amounts of unrecognized tax benefits      
Unrecognized tax benefits as of January 1 164.1 147.7 $ 135.3
Gross increases for tax positions in prior periods 3.8 12.8 6.5
Gross increases for tax positions in current period 8.4 4.9 8.2
Settlements (1.0) (0.4) 0.0
Lapse of statute of limitations (1.1) (0.9) (2.3)
Unrecognized tax benefits at the end of the period 174.2 164.1 147.7
Estimated interest and penalties included in provision for income taxes 5.8 0.8 (4.6)
Tax-related interest and penalties liability for unrecognized tax benefits $ 41.8 $ 35.8 $ 34.5
v3.24.0.1
Equity, Stock-Based Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Expense incurred for stock-based compensation plans $ 99.0 $ 89.5 $ 83.0
Recognized tax benefit related to stock-based compensation 92.4 64.8 71.7
Excess tax benefit from option exercises 82.4 56.0 63.4
Selling, General and Administrative Expenses      
Expense incurred for stock-based compensation plans $ 99.0 $ 89.5 $ 83.0
v3.24.0.1
Equity, Stock Options (Details) - shares
12 Months Ended
May 19, 2021
Dec. 31, 2023
May 18, 2021
2017 Option Plan      
Stock-Based Compensation      
Additional shares available for the granting of stock options 40,000,000    
Number of shares originally authorized for issuance of stock options under stock option plan     60,000,000
Remaining shares available for the granting of stock options under plan   31,280,607  
Options ratable vesting period   5 years  
Options exercisable period   10 years  
2009 Employee Option Plan      
Stock-Based Compensation      
Additional shares available for the granting of stock options   0  
Options ratable vesting period   5 years  
Options exercisable period   10 years  
v3.24.0.1
Equity, Stock Option Activity (Details) - Stock Options - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Stock option activity        
Options outstanding at the beginning of the period (in shares) 66,135,037 65,300,748 67,985,648  
Non-vested options, options granted (in shares) 6,065,514 7,090,798 7,543,589  
Options exercised (in shares) (11,253,331) (5,627,389) (9,692,199)  
Options forfeited (in shares) (557,058) (629,120) (536,290)  
Options outstanding at the end of the period (in shares) 60,390,162 66,135,037 65,300,748 67,985,648
Vested and non-vested options expected to vest at the end of the period (in shares) 58,703,071      
Exercisable at the end of the period (in shares) 37,866,181      
Weighted Average Exercise Price        
Weighted average exercise price, options outstanding at the beginning of the period (in dollars per share) $ 45.57 $ 42.00 $ 37.58  
Weighted average exercise price, options granted (in dollars per share) 75.99 68.95 66.65  
Weighted average exercise price, options exercised (in dollars per share) 35.11 32.89 29.87  
Weighted average exercise price, options forfeited (in dollars per share) 58.31 51.82 48.00  
Weighted average exercise price, options outstanding at the end of the period (in dollars per share) 50.45 $ 45.57 $ 42.00 $ 37.58
Weighted average exercise price, vested and non-vested options expected to vest (in dollars per share) 50.06      
Weighted average exercise price, exercisable (in dollars per share) $ 42.88      
Weighted Average Remaining Contractual Term        
Weighted average remaining contractual term of options outstanding 5 years 9 months 21 days 6 years 10 days 6 years 5 months 19 days 6 years 9 months 14 days
Weighted average remaining contractual term of options vested options and non-vested expected to vest 5 years 9 months      
Weighted average remaining contractual term of options exercisable 4 years 7 months 28 days      
Aggregate Intrinsic Value        
Aggregate intrinsic value of options outstanding $ 2,939.5      
Aggregate intrinsic value of options, vested and non-vested options expected to vest 2,880.6      
Aggregate intrinsic value of options exercisable $ 2,129.9      
v3.24.0.1
Equity, Non-vested Stock Option Activity (Details) - Stock Options - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Status of the Company's non-vested options and changes during the year      
Non-vested options at the beginning of the period (in shares) 26,721,012    
Non-vested options, options granted (in shares) 6,065,514 7,090,798 7,543,589
Non-vested options, options vested (in shares) (9,705,487)    
Non-vested options, options forfeited (in shares) (557,058)    
Non-vested options at the end of the period (in shares) 22,523,981 26,721,012  
Weighted Average Fair Value at Grant Date      
Weighted average fair value at the grant date, Non-vested options at the beginning of the period (in dollars per share) $ 11.04    
Weighted average fair value at grant date, options granted (in dollars per share) 21.42 $ 16.79 $ 13.27
Weighted average fair value at grant date, options vested (in dollars per share) 9.28    
Weighted average fair value at grant date, options forfeited (in dollars per share) 12.17    
Weighted average fair value at the grant date, Non-vested options at the end of the period (in dollars per share) $ 14.57 $ 11.04  
v3.24.0.1
Equity, Option Plans (Details) - Stock Options - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stock-Based Compensation      
Total intrinsic value of stock options exercised (in dollars) $ 559.6 $ 245.1 $ 430.9
Total fair value of stock options vested (in dollars) 90.0 $ 79.9 $ 71.7
Total compensation cost related to non-vested options not yet recognized (in dollars) $ 250.3    
Weighted average expected amortization period 3 years 4 months 9 days    
v3.24.0.1
Equity, Weighted Average Assumptions (Details) - Stock Options
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Weighted-average assumptions:      
Risk free interest rate (as a percent) 3.80% 2.70% 0.70%
Expected life 4 years 10 months 24 days 4 years 9 months 18 days 4 years 8 months 12 days
Expected volatility (as a percent) 28.00% 25.90% 25.00%
Expected dividend yield (as a percent) 1.00% 1.00% 1.00%
v3.24.0.1
Equity, Restricted Shares (Details) - Restricted Shares - 2012 Directors Restricted Stock Plan - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
