AMPHENOL CORP /DE/, 10-K filed on 2/7/2025
Annual Report
v3.25.0.1
Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Jan. 31, 2025
Jun. 30, 2024
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, 2024    
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     $ 70,603
Entity Common Stock, Shares Outstanding   1,211,081,107  
ICFR Auditor Attestation Flag true    
Document Fiscal Year Focus 2024    
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, 2024
Document and Entity Information  
Auditor Name Deloitte & Touche LLP
Auditor Firm ID 34
Auditor Location Hartford, Connecticut
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Consolidated Statements of Income - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Consolidated Statements of Income      
Net sales $ 15,222.7 $ 12,554.7 $ 12,623.0
Cost of sales 10,083.0 8,470.6 8,594.8
Gross profit 5,139.7 4,084.1 4,028.2
Acquisition-related expenses 127.4 34.6 21.5
Selling, general and administrative expenses 1,855.4 1,489.9 1,420.9
Operating income 3,156.9 2,559.6 2,585.8
Interest expense (217.0) (139.5) (128.4)
Gain on bargain purchase acquisition 0.0 5.4 0.0
Other income (expense), net 72.0 29.3 10.0
Income before income taxes 3,011.9 2,454.8 2,467.4
Provision for income taxes (570.3) (509.3) (550.6)
Net income 2,441.6 1,945.5 1,916.8
Less: Net income attributable to noncontrolling interests (17.6) (17.5) (14.5)
Net income attributable to Amphenol Corporation $ 2,424.0 $ 1,928.0 $ 1,902.3
Net income attributable to Amphenol Corporation per common share - Basic (in dollars per share) $ 2.01 $ 1.62 $ 1.6
Weighted average common shares outstanding - Basic (in shares) 1,203.8 1,193.0 1,192.3
Net income attributable to Amphenol Corporation per common share - Diluted (in dollars per share) $ 1.92 $ 1.55 $ 1.53
Weighted average common shares outstanding - Diluted (in shares) 1,263.6 1,241.2 1,242.0
Dividends declared per common share (in dollars per share) $ 0.55 $ 0.425 $ 0.405
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Consolidated Statements of Comprehensive Income - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Consolidated Statements of Comprehensive Income      
Net income $ 2,441.6 $ 1,945.5 $ 1,916.8
Total other comprehensive income (loss), net of tax:      
Foreign currency translation adjustments (201.1) (0.9) (265.2)
Unrealized gain (loss) on hedging activities 0.0 0.0 (0.1)
Pension and postretirement benefit plan adjustment 16.6 1.1 11.8
Total other comprehensive income (loss), net of tax (184.5) 0.2 (253.5)
Total comprehensive income 2,257.1 1,945.7 1,663.3
Less: Comprehensive income attributable to noncontrolling interests (15.8) (16.3) (9.5)
Comprehensive income attributable to Amphenol Corporation $ 2,241.3 $ 1,929.4 $ 1,653.8
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Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Current Assets:    
Cash and cash equivalents $ 3,317.0 $ 1,475.0
Short-term investments 18.4 185.2
Total cash, cash equivalents and short-term investments 3,335.4 1,660.2
Accounts receivable, less allowance for doubtful accounts of $66.5 and $68.4, respectively 3,287.9 2,618.4
Inventories 2,545.7 2,167.1
Prepaid expenses and other current assets 517.0 389.6
Total current assets 9,686.0 6,835.3
Property, plant and equipment, net 1,711.8 1,314.7
Goodwill 8,236.2 7,092.4
Other intangible assets, net 1,225.1 834.8
Other long-term assets 581.1 449.2
Total assets 21,440.2 16,526.4
Current Liabilities:    
Accounts payable 1,819.4 1,350.9
Accrued salaries, wages and employee benefits 529.8 412.8
Accrued income taxes 199.0 166.0
Accrued dividends 199.5 131.7
Other accrued expenses 934.4 737.5
Current portion of long-term debt 401.7 353.8
Total current liabilities 4,083.8 3,152.7
Long-term debt, less current portion 6,484.4 3,983.5
Accrued pension and postretirement benefit obligations 129.8 143.0
Deferred income taxes 376.7 367.0
Other long-term liabilities 509.4 453.7
Total Liabilities 11,584.1 8,099.9
Commitments and contingent liabilities (Note 14)
Redeemable noncontrolling interests 8.7 30.7
Equity:    
Class A Common Stock, $0.001 par value, 2,000.0 shares authorized; 1,212.9 shares issued and 1,209.3 shares outstanding at December 31, 2024; 1,201.3 shares issued and 1,197.8 shares outstanding at December 31, 2023 1.2 1.2
Additional paid-in capital 3,601.8 3,100.6
Retained earnings 7,105.0 5,921.1
Treasury stock, at cost; 3.6 shares and 3.5 shares as of December 31, 2024 and 2023, respectively (199.7) (142.8)
Accumulated other comprehensive loss (716.3) (533.6)
Total stockholders' equity attributable to Amphenol Corporation 9,792.0 8,346.5
Noncontrolling interests 55.4 49.3
Total equity 9,847.4 8,395.8
Total Liabilities, Redeemable Noncontrolling Interests and Equity $ 21,440.2 $ 16,526.4
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Consolidated Balance Sheets (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Dec. 31, 2024
Dec. 31, 2023
Consolidated Balance Sheets    
Allowance for doubtful accounts $ 66.5 $ 68.4
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 1,212.9 1,201.3
Class A Common Stock, shares outstanding 1,209.3 1,197.8
Treasury stock, shares 3.6 3.5
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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, 2021 $ 1.2 $ (100.0) $ 2,408.4 $ 4,278.9 $ (286.5) $ 58.1   $ 6,360.1
Balance (in shares) at Dec. 31, 2021 1,201.4              
Balance (in shares) at Dec. 31, 2021   (3.2)            
Redeemable noncontrolling interest, balance at beginning 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  
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests         (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)   (19.8)            
Retirement of treasury stock $ 0.0 $ 689.7   (689.7)       0.0
Retirement of treasury stock (in shares) (18.7)              
Retirement of treasury stock (in shares)   18.7            
Stock options exercised (in shares) 9.3 1.9            
Stock options exercised, including tax benefit $ 0.0 $ 61.0 153.7 (29.5)       185.2
Dividends declared       (482.6)       (482.6)
Stock-based compensation expense     89.5         89.5
Balance at end of period at Dec. 31, 2022 $ 1.2 $ (79.8) 2,649.8 4,979.4 (535.0) 57.9   7,073.5
Balance (in shares) at Dec. 31, 2022 1,192.0              
Balance (in shares) at Dec. 31, 2022   (2.4)            
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2022             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  
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests         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)   (14.4)            
Retirement of treasury stock $ 0.0 $ 435.8   (435.8)       0.0
Retirement of treasury stock (in shares) (10.9)              
Retirement of treasury stock (in shares)   10.9            
Stock options exercised (in shares) 20.2 2.4            
Stock options exercised, including tax benefit $ 0.0 $ 86.3 351.8 (43.1)       395.0
Dividends declared       (507.4)       (507.4)
Stock-based compensation expense     99.0         99.0
Balance at end of period at Dec. 31, 2023 $ 1.2 $ (142.8) 3,100.6 5,921.1 (533.6) 49.3   $ 8,395.8
Balance (in shares) at Dec. 31, 2023               1,197.8
Balance (in shares) at Dec. 31, 2023 1,201.3             1,201.3
Balance (in shares) at Dec. 31, 2023   (3.5)           (3.5)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2023             30.7 $ 30.7
Increase (Decrease) In Equity                
Net income, excluding portion attributable to redeemable noncontrolling interest       2,424.0   16.0   2,440.0
Net income, redeemable non-controlling interest             1.6  
Other comprehensive income (loss), excluding portion attributable to redeemable noncontrolling interests         (182.7) (1.3)   (184.0)
Redeemable noncontrolling interest, other comprehensive income loss net of tax             (0.5)  
Increase in noncontrolling interests associated with capital contributions           1.5   1.5
Purchase of noncontrolling interest     0.2     (0.1) (23.1) 0.1
Distributions to shareholders of noncontrolling interests           (10.0)   (10.0)
Purchase of treasury stock   $ (689.3)           (689.3)
Purchase of treasury stock (in shares)   (11.1)            
Retirement of treasury stock $ 0.0 $ 513.1   (513.1)       0.0
Retirement of treasury stock (in shares) (8.3)              
Retirement of treasury stock (in shares)   8.3            
Stock options exercised (in shares) 19.9 2.7            
Stock options exercised, including tax benefit $ 0.0 $ 119.3 391.5 (64.1)       446.7
Dividends declared       (662.9)       (662.9)
Stock-based compensation expense     109.5         109.5
Balance at end of period at Dec. 31, 2024 $ 1.2 $ (199.7) $ 3,601.8 $ 7,105.0 $ (716.3) $ 55.4   $ 9,847.4
Balance (in shares) at Dec. 31, 2024               1,209.3
Balance (in shares) at Dec. 31, 2024 1,212.9             1,212.9
Balance (in shares) at Dec. 31, 2024   (3.6)           (3.6)
Redeemable noncontrolling interest, balance at end of period at Dec. 31, 2024             $ 8.7 $ 8.7
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Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
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, 2024
Dec. 31, 2023
Dec. 31, 2022
Statements of Changes in Equity                              
Dividends declared per share (in dollars per share) $ 0.165 $ 0.165 $ 0.11 $ 0.11 $ 0.11 $ 0.105 $ 0.105 $ 0.105 $ 0.105 $ 0.1 $ 0.1 $ 0.1 $ 0.55 $ 0.425 $ 0.405
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Consolidated Statements of Cash Flow - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Cash from operating activities:      
Net income $ 2,441.6 $ 1,945.5 $ 1,916.8
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 572.5 406.4 392.9
Stock-based compensation expense 109.5 99.0 89.5
Deferred income tax provision (benefit) (82.8) (58.8) (4.7)
Gain on bargain purchase acquisition 0.0 (5.4) 0.0
Net change in operating assets and liabilities, excluding effects of acquisitions:      
Accounts receivable, net (586.8) 146.4 (273.1)
Inventories (200.1) 71.4 (278.5)
Prepaid expenses and other current assets (106.8) (34.1) 49.7
Accounts payable 423.1 (34.6) 62.5
Accrued income taxes 3.1 7.7 77.6
Other accrued liabilities 257.0 (7.0) 168.7
Accrued pension and postretirement benefits (2.4) (0.3) (0.4)
Other long-term assets and liabilities (13.2) (7.5) (26.4)
Net cash provided by operating activities 2,814.7 2,528.7 2,174.6
Cash from investing activities:      
Capital expenditures (665.4) (372.8) (383.8)
Proceeds from disposals of property, plant and equipment 7.8 4.0 5.6
Purchases of investments (26.2) (305.7) (309.4)
Sales and maturities of investments 189.7 246.3 228.2
Acquisitions, net of cash acquired (2,156.4) (970.4) (288.2)
Other, net 1.9 4.9 16.5
Net cash used in investing activities (2,648.6) (1,393.7) (731.1)
Cash from financing activities:      
Proceeds from issuance of senior notes and other long-term debt 2,991.3 354.9 5.8
Repayments of senior notes and other long-term debt (364.4) (15.7) (10.3)
Proceeds from short-term borrowings 0.0 0.0 44.9
Repayments of short-term borrowings 0.0 0.0 (44.9)
(Repayments) borrowings under commercial paper programs, net 0.0 (632.6) (159.3)
Payment of costs related to debt financing (28.4) (2.3) (0.4)
Payment of deferred purchase price related to acquisitions 0.0 (1.5) 0.0
Purchase of treasury stock (689.3) (585.1) (730.5)
Proceeds from exercise of stock options 447.4 394.5 185.3
Distributions to and purchases of noncontrolling interests (33.0) (24.0) (9.9)
Dividend payments (595.1) (500.6) (477.4)
Other, net 1.4 0.0 0.0
Net cash provided by (used in) financing activities 1,729.9 (1,012.4) (1,196.7)
Effect of exchange rate changes on cash and cash equivalents (54.0) (20.7) (70.8)
Net increase (decrease) in cash and cash equivalents 1,842.0 101.9 176.0
Cash and cash equivalents balance, beginning of year 1,475.0 1,373.1 1,197.1
Cash and cash equivalents balance, end of year 3,317.0 1,475.0 1,373.1
Cash paid during the year for:      
Interest 179.5 129.2 123.7
Income taxes, net $ 650.0 $ 560.4 $ 477.7
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Summary of Significant Accounting Policies
12 Months Ended
Dec. 31, 2024
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, high-speed and 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, specialty cable, 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, coaxial and high-speed cable, as well as 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.

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. The Company’s results of operations for each of the three years ended December 31, 2024

may not necessarily be indicative of its future operating results. The accompanying Financial Statements and Notes herein reflect all adjustments, including normal recurring adjustments considered necessary for a fair presentation of the results, in conformity with U.S. GAAP.

Stock Split

On May 20, 2024, the Company announced that its Board of Directors (the “Board”) approved a two-for-one split of the Company’s Class A Common Stock (“Common Stock”). The stock split was effected in the form of a stock dividend paid to stockholders of record as of the close of business on May 31, 2024. The additional shares were distributed on June 11, 2024, and the Common Stock began trading on a split-adjusted basis on June 12, 2024. The shares of Common Stock retain a par value of $0.001 per share. As a result of the stock split, stockholders received one additional share of Common Stock for each share held as of the record date. There was no change in the number of authorized shares of common stock of the Company as a result of the stock split.

All current and prior year data impacted by the stock split and presented in the accompanying Consolidated Financial Statements and notes thereto, including, but not limited to, number of shares and per share information, stock-based compensation data, including stock options and restricted shares and related per share data, basic and diluted earnings per share, and dividends per share amounts, among others, have been adjusted to reflect the effect of the stock split and to conform to the current year presentation. The impact to the Consolidated Balance Sheets and Consolidated Statements of Changes in Equity herein was an increase of $0.6 to Common stock, with an offsetting decrease in Additional paid-in capital, which has been retroactively adjusted for all periods presented.

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 typically in non-U.S. bank accounts. However, as of December 31, 2024, more than half of the Company’s cash and cash equivalents on hand was located in the United States, primarily as a result of the proceeds from the issuance of the October Senior Notes, as discussed in more detail in Note 4 herein.

Short-term and Long-term Investments

Short-term investments primarily consist of certificates of deposit with original or remaining maturities of 12 months or less. Long-term investments primarily consist of certificates of deposit with original and remaining maturities of more than 12 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 2024, 2023 or 2022 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 1 and 10 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. The Company performs 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.

Annually, the Company performs its goodwill impairment assessment on its three reporting units. In the third quarter of 2024 and 2023, as part of our 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, 2024 and 2023, 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, 2024 and 2023.

The Company has not recognized any goodwill impairment in 2024, 2023 or 2022 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 2024, 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 2024, 2023 or 2022 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.

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, 2024, 2023 and 2022, 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, 2024 and 2023.

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, 2024 and 2023.

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, 2024 and 2023.

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, 2024, 2023 and 2022.

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, 2024 and 2023. Contract assets and contract liabilities recorded in the Consolidated Balance Sheets were not material as of December 31, 2024 and 2023.

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, 2024 and 2023, and the related amortization expense was not material for the years ended December 31, 2024, 2023 and 2022.

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, 2024, the Company has not provided for deferred income taxes on undistributed foreign earnings of approximately $1,550 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, in most cases, 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 $453.0, $342.2, and $323.6 for the years ended December 31, 2024, 2023 and 2022, 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) for 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 equity attributable to 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 would otherwise result in such noncontrolling interests being considered redeemable, as discussed below. Net income attributable to noncontrolling interests is classified below net income. 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. Net income attributable to redeemable noncontrolling interests is classified below net income. Earnings per share is determined after the impact of the redeemable noncontrolling interests’ share in net income of the Company. 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, 2024, 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, 2024 and 2023, 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, 2024 and 2023, there were no outstanding net investment hedge contracts, and, as such, the aggregate notional value of our outstanding net investment hedge contracts was nil. 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 net investment hedges were not material for the years ended December 31, 2024, 2023 and 2022.

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, 2024, 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 November 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“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. As part of this Annual Report, the Company adopted ASU 2023-07, which was applied retrospectively to all prior periods presented. Refer to Note 13 herein for further details regarding this adoption.

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 continues to evaluate ASU 2023-09 and its disclosure requirements, and will adopt this standard in our upcoming Annual Report on Form 10-K for the year ended December 31, 2025.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”). The intent of ASU 2024-03 is to improve financial statement disclosures regarding information about certain costs and expenses. Specifically, ASU 2024-03 requires the disaggregation of significant expenses within the income statement expense line items, including, but not limited to, purchases of inventory, employee compensation, depreciation, intangible asset amortization, and selling expenses, among others, as well as a qualitative description of the remaining amounts not separately disaggregated quantitatively. ASU 2024-03 is effective for annual fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The amendments under ASU 2024-03 should be applied on a prospective basis, although retrospective application is permitted. The Company is currently evaluating the potential impact of ASU 2024-03 on its consolidated financial statements and disclosures.

v3.25.0.1
Inventories
12 Months Ended
Dec. 31, 2024
Inventories  
Inventories

Note 2—Inventories

The components of Inventories are comprised of:

December 31, 

2024

    

2023

Raw materials and supplies

$

1,102.5

$

964.7

Work in process

 

703.5

 

562.3

Finished goods

 

739.7

 

640.1

$

2,545.7

$

2,167.1

v3.25.0.1
Property, Plant and Equipment, Net
12 Months Ended
Dec. 31, 2024
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, 

2024

    

2023

Land and improvements

$

47.7

$

33.9

Buildings and improvements

 

543.0

 

483.9

Machinery and equipment

 

3,042.8

 

2,628.4

Office equipment and other

 

542.6

 

430.3

 

4,176.1

 

3,576.5

Accumulated depreciation

 

(2,464.3)

 

(2,261.8)

$

1,711.8

$

1,314.7

Depreciation expense for the years ended December 31, 2024, 2023 and 2022 was $390.6, $313.7 and $306.1, respectively.

v3.25.0.1
Debt
12 Months Ended
Dec. 31, 2024
Debt  
Debt

Note 4—Debt

The Company’s debt consists of the following:

December 31, 2024

December 31, 2023

 

 

    

Carrying

    

Approximate

    

Carrying

    

Approximate

 

 

Maturity

Amount

Fair Value (1)

Amount

Fair Value (1)

Revolving Credit Facility

 

March 2029

    

$

$

$

$

U.S. Commercial Paper Program (less unamortized discount of nil at December 31, 2024 and 2023)

 

March 2029

    

Euro Commercial Paper Program

 

March 2029

    

Term Loan Credit Facility

 

April 2024

    

3.20% Senior Notes (less unamortized discount of nil at December 31, 2023)

 

April 2024

    

350.0

348.4

2.050% Senior Notes (less unamortized discount of nil and $0.2 at December 31, 2024 and 2023, respectively)

 

March 2025

    

400.0

398.0

399.8

386.8

4.750% Senior Notes (less unamortized discount of $0.5 and $0.9 at December 31, 2024 and 2023, respectively)

March 2026

349.5

350.0

349.1

350.6

0.750% Euro Senior Notes (less unamortized discount of $0.5 and $0.9 at December 31, 2024 and 2023, respectively)

 

May 2026

    

518.6

505.8

551.7

523.4

5.050% Senior Notes (plus unamortized premium of $2.2 at December 31, 2024)

April 2027

702.2

706.1

2.000% Euro Senior Notes (less unamortized discount of $1.1 and $1.3 at December 31, 2024 and 2023, respectively)

 

October 2028

    

518.2

505.9

551.4

531.4

5.050% Senior Notes (less unamortized discount of $0.4 at December 31, 2024)

April 2029

449.6

452.4

4.350% Senior Notes (less unamortized discount of $0.2 and $0.2 at December 31, 2024 and 2023, respectively)

 

June 2029

    

499.8

489.1

499.8

497.2

2.800% Senior Notes (less unamortized discount of $0.4 and $0.4 at December 31, 2024 and 2023, respectively)

 

February 2030

    

899.6

814.1

899.6

817.6

2.200% Senior Notes (less unamortized discount of $1.8 and $2.1 at December 31, 2024 and 2023, respectively)

 

September 2031

    

748.2

624.9

747.9

629.9

5.250% Senior Notes (less unamortized discount of $0.6 at December 31, 2024)

April 2034

599.4

601.0

5.000% Senior Notes (less unamortized discount of $3.7 at December 31, 2024)

January 2035

746.3

731.3

5.375% Senior Notes (less unamortized discount of $7.8 at December 31, 2024)

November 2054

492.2

476.1

Other debt

 

2025-2031

    

4.3

4.3

 

9.5

9.5

Less: unamortized deferred debt issuance costs

 

    

(41.8)

(21.5)

Total debt

 

    

6,886.1

6,659.0

 

4,337.3

 

4,094.8

Less: current portion

 

    

401.7

 

399.7

 

353.8

 

352.2

Total long-term debt

 

    

$

6,484.4

$

6,259.3

$

3,983.5

$

3,742.6

(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

On March 21, 2024, the Company entered into a third amended and restated credit agreement, which amended and restated its $2,500.0 unsecured revolving credit facility, increasing the lenders’ aggregate unsecured revolving commitments under the facility by $500.0 to $3,000.0 (the “Revolving Credit Facility”). The Revolving Credit Facility matures in March 2029 and gives the Company and certain of its subsidiaries 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 Revolving Credit Facility was undrawn on the date it was amended and restated. The Company may utilize the Revolving Credit Facility for general corporate purposes. As of December 31, 2024 and 2023, there were no outstanding borrowings under the revolving credit facility then in effect. 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”). The Term Loan matured on April 19, 2024 without the Company drawing upon it throughout its term.