May 17, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Stock-Based Compensation          
Remaining shares available for granting under plan   0      
Restricted share activity          
Restricted shares outstanding at the beginning of the period (in shares)   21,312 21,061 26,350  
Restricted shares granted (in shares)   0 21,312 21,983  
Shares vested and issued (in shares) (21,312) (21,312) (21,061) (27,272)  
Restricted shares outstanding at the end of the period (in shares)   0 21,312 21,061 26,350
Fair Value at Grant Date          
Fair value at the grant date, restricted shares outstanding at the beginning of the period (in dollars per share)   $ 67.59 $ 66.92 $ 45.55  
Fair value of restricted shares vested and issued (in dollars per share)   67.59 66.92 45.80  
Fair value of restricted shares granted (in dollars per share)   0 67.59 66.33  
Fair value at the grant date, restricted shares outstanding at the end of the period (in dollars per share)   $ 0 $ 67.59 $ 66.92 $ 45.55
Weighted Average Remaining Amortization Term (in years)   0 years 4 months 13 days 4 months 17 days 4 months 17 days
Total fair value of restricted share awards vested (in dollars)   $ 1.4 $ 1.4 $ 1.2  
v3.24.0.1
Equity, Phantom Stock (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 05, 2023
Dec. 31, 2023
Phantom stock for non-employee directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares of phantom stock granted (in shares) 19,000  
Total compensation cost related to non-vested restricted shares not yet recognized (in dollars)   $ 0.5
Weighted average expected amortization period   4 months 13 days
Phantom stock for non-employee directors, Each non-employee director    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares of phantom stock granted (in shares) 2,375  
v3.24.0.1
Equity, Stock Repurchase (Details) - USD ($)
shares in Millions, $ in Millions
1 Months Ended 12 Months Ended
Apr. 27, 2021
Apr. 24, 2018
Jan. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stockholders' Equity            
Treasury stock retired (in dollars)       $ 0.0 $ 0.0 $ 0.0
Treasury stock, shares       1.7 1.2  
Payments for shares repurchased (in dollars)       $ 585.1 $ 730.5 $ 661.7
2021 Stock Repurchase Program            
Stockholders' Equity            
Value of shares authorized to be repurchased (in dollars) $ 2,000.0          
Repurchase of stock program, period 3 years          
Number of treasury shares retired       5.5 9.3 5.8
Treasury stock retired (in dollars)       $ 435.8 $ 689.7 $ 424.9
Number of shares repurchased       7.2 9.9 6.2
Payments for shares repurchased (in dollars)       $ 585.1 $ 730.5 $ 457.9
2018 Stock Repurchase Program            
Stockholders' Equity            
Value of shares authorized to be repurchased (in dollars)   $ 2,000.0        
Repurchase of stock program, period   3 years        
Number of treasury shares retired           2.8
Treasury stock retired (in dollars)           $ 184.0
Number of shares repurchased           3.1
Payments for shares repurchased (in dollars)           $ 203.8
Subsequent Event | 2021 Stock Repurchase Program            
Stockholders' Equity            
Number of shares repurchased     0.0      
Value of shares remaining that may be repurchased under the stock repurchase program (in dollars)     $ 226.5      
v3.24.0.1
Equity, Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Oct. 24, 2023
Oct. 23, 2023
Oct. 25, 2022
Oct. 24, 2022
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Equity                                      
Dividends declared per share (in dollars per share) $ 0.22 $ 0.21 $ 0.21 $ 0.20 $ 0.22 $ 0.21 $ 0.21 $ 0.21 $ 0.21 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.145 $ 0.145 $ 0.145 $ 0.85 $ 0.81 $ 0.635
Dividends declared                                 $ 507.4 $ 482.6 $ 379.7
Dividends paid (including those declared in the prior year)                                 $ 500.6 $ 477.4 $ 346.7
v3.24.0.1
Equity, Accumulated Other Comprehensive Income (Loss) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
contract
Dec. 31, 2021
USD ($)
Equity      
Balance at beginning of period $ 7,015.6    
Balance at end of period $ 8,346.5 $ 7,015.6  
Cash Flow Hedging      
Equity      
Number of forward contracts | contract 0 0  
Accumulated Other Comprehensive Loss      
Equity      
Balance at beginning of period $ (535.0) $ (286.5) $ (278.1)
Other comprehensive income (loss) before reclassification, net of tax (1.7) (261.7) (28.8)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 3.1 13.2 20.4
Balance at end of period (533.6) (535.0) (286.5)
Foreign Currency Translation Adjustment      
Equity      
Balance at beginning of period (413.0) (152.8) (86.6)
Other comprehensive income (loss) before reclassification, net of tax 0.3 (260.2) (66.2)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 0.0 0.0 0.0
Balance at end of period (412.7) (413.0) (152.8)
Foreign currency translation adjustments, tax 0.0 0.0 0.0
Unrealized Gain (Loss) on Hedging Activities      
Equity      
Balance at beginning of period 0.0 0.1 0.1
Other comprehensive income (loss) before reclassification, net of tax 0.0 (0.1) 0.0
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 0.0 0.0 0.0
Balance at end of period 0.0 0.0 0.1
Unrealized (gain) loss on hedging activities, tax 0.0 0.0 0.0
Defined Benefit Plan Liability Adjustment      
Equity      
Balance at beginning of period (122.0) (133.8) (191.6)
Other comprehensive income (loss) before reclassification, net of tax (2.0) (1.4) 37.4
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 3.1 13.2 20.4
Balance at end of period (120.9) (122.0) (133.8)
Pension and postretirement benefit plan adjustment, tax 1.1 (0.4) (12.3)
Amounts reclassified from Accumulated Other Comprehensive Income (Loss), tax $ (1.0) $ (4.3) (6.6)
Cash Flow Hedges [Member]      
Equity      
Number of forward contracts | contract 0 0  
Net Investment Hedges [Member]      
Equity      
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax $ 0.0 $ 0.0 $ 0.0
Number of forward contracts | contract 0    
v3.24.0.1
Earnings Per Share, Reconciliation (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Earnings Per Share      
Net income from continuing operations attributable to Amphenol Corporation $ 1,928.0 $ 1,902.3 $ 1,569.4
Income from discontinued operations attributable to Amphenol Corporation, net of income taxes of ($3.2) for 2021 0.0 0.0 21.4
Income taxes on income from discontinued operations attributable to Amphenol Corporation     3.2
Net income attributable to Amphenol Corporation $ 1,928.0 $ 1,902.3 $ 1,590.8
Weighted average common shares outstanding - Basic (in shares) 596.5 596.2 597.9
Effect of dilutive stock options (in shares) 24.1 24.8 27.6
Weighted average common shares outstanding - Diluted (in shares) 620.6 621.0 625.5
Net income per common share attributable to Amphenol Corporation - Basic:      
Net income per common share attributable to Amphenol Corporation - Basic, Continuing operations (in dollars per share) $ 3.23 $ 3.19 $ 2.62
Net income per common share attributable to Amphenol Corporation - Basic, Discontinued operations, net of income taxes (in dollars per share) 0 0 0.04
Net income per common share attributable to Amphenol Corporation - Basic (in dollars per share) 3.23 3.19 2.66
Net income per common share attributable to Amphenol Corporation - Diluted:      
Net income per common share attributable to Amphenol Corporation - Diluted, Continuing operations (in dollars per share) 3.11 3.06 2.51
Net income per common share attributable to Amphenol Corporation - Diluted, Discontinued operations, net of income taxes (in dollars per share) 0 0 0.03
Net income per common share attributable to Amphenol Corporation - Diluted (in dollars per share) $ 3.11 $ 3.06 $ 2.54
Anti-dilutive common shares      
Anti-dilutive stock options, excluded from the computations of earnings per share (in shares) 7.2 9.0 3.5
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Benefit obligation and plan assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Amounts recognized in the balance sheet as of December 31:      
Accrued pension and postretirement benefit obligations $ 143.0 $ 127.9  
Accumulated other comprehensive loss, net $ (533.6) $ (535.0)  
United States      
Weighted average assumptions used to determine projected benefit obligations:      
Rate of compensation increase (as a percent) 2.40% 2.40%  
Foreign Plans      
Weighted average assumptions used to determine projected benefit obligations:      
Rate of compensation increase (as a percent) 1.89% 1.83%  
Pension Benefits      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year $ 563.8 $ 761.2  
Service cost 3.8 6.0 $ 7.5
Interest cost 25.4 14.0 11.3
Plan amendments 0.0 2.8  
Actuarial (gain) loss 14.5 (165.4)  
Foreign exchange translation and other (9.5) (19.2)  
Benefits paid (36.2) (35.6)  
Projected benefit obligation at end of year 561.8 563.8 761.2
Change in plan assets:      
Fair value of plan assets at the beginning of the year 470.6 644.0  
Actual return on plan assets 44.8 (134.9)  
Employer contributions 5.4 6.3 6.8
Foreign exchange translation and other (3.0) (9.2)  
Benefits paid (36.2) (35.6)  
Fair value of plan assets at end of year 481.6 470.6 644.0
Over (under) funded status at end of year (80.2) (93.2)  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 21.9 13.6  
Other accrued expenses 4.1 4.4  
Accrued pension and postretirement benefit obligations 98.0 102.4  
Accumulated other comprehensive loss, net (122.9) (124.1)  
Accumulated benefit obligation      
Accumulated benefit obligation 557.0 560.1  
Pension Benefits | United States      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 388.2 495.3  
Service cost 2.5 3.5 4.2
Interest cost 18.6 10.6 8.6
Plan amendments 0.0 2.8  
Actuarial (gain) loss 8.8 (95.8)  
Foreign exchange translation and other 0.0 0.0  
Benefits paid (29.6) (28.2)  
Projected benefit obligation at end of year 388.5 388.2 495.3
Change in plan assets:      
Fair value of plan assets at the beginning of the year 387.0 527.5  
Actual return on plan assets 37.1 (113.4)  
Employer contributions 1.1 1.1  
Foreign exchange translation and other 0.0 0.0  
Benefits paid (29.6) (28.2)  
Fair value of plan assets at end of year 395.6 387.0 527.5
Over (under) funded status at end of year 7.1 (1.2)  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 21.2 12.9  
Other accrued expenses 1.2 1.2  
Accrued pension and postretirement benefit obligations 12.9 12.9  
Accumulated other comprehensive loss, net $ (104.0) $ (108.5)  
Weighted average assumptions used to determine projected benefit obligations:      
Benefit obligation discount rate (as a percent) 4.97% 5.18%  
Increase (decrease) in benefit obligation due to change in discount rate $ 7.0    
Accumulated benefit obligation      
Accumulated benefit obligation 388.2 $ 387.8  
Pension Benefits | Foreign Plans      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 175.6 265.9  
Service cost 1.3 2.5 3.3
Interest cost 6.8 3.4 2.7
Plan amendments 0.0 0.0  
Actuarial (gain) loss 5.7 (69.6)  
Foreign exchange translation and other (9.5) (19.2)  
Benefits paid (6.6) (7.4)  
Projected benefit obligation at end of year 173.3 175.6 265.9
Change in plan assets:      
Fair value of plan assets at the beginning of the year 83.6 116.5  
Actual return on plan assets 7.7 (21.5)  
Employer contributions 4.3 5.2  
Foreign exchange translation and other (3.0) (9.2)  
Benefits paid (6.6) (7.4)  
Fair value of plan assets at end of year 86.0 83.6 $ 116.5
Over (under) funded status at end of year (87.3) (92.0)  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 0.7 0.7  
Other accrued expenses 2.9 3.2  
Accrued pension and postretirement benefit obligations 85.1 89.5  
Accumulated other comprehensive loss, net $ (18.9) $ (15.6)  
Weighted average assumptions used to determine projected benefit obligations:      
Benefit obligation discount rate (as a percent) 3.72% 4.20%  
Accumulated benefit obligation      
Accumulated benefit obligation $ 168.8 $ 172.3  
Largest foreign pension plan | Pension Benefits | Foreign Plans      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 71.5    