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. On March 21, 2024, in conjunction with the increase in the capacity of the Revolving Credit Facility, the Company increased the borrowings available under its U.S. Commercial Paper Program by $500.0. As of December 31, 2024, the maximum aggregate principal amount outstanding of USCP Notes at any time is $3,000.0. 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 well as repaying certain outstanding senior notes. The Company borrowed under the U.S. Commercial Paper Program throughout much of 2024 and 2023, the proceeds of which were used for general corporate purposes, including, but not limited to, partially funding the acquisition of Carlisle Interconnect Technologies (“CIT”) in May 2024, as discussed further in Note 11 herein. Before the end of the fourth quarter of 2024 and 2023, the Company repaid all of its USCP Notes then outstanding. As of December 31, 2024 and 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, as was the case in the first quarter of 2023 when the Company used borrowings under its Euro Commercial Paper Program, along with cash on hand, to fund an acquisition. These borrowings were repaid in their entirety by the end of the first quarter of 2023. The Company did not borrow under the Euro Commercial Paper Program during 2024. As of December 31, 2024 and 2023, 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, 2024, the authorization from the Board limits the maximum aggregate 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 $3,000.0.  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 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 April 1, 2024, the Company used cash on hand to repay the $350.0 aggregate principal amount of unsecured 3.20% Senior Notes due April 1, 2024 upon maturity.

On April 5, 2024, the Company issued three series of unsecured senior notes (collectively, the “April Senior Notes”): (i) $450.0 aggregate principal amount of unsecured 5.050% Senior Notes due April 5, 2027 at 99.887% of face value (the “Original 2027 Senior Notes”), (ii) $450.0 aggregate principal amount of unsecured 5.050% Senior Notes due April 5, 2029 at 99.900% of face value (the “2029 Senior Notes”) and (iii) $600.0 aggregate principal amount of unsecured 5.250% Senior Notes due April 5, 2034 at 99.900% of face value (the “2034 Senior Notes”). The April Senior Notes are unsecured and rank equally in right of payment with all of the Company’s other senior unsecured and unsubordinated indebtedness, including the Company’s guarantee of the Euro Issuer’s obligations under the Euro Notes. Interest on the April Senior Notes is payable semiannually on April 5 and October 5 of each year, which commenced on October 5, 2024. Prior to March 5, 2027, the Company may redeem, from time to time, some or all of the Original 2027 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. Prior to March 5, 2029, the Company may redeem, from time to time, some or all of the 2029 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. Prior to January 5, 2034, the Company may redeem, from time to time, some or all of the 2034 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. On or after such dates, the Company may redeem, from time to time, some or all of the respective series of the April Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption. The Company used net proceeds from the April Senior Notes, together with a combination of cash on hand and borrowings under the U.S. Commercial Paper Program, to fund the cash consideration for the CIT acquisition in May 2024, along with the fees and expenses related thereto. During the year ended December 31, 2024, the Company incurred $11.7 of debt financing costs associated with the issuance of the April Senior Notes.

On October 31, 2024, the Company issued three series of unsecured senior notes (collectively, the “October Senior Notes”): (i) $250.0 aggregate principal amount of unsecured 5.050% Senior Notes due April 5, 2027 at 101.107% of face value (the “Additional 2027 Senior Notes”), which constituted a further issuance of the Company’s Original 2027 Senior Notes issued in April 2024, thus forming a single series with, and having the same terms (other than the issue date, issue price and the first interest payment date) as, the Original 2027 Senior Notes, and thus having a total aggregate principal amount of $700.0 of unsecured 5.050% Senior Notes due April 5, 2027 outstanding (the Original 2027 Senior Notes, together with the Additional 2027 Senior Notes collectively referred to as the “2027 Senior Notes”), (ii) $750.0 aggregate principal amount of unsecured 5.000% Senior Notes due January 15, 2035 at 99.502% of face value (the “2035 Senior Notes”) and (iii) $500.0 aggregate principal amount of unsecured 5.375% Senior Notes due November 15, 2054 at 98.429% of face value (the “2054 Senior Notes”). The October Senior Notes are unsecured and rank equally in right of payment with all of the Company’s other senior unsecured and unsubordinated indebtedness, including the Company’s guarantee of the Euro Issuer’s obligations under the Euro Notes. Consistent with the Original 2027 Senior Notes, interest on the Additional 2027 Senior Notes is payable semiannually on April 5 and October 5 of each year, commencing on April 5, 2025, commensurate with the timing of the remaining interest payments of the Original 2027 Senior Notes. Interest on the 2035 Senior Notes is payable semiannually on January 15 and July 15 of each year, commencing on January 15, 2025. Interest on the 2054 Senior Notes is payable semiannually on May 15 and November 15 of each year, commencing on May 15, 2025. Prior to March 5, 2027, the Company may redeem, from time to time, some or all of the 2027 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. Prior to October 15, 2034, the Company may redeem, from time to time, some or all of the 2035 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. Prior to May 15, 2054, the Company may redeem, from time to time, some or all of the 2054 Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption, plus a make-whole premium. On or after such dates, the Company may redeem, from time to time, some or all of the respective series of the October Senior Notes at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of redemption. On January 31, 2025, the Company used the

net proceeds from the October Senior Notes, together with borrowings under the U.S. Commercial Paper Program and cash on hand, to fund the cash consideration for the Company’s acquisition of CommScope’s Mobile Networks Business, along with the fees and expenses related thereto. During the year ended December 31, 2024, the Company incurred $13.7 of debt financing costs associated with the issuance of the October Senior Notes.

On March 30, 2023, the Company issued $350.0 aggregate 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 all of the Company’s other senior unsecured and unsubordinated indebtedness, including the Company’s guarantee of the Euro Issuer’s obligations under the Euro Notes. Interest on the 2026 Senior Notes is payable semiannually on March 30 and September 30 of each year.  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.

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 all of the Company’s other senior unsecured and unsubordinated indebtedness, including the Company’s guarantee of the Euro Issuer’s obligations under the Euro Notes. 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) aggregate principal amount of unsecured 0.750% Senior Notes due May 4, 2026, which were issued in May 2020 at 99.563% of face value (the “2026 Euro Notes” or the “0.750% Euro Senior Notes”). The net proceeds of the 2026 Euro Notes 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) aggregate principal amount of unsecured 2.000% Senior Notes due October 8, 2028, which were issued in October 2018 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 the 2028 Euro Notes 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 all of the Euro Issuer’s senior unsecured and unsubordinated indebtedness and are fully and unconditionally guaranteed on a senior unsecured basis by the Company. Interest on each series of 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, 2024) over each of the next five years ending December 31 and thereafter, is as follows:

2025

$

401.9

 

2026

 

869.4

2027

 

702.8

2028

 

518.5

2029

 

949.5

Thereafter

 

3,485.8

$

6,927.9

As of December 31, 2024, the Company had approximately $122.2 of uncommitted standby letter of credit facilities, of which $47.0 were issued.

v3.25.0.1
Fair Value Measurements
12 Months Ended
Dec. 31, 2024
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 believes that the 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 Company’s existing long-term investments have original maturities of approximately three years. Long-term investments are recorded in Other long-term assets in the accompanying Consolidated Balance Sheets. 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, 2024 and December 31, 2023 are as follows:

Fair Value Measurements

 

    

Quoted Prices in

    

Significant

    

Significant

 

Active Markets

Observable

Unobservable

 

for Identical

Inputs

Inputs

 

2024

Total

Assets (Level 1)

(Level 2)

(Level 3)

 

Short-term investments

$

18.4

$

$

18.4

$

Long-term investments

0.3

0.3

Forward contracts

(1.1)

(1.1)

Redeemable noncontrolling interests

(8.7)

(8.7)

Total

$

8.9

$

$

17.6

$

(8.7)

2023

 

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)

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, 2024 and 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, 2024 and 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. The fair value 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. In 2024, in accordance with the terms of the agreement, the noncontrolling option holders of one of our acquisitions exercised their put option, requiring the Company to acquire its entire redeemable noncontrolling interests then outstanding. 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, 2024 and 2023.  A rollforward of the Redeemable noncontrolling interests for the years ended December 31, 2024, 2023 and 2022 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.

v3.25.0.1
Income Taxes
12 Months Ended
Dec. 31, 2024
Income Taxes  
Income Taxes

Note 6—Income Taxes

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

Year Ended December 31, 

 

    

2024

    

2023

    

2022

 

Income before income taxes:

United States

$

462.0

$

521.9

$

442.3

Foreign

 

2,549.9

 

1,932.9

 

2,025.1

$

3,011.9

$

2,454.8

$

2,467.4

Current tax provision (benefit):

United States

$

19.0

$

55.1

$

97.7

Foreign

 

634.1

 

513.0

 

457.6

653.1

568.1

555.3

Deferred tax provision (benefit):

United States

(56.2)

(10.0)

(31.5)

Foreign

 

(26.6)

 

(48.8)

26.8

 

(82.8)

 

(58.8)

 

(4.7)

Total provision for income taxes

$

570.3

$

509.3

$

550.6

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 2024, the Company paid its seventh annual installment of the Transition Tax, net of applicable tax credits and deductions, and will pay the balance of the Transition Tax, net of applicable tax credits and deductions, in 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, 2024 and 2023. 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, 2024, the Company had $246.8 of foreign tax loss carryforwards, $151.9 of U.S. state tax loss carryforwards and $35.7 of U.S. federal tax loss carryforwards, of which $40.2, $151.9 and $1.6, respectively, will expire at various dates through 2044 and the balance can be carried forward indefinitely.  At December 31, 2024, the Company had $19.5 of U.S. state tax credit carryforwards and $16.4 of U.S. federal tax credit carryforwards, of which $12.1 and $16.4, respectively, will expire at various dates through 2044 and the balance can be carried forward indefinitely.

A valuation allowance of $73.6 and $46.6 at December 31, 2024 and 2023, respectively, has been recorded which relates primarily to the U.S. state and foreign net operating loss carryforwards and U.S. federal and state tax credit carryforwards. The valuation allowance for deferred tax assets increased by $27.0 in 2024, which was primarily driven by U.S. state and foreign net operating loss carryforwards and U.S. federal tax credit carryforwards. 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.

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

Year Ended December 31, 

 

2024

  

2023

  

2022

 

U.S. statutory federal tax rate

21.0

%

21.0

%

21.0

%

State and local taxes, net

0.6

0.6

0.6

Foreign earnings and dividends taxed at different rates

1.9

2.2

2.3

U.S. tax on foreign income

(0.1)

0.5

Excess tax benefits related to stock-based compensation

(4.7)

(3.4)

(2.3)

Other, net

0.2

0.3

0.2

Effective tax rate

18.9

%

20.7

%

22.3

%

For the years ended December 31, 2024, 2023 and 2022, stock option exercise activity had the impact of decreasing our Provision for income taxes by $142.6, $82.4 and $56.0, respectively, and decreasing our effective tax rate by the basis points in the table above. Total acquisition-related expenses, as discussed in further detail in Note 11 herein, had the aggregate impact of increasing our effective tax rate by approximately 30 basis points, 20 basis points and 10 basis points for the years ended December 31, 2024, 2023 and 2022, respectively. For the year ended December 31, 2024, a discrete tax benefit of $18.6, related to the settlement of tax audits and associated lapses of statutes of limitation, along with a difference in a non-U.S. tax filing position, had the effect of decreasing our effective tax rate by approximately 60 basis points, and, for the year ended December 31, 2023, the gain associated with the bargain purchase acquisition that closed in the second quarter of 2023, as discussed in Note 11 herein, had the effect of decreasing our effective tax rate by approximately 10 basis points.

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

December 31, 

   

2024

   

2023

Deferred tax assets relating to:

Accrued liabilities and reserves

$

115.7

$

78.0

Operating lease liabilities

86.2

70.7

Operating loss, interest, and tax credit carryforwards

 

114.8

 

76.9

Pensions

 

10.2

 

16.7

Inventories

 

112.0

 

86.0

Employee benefits

 

49.5

 

45.1

Total deferred tax assets

488.4

373.4

Valuation allowance

(73.6)

(46.6)

Total deferred tax assets, net of valuation allowances

414.8

326.8

Deferred tax liabilities relating to:

Goodwill

307.2

270.5

Depreciation and amortization

 

144.1

 

130.9

Operating lease right-of-use assets

86.2

70.7

Unremitted foreign earnings

125.3

 

123.2

Total deferred tax liabilities

662.8

595.3

Net deferred tax liability

$

248.0

$

268.5

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

Other long-term assets

$

128.7

$

98.5

Deferred income taxes

 

376.7

 

367.0

Net deferred tax liability, long-term

$

248.0

$

268.5

A tabular reconciliation of the gross amounts of unrecognized tax benefits excluding interest and penalties at the beginning and end of the year for 2024, 2023 and 2022 is shown below.

    

2024

    

2023

    

2022

 

Unrecognized tax benefits as of January 1

$

174.2

$

164.1

$

147.7

Gross increases for tax positions in prior periods

 

15.2

 

3.8

 

12.8

Gross increases for tax positions in current period

 

21.1

 

8.4

 

4.9

Settlements

 

(6.1)

 

(1.0)

 

(0.4)

Lapse of statutes of limitations

 

(27.6)

 

(1.1)

 

(0.9)

Unrecognized tax benefits as of December 31

$

176.8

$

174.2

$

164.1

The Company includes estimated interest and penalties related to unrecognized tax benefits in the provision for income taxes. During the years ended December 31, 2024, 2023 and 2022, the provision for income taxes included a net (benefit) expense of ($4.2), $5.8 and $0.8, respectively, in estimated interest and penalties. As of December 31, 2024, 2023 and 2022, the liability for unrecognized tax benefits included $37.7, $41.8 and $35.8, 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, 2024 and 2023, the amount of unrecognized tax benefits, including penalties and interest, which if recognized would impact the effective tax rate, was approximately $209.7 and $208.6, 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 $13.0.

Inflation Reduction Act of 2022

The Inflation Reduction Act of 2022 (the “IRA”), a tax and spending package that introduced 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, was enacted into law in 2022. Companies were required to reassess their valuation allowances for certain affected deferred tax assets in the period of enactment but did 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 years ended December 31, 2024 and 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.

v3.25.0.1
Equity
12 Months Ended
Dec. 31, 2024
Equity  
Equity

Note 7—Equity

Stock-Based Compensation:

For the years ended December 31, 2024, 2023 and 2022, the Company’s Income before income taxes was reduced by stock-based compensation expense of $109.5, $99.0 and $89.5, 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, 2024, 2023 and 2022, the Company recognized aggregate income tax benefits (associated with stock-based compensation) of $154.1, $92.4 and $64.8, respectively, in Provision for income taxes in the accompanying Consolidated Statements of Income. These aggregate income tax benefits during the years ended December 31, 2024, 2023 and 2022 include excess tax benefits of $142.6, $82.4 and $56.0, 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 120,000,000 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 80,000,000 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, 2024, there were 55,113,594 shares of 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 2022, 2023 and 2024 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, 2022

 

130,601,496

$

21.00

 

6.47

Options granted

 

14,181,596

 

34.47

Options exercised

 

(11,254,778)

 

16.44

Options forfeited

 

(1,258,240)

 

25.91

Options outstanding at December 31, 2022

 

132,270,074

 

22.78

6.03

Options granted

 

12,131,028

 

37.99

Options exercised

 

(22,506,662)

 

17.55

Options forfeited

 

(1,114,116)

 

29.16

Options outstanding at December 31, 2023

 

120,780,324

25.23

5.81

Options granted

 

8,075,819

 

65.67

Options exercised

 

(22,523,753)

 

19.83

Options forfeited

 

(628,199)

 

36.21

Options outstanding at December 31, 2024

 

105,704,191

$

29.40

5.53

$

4,233.2

Vested and non-vested options expected to vest at December 31, 2024

 

103,031,174

$

29.05

5.47

$

4,162.6

Exercisable options at December 31, 2024

 

70,156,937

$

23.65

4.45

$

3,213.5

A summary of the status of the Company’s non-vested options as of December 31, 2024 and changes during the year then ended was as follows:

    

    

Weighted Average

 

Fair Value

Options

at Grant Date

 

Non-vested options at January 1, 2024

 

45,047,962

$

7.28

Options granted

 

8,075,819

 

19.33

Options vested

 

(16,961,552)

 

5.88

Options forfeited

 

(614,975)

 

9.23

Non-vested options at December 31, 2024

 

35,547,254

$

10.66

The weighted average fair value at the grant date of options granted during 2023 and 2022 was $10.71 and $8.39, respectively.