Projected benefit obligation at end of year $ 81.7 $ 71.5  
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Pension plans with an accumulated benefit obligation in excess of plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
United States    
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]    
Accumulated benefit obligation $ 23.1 $ 22.8
Fair value of plan assets 9.1 8.9
Foreign Plans    
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]    
Accumulated benefit obligation 142.3 147.2
Fair value of plan assets $ 57.0 $ 57.7
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Pension plans with a projected benefit obligation in excess of plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
United States    
Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]    
Projected benefit obligation $ 23.2 $ 22.9
Fair value of plan assets 9.1 8.9
Foreign Plans    
Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]    
Projected benefit obligation 169.3 170.7
Fair value of plan assets $ 81.2 $ 77.9
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Amount Included in Accumulated Other Comprehensive Loss Not Yet Recognized as Expense (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net $ 146.7 $ 147.3
Prior service cost 5.3 7.0
United States    
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net 131.0 136.3
Prior service cost 4.8 6.5
Foreign Plans    
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net 15.7 11.0
Prior service cost $ 0.5 $ 0.5
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Net pension expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
United States      
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Rate of compensation increase (as a percent) 2.40% 2.40% 2.40%
Foreign Plans      
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Rate of compensation increase (as a percent) 1.93% 1.75% 1.75%
Pension Benefits      
Components of net pension expense:      
Service cost $ 3.8 $ 6.0 $ 7.5
Interest cost $ 25.4 $ 14.0 $ 11.3
Interest cost, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Expected return on plan assets $ (29.1) $ (29.9) $ (31.2)
Expected return on plan assets, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Amortization of prior service cost $ 1.8 $ 1.4 $ 2.1
Amortization of prior service cost, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Amortization of net actuarial losses $ 2.3 $ 16.1 $ 24.8
Amortization of actuarial losses, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Net pension (income) expense $ 4.2 $ 7.6 $ 14.5
Pension Benefits | United States      
Components of net pension expense:      
Service cost 2.5 3.5 4.2
Interest cost 18.6 10.6 8.6
Expected return on plan assets (24.6) (26.5) (28.1)
Amortization of prior service cost 1.7 1.4 1.9
Amortization of net actuarial losses 1.6 11.9 17.8
Net pension (income) expense $ (0.2) $ 0.9 $ 4.4
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Discount rate (as a percent) 5.18% 2.69% 2.30%
Expected long-term return on assets (as a percent) 5.50% 5.50% 6.00%
Pension Benefits | Foreign Plans      
Components of net pension expense:      
Service cost $ 1.3 $ 2.5 $ 3.3
Interest cost 6.8 3.4 2.7
Expected return on plan assets (4.5) (3.4) (3.1)
Amortization of prior service cost 0.1 0.0 0.2
Amortization of net actuarial losses 0.7 4.2 7.0
Net pension (income) expense $ 4.4 $ 6.7 $ 10.1
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Discount rate (as a percent) 4.20% 1.58% 1.12%
Expected long-term return on assets (as a percent) 5.45% 3.35% 2.71%
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Expected long-term rate of return (Details) - Pension Benefits - United States
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure      
Expected long-term return on assets (as a percent) 5.50% 5.50% 6.00%
Equity securities      
Defined Benefit Plan Disclosure      
Target allocation (as a percent) 15.00% 25.00%  
Actual Investment Allocation used during the year (as a percent) as the basis for determining the expected long-term rate of return 25.00%    
Expected long-term return on assets (as a percent) 6.00%    
Fixed income securities      
Defined Benefit Plan Disclosure      
Target allocation (as a percent) 85.00% 75.00%  
Actual Investment Allocation used during the year (as a percent) as the basis for determining the expected long-term rate of return 75.00%    
Expected long-term return on assets (as a percent) 5.30%    
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Fair value measurements of plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure      
Fair value of pension plan assets $ 481.6 $ 470.6 $ 644.0
U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 29.0 44.1  
U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 8.7 13.0  
International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 22.1 28.7  
International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 25.7 38.4  
Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 5.6 14.6  
U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 113.5 83.6  
Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 210.9 181.3  
International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 39.7 34.0  
Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 19.5 24.3  
Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 6.9 8.6  
Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 19.2 28.3  
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 12.3 19.7  
Quoted Prices in Active Markets for Identical Assets (Level 1) | International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 6.9 8.6  
Significant Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 437.3 403.4  
Significant Observable Inputs (Level 2) | U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 29.0 44.1  
Significant Observable Inputs (Level 2) | U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 8.7 13.0  
Significant Observable Inputs (Level 2) | International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 9.8 9.0  
Significant Observable Inputs (Level 2) | International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 25.7 38.4  