During the years ended December 31, 2024, 2023 and 2022, the following activity occurred under the Company’s option plans:

2024

    

2023

    

2022

Total intrinsic value of stock options exercised

$

980.3

$

559.6

$

245.1

Total fair value of stock options vested

 

99.7

 

90.0

 

79.9

As of December 31, 2024, the total compensation cost related to non-vested options not yet recognized was approximately $287.3 with a weighted average expected amortization period of 3.39 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:

    

2024

2023

2022

Risk free interest rate

4.4

%  

3.8

%  

2.7

%  

Expected life

 

4.9

years

4.9

years

4.8

years

Expected volatility

 

28.0

%  

28.0

%  

25.9

%  

Expected dividend yield

 

1.0

%  

1.0

%  

1.0

%  

Restricted Stock

On May 16, 2024, the Company’s stockholders approved the 2024 Restricted Stock Plan for Directors of Amphenol Corporation (the “2024 Directors Restricted Stock Plan”), which is administered by the Compensation Committee of the Board and reserves 500,000 shares of the Company’s Common Stock for future issuance pursuant to the plan. As of December 31, 2024, the number of restricted shares available for grant under the 2024 Directors Restricted Stock Plan was 478,160. Restricted shares granted under the 2024 Directors Restricted Stock Plan vest 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. Grants under the 2024 Directors Restricted Stock Plan entitle the holder to receive shares of the Company’s Common Stock without payment. The 2024 Directors Restricted Stock Plan will expire on May 15, 2034, after which date no awards may be granted under the plan.

In 2012, the Company’s stockholders approved the 2012 Restricted Stock Plan for Directors of Amphenol Corporation (the “2012 Directors Restricted Stock Plan”), which was administered by the Nominating / Corporate Governance Committee of the Board. The 2012 Directors Restricted Stock Plan expired on May 22, 2022. 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, 42,624 shares of restricted stock previously granted to non-employee directors vested in accordance with their terms. 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 2022, 2023 and 2024 was as follows:

Weighted Average

Fair Value

Remaining

Restricted

at Grant

Amortization

    

Shares

    

Date

    

Term (in years)

 

Restricted shares outstanding at January 1, 2022

 

42,122

$

33.46

 

0.38

Restricted shares granted

 

42,624

 

33.80

Shares vested and issued

 

(42,122)

 

33.46

Restricted shares outstanding at December 31, 2022

 

42,624

 

33.80

    

0.37

Restricted shares granted

 

 

Shares vested and issued

 

(42,624)

 

33.80

Restricted shares outstanding at December 31, 2023

    

    

Restricted shares granted

 

21,840

 

65.96

Shares vested and issued

 

 

Restricted shares outstanding at December 31, 2024

    

21,840

    

$

65.96

    

0.36

The total fair value of restricted share awards that vested during 2024, 2023, and 2022 was nil, $1.4 and $1.4, respectively. As of December 31, 2024, the total compensation cost related to non-vested restricted shares not yet recognized was approximately $0.5 (with a weighted average expected amortization period of 0.36 years).

Phantom Stock

On June 5, 2023, the Company granted 4,750 shares of phantom stock to each then-current non-employee director (38,000 shares in the aggregate), all of which converted into unrestricted shares of the Company’s Common Stock on May 15, 2024. The total compensation cost associated with these vested shares of phantom stock was $1.5. As of December 31, 2024, no additional shares of phantom stock are outstanding, and the Company does not expect to grant any additional shares of phantom stock.

Stock Repurchase Programs:

On April 23, 2024, the Board authorized a new stock repurchase program under which the Company may purchase up to $2,000.0 of its Common Stock during the three-year period ending on the close of business on April 28, 2027 (the “2024 Stock Repurchase Program”). The 2024 Stock Repurchase Program became effective on April 29, 2024. During the year ended December 31, 2024, the Company repurchased 7.0 million shares of its Common Stock for $463.7 under the 2024 Stock Repurchase Program. Of the total repurchases made in 2024 under the 2024 Stock Repurchase Program, 4.2 million shares, or $287.5, have been retired by the Company, with the remainder of the repurchased shares retained in Treasury stock at the time of repurchase. From January 1, 2025 to January 31, 2025, the Company repurchased 0.7 million additional shares of its Common Stock for $50.7, and, as of February 1, 2025, the Company has remaining authorization to purchase up to $1,485.6 of its Common Stock under the 2024 Stock Repurchase Program. The timing and amount of any future repurchases 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 27, 2021, the Board authorized a stock repurchase program under which the Company could purchase up to $2,000.0 of its Common Stock during the three-year period ending April 27, 2024 (the “2021 Stock Repurchase Program”). During the year ended December 31, 2024, the Company repurchased 4.1 million shares of its Common Stock for $225.6 under the 2021 Stock Repurchase Program. All of the repurchased shares under the 2021 Stock Repurchase Program during 2024 have been retired by the Company. As a result of these repurchases, the Company completed all repurchases authorized under the 2021 Stock Repurchase Program, and, therefore, the 2021 Stock Repurchase Program has terminated. During the year ended December 31, 2023, the Company repurchased 14.4 million shares of its Common Stock for $585.1, of which 10.9 million shares, or $435.8, were retired by the Company, with the remainder of the repurchased shares retained in Treasury stock at the time of repurchase. During the year ended December 31, 2022, the Company repurchased 19.8 million shares of its Common Stock for $730.5, of which 18.7 million shares, or $689.7, were retired by the Company, with the remainder of the repurchased shares 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 24, 2023, the Board approved an increase to the Company’s quarterly dividend rate from $0.105 per share to $0.11 per share, effective with dividends declared in the fourth quarter of 2023, and on July 23, 2024, the Board approved an additional increase to the Company’s quarterly dividend rate from $0.11 per share to $0.165 per share, effective with dividends declared in the third quarter of 2024, contingent upon declaration by the Board. The following table summarizes the declared quarterly dividends per share during each of the three years ended December 31, 2024, 2023 and 2022:

 

2024

2023

2022

First Quarter

$

0.11

$

0.105

$

0.10

Second Quarter

0.11

0.105

0.10

Third Quarter

0.165

0.105

0.10

Fourth Quarter

0.165

0.11

0.105

Total

$

0.55

$

0.425

$

0.405

Dividends declared and paid for the years ended December 31, 2024, 2023 and 2022 were as follows:

    

2024

2023

2022

Dividends declared

$

662.9

$

507.4

$

482.6

Dividends paid (including those declared in the prior year)

 

595.1

 

500.6

 

477.4

Accumulated Other Comprehensive Income (Loss):

Balances of related after-tax components comprising Accumulated other comprehensive income (loss) included in equity at December 31, 2024, 2023 and 2022 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, 2022

$

(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)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($5.2), respectively

(199.3)

13.1

(186.2)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($1.1)

3.5

3.5

Balance at December 31, 2024

$

(612.0)

$

$

(104.3)

$

(716.3)

For the years ended December 31, 2024, 2023 and 2022, 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 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, 2024 and 2023, any amounts included in Accumulated other comprehensive income (loss) associated with cash flow hedges are generally expected to be reclassified into earnings within the following 12 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.

v3.25.0.1
Earnings Per Share
12 Months Ended
Dec. 31, 2024
Earnings Per Share  
Earnings Per Share

Note 8—Earnings Per Share

The following is 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, 2024, 2023 and 2022:

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

   

2024

   

2023

   

2022

Net income attributable to Amphenol Corporation stockholders

$

2,424.0

$

1,928.0

$

1,902.3

Weighted average common shares outstanding — Basic

 

1,203.8

 

1,193.0

 

1,192.3

Effect of dilutive stock options

 

59.8

 

48.2

 

49.7

Weighted average common shares outstanding — Diluted

 

1,263.6

 

1,241.2

 

1,242.0

Net income attributable to Amphenol Corporation per common share — Basic

$

2.01

$

1.62

$

1.60

Net income attributable to Amphenol Corporation per common share — Diluted

$

1.92

$

1.55

$

1.53

Excluded from the computations above were anti-dilutive common shares (primarily related to outstanding stock options) of 4.8 million, 14.4 million and 18.0 million for the years ended December 31, 2024, 2023 and 2022, respectively.

v3.25.0.1
Benefit Plans and Other Postretirement Benefits
12 Months Ended
Dec. 31, 2024
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. Pension 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. Pension 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. Pension Plans and are instead covered by various defined contribution plans. The Company also has an unfunded Supplemental Employee Retirement Plan (“SERP”, and together with the U.S. Pension Plans, “U.S. Plans”), 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 $72.2 and $81.7 at December 31, 2024 and 2023, respectively. Total required contributions to be made during 2025 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

2024

2023

2024

2023

2024

2023

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.5

$

388.2

$

173.3

$

175.6

$

561.8

$

563.8

Service cost

 

2.2

 

2.5

 

1.5

 

1.3

 

3.7

 

3.8

Interest cost

 

17.8

 

18.6

 

6.3

 

6.8

 

24.1

 

25.4

Plan amendments

 

0.2

 

 

 

 

0.2

 

Actuarial loss (gain)

 

(20.8)

 

8.8

 

(11.3)

 

5.7

 

(32.1)

 

14.5

Foreign exchange translation and other

 

 

 

(8.8)

 

(9.5)

 

(8.8)

 

(9.5)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Projected benefit obligation at end of year

 

341.4

 

388.5

 

154.0

 

173.3

 

495.4

 

561.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Actual return on plan assets

 

8.9

 

37.1

 

6.8

 

7.7

 

15.7

 

44.8

Employer contributions

 

1.1

 

1.1

 

3.8

 

4.3

 

4.9

 

5.4

Foreign exchange translation and other

 

 

 

(4.2)

 

(3.0)

 

(4.2)

 

(3.0)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Fair value of plan assets at end of year

 

359.1

 

395.6

 

85.4

 

86.0

 

444.5

 

481.6

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

31.2

$

21.2

$

3.6

$

0.7

$

34.8

$

21.9

Other accrued expenses

1.2

1.2

2.7

2.9

3.9

4.1

Accrued pension and postretirement benefit obligations

12.3

12.9

69.5

85.1

81.8

98.0

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Accumulated other comprehensive loss, net

$

(96.8)

$

(104.0)

$

(9.6)

$

(18.9)

$

(106.4)

$

(122.9)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

5.53

%

4.97

%

4.13

%

3.72

%

Rate of compensation increase

 

2.40

%

2.40

%

1.91

%

1.89

%

The projected benefit obligation decreased in 2024, primarily due to benefits paid and actuarial gains resulting from the impact of higher discount rates on our projected benefit obligation, partially offset by interest cost. 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 accumulated benefit obligation for the Company’s defined benefit pension plans was $492.5 and $557.0 at December 31, 2024 and 2023, respectively. As of December 31, 2024 and 2023, the accumulated benefit obligation for the U.S. Plans was $341.3 and $388.2, respectively, and for the Foreign Plans was $151.2 and $168.8, respectively.

The following summarizes information for defined benefit plans with an accumulated benefit obligation in excess of plan assets as of December 31, 2024 and 2023:

U.S. Plans

Foreign Plans

2024

  

2023

  

2024

2023

Accumulated benefit obligation

$

22.1

$

23.1

$

88.3

$

142.3

Fair value of plan assets

8.6

9.1

17.7

57.0

The following summarizes information for defined benefit plans with a projected benefit obligation in excess of plan assets as of December 31, 2024 and 2023:

U.S. Plans

Foreign Plans

2024

  

2023

  

2024

2023

Projected benefit obligation

$

22.1

$

23.2

$

90.0

$

169.3

Fair value of plan assets

8.6

9.1

17.7

81.2

The amounts, before tax, included in Accumulated other comprehensive loss at December 31, 2024 and 2023 that have not yet been recognized as expense were as follows:

    

U.S. Plans

Foreign Plans

Total

2024

2023

2024

2023

2024

2023

Actuarial losses, net

$

122.7

   

$

131.0

     

$

1.4

   

$

15.7

     

$

124.1

   

$

146.7

Prior service cost

3.7

4.8

0.4

0.5

4.1

5.3

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, 2024, 2023 and 2022:

U.S. Plans

Foreign Plans

Total

  

2024

  

2023

  

2022

2024

  

2023

  

2022

2024

  

2023

  

2022

Components of net pension expense:

Service cost

$

2.2

$

2.5

$

3.5

$

1.5

$

1.3

$

2.5

$

3.7

$

3.8

$

6.0

Interest cost

 

17.8

 

18.6

 

10.6

 

6.3

 

6.8

 

3.4

 

24.1

 

25.4

 

14.0

Expected return on plan assets

 

(24.1)

 

(24.6)

 

(26.5)

 

(4.6)

 

(4.5)

 

(3.4)

 

(28.7)

 

(29.1)

 

(29.9)

Amortization of prior service cost

1.3

1.7

1.4

0.1

1.3

1.8

1.4

Amortization of actuarial losses

 

2.7

 

1.6

 

11.9

 

0.5

 

0.7

 

4.2

 

3.2

 

2.3

 

16.1

Net pension (income) expense

$

(0.1)

$

(0.2)

$

0.9

$

3.7

$

4.4

$

6.7

$

3.6

$

4.2

$

7.6

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

4.97

%

5.18

%

2.69

%

3.72

%

4.20

%

1.58

%

Expected long-term return on assets

 

5.50

%

5.50

%

5.50

%

5.45

%

5.45

%

3.35

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.89

%

1.93

%

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 5.53% and 4.97% at December 31, 2024 and 2023, respectively. The increase in the discount rate for the U.S. Plans resulted in a decrease in the benefit obligation of approximately $17 at December 31, 2024. The weighted average discount rate for the Foreign Plans was 4.13% and 3.72% at December 31, 2024 and 2023, respectively. The increase in the discount rate for the Foreign Plans did not have a material effect on the benefit obligation at December 31, 2024. 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. The target asset allocations for the U.S. Plans were 15% equities and 85% fixed income as of December 31, 2024 and 2023, and the Company expects to maintain these target asset allocations for the U.S. Plans for 2025. 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, 2024, 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 2024, the expected long-term rate of return on the U.S. Plans’ assets was based on an asset allocation assumption of approximately 15% with equity managers (with an expected long-term rate of return of approximately 6.0%) and 85% with fixed income managers (with an expected long-term rate of return of approximately 5.4%).

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, 2024 and 2023 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 (1)

December 31, 2024

Equity securities:

U.S. equities — large cap

$

26.8

$

$

26.8

$

$

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

 

7.2

 

 

7.2

 

 

International equities — growth

 

10.3

 

10.3

 

 

 

International equities — other

 

40.9

 

 

40.9

 

 

Alternative investment funds

1.1

1.1

Fixed income securities:

U.S. fixed income securities — intermediate term

 

131.1

 

 

131.1

 

 

U.S. fixed income securities — long-term

170.6

 

 

170.6

 

 

International fixed income securities — other

 

36.0

 

36.0

 

 

Insurance contracts

 

17.8

 

 

 

17.8

 

Cash and cash equivalents

 

2.7

 

2.7

 

 

 

Total

$

444.5

$

13.0

$

412.6

$

17.8

$

1.1

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

(1) 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, 2024 and 2023 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, 2024 and 2023:

2024

2023

Balance on January 1

$

19.5

$

24.3

Unrealized gains (losses), net

0.6

1.6

Purchases, sales and settlements, net

(1.1)

(7.2)

Foreign currency translation

(1.2)

0.8

Balance on December 31

$

17.8

$

19.5

The Company made cash contributions to the Plans of $4.9, $5.4, and $6.3 in 2024, 2023, and 2022, 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

 

2025

    

$

33.3

 

$

7.3

 

$

40.6

 

2026

 

28.4

 

7.4

 

35.8

2027

 

28.4

 

7.8

 

36.2

2028

 

28.3

 

8.1

 

36.4

2029

 

28.0

 

8.4

 

36.4

2030-2034

 

132.5

 

45.0

 

177.5

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 $30.0 and $30.9 as of December 31, 2024 and 2023, 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, 2024 and 2023, the total liability associated with postretirement benefit obligations was approximately $3.5 and $3.9, 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, 2024 and 2023 was 5.58% and 5.00%, respectively. Net postretirement benefit expense on the accompanying Consolidated Statements of Income was not material for each of the years ended December 31, 2024, 2023 and 2022. 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

up to a maximum of 7% of eligible compensation. The Company provided matching contributions to the U.S. defined contribution plans of approximately $24.7, $24.0 and $18.0 in 2024, 2023 and 2022, respectively.

v3.25.0.1
Leases
12 Months Ended
Dec. 31, 2024
Leases  
Leases

Note 10—Leases

Operating Leases

For the years ended December 31, 2024, 2023 and 2022, total operating lease cost was $156.2, $127.1, and $121.4, 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, 2024:

Year Ending December 31,

2025

$

121.1

2026

90.2

2027

65.4

2028

47.7

2029

31.4

Thereafter

93.1

Total future minimum lease payments

$

448.9

Less imputed interest

(54.8)

Total present value of future minimum lease payments

$

394.1

The following summarizes the operating lease-related account balances on our Consolidated Balance Sheets, as of December 31, 2024 and 2023:

    

2024

    

2023

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

$

384.4

$

301.5

Other accrued expenses

$

108.5

$

91.6

Other long-term liabilities

285.6

212.1

Total operating lease liabilities

$

394.1

$

303.7

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

Year Ended December 31:

2024

2023

2022

Supplemental Cash Flow Information:

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

Operating cash flows from operating leases

$

141.0

$

114.3

$

109.3

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

$

227.6

$

115.2

$

164.5

As of December 31:

Weighted Average Remaining Lease Term

6 years

5 years

5 years

Weighted Average Discount Rate

4.3

%

3.6

%

2.7

%

Lease contracts that we have executed but which have not yet commenced as of December 31, 2024 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, 2024, 2023 and 2022.

v3.25.0.1
Acquisitions
12 Months Ended
Dec. 31, 2024
Acquisitions  
Acquisitions

Note 11—Acquisitions

2024 Acquisitions

During the year ended December 31, 2024, the Company completed two acquisitions (the “2024 Acquisitions”), including the acquisition of Carlisle Interconnect Technologies (“CIT”), for approximately $2,156.4, net of cash acquired. Both acquisitions have been included in the Harsh Environment Solutions segment. The 2024 Acquisitions were each funded using cash on hand, proceeds from the April Senior Notes or borrowings under the U.S. Commercial Paper Program, or a combination thereof. The Company is in the process of analyzing and completing the allocation of the fair value of assets acquired and liabilities assumed for the 2024 Acquisitions. Since the current purchase price allocations for the 2024 Acquisitions are based on preliminary assessments made by management as of December 31, 2024, the acquisition accounting is subject to final adjustments, and it is possible that the final assessments of values may differ from the Company’s preliminary assessments. The operating results of the 2024 Acquisitions have been 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 allocations related to these acquisitions, have not been presented, since the 2024 Acquisitions are not material, either individually or in the aggregate, to the Company’s financial results.

Acquisition of Carlisle Interconnect Technologies (“CIT”)

On May 21, 2024, pursuant to a definitive stock purchase agreement by and between the Company and Carlisle Companies Incorporated dated January 30, 2024, the Company completed the acquisition of CIT for approximately $1,995.3, net of cash acquired and subject to customary post-closing adjustments. The Company funded the CIT acquisition through a combination of net proceeds from the April Senior Notes, as discussed in Note 4 herein, together with borrowings under the U.S. Commercial Paper Program and cash on hand. 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.

As of December 31, 2024, the CIT acquisition resulted in the recognition of $1,113.7 of goodwill and $543.0 of definite-lived intangible assets, with the remainder of the purchase price being allocated to other identifiable assets acquired and liabilities assumed. Of the acquired definite-lived intangible assets, approximately $488.0 and $55.0 were assigned to customer relationships and acquired backlog, respectively. The acquired customer relationships and acquired backlog have a weighted average useful life of approximately 15 years and 0.4 years, respectively. These definite-lived intangible assets are being amortized based upon the underlying pattern of economic benefit as reflected by the future net cash inflows. 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 the assembled workforce along with other intangible assets acquired that do not qualify for separate recognition. The Company expects that none of the goodwill recognized from the CIT acquisition will be deductible for tax purposes.

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 were included in the Harsh Environment Solutions segment, three acquisitions were included in the Interconnect and Sensor Systems segment, and two acquisitions were 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 was recorded separately in the Company’s Consolidated Statements of Income.

As of December 31, 2024, the 2023 Acquisitions resulted in the recognition of $667.4 of goodwill and $153.2 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 12 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 assets acquired (net of liabilities and noncontrolling interests assumed) 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 $151 of the goodwill recognized from the 2023 Acquisitions will be deductible for tax purposes.

In 2024, the Company completed the acquisition accounting, including the analyses of the fair value of assets acquired and liabilities assumed, for all of the 2023 Acquisitions, and each of the final assessments of values did not differ materially from their previous preliminary assessments. The operating results of the 2023 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 allocations related to these acquisitions, were not presented, since the 2023 Acquisitions were 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, associated with 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 allocations related to these acquisitions, were not presented, since the 2022 Acquisitions were not material, either individually or in the aggregate, to the Company’s financial results.

Acquisition-related Expenses

In 2024, the Company incurred $145.6 ($119.3 after-tax) of acquisition-related expenses, comprised primarily of (i) external transaction costs associated with acquisitions and the amortization of $55.0 related to the value associated with acquired backlog resulting from the CIT acquisition (such acquisition-related expenses aggregating $127.4 are presented separately in the accompanying Consolidated Statements of Income) and (ii) the amortization of acquisition-related inventory step-up costs of $18.2 associated with the CIT acquisition (such costs are recorded in Cost of sales in the accompanying Consolidated Statements of Income). 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. Such acquisition-related expenses incurred in 2023 and 2022 were presented separately in the accompanying Consolidated Statements of Income.

v3.25.0.1
Goodwill and Other Intangible Assets
12 Months Ended
Dec. 31, 2024
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, 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

Acquisition-related

 

1,192.3

 

(4.5)

 

58.9

 

1,246.7

Foreign currency translation

 

(21.6)

 

(21.5)

 

(59.8)

 

(102.9)

Goodwill at December 31, 2024

$

3,180.0

$

2,951.5

$

2,104.7

$

8,236.2

The increase in goodwill during 2024 was primarily driven by goodwill recognized from the 2024 Acquisitions, in particular, the CIT acquisition, partially offset by foreign currency translation. The increase in goodwill during 2023 was primarily driven by goodwill recognized from the 2023 Acquisitions.

Other than goodwill noted above, the Company’s intangible assets as of December 31, 2024 and 2023 were as follows:

December 31, 2024

December 31, 2023

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

12

$

1,296.4

$

519.8

$

776.6

$

782.6

$

450.6

$

332.0

Proprietary technology

13

 

350.3

 

170.9

179.4

 

365.1

 

146.1

219.0

Backlog and other

1

 

154.1

 

154.1

 

114.1

 

99.4

14.7

Total intangible assets (definite-lived)

11

1,800.8

844.8

956.0

1,261.8

696.1

565.7

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

Total

$

2,069.9

$

844.8

$

1,225.1

$

1,530.9

$

696.1

$

834.8

The increase in the gross carrying amount of intangible assets in 2024 was primarily driven by certain customer relationships and acquired backlog recognized as a result of the acquisition accounting associated with the 2024 Acquisitions, in particular, the CIT acquisition, partially offset by measurement period adjustments related to certain intangible assets associated with certain of the 2023 Acquisitions that closed late in 2023. Amortization expense for the years ended December 31, 2024, 2023 and 2022 was approximately $154.7, $86.0 and $81.0, respectively, which included the amortization of acquired backlog of $55.0, $12.4, and $12.0, respectively, resulting from acquisitions in each respective year. The amortization of acquired backlog in 2024 resulted from the CIT acquisition. As of December 31, 2024, amortization expense relating to the Company’s current intangible assets estimated for each of the next five fiscal years is approximately $104.0 in 2025, $102.4 in 2026, $95.7 in 2027, $88.4 in 2028, and $77.7 in 2029.

v3.25.0.1
Reportable Business Segments and International Operations
12 Months Ended
Dec. 31, 2024
Reportable Business Segments and International Operations  
Reportable Business Segments and International Operations

Note 13—Reportable Business Segments and International Operations

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 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, specialty cable, 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, coaxial and high-speed cable, as well as 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’s CODM assesses each segment’s performance and allocates resources to each of them based on a single measure of profit and loss, which is operating income as adjusted for certain corporate and other related items and before interest, stock-based compensation expense, income taxes, amortization related to certain intangible assets and other non-cash purchase accounting costs, and nonrecurring gains and losses, as outlined in the table below (we refer to this measure as segment operating income). Intersegment net sales and operating expenses have been eliminated in the computation of consolidated net sales and operating income.

The CODM considers budget-to-actual variances in net sales and segment operating income on a quarterly basis and uses that information when making decisions about the allocation of operating and capital resources to each segment. Other than segment operating expenses (which is easily computable from the difference between net sales and segment operating income), our CODM is not regularly provided disaggregated segment level expense information as such information is not used in our CODM’s decision-making related to the allocation of operating and capital resources to our segments. 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.

The following tables (i) summarize, by segment, total sales, intersegment sales and external net sales and (ii) reconcile each segment’s external net sales to their respective segment operating income, including segment operating expenses, for each of the years ended December 31, 2024, 2023 and 2022:

Harsh Environment Solutions

Communications Solutions

Interconnect and Sensor Systems

Total

2024

Total sales

$

4,508.6

$

6,375.6

$

4,510.6

$

15,394.8

Less: Intersegment sales

91.2

51.8

29.1

172.1

External net sales

4,417.4

6,323.8

4,481.5

15,222.7

Less: Segment operating expenses (1)

3,324.2

4,754.2

3,655.6

11,734.0

Segment operating income

$

1,093.2

$

1,569.6

$

825.9

$

3,488.7

2023

Total sales

$

3,621.6

$

4,963.0

$

4,129.3

$

12,713.9

Less: Intersegment sales

90.8

50.2

18.2

159.2

External net sales

3,530.8

4,912.8

4,111.1

12,554.7

Less: Segment operating expenses (1)

2,586.9

3,849.3

3,357.4

9,793.6

Segment operating income

$

943.9

$

1,063.5

$

753.7

$

2,761.1

2022

Total sales

$

3,185.3

$

5,731.8

$

3,880.6

$

12,797.7

Less: Intersegment sales

78.1

79.4

17.2

174.7

External net sales

3,107.2

5,652.4

3,863.4

12,623.0

Less: Segment operating expenses (1)

2,305.6

4,406.7

3,146.9

9,859.2

Segment operating income

$

801.6

$

1,245.7

$

716.5

$

2,763.8

(1)

The aggregated amount is comprised of cost of sales, selling, general and administrative expenses, and other segment related expenses.

Segment operating income and the reconciliation of segment operating income to consolidated income before income taxes for the years ended December 31, 2024, 2023 and 2022 are as follows:

2024

2023

2022

Total segment operating income

$

3,488.7

$

2,761.1

$

2,763.8

Corporate / Other:

Stock-based compensation expense

(109.5)

(99.0)

(89.5)

Amortization of acquisition-related inventory step-up costs

(18.2)

Acquisition-related expenses

(127.4)

(34.6)

(21.5)

Other operating expenses

(76.7)

(67.9)

(67.0)

Operating income

3,156.9

2,559.6

2,585.8

Interest expense

(217.0)

(139.5)

(128.4)

Gain on bargain purchase acquisition

5.4

Other income (expense), net

72.0

29.3

10.0

Income before income taxes

$

3,011.9

$

2,454.8

$

2,467.4

Depreciation and amortization expense by segment for the years ended December 31, 2024, 2023 and 2022 is as follows:

2024

2023

2022

Harsh Environment Solutions

 

$

126.7

$

91.0

$

78.2

Communications Solutions

226.5

177.0

183.7

Interconnect and Sensor Systems

136.6

131.1

124.5

Corporate / Other (1)

82.7

7.3

6.5

Total

$

572.5

$

406.4

$

392.9

(1)

Amortization of acquired backlog associated with acquisitions for the year ended December 31, 2024 is reported under “Corporate / Other”.

For the year ended December 31, 2024, depreciation and amortization expense in Corporate / Other includes (i) $55.0 related to the amortization of acquired backlog resulting from the CIT acquisition, which is included in Acquisition-related expenses in the Consolidated Statements of Income, and (ii) $18.2 of amortization of acquisition-related inventory step-up costs associated with the CIT acquisition, which is included in Cost of sales in the Consolidated Statements of Income, as discussed in Note 11 herein. These expenses are reported in Corporate / Other, since they are not components in the determination of segment operating income.

Net sales by geographic area for the years ended December 31, 2024, 2023 and 2022 and long-lived assets by geographic area as of December 31 were as follows:

    

2024

    

2023

    

2022

Net sales

United States

$

5,272.3

$

4,405.4

$

4,155.2

China

 

3,399.9

 

2,884.0

 

3,265.0

Other foreign locations

 

6,550.5

 

5,265.3

 

5,202.8

Total

$

15,222.7

$

12,554.7

$

12,623.0

Long-lived assets(1)

United States

$

576.4

$

442.6

$

386.1

China

 

617.9

 

455.5

 

470.1

Other foreign locations

 

901.9

 

718.1

 

637.6

Total

$

2,096.2

$

1,616.2

$

1,493.8

(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, 2024, 2023 and 2022:

Net sales by sales channel:

2024

2023

2022

End customers and contract manufacturers:

Harsh Environment Solutions

$

3,172.6

$

2,581.6

$

2,176.4

Communications Solutions

4,960.9

3,933.2

4,469.0

Interconnect and Sensor Systems

 

4,311.0

 

3,947.4

 

3,724.6

12,444.5

10,462.2

10,370.0

Distributors and resellers:

Harsh Environment Solutions

1,244.8

949.2

930.8

Communications Solutions

1,362.9

979.6

1,183.4

Interconnect and Sensor Systems

170.5

163.7

138.8

2,778.2

2,092.5

2,253.0

Total Net sales

$

15,222.7

$

12,554.7

$

12,623.0

Net sales by geography:

2024

2023

2022

United States:

Harsh Environment Solutions

$

2,384.7

$

1,790.5

$

1,558.2

Communications Solutions

1,582.3

1,395.8

1,495.3

Interconnect and Sensor Systems

 

1,305.3

 

1,219.1

 

1,101.7

5,272.3

4,405.4

4,155.2

China:

Harsh Environment Solutions

402.3

351.2

437.5

Communications Solutions

2,011.6

1,669.4

1,939.6

Interconnect and Sensor Systems

986.0

863.4

887.9

3,399.9

2,884.0

3,265.0

Other foreign locations:

Harsh Environment Solutions

1,630.4

1,389.1

1,111.5

Communications Solutions

2,729.9

1,847.6

2,217.5

Interconnect and Sensor Systems

2,190.2

2,028.6

1,873.8

6,550.5

5,265.3

5,202.8

Total Net sales

$

15,222.7

$

12,554.7

$

12,623.0

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, 2024, 2023 and 2022. As the Company is not organized by product or group of products, 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.

v3.25.0.1
Commitments and Contingencies
12 Months Ended
Dec. 31, 2024
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, 2024, the Company had purchase commitments of $1,321.8 in 2025, $63.7 in 2026 and 2027, combined, and $5.6 beyond 2027.

v3.25.0.1
Subsequent Events
12 Months Ended
Dec. 31, 2024
Subsequent Events  
Subsequent Events

Note 15—Subsequent Events

Acquisitions of CommScope’s Mobile Networks Business and LifeSync Corporation

On January 31, 2025, pursuant to a purchase agreement (the “CommScope Purchase Agreement”) with CommScope Holding Company, Inc. (“CommScope”) dated July 18, 2024, the Company completed the acquisition of CommScope’s mobile networks-related businesses, specifically the Outdoor Wireless Networks segment and the Distributed Antenna Systems business (collectively, the “Mobile Networks Business”) for an aggregate purchase price of approximately $2,100 in cash, subject to customary post-closing adjustments. The Company funded the acquisition of the Mobile Networks Business through a combination of net proceeds from the October Senior Notes, as discussed in Note 4 herein, together with borrowings under the U.S. Commercial Paper Program and cash on hand. The Mobile Networks Business provides mobile networks solutions, with advanced technologies in the areas of base station antennas and related interconnect solutions, as well as distributed antenna systems. The Mobile Networks Business’s wide range of products add advanced antenna and associated interconnect products, technologies and capabilities, which management believes are highly complementary to Amphenol’s existing product portfolio for next-generation wireless networks. The Mobile Networks Business will be included in the Communications Solutions segment. Also, on January 31, 2025, the Company completed the acquisition of LifeSync Corporation (“LifeSync”), a high-technology provider of interconnect products for medical applications, which will be included in the Harsh Environment Solutions segment. The operating results for these acquisitions will be included in the Consolidated Statements of Income from their respective dates of acquisition. The Company is in the process of commencing the analysis of the purchase price allocation of the fair value of assets acquired and liabilities assumed as part of the acquisition accounting associated with these acquisitions.

v3.25.0.1
SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS
12 Months Ended
Dec. 31, 2024
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, 2024, 2023 and 2022

(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, 2024

$

68.4

$

2.6

$

(4.5)

$

66.5

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

Valuation allowance on deferred tax assets:

Year ended December 31, 2024

$

46.6

$

10.8

$

16.2

$

73.6

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

v3.25.0.1
Pay vs Performance Disclosure - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pay vs Performance Disclosure      
Net Income (Loss) $ 2,424.0 $ 1,928.0 $ 1,902.3
v3.25.0.1
Insider Trading Arrangements
3 Months Ended
Dec. 31, 2024
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
v3.25.0.1
Insider Trading Policies and Procedures
12 Months Ended
Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]  
Insider Trading Policies and Procedures Adopted true
v3.25.0.1
Cybersecurity Risk Management and Strategy Disclosure
12 Months Ended
Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]  
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]

Cybersecurity Risk Management and Strategy

We have developed and implemented an information security and cybersecurity risk management program (“Program”) intended to protect and preserve the confidentiality, integrity and availability of our data and information technology systems. Our Program takes a risk-based approach and is integrated into our overall enterprise risk management program. We use the National Institute of Standards and Technology Cybersecurity Framework (the “NIST CSF”) as a benchmark to ensure that our Program is maintained in line with industry best practices. This does not imply that we meet any particular technical standards, specifications or requirements, but it does mean that we use the NIST CSF as a guide to help us identify, assess and manage cybersecurity risks relevant to our business.

The Company maintains a decentralized information technology infrastructure, where each of our business units utilizes a separate and distinct information technology system. This means that if any business unit’s systems are compromised, there is less risk that another business unit will be impacted by that event. This decentralized structure also allows our information security professionals embedded within an individual business unit to make quick, efficient decisions when changes or actions are needed and provides an additional safeguard for our data and systems.

Our Program includes:

periodic risk assessments and penetration tests, which are integrated within our enterprise risk management framework processes, designed to identify cybersecurity and technology risks, as well as to formulate management actions to respond to, mitigate and remediate material issues (if any);

annual management reporting to the Board;

reporting of the scope, objectives and results of internal audits on the procedures performed to validate the effectiveness of our control environment related to our information security systems and security controls to the Audit Committee at least two times a year;

annual cybersecurity awareness training, including phishing simulation campaigns, to educate employees on recognizing cybersecurity threats and preventing actions that could unintentionally grant unauthorized access to our systems;

deployment of endpoint protection software, supported by external managed services, to attempt to proactively detect and block malicious code from affecting our systems;

a cross-functional team principally responsible for managing our cybersecurity risk assessment processes and our response to cybersecurity incidents;

the use of external service providers, where appropriate, to assess risk, monitor alerts, perform penetration testing or otherwise assist with aspects of our security controls and response to cybersecurity incidents; and

a documented framework and supporting processes for handling security incidents that facilitates coordination across multiple parts of the Company.

We have not identified risks from known cybersecurity threats, including as a result of any prior security breach, that have materially affected or are reasonably likely to materially affect us, including our business strategy, financial condition and results of operations. We face certain ongoing risks from cybersecurity threats that, if realized, are reasonably likely to materially affect us, including our operations, business strategy, results of operations or financial condition. For a discussion of certain risks related to cybersecurity, refer to the risk factor titled “Cybersecurity incidents affecting our information technology systems could disrupt business operations or cause the release of highly sensitive confidential or personal information, resulting in adverse impacts to our reputation and operating results and potentially leading to litigation and/or governmental investigations, fines and other penalties” in Part I, Item 1A. Risk Factors herein.

Cybersecurity Risk Management Processes Integrated [Flag] true
Cybersecurity Risk Management Processes Integrated [Text Block] Our Program takes a risk-based approach and is integrated into our overall enterprise risk management program. We use the National Institute of Standards and Technology Cybersecurity Framework (the “NIST CSF”) as a benchmark to ensure that our Program is maintained in line with industry best practices. This does not imply that we meet any particular technical standards, specifications or requirements, but it does mean that we use the NIST CSF as a guide to help us identify, assess and manage cybersecurity risks relevant to our business.

The Company maintains a decentralized information technology infrastructure, where each of our business units utilizes a separate and distinct information technology system. This means that if any business unit’s systems are compromised, there is less risk that another business unit will be impacted by that event. This decentralized structure also allows our information security professionals embedded within an individual business unit to make quick, efficient decisions when changes or actions are needed and provides an additional safeguard for our data and systems.

Cybersecurity Risk Management Third Party Engaged [Flag] true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] false
Cybersecurity Risk Board of Directors Oversight [Text Block]

Cybersecurity Governance

Our Board maintains oversight responsibility relating to our Program, with assistance from the Audit Committee. At least annually, our management team (including the leaders of our Information Technology and Internal Audit teams) provides an update regarding our Program to the Board. This update provides an overall assessment of the effectiveness of our Program and a review of areas of focus for the upcoming year. The Board also receives periodic reports from our Vice President, Internal Audit, on the audit focus areas and control testing related to our information security systems and security controls, and our management team updates the Board, as necessary, regarding any significant cybersecurity incidents.

Our management team, including our Senior Vice President and Chief Financial Officer, Senior Vice President and General Counsel, Vice President, Information Technology, and Vice President, Internal Audit, is responsible for assessing and managing our material risks from cybersecurity threats. The team has primary responsibility for our Program and our Vice President, Information Technology, supervises both our internal information security personnel and our retained external cybersecurity consultants. Our management team supervises efforts to prevent, detect, mitigate and remediate cybersecurity risks and incidents through various means, which may include briefings from internal information technology personnel and external consultants engaged by us, as well as alerts and reports produced by security tools deployed in our information technology environment.