Significant Observable Inputs (Level 2) | Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Observable Inputs (Level 2) | U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 113.5 83.6  
Significant Observable Inputs (Level 2) | Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 210.9 181.3  
Significant Observable Inputs (Level 2) | International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 39.7 34.0  
Significant Observable Inputs (Level 2) | Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Observable Inputs (Level 2) | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 19.5 24.3 $ 34.1
Significant Unobservable Inputs (Level 3) | U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Significant Unobservable Inputs (Level 3) | Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 19.5 24.3  
Significant Unobservable Inputs (Level 3) | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 5.6 14.6  
Fair Value Measured At Net Asset Value | U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 5.6 14.6  
Fair Value Measured At Net Asset Value | U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 0.0  
Fair Value Measured At Net Asset Value | Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets $ 0.0 $ 0.0  
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Level 3 plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure    
Fair value of plan assets at the beginning of the year $ 470.6 $ 644.0
Foreign currency translation (3.0) (9.2)
Fair value of plan assets at end of year 481.6 470.6
Significant Unobservable Inputs (Level 3)    
Defined Benefit Plan Disclosure    
Fair value of plan assets at the beginning of the year 24.3 34.1
Unrealized gains (losses), net 1.6 (6.2)
Purchases, sales and settlements, net (7.2) (1.3)
Foreign currency translation 0.8 (2.3)
Fair value of plan assets at end of year $ 19.5 $ 24.3
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Other (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Pension Benefits      
Defined Benefit Plan, Contributions      
Plan contributions by employer $ 5.4 $ 6.3 $ 6.8
Expected benefits payments      
2024 46.0    
2025 37.6    
2026 38.1    
2027 38.4    
2028 38.6    
2029-2033 188.7    
Pension Benefits | United States      
Defined Benefit Plan, Contributions      
Plan contributions by employer 1.1 1.1  
Expected benefits payments      
2024 38.5    
2025 29.9    
2026 30.1    
2027 30.1    
2028 30.0    
2029-2033 142.6    
Pension Benefits | Foreign Plans      
Defined Benefit Plan, Contributions      
Plan contributions by employer 4.3 5.2  
Expected benefits payments      
2024 7.5    
2025 7.7    
2026 8.0    
2027 8.3    
2028 8.6    
2029-2033 46.1    
Other Foreign Statutory Plans [Member]      
Net liability      
Net liability for foreign subsidiaries with benefits under local statutory plans $ 30.9 $ 15.6  
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, OPEB benefit obligation (Details) - Other Postretirement Benefits - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Postretirement Benefits [Line Items]    
Projected benefit obligation $ 3.9 $ 4.3
Benefit obligation discount rate (as a percent) 5.00% 5.22%
v3.24.0.1
Benefit Plans and Other Postretirement Benefits, Defined contribution plans (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Contribution Plan Disclosure        
Contributions to U.S. defined contribution plans by the Company, maximum percentage of eligible compensation 7.00% 7.00% 6.00% 6.00%
Matching contributions to U.S. defined contribution plans by the Company   $ 24.0 $ 18.0 $ 16.2
v3.24.0.1
Leases, Operating lease cost (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Leases      
Operating lease cost $ 127.1 $ 121.4 $ 118.2
v3.24.0.1
Leases, Operating lease maturity table and account balances (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Leases    
2024 $ 99.8  
2025 72.7  
2026 53.3  
2027 36.9  
2028 22.8  
Thereafter 46.7  
Total future minimum lease payments 332.2  
Less imputed interest (28.5)  
Total operating lease liabilities 303.7 $ 293.7
Operating lease right-of-use assets (included in other long-term assets) $ 301.5 $ 289.5
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other Assets, Noncurrent Other Assets, Noncurrent
Other accrued expenses $ 91.6 $ 85.2
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other Liabilities, Current Other Liabilities, Current
Other long-term liabilities $ 212.1 $ 208.5
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] Other Liabilities, Noncurrent Other Liabilities, Noncurrent
Operating Lease, Liability, Statement of Financial Position [Extensible List] Other Liabilities, Current, Other Liabilities, Noncurrent Other Liabilities, Current, Other Liabilities, Noncurrent
v3.24.0.1
Leases, Other supplemental data related to operating leases (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Leases      
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 114.3 $ 109.3 $ 103.2
Right-of-use assets obtained in exchange for lease liabilities $ 115.2 $ 164.5 $ 121.5
Weighted Average Remaining Lease Term 5 years 5 years 5 years
Weighted Average Discount Rate 3.60% 2.70% 2.20%
v3.24.0.1
Acquisitions (Details)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Jan. 01, 2022
segment
Dec. 01, 2021
USD ($)
Apr. 07, 2021
USD ($)
Dec. 09, 2020
segment
$ / shares
Jun. 30, 2023
agreement
Dec. 31, 2023
USD ($)
segment
agreement
Dec. 31, 2022
USD ($)
agreement
segment
Dec. 31, 2021
USD ($)
agreement
segment
Acquisitions                
Number of reportable business segments | segment 3         3 3 2
Number of acquisitions | agreement           10 2 7
Acquisition-related expenses           $ 34.6 $ 21.5 $ 70.4
Acquisition-related expenses, net of tax           30.2 18.4 57.3
Purchase price, net of cash acquired           970.4 288.2 2,225.4
Bargain purchase gain on acquisition           5.4 0.0 0.0
Goodwill           7,092.4 6,446.1 6,376.8
Amortization expense           86.0 81.0 86.4
Current assets held for sale               0.0
Current liabilities held for sale               0.0