Our management team’s experience includes knowledge related to information technology, cybersecurity and incidence response, risk management, control analysis and corporate governance. For additional details about our management team and their experience, refer to the Executive Leadership page on the Company’s website at https://www.amphenol.com/governance/leadership.

Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Audit Committee
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] our management team (including the leaders of our Information Technology and Internal Audit teams) provides an update regarding our Program to the Board. This update provides an overall assessment of the effectiveness of our Program and a review of areas of focus for the upcoming year. The Board also receives periodic reports from our Vice President, Internal Audit, on the audit focus areas and control testing related to our information security systems and security controls, and our management team updates the Board, as necessary, regarding any significant cybersecurity incidents.
Cybersecurity Risk Role of Management [Text Block]

Our management team, including our Senior Vice President and Chief Financial Officer, Senior Vice President and General Counsel, Vice President, Information Technology, and Vice President, Internal Audit, is responsible for assessing and managing our material risks from cybersecurity threats. The team has primary responsibility for our Program and our Vice President, Information Technology, supervises both our internal information security personnel and our retained external cybersecurity consultants. Our management team supervises efforts to prevent, detect, mitigate and remediate cybersecurity risks and incidents through various means, which may include briefings from internal information technology personnel and external consultants engaged by us, as well as alerts and reports produced by security tools deployed in our information technology environment.

Cybersecurity Risk Management Positions or Committees Responsible [Flag] true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Senior Vice President and Chief Financial Officer, Senior Vice President and General Counsel, Vice President, Information Technology, and Vice President, Internal Audit
Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Our management team’s experience includes knowledge related to information technology, cybersecurity and incidence response, risk management, control analysis and corporate governance.
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Our management team supervises efforts to prevent, detect, mitigate and remediate cybersecurity risks and incidents through various means, which may include briefings from internal information technology personnel and external consultants engaged by us, as well as alerts and reports produced by security tools deployed in our information technology environment.
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] true
v3.25.0.1
Summary of Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2024
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, high-speed and 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, specialty cable, 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, coaxial and high-speed cable, as well as 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.

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. The Company’s results of operations for each of the three years ended December 31, 2024

may not necessarily be indicative of its future operating results. The accompanying Financial Statements and Notes herein reflect all adjustments, including normal recurring adjustments considered necessary for a fair presentation of the results, in conformity with U.S. GAAP.

Stock Split

On May 20, 2024, the Company announced that its Board of Directors (the “Board”) approved a two-for-one split of the Company’s Class A Common Stock (“Common Stock”). The stock split was effected in the form of a stock dividend paid to stockholders of record as of the close of business on May 31, 2024. The additional shares were distributed on June 11, 2024, and the Common Stock began trading on a split-adjusted basis on June 12, 2024. The shares of Common Stock retain a par value of $0.001 per share. As a result of the stock split, stockholders received one additional share of Common Stock for each share held as of the record date. There was no change in the number of authorized shares of common stock of the Company as a result of the stock split.

All current and prior year data impacted by the stock split and presented in the accompanying Consolidated Financial Statements and notes thereto, including, but not limited to, number of shares and per share information, stock-based compensation data, including stock options and restricted shares and related per share data, basic and diluted earnings per share, and dividends per share amounts, among others, have been adjusted to reflect the effect of the stock split and to conform to the current year presentation. The impact to the Consolidated Balance Sheets and Consolidated Statements of Changes in Equity herein was an increase of $0.6 to Common stock, with an offsetting decrease in Additional paid-in capital, which has been retroactively adjusted for all periods presented.

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 typically in non-U.S. bank accounts. However, as of December 31, 2024, more than half of the Company’s cash and cash equivalents on hand was located in the United States, primarily as a result of the proceeds from the issuance of the October Senior Notes, as discussed in more detail in Note 4 herein.

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 12 months or less. Long-term investments primarily consist of certificates of deposit with original and remaining maturities of more than 12 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 2024, 2023 or 2022 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 1 and 10 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. The Company performs 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.

Annually, the Company performs its goodwill impairment assessment on its three reporting units. In the third quarter of 2024 and 2023, as part of our 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, 2024 and 2023, 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, 2024 and 2023.

The Company has not recognized any goodwill impairment in 2024, 2023 or 2022 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 2024, 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 2024, 2023 or 2022 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.

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, 2024, 2023 and 2022, 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, 2024 and 2023.

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, 2024 and 2023.

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, 2024 and 2023.

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, 2024, 2023 and 2022.

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, 2024 and 2023. Contract assets and contract liabilities recorded in the Consolidated Balance Sheets were not material as of December 31, 2024 and 2023.

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, 2024 and 2023, and the related amortization expense was not material for the years ended December 31, 2024, 2023 and 2022.

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, 2024, the Company has not provided for deferred income taxes on undistributed foreign earnings of approximately $1,550 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, in most cases, 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 $453.0, $342.2, and $323.6 for the years ended December 31, 2024, 2023 and 2022, 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) for 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 equity attributable to 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 would otherwise result in such noncontrolling interests being considered redeemable, as discussed below. Net income attributable to noncontrolling interests is classified below net income. 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. Net income attributable to redeemable noncontrolling interests is classified below net income. Earnings per share is determined after the impact of the redeemable noncontrolling interests’ share in net income of the Company. 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, 2024, 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, 2024 and 2023, 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, 2024 and 2023, there were no outstanding net investment hedge contracts, and, as such, the aggregate notional value of our outstanding net investment hedge contracts was nil. 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 net investment hedges were not material for the years ended December 31, 2024, 2023 and 2022.

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, 2024, 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 November 2023, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“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. As part of this Annual Report, the Company adopted ASU 2023-07, which was applied retrospectively to all prior periods presented. Refer to Note 13 herein for further details regarding this adoption.

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 continues to evaluate ASU 2023-09 and its disclosure requirements, and will adopt this standard in our upcoming Annual Report on Form 10-K for the year ended December 31, 2025.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement-Reporting Comprehensive Income-Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”). The intent of ASU 2024-03 is to improve financial statement disclosures regarding information about certain costs and expenses. Specifically, ASU 2024-03 requires the disaggregation of significant expenses within the income statement expense line items, including, but not limited to, purchases of inventory, employee compensation, depreciation, intangible asset amortization, and selling expenses, among others, as well as a qualitative description of the remaining amounts not separately disaggregated quantitatively. ASU 2024-03 is effective for annual fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027, with early adoption permitted. The amendments under ASU 2024-03 should be applied on a prospective basis, although retrospective application is permitted. The Company is currently evaluating the potential impact of ASU 2024-03 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.
v3.25.0.1
Inventories (Tables)
12 Months Ended
Dec. 31, 2024
Inventories  
Schedule of Inventories

The components of Inventories are comprised of:

December 31, 

2024

    

2023

Raw materials and supplies

$

1,102.5

$

964.7

Work in process

 

703.5

 

562.3

Finished goods

 

739.7

 

640.1

$

2,545.7

$

2,167.1

v3.25.0.1
Property, Plant and Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2024
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, 

2024

    

2023

Land and improvements

$

47.7

$

33.9

Buildings and improvements

 

543.0

 

483.9

Machinery and equipment

 

3,042.8

 

2,628.4

Office equipment and other

 

542.6

 

430.3

 

4,176.1

 

3,576.5

Accumulated depreciation

 

(2,464.3)

 

(2,261.8)

$

1,711.8

$

1,314.7

v3.25.0.1
Debt (Tables)
12 Months Ended
Dec. 31, 2024
Debt  
Schedule of debt

December 31, 2024

December 31, 2023

 

 

    

Carrying

    

Approximate

    

Carrying

    

Approximate

 

 

Maturity

Amount

Fair Value (1)

Amount

Fair Value (1)

Revolving Credit Facility

 

March 2029

    

$

$

$

$

U.S. Commercial Paper Program (less unamortized discount of nil at December 31, 2024 and 2023)

 

March 2029

    

Euro Commercial Paper Program

 

March 2029

    

Term Loan Credit Facility

 

April 2024

    

3.20% Senior Notes (less unamortized discount of nil at December 31, 2023)

 

April 2024

    

350.0

348.4

2.050% Senior Notes (less unamortized discount of nil and $0.2 at December 31, 2024 and 2023, respectively)

 

March 2025

    

400.0

398.0

399.8

386.8

4.750% Senior Notes (less unamortized discount of $0.5 and $0.9 at December 31, 2024 and 2023, respectively)

March 2026

349.5

350.0

349.1

350.6

0.750% Euro Senior Notes (less unamortized discount of $0.5 and $0.9 at December 31, 2024 and 2023, respectively)

 

May 2026

    

518.6

505.8

551.7

523.4

5.050% Senior Notes (plus unamortized premium of $2.2 at December 31, 2024)

April 2027

702.2

706.1

2.000% Euro Senior Notes (less unamortized discount of $1.1 and $1.3 at December 31, 2024 and 2023, respectively)

 

October 2028

    

518.2

505.9

551.4

531.4

5.050% Senior Notes (less unamortized discount of $0.4 at December 31, 2024)

April 2029

449.6

452.4

4.350% Senior Notes (less unamortized discount of $0.2 and $0.2 at December 31, 2024 and 2023, respectively)

 

June 2029

    

499.8

489.1

499.8

497.2

2.800% Senior Notes (less unamortized discount of $0.4 and $0.4 at December 31, 2024 and 2023, respectively)

 

February 2030

    

899.6

814.1

899.6

817.6

2.200% Senior Notes (less unamortized discount of $1.8 and $2.1 at December 31, 2024 and 2023, respectively)

 

September 2031

    

748.2

624.9

747.9

629.9

5.250% Senior Notes (less unamortized discount of $0.6 at December 31, 2024)

April 2034

599.4

601.0

5.000% Senior Notes (less unamortized discount of $3.7 at December 31, 2024)

January 2035

746.3

731.3

5.375% Senior Notes (less unamortized discount of $7.8 at December 31, 2024)

November 2054

492.2

476.1

Other debt

 

2025-2031

    

4.3

4.3

 

9.5

9.5

Less: unamortized deferred debt issuance costs

 

    

(41.8)

(21.5)

Total debt

 

    

6,886.1

6,659.0

 

4,337.3

 

4,094.8

Less: current portion

 

    

401.7

 

399.7

 

353.8

 

352.2

Total long-term debt

 

    

$

6,484.4

$

6,259.3

$

3,983.5

$

3,742.6

(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

2025

$

401.9

 

2026

 

869.4

2027

 

702.8

2028

 

518.5

2029

 

949.5

Thereafter

 

3,485.8

$

6,927.9

v3.25.0.1
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2024
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

 

2024

Total

Assets (Level 1)

(Level 2)

(Level 3)

 

Short-term investments

$

18.4

$

$

18.4

$

Long-term investments

0.3

0.3

Forward contracts

(1.1)

(1.1)

Redeemable noncontrolling interests

(8.7)

(8.7)

Total

$

8.9

$

$

17.6

$

(8.7)

2023

 

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)

v3.25.0.1
Income Taxes (Tables)
12 Months Ended
Dec. 31, 2024
Income Taxes  
Schedule of income before income taxes

Year Ended December 31, 

 

    

2024

    

2023

    

2022

 

Income before income taxes:

United States

$

462.0

$

521.9

$

442.3

Foreign

 

2,549.9

 

1,932.9

 

2,025.1

$

3,011.9

$

2,454.8

$

2,467.4

Current tax provision (benefit):

United States

$

19.0

$

55.1

$

97.7

Foreign

 

634.1

 

513.0

 

457.6

653.1

568.1

555.3

Deferred tax provision (benefit):

United States

(56.2)

(10.0)

(31.5)

Foreign

 

(26.6)

 

(48.8)

26.8

 

(82.8)

 

(58.8)

 

(4.7)

Total provision for income taxes

$

570.3

$

509.3

$

550.6

Schedule of provision for income taxes

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

Year Ended December 31, 

 

    

2024

    

2023

    

2022

 

Income before income taxes:

United States

$

462.0

$

521.9

$

442.3

Foreign

 

2,549.9

 

1,932.9

 

2,025.1

$

3,011.9

$

2,454.8

$

2,467.4

Current tax provision (benefit):

United States

$

19.0

$

55.1

$

97.7

Foreign

 

634.1

 

513.0

 

457.6

653.1

568.1

555.3

Deferred tax provision (benefit):

United States

(56.2)

(10.0)

(31.5)

Foreign

 

(26.6)

 

(48.8)

26.8

 

(82.8)

 

(58.8)

 

(4.7)

Total provision for income taxes

$

570.3

$

509.3

$

550.6

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

Year Ended December 31, 

 

2024

  

2023

  

2022

 

U.S. statutory federal tax rate

21.0

%

21.0

%

21.0

%

State and local taxes, net

0.6

0.6

0.6

Foreign earnings and dividends taxed at different rates

1.9

2.2

2.3

U.S. tax on foreign income

(0.1)

0.5

Excess tax benefits related to stock-based compensation

(4.7)

(3.4)

(2.3)

Other, net

0.2

0.3

0.2

Effective tax rate

18.9

%

20.7

%

22.3

%

Schedule of deferred tax assets and liabilities

December 31, 

   

2024

   

2023

Deferred tax assets relating to:

Accrued liabilities and reserves

$

115.7

$

78.0

Operating lease liabilities

86.2

70.7

Operating loss, interest, and tax credit carryforwards

 

114.8

 

76.9

Pensions

 

10.2

 

16.7

Inventories

 

112.0

 

86.0

Employee benefits

 

49.5

 

45.1

Total deferred tax assets

488.4

373.4

Valuation allowance

(73.6)

(46.6)

Total deferred tax assets, net of valuation allowances

414.8

326.8

Deferred tax liabilities relating to:

Goodwill

307.2

270.5

Depreciation and amortization

 

144.1

 

130.9

Operating lease right-of-use assets

86.2

70.7

Unremitted foreign earnings

125.3

 

123.2

Total deferred tax liabilities

662.8

595.3

Net deferred tax liability

$

248.0

$

268.5

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

Other long-term assets

$

128.7

$

98.5

Deferred income taxes

 

376.7

 

367.0

Net deferred tax liability, long-term

$

248.0

$

268.5

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

    

2024

    

2023

    

2022

 

Unrecognized tax benefits as of January 1

$

174.2

$

164.1

$

147.7

Gross increases for tax positions in prior periods

 

15.2

 

3.8

 

12.8

Gross increases for tax positions in current period

 

21.1

 

8.4

 

4.9

Settlements

 

(6.1)

 

(1.0)

 

(0.4)

Lapse of statutes of limitations

 

(27.6)

 

(1.1)

 

(0.9)

Unrecognized tax benefits as of December 31

$

176.8

$

174.2

$

164.1

v3.25.0.1
Equity (Tables)
12 Months Ended
Dec. 31, 2024
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, 2022

 

130,601,496

$

21.00

 

6.47

Options granted

 

14,181,596

 

34.47

Options exercised

 

(11,254,778)

 

16.44

Options forfeited

 

(1,258,240)

 

25.91

Options outstanding at December 31, 2022

 

132,270,074

 

22.78

6.03

Options granted

 

12,131,028

 

37.99

Options exercised

 

(22,506,662)

 

17.55

Options forfeited

 

(1,114,116)

 

29.16

Options outstanding at December 31, 2023

 

120,780,324

25.23

5.81

Options granted

 

8,075,819

 

65.67

Options exercised

 

(22,523,753)

 

19.83

Options forfeited

 

(628,199)

 

36.21

Options outstanding at December 31, 2024

 

105,704,191

$

29.40

5.53

$

4,233.2

Vested and non-vested options expected to vest at December 31, 2024

 

103,031,174

$

29.05

5.47

$

4,162.6

Exercisable options at December 31, 2024

 

70,156,937

$

23.65

4.45

$

3,213.5

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, 2024

 

45,047,962

$

7.28

Options granted

 

8,075,819

 

19.33

Options vested

 

(16,961,552)

 

5.88

Options forfeited

 

(614,975)

 

9.23

Non-vested options at December 31, 2024

 

35,547,254

$

10.66

Summary of activity in the option plans

2024

    

2023

    

2022

Total intrinsic value of stock options exercised

$

980.3

$

559.6

$

245.1

Total fair value of stock options vested

 

99.7

 

90.0

 

79.9

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

    

2024

2023

2022

Risk free interest rate

4.4

%  

3.8

%  

2.7

%  

Expected life

 

4.9

years

4.9

years

4.8

years

Expected volatility

 

28.0

%  

28.0

%  

25.9

%  

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, 2022

 

42,122

$

33.46

 

0.38

Restricted shares granted

 

42,624

 

33.80

Shares vested and issued

 

(42,122)

 

33.46

Restricted shares outstanding at December 31, 2022

 

42,624

 

33.80

    

0.37

Restricted shares granted

 

 

Shares vested and issued

 

(42,624)

 

33.80

Restricted shares outstanding at December 31, 2023

    

    

Restricted shares granted

 

21,840

 

65.96

Shares vested and issued

 

 

Restricted shares outstanding at December 31, 2024

    

21,840

    

$

65.96

    

0.36

Schedules of dividends

 

2024

2023

2022

First Quarter

$

0.11

$

0.105

$

0.10

Second Quarter

0.11

0.105

0.10

Third Quarter

0.165

0.105

0.10

Fourth Quarter

0.165

0.11

0.105

Total

$

0.55

$

0.425

$

0.405

Dividends declared and paid for the years ended December 31, 2024, 2023 and 2022 were as follows:

    

2024

2023

2022

Dividends declared

$

662.9

$

507.4

$

482.6

Dividends paid (including those declared in the prior year)

 

595.1

 

500.6

 

477.4

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, 2022

$

(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)

Other comprehensive income (loss) before reclassifications, net of tax of nil, nil and ($5.2), respectively

(199.3)

13.1

(186.2)

Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax of ($1.1)

3.5

3.5

Balance at December 31, 2024

$

(612.0)

$

$

(104.3)

$

(716.3)

v3.25.0.1
Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2024
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)

   

2024

   

2023

   

2022

Net income attributable to Amphenol Corporation stockholders

$

2,424.0

$

1,928.0

$

1,902.3

Weighted average common shares outstanding — Basic

 

1,203.8

 

1,193.0

 

1,192.3

Effect of dilutive stock options

 

59.8

 

48.2

 

49.7

Weighted average common shares outstanding — Diluted

 

1,263.6

 

1,241.2

 

1,242.0

Net income attributable to Amphenol Corporation per common share — Basic

$

2.01

$

1.62

$

1.60

Net income attributable to Amphenol Corporation per common share — Diluted

$

1.92

$

1.55

$

1.53

v3.25.0.1
Benefit Plans and Other Postretirement Benefits (Tables) - Pension Benefits
12 Months Ended
Dec. 31, 2024
Defined Benefit Plan Disclosure  
Schedule of change in projected benefit obligation and plan assets

    

U.S. Plans

Foreign Plans

Total

2024

2023

2024

2023

2024

2023

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.5

$

388.2

$

173.3

$

175.6

$

561.8

$

563.8

Service cost

 

2.2

 

2.5

 

1.5

 

1.3

 