Divested MTS business (including T&S, excluding Sensors business) [Member]                
Acquisitions                
Proceeds from sale of business   $ 750.0            
MTS Systems Corporation                
Acquisitions                
Number of reportable business segments | segment       2        
Purchase price, net of cash acquired     $ 1,300.0          
Acquisition price per share | $ / shares       $ 58.50        
Total enterprise value of Acquiree (aggregate purchase price, net of cash acquired and including the repayment of all outstanding debt and certain liabilities)     $ 1,700.0          
Percentage acquired     100.00%          
Senior note assumed in business acquisition     $ 350.0          
Senior note assumed from business acquisition and repaid and settled shortly after closing, including accrued interest and make-whole premium     387.3          
Deferred tax liability     47.0          
MTS Sensors [Member]                
Acquisitions                
Purchase price of retained business, net of cash acquired and net of proceeds received from divested business.   950.0            
Goodwill     738.7          
Goodwill deductible for tax purposes     0.0          
Indefinite-lived intangible assets     54.0          
Definite-lived intangible assets     178.2          
Halo Technology Ltd [Member]                
Acquisitions                
Purchase price, net of cash acquired   $ 694.0            
Percentage acquired   97.00%            
Goodwill   $ 522.1            
Goodwill deductible for tax purposes   0.0            
Indefinite-lived intangible assets   29.0            
Definite-lived intangible assets   168.0            
2023 Acquisitions [Member]                
Acquisitions                
Goodwill           609.4    
Goodwill deductible for tax purposes           145.0    
Definite-lived intangible assets           $ 181.3    
Customer relationships | MTS Sensors [Member]                
Acquisitions                
Definite-lived intangible assets     $ 122.9          
Useful lives     11 years          
Customer relationships | Halo Technology Ltd [Member]                
Acquisitions                
Definite-lived intangible assets   $ 44.0            
Useful lives   13 years            
Customer relationships | 2023 Acquisitions [Member] | Minimum                
Acquisitions                
Useful lives           6 years    
Customer relationships | 2023 Acquisitions [Member] | Maximum                
Acquisitions                
Useful lives           15 years    
Proprietary technology | MTS Sensors [Member]                
Acquisitions                
Definite-lived intangible assets     $ 39.1          
Useful lives     15 years          
Proprietary technology | Halo Technology Ltd [Member]                
Acquisitions                
Definite-lived intangible assets   $ 115.0            
Useful lives   15 years            
Proprietary technology | 2023 Acquisitions [Member] | Minimum                
Acquisitions                
Useful lives           6 years    
Proprietary technology | 2023 Acquisitions [Member] | Maximum                
Acquisitions                
Useful lives           15 years    
Backlog | MTS Sensors [Member]                
Acquisitions                
Definite-lived intangible assets     $ 16.2          
Useful lives     3 months          
Backlog | Halo Technology Ltd [Member]                
Acquisitions                
Definite-lived intangible assets   $ 9.0            
Useful lives   1 month            
Backlog | 2021 Acquisitions [Member]                
Acquisitions                
Amortization expense               $ 25.2
Backlog | 2022 Acquisitions [Member]                
Acquisitions                
Amortization expense             $ 12.0  
Backlog | 2023 Acquisitions [Member]                
Acquisitions                
Number of acquisitions | agreement           3    
Useful lives           3 months    
Amortization expense           $ 12.4    
Bargain Purchase [Member] | 2023 Acquisitions [Member]                
Acquisitions                
Number of acquisitions | agreement         1      
Harsh Environment Solutions                
Acquisitions                
Number of acquisitions | agreement           5 1 1
Goodwill           $ 2,009.3 $ 1,667.1 $ 1,663.7
Interconnect and Sensor Systems                
Acquisitions                
Number of acquisitions | agreement           3 1 3
Goodwill           $ 2,105.6 $ 1,870.9 $ 1,763.0
Communications Solutions                
Acquisitions                
Number of acquisitions | agreement           2   3
Goodwill           $ 2,977.5 $ 2,908.1 $ 2,950.1
Halo Technology Limited [Member] | Maximum                
Acquisitions                
Noncontrolling interest, ownership percentage by noncontrolling owners   3.00%            
v3.24.0.1
Acquisitions, Discontinued Operations (Details)
$ in Millions
12 Months Ended
Jan. 01, 2022
segment
Dec. 01, 2021
USD ($)
Dec. 09, 2020
segment
Dec. 31, 2023
segment
Dec. 31, 2022
segment
Dec. 31, 2021
segment
Apr. 07, 2021
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Number of reportable business segments | segment 3     3 3 2  
Divested MTS business (including T&S, excluding Sensors business) [Member]              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Proceeds from sale of business | $   $ 750.0          
Contingent consideration | $             $ 28.7
MTS Systems Corporation              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Number of reportable business segments | segment     2        
v3.24.0.1
Goodwill and Other Intangible Assets, Goodwill (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Goodwill.    
Goodwill, Beginning Balance $ 6,446.1 $ 6,376.8
Acquisition-related 612.4 190.0
Foreign currency translation 33.9 (120.7)
Goodwill, Ending Balance 7,092.4 6,446.1
Harsh Environment Solutions    
Goodwill.    
Goodwill, Beginning Balance 1,667.1 1,663.7
Acquisition-related 334.9 33.6
Foreign currency translation 7.3 (30.2)
Goodwill, Ending Balance 2,009.3 1,667.1
Communications Solutions    
Goodwill.    
Goodwill, Beginning Balance 2,908.1 2,950.1
Acquisition-related 68.8 (5.1)
Foreign currency translation 0.6 (36.9)
Goodwill, Ending Balance 2,977.5 2,908.1
Interconnect and Sensor Systems    
Goodwill.    
Goodwill, Beginning Balance 1,870.9 1,763.0
Acquisition-related 208.7 161.5
Foreign currency translation 26.0 (53.6)
Goodwill, Ending Balance $ 2,105.6 $ 1,870.9
v3.24.0.1
Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Intangible Assets    
Weighted average useful lives of acquired amortizable intangible assets 10 years  
Gross Carrying Amount (definite-lived) $ 1,261.8 $ 1,073.9
Accumulated Amortization 696.1 608.9
Net Carrying Amount, (definite-lived) 565.7 465.0
Indefinite-lived trade name intangible asset 269.1 269.1
Intangible assets, gross (excluding goodwill) 1,530.9 1,343.0
Net Carrying Amount, intangible assets $ 834.8 734.1
Customer relationships    
Intangible Assets    
Weighted average useful lives of acquired amortizable intangible assets 10 years  
Gross Carrying Amount (definite-lived) $ 782.6 677.0
Accumulated Amortization 450.6 398.3
Net Carrying Amount, (definite-lived) $ 332.0 278.7
Proprietary technology    
Intangible Assets    
Weighted average useful lives of acquired amortizable intangible assets 13 years  
Gross Carrying Amount (definite-lived) $ 365.1 310.0
Accumulated Amortization 146.1 123.8
Net Carrying Amount, (definite-lived) $ 219.0 186.2
Backlog and other    
Intangible Assets    
Weighted average useful lives of acquired amortizable intangible assets 1 year  
Gross Carrying Amount (definite-lived) $ 114.1 86.9
Accumulated Amortization 99.4 86.8
Net Carrying Amount, (definite-lived) $ 14.7 $ 0.1
v3.24.0.1
Goodwill and Other Intangible Assets, Amortization (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Intangible assets      
Amortization expense $ 86.0 $ 81.0 $ 86.4
Amortization expense estimated for each of the next five fiscal years      
2024 93.0    
2025 68.9    
2026 67.3    
2027 60.5    
2028 53.2    
2021 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense     $ 25.2
2022 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense   $ 12.0  
2023 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense $ 12.4    
v3.24.0.1
Reportable Business Segments and International Operations, Net sales by segment (Details)
$ in Millions
12 Months Ended
Jan. 01, 2022
segment
individual
Dec. 31, 2023
USD ($)
individual
segment
Dec. 31, 2022
USD ($)
individual
segment
Dec. 31, 2021
USD ($)
segment
Segment reporting information        
Number of reportable business segments | segment 3 3 3 2
Number of segment managers | individual 3 3 3  
Net sales   $ 12,554.7 $ 12,623.0 $ 10,876.3
Communications Solutions, Interconnect and Sensor Systems, Harsh Environment Solutions [Member]        
Segment reporting information        
Number of reportable business segments in which businesses previously reported in the Interconnect Products and Assemblies segment have now been aligned to. | segment 1      
Operating Segment        
Segment reporting information        
Net sales   12,554.7 12,623.0 10,876.3
Operating Segment | Harsh Environment Solutions        
Segment reporting information        
Net sales   3,530.8 3,107.2 2,752.2
Operating Segment | Communications Solutions        
Segment reporting information        
Net sales   4,912.8 5,652.4 4,832.1
Operating Segment | Interconnect and Sensor Systems        
Segment reporting information        
Net sales   4,111.1 3,863.4 3,292.0
Inter-Segment        
Segment reporting information        
Net sales   159.2 174.7 169.3
Inter-Segment | Harsh Environment Solutions        
Segment reporting information        
Net sales   90.8 78.1 70.6
Inter-Segment | Communications Solutions        
Segment reporting information        
Net sales   50.2 79.4 75.0
Inter-Segment | Interconnect and Sensor Systems        
Segment reporting information        
Net sales   $ 18.2 $ 17.2 $ 23.7
v3.24.0.1
Reportable Business Segments and International Operations, Reconciliation of Segment Operating Income to Consolidated Income Before Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment Reporting Information      
Operating income $ 2,559.6 $ 2,585.8 $ 2,105.1
Stock-based compensation expense (99.0) (89.5) (83.0)
Acquisition-related expenses (34.6) (21.5) (70.4)
Other operating expenses (67.9) (67.0) (61.1)
Interest expense (139.5) (128.4) (115.5)
Gain on bargain purchase acquisition 5.4 0.0 0.0
Other income (expense), net 29.3 10.0 (0.4)
Income from continuing operations before income taxes 2,454.8 2,467.4 1,989.2
Operating Segment      
Segment Reporting Information      
Operating income 2,761.1 2,763.8 2,319.6
Operating Segment | Harsh Environment Solutions      
Segment Reporting Information      
Operating income 943.9 801.6 708.2
Operating Segment | Communications Solutions      
Segment Reporting Information      
Operating income 1,063.5 1,245.7 1,023.3
Operating Segment | Interconnect and Sensor Systems      
Segment Reporting Information      
Operating income $ 753.7 $ 716.5 $ 588.1
v3.24.0.1
Reportable Business Segments and International Operations, Depreciation & Amortization by Segment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Segment reporting information      
Depreciation and amortization $ 406.4 $ 392.9 $ 395.6
Harsh Environment Solutions      