3.7

 

3.8

Interest cost

 

17.8

 

18.6

 

6.3

 

6.8

 

24.1

 

25.4

Plan amendments

 

0.2

 

 

 

 

0.2

 

Actuarial loss (gain)

 

(20.8)

 

8.8

 

(11.3)

 

5.7

 

(32.1)

 

14.5

Foreign exchange translation and other

 

 

 

(8.8)

 

(9.5)

 

(8.8)

 

(9.5)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Projected benefit obligation at end of year

 

341.4

 

388.5

 

154.0

 

173.3

 

495.4

 

561.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Actual return on plan assets

 

8.9

 

37.1

 

6.8

 

7.7

 

15.7

 

44.8

Employer contributions

 

1.1

 

1.1

 

3.8

 

4.3

 

4.9

 

5.4

Foreign exchange translation and other

 

 

 

(4.2)

 

(3.0)

 

(4.2)

 

(3.0)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Fair value of plan assets at end of year

 

359.1

 

395.6

 

85.4

 

86.0

 

444.5

 

481.6

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

31.2

$

21.2

$

3.6

$

0.7

$

34.8

$

21.9

Other accrued expenses

1.2

1.2

2.7

2.9

3.9

4.1

Accrued pension and postretirement benefit obligations

12.3

12.9

69.5

85.1

81.8

98.0

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Accumulated other comprehensive loss, net

$

(96.8)

$

(104.0)

$

(9.6)

$

(18.9)

$

(106.4)

$

(122.9)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

5.53

%

4.97

%

4.13

%

3.72

%

Rate of compensation increase

 

2.40

%

2.40

%

1.91

%

1.89

%

Schedule of amounts recognized in the balance sheet

    

U.S. Plans

Foreign Plans

Total

2024

2023

2024

2023

2024

2023

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.5

$

388.2

$

173.3

$

175.6

$

561.8

$

563.8

Service cost

 

2.2

 

2.5

 

1.5

 

1.3

 

3.7

 

3.8

Interest cost

 

17.8

 

18.6

 

6.3

 

6.8

 

24.1

 

25.4

Plan amendments

 

0.2

 

 

 

 

0.2

 

Actuarial loss (gain)

 

(20.8)

 

8.8

 

(11.3)

 

5.7

 

(32.1)

 

14.5

Foreign exchange translation and other

 

 

 

(8.8)

 

(9.5)

 

(8.8)

 

(9.5)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Projected benefit obligation at end of year

 

341.4

 

388.5

 

154.0

 

173.3

 

495.4

 

561.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Actual return on plan assets

 

8.9

 

37.1

 

6.8

 

7.7

 

15.7

 

44.8

Employer contributions

 

1.1

 

1.1

 

3.8

 

4.3

 

4.9

 

5.4

Foreign exchange translation and other

 

 

 

(4.2)

 

(3.0)

 

(4.2)

 

(3.0)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Fair value of plan assets at end of year

 

359.1

 

395.6

 

85.4

 

86.0

 

444.5

 

481.6

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

31.2

$

21.2

$

3.6

$

0.7

$

34.8

$

21.9

Other accrued expenses

1.2

1.2

2.7

2.9

3.9

4.1

Accrued pension and postretirement benefit obligations

12.3

12.9

69.5

85.1

81.8

98.0

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Accumulated other comprehensive loss, net

$

(96.8)

$

(104.0)

$

(9.6)

$

(18.9)

$

(106.4)

$

(122.9)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

5.53

%

4.97

%

4.13

%

3.72

%

Rate of compensation increase

 

2.40

%

2.40

%

1.91

%

1.89

%

Schedule of weighted average assumptions used to determine projected benefit obligations

    

U.S. Plans

Foreign Plans

Total

2024

2023

2024

2023

2024

2023

Change in projected benefit obligation:

Projected benefit obligation at beginning of year

$

388.5

$

388.2

$

173.3

$

175.6

$

561.8

$

563.8

Service cost

 

2.2

 

2.5

 

1.5

 

1.3

 

3.7

 

3.8

Interest cost

 

17.8

 

18.6

 

6.3

 

6.8

 

24.1

 

25.4

Plan amendments

 

0.2

 

 

 

 

0.2

 

Actuarial loss (gain)

 

(20.8)

 

8.8

 

(11.3)

 

5.7

 

(32.1)

 

14.5

Foreign exchange translation and other

 

 

 

(8.8)

 

(9.5)

 

(8.8)

 

(9.5)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Projected benefit obligation at end of year

 

341.4

 

388.5

 

154.0

 

173.3

 

495.4

 

561.8

Change in plan assets:

Fair value of plan assets at beginning of year

 

395.6

 

387.0

 

86.0

 

83.6

 

481.6

 

470.6

Actual return on plan assets

 

8.9

 

37.1

 

6.8

 

7.7

 

15.7

 

44.8

Employer contributions

 

1.1

 

1.1

 

3.8

 

4.3

 

4.9

 

5.4

Foreign exchange translation and other

 

 

 

(4.2)

 

(3.0)

 

(4.2)

 

(3.0)

Benefits paid

 

(46.5)

 

(29.6)

 

(7.0)

 

(6.6)

 

(53.5)

 

(36.2)

Fair value of plan assets at end of year

 

359.1

 

395.6

 

85.4

 

86.0

 

444.5

 

481.6

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Amounts recognized on the balance sheet as of December 31:

Other long-term assets

$

31.2

$

21.2

$

3.6

$

0.7

$

34.8

$

21.9

Other accrued expenses

1.2

1.2

2.7

2.9

3.9

4.1

Accrued pension and postretirement benefit obligations

12.3

12.9

69.5

85.1

81.8

98.0

Over (under) funded status at end of year

$

17.7

$

7.1

$

(68.6)

$

(87.3)

$

(50.9)

$

(80.2)

Accumulated other comprehensive loss, net

$

(96.8)

$

(104.0)

$

(9.6)

$

(18.9)

$

(106.4)

$

(122.9)

Weighted average assumptions used to determine projected benefit obligations:

Discount rate

 

5.53

%

4.97

%

4.13

%

3.72

%

Rate of compensation increase

 

2.40

%

2.40

%

1.91

%

1.89

%

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, 2024 and 2023:

U.S. Plans

Foreign Plans

2024

  

2023

  

2024

2023

Accumulated benefit obligation

$

22.1

$

23.1

$

88.3

$

142.3

Fair value of plan assets

8.6

9.1

17.7

57.0

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, 2024 and 2023:

U.S. Plans

Foreign Plans

2024

  

2023

  

2024

2023

Projected benefit obligation

$

22.1

$

23.2

$

90.0

$

169.3

Fair value of plan assets

8.6

9.1

17.7

81.2

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

2024

2023

2024

2023

2024

2023

Actuarial losses, net

$

122.7

   

$

131.0

     

$

1.4

   

$

15.7

     

$

124.1

   

$

146.7

Prior service cost

3.7

4.8

0.4

0.5

4.1

5.3

Schedule of components of net pension expense

U.S. Plans

Foreign Plans

Total

  

2024

  

2023

  

2022

2024

  

2023

  

2022

2024

  

2023

  

2022

Components of net pension expense:

Service cost

$

2.2

$

2.5

$

3.5

$

1.5

$

1.3

$

2.5

$

3.7

$

3.8

$

6.0

Interest cost

 

17.8

 

18.6

 

10.6

 

6.3

 

6.8

 

3.4

 

24.1

 

25.4

 

14.0

Expected return on plan assets

 

(24.1)

 

(24.6)

 

(26.5)

 

(4.6)

 

(4.5)

 

(3.4)

 

(28.7)

 

(29.1)

 

(29.9)

Amortization of prior service cost

1.3

1.7

1.4

0.1

1.3

1.8

1.4

Amortization of actuarial losses

 

2.7

 

1.6

 

11.9

 

0.5

 

0.7

 

4.2

 

3.2

 

2.3

 

16.1

Net pension (income) expense

$

(0.1)

$

(0.2)

$

0.9

$

3.7

$

4.4

$

6.7

$

3.6

$

4.2

$

7.6

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

4.97

%

5.18

%

2.69

%

3.72

%

4.20

%

1.58

%

Expected long-term return on assets

 

5.50

%

5.50

%

5.50

%

5.45

%

5.45

%

3.35

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.89

%

1.93

%

1.75

%

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

U.S. Plans

Foreign Plans

Total

  

2024

  

2023

  

2022

2024

  

2023

  

2022

2024

  

2023

  

2022

Components of net pension expense:

Service cost

$

2.2

$

2.5

$

3.5

$

1.5

$

1.3

$

2.5

$

3.7

$

3.8

$

6.0

Interest cost

 

17.8

 

18.6

 

10.6

 

6.3

 

6.8

 

3.4

 

24.1

 

25.4

 

14.0

Expected return on plan assets

 

(24.1)

 

(24.6)

 

(26.5)

 

(4.6)

 

(4.5)

 

(3.4)

 

(28.7)

 

(29.1)

 

(29.9)

Amortization of prior service cost

1.3

1.7

1.4

0.1

1.3

1.8

1.4

Amortization of actuarial losses

 

2.7

 

1.6

 

11.9

 

0.5

 

0.7

 

4.2

 

3.2

 

2.3

 

16.1

Net pension (income) expense

$

(0.1)

$

(0.2)

$

0.9

$

3.7

$

4.4

$

6.7

$

3.6

$

4.2

$

7.6

Weighted average assumptions used to determine net periodic benefit cost:

Discount rate

 

4.97

%

5.18

%

2.69

%

3.72

%

4.20

%

1.58

%

Expected long-term return on assets

 

5.50

%

5.50

%

5.50

%

5.45

%

5.45

%

3.35

%

Rate of compensation increase

 

2.40

%

2.40

%

2.40

%

1.89

%

1.93

%

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 (1)

December 31, 2024

Equity securities:

U.S. equities — large cap

$

26.8

$

$

26.8

$

$

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

 

7.2

 

 

7.2

 

 

International equities — growth

 

10.3

 

10.3

 

 

 

International equities — other

 

40.9

 

 

40.9

 

 

Alternative investment funds

1.1

1.1

Fixed income securities:

U.S. fixed income securities — intermediate term

 

131.1

 

 

131.1

 

 

U.S. fixed income securities — long-term

170.6

 

 

170.6

 

 

International fixed income securities — other

 

36.0

 

36.0

 

 

Insurance contracts

 

17.8

 

 

 

17.8

 

Cash and cash equivalents

 

2.7

 

2.7

 

 

 

Total

$

444.5

$

13.0

$

412.6

$

17.8

$

1.1

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

(1) 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)

2024

2023

Balance on January 1

$

19.5

$

24.3

Unrealized gains (losses), net

0.6

1.6

Purchases, sales and settlements, net

(1.1)

(7.2)

Foreign currency translation

(1.2)

0.8

Balance on December 31

$

17.8

$

19.5

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

 

2025

    

$

33.3

 

$

7.3

 

$

40.6

 

2026

 

28.4

 

7.4

 

35.8

2027

 

28.4

 

7.8

 

36.2

2028

 

28.3

 

8.1

 

36.4

2029

 

28.0

 

8.4

 

36.4

2030-2034

 

132.5

 

45.0

 

177.5

v3.25.0.1
Leases (Tables)
12 Months Ended
Dec. 31, 2024
Leases  
Schedule reconciling undiscounted operating lease payments to operating lease liability

Year Ending December 31,

2025

$

121.1

2026

90.2

2027

65.4

2028

47.7

2029

31.4

Thereafter

93.1

Total future minimum lease payments

$

448.9

Less imputed interest

(54.8)

Total present value of future minimum lease payments

$

394.1

Lease-related account balances on our Consolidated Balance Sheets

    

2024

    

2023

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

$

384.4

$

301.5

Other accrued expenses

$

108.5

$

91.6

Other long-term liabilities

285.6

212.1

Total operating lease liabilities

$

394.1

$

303.7

Additional supplemental Data related to operating leases

Year Ended December 31:

2024

2023

2022

Supplemental Cash Flow Information:

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

Operating cash flows from operating leases

$

141.0

$

114.3

$

109.3

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

$

227.6

$

115.2

$

164.5

As of December 31:

Weighted Average Remaining Lease Term

6 years

5 years

5 years

Weighted Average Discount Rate

4.3

%

3.6

%

2.7

%

v3.25.0.1
Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2024
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, 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

Acquisition-related

 

1,192.3

 

(4.5)

 

58.9

 

1,246.7

Foreign currency translation

 

(21.6)

 

(21.5)

 

(59.8)

 

(102.9)

Goodwill at December 31, 2024

$

3,180.0

$

2,951.5

$

2,104.7

$

8,236.2

Summary of the Company's amortizable intangible assets

December 31, 2024

December 31, 2023

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

12

$

1,296.4

$

519.8

$

776.6

$

782.6

$

450.6

$

332.0

Proprietary technology

13

 

350.3

 

170.9

179.4

 

365.1

 

146.1

219.0

Backlog and other

1

 

154.1

 

154.1

 

114.1

 

99.4

14.7

Total intangible assets (definite-lived)

11

1,800.8

844.8

956.0

1,261.8

696.1

565.7

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

Total

$

2,069.9

$

844.8

$

1,225.1

$

1,530.9

$

696.1

$

834.8

Summary of the Company's indefinite-lived intangible assets

Other than goodwill noted above, the Company’s intangible assets as of December 31, 2024 and 2023 were as follows:

December 31, 2024

December 31, 2023

Weighted

Gross

    

    

Net

    

Gross

    

    

Net

Average

Carrying

Accumulated

Carrying

Carrying

Accumulated

Carrying

Life (years)

Amount

Amortization

Amount

Amount

Amortization

Amount

Customer relationships

12

$

1,296.4

$

519.8

$

776.6

$

782.6

$

450.6

$

332.0

Proprietary technology

13

 

350.3

 

170.9

179.4

 

365.1

 

146.1

219.0

Backlog and other

1

 

154.1

 

154.1

 

114.1

 

99.4

14.7

Total intangible assets (definite-lived)

11

1,800.8

844.8

956.0

1,261.8

696.1

565.7

Trade names (indefinite-lived)

269.1

269.1

269.1

269.1

Total

$

2,069.9

$

844.8

$

1,225.1

$

1,530.9

$

696.1

$

834.8

v3.25.0.1
Reportable Business Segments and International Operations (Tables)
12 Months Ended
Dec. 31, 2024
Reportable Business Segments and International Operations  
Schedule of total sales, intersegment sales and external net sales by segment and a reconciliation by segment of external net sales to segment operating income.

The following tables (i) summarize, by segment, total sales, intersegment sales and external net sales and (ii) reconcile each segment’s external net sales to their respective segment operating income, including segment operating expenses, for each of the years ended December 31, 2024, 2023 and 2022:

Harsh Environment Solutions

Communications Solutions

Interconnect and Sensor Systems

Total

2024

Total sales

$

4,508.6

$

6,375.6

$

4,510.6

$

15,394.8

Less: Intersegment sales

91.2

51.8

29.1

172.1

External net sales

4,417.4

6,323.8

4,481.5

15,222.7

Less: Segment operating expenses (1)

3,324.2

4,754.2

3,655.6

11,734.0

Segment operating income

$

1,093.2

$

1,569.6

$

825.9

$

3,488.7

2023

Total sales

$

3,621.6

$

4,963.0

$

4,129.3

$

12,713.9

Less: Intersegment sales

90.8

50.2

18.2

159.2

External net sales

3,530.8

4,912.8

4,111.1

12,554.7

Less: Segment operating expenses (1)

2,586.9

3,849.3

3,357.4

9,793.6

Segment operating income

$

943.9

$

1,063.5

$

753.7

$

2,761.1

2022

Total sales

$

3,185.3

$

5,731.8

$

3,880.6

$

12,797.7

Less: Intersegment sales

78.1

79.4

17.2

174.7

External net sales

3,107.2

5,652.4

3,863.4

12,623.0

Less: Segment operating expenses (1)

2,305.6

4,406.7

3,146.9

9,859.2

Segment operating income

$

801.6

$

1,245.7

$

716.5

$

2,763.8

(1)

The aggregated amount is comprised of cost of sales, selling, general and administrative expenses, and other segment related expenses.

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 before income taxes for the years ended December 31, 2024, 2023 and 2022 are as follows:

2024

2023

2022

Total segment operating income

$

3,488.7

$

2,761.1

$

2,763.8

Corporate / Other:

Stock-based compensation expense

(109.5)

(99.0)

(89.5)

Amortization of acquisition-related inventory step-up costs

(18.2)

Acquisition-related expenses

(127.4)

(34.6)

(21.5)

Other operating expenses

(76.7)

(67.9)

(67.0)

Operating income

3,156.9

2,559.6

2,585.8

Interest expense

(217.0)

(139.5)

(128.4)

Gain on bargain purchase acquisition

5.4

Other income (expense), net

72.0

29.3

10.0

Income before income taxes

$

3,011.9

$

2,454.8

$

2,467.4

Schedule of depreciation and amortization expense

Depreciation and amortization expense by segment for the years ended December 31, 2024, 2023 and 2022 is as follows:

2024

2023

2022

Harsh Environment Solutions

 

$

126.7

$

91.0

$

78.2

Communications Solutions

226.5

177.0

183.7

Interconnect and Sensor Systems

136.6

131.1

124.5

Corporate / Other (1)

82.7

7.3

6.5

Total

$

572.5

$

406.4

$

392.9

(1)

Amortization of acquired backlog associated with acquisitions for the year ended December 31, 2024 is reported under “Corporate / Other”.