Segment reporting information      
Depreciation and amortization 91.0 78.2 73.2
Communications Solutions      
Segment reporting information      
Depreciation and amortization 177.0 183.7 179.2
Interconnect and Sensor Systems      
Segment reporting information      
Depreciation and amortization 131.1 124.5 136.1
Corporate and Other      
Segment reporting information      
Depreciation and amortization $ 7.3 $ 6.5 $ 7.1
v3.24.0.1
Reportable Business Segments and International Operations, Geographic information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenues and long-lived assets by geographical area      
Net sales $ 12,554.7 $ 12,623.0 $ 10,876.3
Long-lived assets 1,616.2 1,493.8 1,420.2
United States      
Revenues and long-lived assets by geographical area      
Net sales 4,405.4 4,155.2 3,155.9
Long-lived assets 442.6 386.1 362.1
China      
Revenues and long-lived assets by geographical area      
Net sales 2,884.0 3,265.0 3,044.4
Long-lived assets 455.5 470.1 451.7
Other foreign locations      
Revenues and long-lived assets by geographical area      
Net sales 5,265.3 5,202.8 4,676.0
Long-lived assets $ 718.1 $ 637.6 $ 606.4
v3.24.0.1
Reportable Business Segments and International Operations, Disaggregation of Net Sales (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Revenue recognition      
Net sales $ 12,554.7 $ 12,623.0 $ 10,876.3
United States      
Revenue recognition      
Net sales 4,405.4 4,155.2 3,155.9
China      
Revenue recognition      
Net sales 2,884.0 3,265.0 3,044.4
Other foreign locations      
Revenue recognition      
Net sales 5,265.3 5,202.8 4,676.0
End customers and contract manufacturers      
Revenue recognition      
Net sales 10,462.2 10,370.0 9,038.2
Distributors and resellers      
Revenue recognition      
Net sales 2,092.5 2,253.0 1,838.1
Communications Solutions | United States      
Revenue recognition      
Net sales 1,395.8 1,495.3 958.2
Communications Solutions | China      
Revenue recognition      
Net sales 1,669.4 1,939.6 1,914.6
Communications Solutions | Other foreign locations      
Revenue recognition      
Net sales 1,847.6 2,217.5 1,959.3
Communications Solutions | End customers and contract manufacturers      
Revenue recognition      
Net sales 3,933.2 4,469.0 3,889.0
Communications Solutions | Distributors and resellers      
Revenue recognition      
Net sales 979.6 1,183.4 943.1
Interconnect and Sensor Systems | United States      
Revenue recognition      
Net sales 1,219.1 1,101.7 845.5
Interconnect and Sensor Systems | China      
Revenue recognition      
Net sales 863.4 887.9 692.7
Interconnect and Sensor Systems | Other foreign locations      
Revenue recognition      
Net sales 2,028.6 1,873.8 1,753.8
Interconnect and Sensor Systems | End customers and contract manufacturers      
Revenue recognition      
Net sales 3,947.4 3,724.6 3,168.5
Interconnect and Sensor Systems | Distributors and resellers      
Revenue recognition      
Net sales 163.7 138.8 123.5
Harsh Environment Solutions | United States      
Revenue recognition      
Net sales 1,790.5 1,558.2 1,352.2
Harsh Environment Solutions | China      
Revenue recognition      
Net sales 351.2 437.5 437.1
Harsh Environment Solutions | Other foreign locations      
Revenue recognition      
Net sales 1,389.1 1,111.5 962.9
Harsh Environment Solutions | End customers and contract manufacturers      
Revenue recognition      
Net sales 2,581.6 2,176.4 1,980.7
Harsh Environment Solutions | Distributors and resellers      
Revenue recognition      
Net sales $ 949.2 $ 930.8 $ 771.5
v3.24.0.1
Reportable Business Segments and International Operations, Other (Details)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Net sales | Customer risk      
Concentration risk      
Major customers disclosure No No No
v3.24.0.1
Commitments and Contingencies (Details)
$ in Millions
Dec. 31, 2023
USD ($)
Commitments and Contingencies  
Purchase commitments of certain goods and services in 2024 $ 932.4
Purchase commitments of certain goods and services in 2025 and 2026 28.1
Purchase commitments of certain goods and services, thereafter $ 8.2
v3.24.0.1
Subsequent Events (Details)
$ in Millions
12 Months Ended
Jan. 30, 2024
USD ($)
Dec. 31, 2023
USD ($)
agreement
Dec. 31, 2022
USD ($)
agreement
Dec. 31, 2021
USD ($)
agreement
Subsequent Events        
Number of acquisitions | agreement   10 2 7
Purchase price, net of cash acquired | $   $ 970.4 $ 288.2 $ 2,225.4
Harsh Environment Solutions        
Subsequent Events        
Number of acquisitions | agreement   5 1 1
Subsequent Event | Carlisle Interconnect Technologies Acquisition [Member]        
Subsequent Events        
Business acquisition, date of agreement Jan. 30, 2024      
Expected price of acquisition | $ $ 2,025.0      
v3.24.0.1
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Allowance for doubtful accounts      
Valuation and Qualifying Accounts      
Balance at beginning of period $ 63.9 $ 43.5 $ 44.8
Charged to cost and expenses 13.4 20.2 1.5
Additions (Deductions) (8.9) 0.2 (2.8)
Balance at end of period 68.4 63.9 43.5
Valuation allowance on deferred tax assets      
Valuation and Qualifying Accounts      
Balance at beginning of period 42.2 44.9 40.1
Charged to cost and expenses 3.4 (1.1) 6.3
Additions (Deductions) 1.0 (1.6) (1.5)
Balance at end of period $ 46.6 $ 42.2 $ 44.9