Schedule of revenues and long-lived assets by geographical area

Net sales by geographic area for the years ended December 31, 2024, 2023 and 2022 and long-lived assets by geographic area as of December 31 were as follows:

    

2024

    

2023

    

2022

Net sales

United States

$

5,272.3

$

4,405.4

$

4,155.2

China

 

3,399.9

 

2,884.0

 

3,265.0

Other foreign locations

 

6,550.5

 

5,265.3

 

5,202.8

Total

$

15,222.7

$

12,554.7

$

12,623.0

Long-lived assets(1)

United States

$

576.4

$

442.6

$

386.1

China

 

617.9

 

455.5

 

470.1

Other foreign locations

 

901.9

 

718.1

 

637.6

Total

$

2,096.2

$

1,616.2

$

1,493.8

(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, 2024, 2023 and 2022:

Net sales by sales channel:

2024

2023

2022

End customers and contract manufacturers:

Harsh Environment Solutions

$

3,172.6

$

2,581.6

$

2,176.4

Communications Solutions

4,960.9

3,933.2

4,469.0

Interconnect and Sensor Systems

 

4,311.0

 

3,947.4

 

3,724.6

12,444.5

10,462.2

10,370.0

Distributors and resellers:

Harsh Environment Solutions

1,244.8

949.2

930.8

Communications Solutions

1,362.9

979.6

1,183.4

Interconnect and Sensor Systems

170.5

163.7

138.8

2,778.2

2,092.5

2,253.0

Total Net sales

$

15,222.7

$

12,554.7

$

12,623.0

Net sales by geography:

2024

2023

2022

United States:

Harsh Environment Solutions

$

2,384.7

$

1,790.5

$

1,558.2

Communications Solutions

1,582.3

1,395.8

1,495.3

Interconnect and Sensor Systems

 

1,305.3

 

1,219.1

 

1,101.7

5,272.3

4,405.4

4,155.2

China:

Harsh Environment Solutions

402.3

351.2

437.5

Communications Solutions

2,011.6

1,669.4

1,939.6

Interconnect and Sensor Systems

986.0

863.4

887.9

3,399.9

2,884.0

3,265.0

Other foreign locations:

Harsh Environment Solutions

1,630.4

1,389.1

1,111.5

Communications Solutions

2,729.9

1,847.6

2,217.5

Interconnect and Sensor Systems

2,190.2

2,028.6

1,873.8

6,550.5

5,265.3

5,202.8

Total Net sales

$

15,222.7

$

12,554.7

$

12,623.0

v3.25.0.1
Summary of Significant Accounting Policies, Business (Details) - segment
12 Months Ended
Jan. 01, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Summary of Significant Accounting Policies        
Number of reportable business segments 3 3 3 3
v3.25.0.1
Summary of Significant Accounting Policies, Stock Split (Details)
$ / shares in Units, $ in Millions
Jun. 11, 2024
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Total equity   $ 9,847.4 $ 8,395.8 $ 7,073.5 $ 6,360.1
Stock split conversion ratio 2        
Change in the number of authorized common shares | shares 0        
Class A Common Stock, par value (in dollars per share) | $ / shares $ 0.001 $ 0.001 $ 0.001    
Common Stock          
Total equity   $ 1.2 $ 1.2 1.2 1.2
Additional Paid in Capital          
Total equity   3,601.8 3,100.6 2,649.8 2,408.4
Stock Split [Member] | Common Stock          
Total equity $ 0.6 0.6 0.6 0.6 0.6
Stock Split [Member] | Additional Paid in Capital          
Total equity $ (0.6) $ (0.6) $ (0.6) $ (0.6) $ (0.6)
v3.25.0.1
Summary of Significant Accounting Policies, Cash and Cash Equivalents (Details)
Dec. 31, 2024
Minimum | United States  
Segment Reporting Information  
Percentage of cash and cash equivalents on hand in country 50.00%
v3.25.0.1
Summary of Significant Accounting Policies, Depreciable Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
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    
v3.25.0.1
Summary of Significant Accounting Policies, Leases (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Lease liabilities $ 394.1 $ 303.7
Operating lease right-of-use assets (included in other long-term assets) $ 384.4 $ 301.5
Minimum    
Lease, renewal term 1 year  
Minimum | Real Estate Leases [Member]    
Lease term 1 year  
Maximum    
Lease, renewal term 6 years  
Maximum | Real Estate Leases [Member]    
Lease term 10 years  
v3.25.0.1
Summary of Significant Accounting Policies, Goodwill and Intangible Assets (Details)
12 Months Ended
Jul. 01, 2024
USD ($)
Jul. 01, 2023
USD ($)
Jan. 01, 2022
segment
Dec. 31, 2024
USD ($)
segment
Dec. 31, 2023
USD ($)
segment
Dec. 31, 2022
USD ($)
segment
Summary of Significant Accounting Policies            
Number of reporting units | segment       3 3 3
Number of reportable business segments | segment     3 3 3 3
Goodwill impairment | $ $ 0 $ 0   $ 0 $ 0 $ 0
Impairment of intangible assets | $       $ 0 $ 0 $ 0
v3.25.0.1
Summary of Significant Accounting Policies, Revenue Recognition (Details) - item
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
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    
v3.25.0.1
Summary of Significant Accounting Policies, Income Taxes (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
Income tax  
Undistributed foreign earnings $ 1,550
GILTI policy Tax as incurred
v3.25.0.1
Summary of Significant Accounting Policies, Research and Development (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Research and Development      
Research and development expenses for the creation of new and improved products and processes $ 453.0 $ 342.2 $ 323.6
v3.25.0.1
Summary of Significant Accounting Policies, Derivatives (Details)
$ in Millions
Dec. 31, 2024
USD ($)
contract
Dec. 31, 2023
USD ($)
contract
Cash Flow Hedges [Member]    
Number of forward contracts 0 0
Net Investment Hedges [Member]    
Number of forward contracts 0 0
Aggregate notional value of outstanding derivative contracts | $ $ 0.0 $ 0.0
v3.25.0.1
Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Inventories    
Raw materials and supplies $ 1,102.5 $ 964.7
Work in process 703.5 562.3
Finished goods 739.7 640.1
Inventories $ 2,545.7 $ 2,167.1
v3.25.0.1
Property, Plant and Equipment, Net (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, Plant, and Equipment, Net      
Depreciation $ 390.6 $ 313.7 $ 306.1
v3.25.0.1
Property, Plant and Equipment, Net (Components of Property, Plant and Equipment, Net) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Property, Plant, and Equipment, Net    
Land and improvements $ 47.7 $ 33.9
Buildings and improvements 543.0 483.9
Machinery and equipment 3,042.8 2,628.4
Office equipment and other 542.6 430.3
Property, plant and equipment, gross 4,176.1 3,576.5
Accumulated depreciation (2,464.3) (2,261.8)
Property, plant and equipment, net $ 1,711.8 $ 1,314.7
v3.25.0.1
Debt, Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Oct. 31, 2024
Apr. 05, 2024
Apr. 01, 2024
Dec. 31, 2023
Mar. 30, 2023
Debt            
Less: unamortized deferred debt issuance costs $ (41.8)       $ (21.5)  
Total debt 6,886.1       4,337.3  
Less current portion 401.7       353.8  
Total long-term debt 6,484.4       3,983.5  
Total debt, Approximate Fair Value 6,659.0       4,094.8  
Less current portion, Fair Value 399.7       352.2  
Long-term debt, Approximate Fair Value 6,259.3       3,742.6  
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       0.0  
Unamortized discount 0.0       0.0  
U.S. Commercial Paper Program | Significant Observable Inputs (Level 2)            
Debt            
Total debt, Approximate Fair Value 0.0       0.0  
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  
Term Loan            
Debt            
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 0.0       0.0  
Term Loan | Significant Observable Inputs (Level 2)            
Debt            
Total debt, Approximate Fair Value 0.0       $ 0.0  
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 0.0       $ 350.0  
Unamortized discount         0.0  
3.20% Senior Notes due April 2024 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 0.0       $ 348.4  
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 $ 400.0       $ 399.8  
Unamortized discount 0.0       0.2  
2.05% Senior Notes due March 2025 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 398.0       $ 386.8  
4.750% Senior Notes due March 2026            
Debt            
Stated interest rate (as a percent) 4.75%       4.75% 4.75%
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 349.5       $ 349.1  
Unamortized discount 0.5       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 $ 350.0       350.6  
5.050% Senior Notes due April 2027            
Debt            
Stated interest rate (as a percent) 5.05% 5.05% 5.05%      
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 702.2       0.0  
Unamortized premium 2.2          
5.050% Senior Notes due April 2027 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 706.1       0.0  
5.050% Senior Notes due April 2029            
Debt            
Stated interest rate (as a percent) 5.05%   5.05%      
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 449.6       0.0  
Unamortized discount 0.4          
5.050% Senior Notes due April 2029 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 452.4       $ 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 $ 518.6       $ 551.7  
Unamortized discount 0.5       0.9  
0.750% Euro Senior Notes due May 2026 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 505.8       $ 523.4  
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 $ 518.2       $ 551.4  
Unamortized discount 1.1       1.3  
2.000% Euro Senior Notes due October 2028 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 505.9       $ 531.4  
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       $ 499.8  
Unamortized discount 0.2       0.2  
4.350% Senior Notes due June 2029 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 489.1       $ 497.2  
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       $ 899.6  
Unamortized discount 0.4       0.4  
2.800% Senior Notes due February 2030 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 814.1       $ 817.6  
2.200% Senior Notes due September 2031            
Debt            
Stated interest rate (as a percent) 2.20%       2.20%  
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 748.2       $ 747.9  
Unamortized discount 1.8       2.1  
2.200% Senior Notes due September 2031 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 624.9       629.9  
5.250% Senior Notes due April 2034            
Debt            
Stated interest rate (as a percent) 5.25%   5.25%      
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 599.4       0.0  
Unamortized discount 0.6          
5.250% Senior Notes due April 2034 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 601.0       0.0  
5.000% Senior Notes due January 2035            
Debt            
Stated interest rate (as a percent) 5.00% 5.00%        
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 746.3       0.0  
Unamortized discount 3.7          
5.000% Senior Notes due January 2035 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value $ 731.3       0.0  
5.375% Senior Notes due November 2054            
Debt            
Stated interest rate (as a percent) 5.375% 5.375%        
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs $ 492.2       0.0  
Unamortized discount 7.8          
5.375% Senior Notes due November 2054 | Quoted Prices in Active Markets for Identical Assets (Level 1)            
Debt            
Total debt, Approximate Fair Value 476.1       0.0  
Other Debt            
Debt            
Debt carrying amount, net of unamortized discount or premium before deferred debt issuance costs 4.3       9.5  
Other Debt | Significant Observable Inputs (Level 2)            
Debt            
Total debt, Approximate Fair Value $ 4.3       $ 9.5  
v3.25.0.1
Debt, Revolving Credit Facility (Details) - The "Revolving Credit Facility" - USD ($)
$ in Millions
Mar. 21, 2024
Dec. 31, 2024
Mar. 20, 2024
Dec. 31, 2023
Debt        
Maximum borrowing capacity $ 3,000.0 $ 3,000.0 $ 2,500.0 $ 2,500.0
Borrowings under the Revolving Credit Facility   $ 0.0   $ 0.0
Increase in aggregate commitments $ 500.0      
v3.25.0.1
Debt, Term Loan Credit Facility (Details) - Term Loan - USD ($)
$ in Millions
24 Months Ended
Apr. 19, 2022
Apr. 19, 2024
Debt    
Maximum borrowing capacity $ 750.0  
Maturity term 2 years  
Debt maturity date Apr. 19, 2024  
Borrowings under other line of credit facilities   $ 0.0
v3.25.0.1
Debt, Commercial Paper (Details)
$ in Millions
12 Months Ended
Mar. 21, 2024
USD ($)
Dec. 31, 2024
USD ($)
item
Dec. 31, 2023
USD ($)
Commercial Paper Programs      
Debt      
Maximum borrowing capacity   $ 3,000.0  
U.S. Commercial Paper Program      
Debt      
Debt carrying amount, net of unamortized discount before deferred debt issuance costs   0.0 $ 0.0
Maximum borrowing capacity   $ 3,000.0  
Increase in aggregate commitments $ 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  
Proceeds from issuance of commercial paper   $ 0.0  
Euro Commercial Paper Program | Maximum      
Debt      
Maturity term   183 days  
v3.25.0.1
Debt, U.S. Senior Notes (Details)
$ in Millions
12 Months Ended
Oct. 31, 2024
USD ($)
loan
Apr. 05, 2024
USD ($)
loan
Apr. 01, 2024
USD ($)
Mar. 30, 2023
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Debt              
Fees and expenses related to the Senior Notes         $ 28.4 $ 2.3 $ 0.4
Repayments of long-term debt         $ 364.4 $ 15.7 $ 10.3
U.S. Senior Notes              
Debt              
Redemption price as a percentage of principal amount         100.00%    
2.05% Senior Notes due March 2025              
Debt              
Stated interest rate (as a percent)         2.05% 2.05%  
3.20% Senior Notes due April 2024              
Debt              
Stated interest rate (as a percent)     3.20%     3.20%  
Debt maturity date     Apr. 01, 2024        
Repayments of Senior Notes     $ 350.0        
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% 4.75%  
Debt instrument, face amount, net of discount (as a percent)       99.658%      
Debt maturity date       Mar. 30, 2026      
April Senior Notes              
Debt              
Number of series of unsecured senior notes issued | loan   3          
Redemption price as a percentage of principal amount   100.00%          
Fees and expenses related to the Senior Notes         $ 11.7    
5.050% Senior Notes due April 2027              
Debt              
Debt instrument, principal amount $ 700.0 $ 450.0          
Stated interest rate (as a percent) 5.05% 5.05%     5.05%    
Debt instrument, face amount, net of discount (as a percent)   99.887%          
Debt maturity date   Apr. 05, 2027          
5.050% Senior Notes due April 2027 | Prior To March 5 2027 [Member]              
Debt              
Redemption price as a percentage of principal amount 100.00% 100.00%          
5.050% Senior Notes due April 2029              
Debt              
Debt instrument, principal amount   $ 450.0          
Stated interest rate (as a percent)   5.05%     5.05%    
Debt instrument, face amount, net of discount (as a percent)   99.90%          
Debt maturity date   Apr. 05, 2029          
5.050% Senior Notes due April 2029 | Prior To March 5 2029 [Member]              
Debt              
Redemption price as a percentage of principal amount   100.00%          
5.250% Senior Notes due April 2034              
Debt              
Debt instrument, principal amount   $ 600.0          
Stated interest rate (as a percent)   5.25%     5.25%    
Debt instrument, face amount, net of discount (as a percent)   99.90%          
Debt maturity date   Apr. 05, 2034          
5.250% Senior Notes due April 2034 | Prior To January 5 2034 [Member]              
Debt              
Redemption price as a percentage of principal amount   100.00%          
October Senior Notes [Member]              
Debt              
Number of series of unsecured senior notes issued | loan 3            
Redemption price as a percentage of principal amount 100.00%            
Fees and expenses related to the Senior Notes         $ 13.7    
5.000% Senior Notes due January 2035              
Debt              
Debt instrument, principal amount $ 750.0            
Stated interest rate (as a percent) 5.00%       5.00%    
Debt instrument, face amount, net of discount (as a percent) 99.502%            
Debt maturity date Jan. 15, 2035            
5.000% Senior Notes due January 2035 | Prior To October 15 2034 [Member]              
Debt              
Redemption price as a percentage of principal amount 100.00%            
5.375% Senior Notes due November 2054              
Debt              
Debt instrument, principal amount $ 500.0            
Stated interest rate (as a percent) 5.375%       5.375%    
Debt instrument, face amount, net of discount (as a percent) 98.429%            
Debt maturity date Nov. 15, 2054            
5.375% Senior Notes due November 2054 | Prior to May 15, 2054 [Member]              
Debt              
Redemption price as a percentage of principal amount 100.00%            
Additional 5.050% Senior Notes due April 2027              
Debt              
Debt instrument, principal amount $ 250.0            
Stated interest rate (as a percent) 5.05%            
Debt instrument, face amount, net of premium (as a percent) 101.107%            
Debt maturity date Apr. 05, 2027            
v3.25.0.1
Debt, Euro Senior Notes (Details)
€ in Millions, $ in Millions
12 Months Ended
May 04, 2020
USD ($)
Oct. 08, 2018
USD ($)
Dec. 31, 2024
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%      
v3.25.0.1
Debt, Debt Maturity (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Maturity of the Company's long-term debt over each of the next five years and thereafter  
2025 $ 401.9
2026 869.4
2027 702.8
2028 518.5
2029 949.5
Thereafter 3,485.8
Debt (exclusive of unamortized deferred debt issuance costs) $ 6,927.9
v3.25.0.1
Debt, Letter of Credit (Details) - Uncommitted standby letter of credit facility
$ in Millions
Dec. 31, 2024
USD ($)
Debt  
Standby letter of credit capacity $ 122.2
Letter of credit issued $ 47.0
v3.25.0.1
Fair Value Measurements (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
contract
entity
Dec. 31, 2023
USD ($)
contract
Fair value of assets and liabilities measured on recurring basis    
Long-term investments maturity period 3 years  
Number of acquisitions whose redeemable noncontrolling interest holders have exercised their put options and sold their redeemable noncontrolling interest share | entity 1  
Net Investment Hedging [Member]    
Fair value of assets and liabilities measured on recurring basis    
Number of forward contracts | contract 0 0
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 $ 18.4 $ 185.2
Long-term investments 0.3 0.4
Forward contracts (1.1) (0.5)
Redeemable noncontrolling interests (8.7) (30.7)
Total asset 8.9 154.4
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 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 18.4 185.2
Long-term investments 0.3 0.4
Forward contracts (1.1) (0.5)
Redeemable noncontrolling interests 0.0 0.0
Total asset 17.6 185.1
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 0.0
Redeemable noncontrolling interests (8.7) (30.7)
Total liability $ (8.7) $ (30.7)
v3.25.0.1
Income Taxes, Pretax Income and Provision for Income Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income before income taxes:      
United States $ 462.0 $ 521.9 $ 442.3
Foreign 2,549.9 1,932.9 2,025.1
Income before income taxes 3,011.9 2,454.8 2,467.4
Current tax provision (benefit):      
United States 19.0 55.1 97.7
Foreign 634.1 513.0 457.6
Provision for income taxes, current 653.1 568.1 555.3
Deferred tax provision (benefit):      
United States (56.2) (10.0) (31.5)
Foreign (26.6) (48.8) 26.8
Provision for income taxes, deferred (82.8) (58.8) (4.7)
Provision for income taxes $ 570.3 $ 509.3 $ 550.6
v3.25.0.1
Income Taxes, 2017 Tax Cuts and Jobs Act (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Taxes      
U.S. statutory federal tax rate (as a percent) 21.00% 21.00% 21.00%
v3.25.0.1
Income Taxes, Valuation allowance and tax carryforwards (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Income taxes    
Valuation allowance, related to the foreign net operating loss carryforwards and U.S. state tax credits $ 73.6 $ 46.6
Change in the valuation allowance, related to foreign net operating loss and foreign and U.S. state credit carryforwards 27.0 $ 4.4
Foreign    
Income taxes    
Loss carryforwards 246.8  
Operating loss carryforwards to expire or be refunded 40.2  
U.S. Federal    
Income taxes    
Loss carryforwards 35.7  
Operating loss carryforwards to expire or be refunded 1.6  
Tax credit carryforwards 16.4  
Tax credit carryforwards to expire or be refunded 16.4  
U.S. State    
Income taxes    
Loss carryforwards 151.9  
Operating loss carryforwards to expire or be refunded 151.9  
Tax credit carryforwards 19.5  
Tax credit carryforwards to expire or be refunded $ 12.1  
v3.25.0.1
Income Taxes, U.S. statutory federal tax rate (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
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% 0.60%
Foreign earnings and dividends taxed at different rates (as a percent) 1.90% 2.20% 2.30%
U.S. tax on foreign income (as a percent) (0.10%) 0.00% 0.50%
Excess tax benefits related to stock-based compensation (as a percent) (4.70%) (3.40%) (2.30%)
Other, net (as a percent) 0.20% 0.30% 0.20%
Effective tax rate (as a percent) 18.90% 20.70% 22.30%
v3.25.0.1
Income Taxes, Provision and Effective tax rate impacts (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Taxes      
Provision for income taxes $ (570.3) $ (509.3) $ (550.6)
Effective tax rate 18.90% 20.70% 22.30%
Discrete tax benefit comprised of the settlement of tax audits and lapses of statutes of limitation, along with a difference in a non-U.S. tax filing position $ 18.6    
Impact on the effective tax rate associated with the discrete tax benefit comprised of the settlement of tax audits and lapses of statutes of limitation, along with a difference in a non-U.S. tax filing position. (0.60%)    
Excess tax benefit from option exercises $ 142.6 $ 82.4 $ 56.0
Excess tax benefit, impact on effective tax rate (4.70%) (3.40%) (2.30%)
Impact of gain associated with the bargain purchase acquisition on the effective tax rate   (0.10%)  
Impact of acquisition-related expenses on the effective tax rate 0.30% 0.20% 0.10%
v3.25.0.1
Income Taxes, Deferred tax assets and liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets relating to:    
Accrued liabilities and reserves $ 115.7 $ 78.0
Operating lease liabilities 86.2 70.7
Operating loss, interest, and tax credit carryforwards 114.8 76.9
Pensions 10.2 16.7
Inventories 112.0 86.0
Employee benefits 49.5 45.1
Total deferred tax assets 488.4 373.4
Valuation allowance (73.6) (46.6)
Total deferred tax assets, net of valuation allowances 414.8 326.8
Deferred tax liabilities relating to:    
Goodwill 307.2 270.5
Depreciation and amortization 144.1 130.9
Operating lease right-of-use assets 86.2 70.7
Unremitted foreign earnings 125.3 123.2
Total deferred tax liabilities 662.8 595.3
Net deferred tax liability 248.0 268.5
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Deferred income taxes 376.7 367.0
Deferred income taxes [Member]    
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Deferred income taxes 376.7 367.0
Other Long-Term Assets [Member]    
Classification of deferred tax assets and liabilities, as reflected on the Consolidated Balance Sheets [Abstract]    
Other long-term assets $ 128.7 $ 98.5
v3.25.0.1
Income Taxes, Unrecognized tax benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Taxes      
Unrecognized tax benefits, anticipated adjustment for changing facts and circumstances, over the next twelve month period $ 13.0    
Amount for unrecognized tax benefits, including penalties and interest, which if recognized would impact the effective tax rate 209.7 $ 208.6  
Reconciliation of the gross amounts of unrecognized tax benefits      
Unrecognized tax benefits as of January 1 174.2 164.1 $ 147.7
Gross increases for tax positions in prior periods 15.2 3.8 12.8
Gross increases for tax positions in current period 21.1 8.4 4.9
Settlements (6.1) (1.0) (0.4)
Lapse of statute of limitations (27.6) (1.1) (0.9)
Unrecognized tax benefits at the end of the period 176.8 174.2 164.1
Estimated interest and penalties included in provision for income taxes (4.2) 5.8 0.8
Tax-related interest and penalties liability for unrecognized tax benefits $ 37.7 $ 41.8 $ 35.8
v3.25.0.1
Equity, Stock-Based Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Expense incurred for stock-based compensation plans $ 109.5 $ 99.0 $ 89.5
Recognized tax benefit related to stock-based compensation 154.1 92.4 64.8
Excess tax benefit from option exercises 142.6 82.4 56.0
Selling, General and Administrative Expenses      
Expense incurred for stock-based compensation plans $ 109.5 $ 99.0 $ 89.5
v3.25.0.1
Equity, Stock Options (Details) - shares
12 Months Ended
May 19, 2021
Dec. 31, 2024
May 18, 2021
2017 Option Plan      
Stock-Based Compensation      
Additional shares available for the granting of stock options 80,000,000    
Number of shares originally authorized for issuance of stock options under stock option plan     120,000,000
Remaining shares available for the granting of stock options under plan   55,113,594  
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  
v3.25.0.1
Equity, Stock Option Activity (Details) - Stock Options - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stock option activity        
Options outstanding at the beginning of the period (in shares) 120,780,324 132,270,074 130,601,496  
Non-vested options, options granted (in shares) 8,075,819 12,131,028 14,181,596  
Options exercised (in shares) (22,523,753) (22,506,662) (11,254,778)  
Options forfeited (in shares) (628,199) (1,114,116) (1,258,240)  
Options outstanding at the end of the period (in shares) 105,704,191 120,780,324 132,270,074 130,601,496
Vested and non-vested options expected to vest at the end of the period (in shares) 103,031,174      
Exercisable at the end of the period (in shares) 70,156,937      
Weighted Average Exercise Price        
Weighted average exercise price, options outstanding at the beginning of the period (in dollars per share) $ 25.23 $ 22.78 $ 21  
Weighted average exercise price, options granted (in dollars per share) 65.67 37.99 34.47  
Weighted average exercise price, options exercised (in dollars per share) 19.83 17.55 16.44  
Weighted average exercise price, options forfeited (in dollars per share) 36.21 29.16 25.91  
Weighted average exercise price, options outstanding at the end of the period (in dollars per share) 29.4 $ 25.23 $ 22.78 $ 21
Weighted average exercise price, vested and non-vested options expected to vest (in dollars per share) 29.05      
Weighted average exercise price, exercisable (in dollars per share) $ 23.65      
Weighted Average Remaining Contractual Term        
Weighted average remaining contractual term of options outstanding 5 years 6 months 10 days 5 years 9 months 21 days 6 years 10 days 6 years 5 months 19 days
Weighted average remaining contractual term of options vested options and non-vested expected to vest 5 years 5 months 19 days      
Weighted average remaining contractual term of options exercisable 4 years 5 months 12 days      
Aggregate Intrinsic Value        
Aggregate intrinsic value of options outstanding $ 4,233.2      
Aggregate intrinsic value of options, vested and non-vested options expected to vest 4,162.6      
Aggregate intrinsic value of options exercisable $ 3,213.5      
v3.25.0.1
Equity, Non-vested Stock Option Activity (Details) - Stock Options - $ / shares
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Status of the Company's non-vested options and changes during the year      
Non-vested options at the beginning of the period (in shares) 45,047,962    
Non-vested options, options granted (in shares) 8,075,819 12,131,028 14,181,596
Non-vested options, options vested (in shares) (16,961,552)    
Non-vested options, options forfeited (in shares) (614,975)    
Non-vested options at the end of the period (in shares) 35,547,254 45,047,962  
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) $ 7.28    
Weighted average fair value at grant date, options granted (in dollars per share) 19.33 $ 10.71 $ 8.39
Weighted average fair value at grant date, options vested (in dollars per share) 5.88    
Weighted average fair value at grant date, options forfeited (in dollars per share) 9.23    
Weighted average fair value at the grant date, Non-vested options at the end of the period (in dollars per share) $ 10.66 $ 7.28  
v3.25.0.1
Equity, Option Plans (Details) - Stock Options - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Stock-Based Compensation      
Total intrinsic value of stock options exercised (in dollars) $ 980.3 $ 559.6 $ 245.1
Total fair value of stock options vested (in dollars) 99.7 $ 90.0 $ 79.9
Total compensation cost related to non-vested options not yet recognized (in dollars) $ 287.3    
Weighted average expected amortization period 3 years 4 months 20 days    
v3.25.0.1
Equity, Weighted Average Assumptions (Details) - Stock Options
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Weighted-average assumptions:      
Risk free interest rate (as a percent) 4.40% 3.80% 2.70%
Expected life 4 years 10 months 24 days 4 years 10 months 24 days 4 years 9 months 18 days
Expected volatility (as a percent) 28.00% 28.00% 25.90%
Expected dividend yield (as a percent) 1.00% 1.00% 1.00%
v3.25.0.1
Equity, Restricted Shares (Details) - Restricted Shares - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
May 16, 2024
May 17, 2023
May 22, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
2024 Directors Restricted Stock Plan              
Stock-Based Compensation              
Total shares available for granting under plan 500,000     478,160      
Compensation arrangement expiration date May 15, 2034     May 15, 2034      
Restricted share activity              
Restricted shares outstanding at the beginning of the period (in shares)       0 42,624 42,122  
Restricted shares granted (in shares)       21,840 0 42,624  
Shares vested and issued (in shares)       0 (42,624) (42,122)  
Restricted shares outstanding at the end of the period (in shares)       21,840 0 42,624 42,122
Fair Value at Grant Date              
Fair value at the grant date, restricted shares outstanding at the beginning of the period (in dollars per share)       $ 0 $ 33.8 $ 33.46  
Fair value of restricted shares vested and issued (in dollars per share)       0 33.8 33.46  
Fair value of restricted shares granted (in dollars per share)       65.96 0 33.8  
Fair value at the grant date, restricted shares outstanding at the end of the period (in dollars per share)       $ 65.96 $ 0 $ 33.8 $ 33.46
Weighted Average Remaining Amortization Term (in years)       4 months 9 days   4 months 13 days 4 months 17 days
Total fair value of restricted share awards vested (in dollars)       $ 0.0      
Total compensation cost related to non-vested restricted shares not yet recognized (in dollars)       $ 0.5      
Weighted average expected amortization period       4 months 9 days      
2012 Directors Restricted Stock Plan              
Stock-Based Compensation              
Total shares available for granting under plan       0      
Compensation arrangement expiration date     May 22, 2022 May 22, 2022      
Restricted share activity              
Shares vested and issued (in shares)   (42,624)          
Restricted shares outstanding at the end of the period (in shares)       0      
Fair Value at Grant Date              
Total fair value of restricted share awards vested (in dollars)         $ 1.4 $ 1.4  
v3.25.0.1
Equity, Phantom Stock (Details) - USD ($)
$ in Millions
11 Months Ended
Jun. 05, 2023
May 15, 2024
Dec. 31, 2024
Phantom Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares outstanding (in shares)     0
Total number of vested phantom stock shares (in shares)   38,000  
Total compensation cost related to vested phantom stock shares   $ 1.5  
Total shares of phantom stock expected to be granted     0
Phantom stock for non-employee directors      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares of phantom stock granted (in shares) 38,000    
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) 4,750    
v3.25.0.1
Equity, Stock Repurchase (Details) - USD ($)
shares in Millions, $ in Millions
1 Months Ended 12 Months Ended
Apr. 23, 2024
Apr. 27, 2021
Jan. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Stockholders' Equity            
Treasury stock retired (in dollars)       $ 0.0 $ 0.0 $ 0.0
Treasury stock, shares       3.6 3.5  
Payments for shares repurchased (in dollars)       $ 689.3 $ 585.1 $ 730.5
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       4.1 10.9 18.7
Treasury stock retired (in dollars)       $ 225.6 $ 435.8 $ 689.7
Number of shares repurchased       4.1 14.4 19.8
Payments for shares repurchased (in dollars)       $ 225.6 $ 585.1 $ 730.5
2024 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       4.2    
Treasury stock retired (in dollars)       $ 287.5    
Number of shares repurchased       7.0    
Payments for shares repurchased (in dollars)       $ 463.7    
Subsequent Event | 2024 Stock Repurchase Program            
Stockholders' Equity            
Number of shares repurchased     0.7      
Payments for shares repurchased (in dollars)     $ 50.7      
Value of shares remaining that may be repurchased under the stock repurchase program (in dollars)     $ 1,485.6      
v3.25.0.1
Equity, Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
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, 2024
Dec. 31, 2023
Dec. 31, 2022
Dividends declared per share (in dollars per share) $ 0.165 $ 0.165 $ 0.11 $ 0.11 $ 0.11 $ 0.105 $ 0.105 $ 0.105 $ 0.105 $ 0.1 $ 0.1 $ 0.1 $ 0.55 $ 0.425 $ 0.405
Dividends declared                         $ 662.9 $ 507.4 $ 482.6
Dividends paid (including those declared in the prior year)                         $ 595.1 $ 500.6 $ 477.4
O 2023 Q3 Dividends [Member]                              
Dividends declared per share (in dollars per share)           $ 0.105                  
O 2023 Q4 Dividends [Member]                              
Dividends declared per share (in dollars per share)         $ 0.11                    
O 2024 Q2 Dividends [Member]                              
Dividends declared per share (in dollars per share)     $ 0.11                        
O 2024 Q3 Dividends [Member]                              
Dividends declared per share (in dollars per share)   $ 0.165                          
v3.25.0.1
Equity, Accumulated Other Comprehensive Income (Loss) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
contract
Dec. 31, 2023
USD ($)
contract
Dec. 31, 2022
USD ($)
Equity      
Balance at beginning of period $ 8,346.5    
Balance at end of period $ 9,792.0 $ 8,346.5  
Cash Flow Hedging      
Equity      
Number of forward contracts | contract 0 0  
Accumulated Other Comprehensive Loss      
Equity      
Balance at beginning of period $ (533.6) $ (535.0) $ (286.5)
Other comprehensive income (loss) before reclassification, net of tax (186.2) (1.7) (261.7)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 3.5 3.1 13.2
Balance at end of period (716.3) (533.6) (535.0)
Foreign Currency Translation Adjustment      
Equity      
Balance at beginning of period (412.7) (413.0) (152.8)
Other comprehensive income (loss) before reclassification, net of tax (199.3) 0.3 (260.2)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 0.0 0.0 0.0
Balance at end of period (612.0) (412.7) (413.0)
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 0.0 0.1
Other comprehensive income (loss) before reclassification, net of tax 0.0 0.0 (0.1)
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 0.0
Unrealized (gain) loss on hedging activities, tax 0.0 0.0 0.0
Defined Benefit Plan Liability Adjustment      
Equity      
Balance at beginning of period (120.9) (122.0) (133.8)
Other comprehensive income (loss) before reclassification, net of tax 13.1 (2.0) (1.4)
Amounts reclassified from Accumulated other comprehensive income (loss) to earnings, net of tax 3.5 3.1 13.2
Balance at end of period (104.3) (120.9) (122.0)
Pension and postretirement benefit plan adjustment, tax (5.2) 1.1 (0.4)
Amounts reclassified from Accumulated Other Comprehensive Income (Loss), tax $ (1.1) $ (1.0) (4.3)
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 0  
v3.25.0.1
Earnings Per Share, Reconciliation (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Earnings Per Share      
Net Income (Loss) $ 2,424.0 $ 1,928.0 $ 1,902.3
Weighted average common shares outstanding - Basic (in shares) 1,203.8 1,193.0 1,192.3
Effect of dilutive stock options (in shares) 59.8 48.2 49.7
Weighted average common shares outstanding - Diluted (in shares) 1,263.6 1,241.2 1,242.0
Net income attributable to Amphenol Corporation per common share - Basic:      
Net income attributable to Amphenol Corporation per common share - Basic (in dollars per share) $ 2.01 $ 1.62 $ 1.6
Net income attributable to Amphenol Corporation per common share - Diluted:      
Net income attributable to Amphenol Corporation per common share - Diluted (in dollars per share) $ 1.92 $ 1.55 $ 1.53
Anti-dilutive common shares      
Anti-dilutive stock options, excluded from the computations of earnings per share (in shares) 4.8 14.4 18.0
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Benefit obligation and plan assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Amounts recognized in the balance sheet as of December 31:      
Accrued pension and postretirement benefit obligations $ 129.8 $ 143.0  
Accumulated other comprehensive loss, net $ (716.3) $ (533.6)  
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) 1.91% 1.89%  
Pension Benefits      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year $ 561.8 $ 563.8  
Service cost 3.7 3.8 $ 6.0
Interest cost 24.1 25.4 14.0
Plan amendments 0.2 0.0  
Actuarial (gain) loss (32.1) 14.5  
Foreign exchange translation and other (8.8) (9.5)  
Benefits paid (53.5) (36.2)  
Projected benefit obligation at end of year 495.4 561.8 563.8
Change in plan assets:      
Fair value of plan assets at the beginning of the year 481.6 470.6  
Actual return on plan assets 15.7 44.8  
Employer contributions 4.9 5.4 6.3
Foreign exchange translation and other (4.2) (3.0)  
Benefits paid (53.5) (36.2)  
Fair value of plan assets at end of year 444.5 481.6 470.6
Over (under) funded status at end of year (50.9) (80.2)  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 34.8 21.9  
Other accrued expenses 3.9 4.1  
Accrued pension and postretirement benefit obligations 81.8 98.0  
Accumulated other comprehensive loss, net (106.4) (122.9)  
Accumulated benefit obligation      
Accumulated benefit obligation 492.5 557.0  
Pension Benefits | United States      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 388.5 388.2  
Service cost 2.2 2.5 3.5
Interest cost 17.8 18.6 10.6
Plan amendments 0.2 0.0  
Actuarial (gain) loss (20.8) 8.8  
Foreign exchange translation and other 0.0 0.0  
Benefits paid (46.5) (29.6)  
Projected benefit obligation at end of year 341.4 388.5 388.2
Change in plan assets:      
Fair value of plan assets at the beginning of the year 395.6 387.0  
Actual return on plan assets 8.9 37.1  
Employer contributions 1.1 1.1  
Foreign exchange translation and other 0.0 0.0  
Benefits paid (46.5) (29.6)  
Fair value of plan assets at end of year 359.1 395.6 387.0
Over (under) funded status at end of year 17.7 7.1  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 31.2 21.2  
Other accrued expenses 1.2 1.2  
Accrued pension and postretirement benefit obligations 12.3 12.9  
Accumulated other comprehensive loss, net $ (96.8) $ (104.0)  
Weighted average assumptions used to determine projected benefit obligations:      
Benefit obligation discount rate (as a percent) 5.53% 4.97%  
Increase (decrease) in benefit obligation due to change in discount rate $ (17.0)    
Accumulated benefit obligation      
Accumulated benefit obligation 341.3 $ 388.2  
Pension Benefits | Foreign Plans      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 173.3 175.6  
Service cost 1.5 1.3 2.5
Interest cost 6.3 6.8 3.4
Plan amendments 0.0 0.0  
Actuarial (gain) loss (11.3) 5.7  
Foreign exchange translation and other (8.8) (9.5)  
Benefits paid (7.0) (6.6)  
Projected benefit obligation at end of year 154.0 173.3 175.6
Change in plan assets:      
Fair value of plan assets at the beginning of the year 86.0 83.6  
Actual return on plan assets 6.8 7.7  
Employer contributions 3.8 4.3  
Foreign exchange translation and other (4.2) (3.0)  
Benefits paid (7.0) (6.6)  
Fair value of plan assets at end of year 85.4 86.0 $ 83.6
Over (under) funded status at end of year (68.6) (87.3)  
Amounts recognized in the balance sheet as of December 31:      
Other long-term assets 3.6 0.7  
Other accrued expenses 2.7 2.9  
Accrued pension and postretirement benefit obligations 69.5 85.1  
Accumulated other comprehensive loss, net $ (9.6) $ (18.9)  
Weighted average assumptions used to determine projected benefit obligations:      
Benefit obligation discount rate (as a percent) 4.13% 3.72%  
Accumulated benefit obligation      
Accumulated benefit obligation $ 151.2 $ 168.8  
Largest foreign pension plan | Pension Benefits | Foreign Plans      
Change in projected benefit obligation:      
Projected benefit obligation at beginning of year 81.7    
Projected benefit obligation at end of year $ 72.2 $ 81.7  
Accumulated benefit obligation      
Funding status [Extensible Enumeration] us-gaap:UnfundedPlanMember us-gaap:UnfundedPlanMember  
v3.25.0.1
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, 2024
Dec. 31, 2023
United States    
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]    
Accumulated benefit obligation $ 22.1 $ 23.1
Fair value of plan assets 8.6 9.1
Foreign Plans    
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]    
Accumulated benefit obligation 88.3 142.3
Fair value of plan assets $ 17.7 $ 57.0
v3.25.0.1
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, 2024
Dec. 31, 2023
United States    
Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]    
Projected benefit obligation $ 22.1 $ 23.2
Fair value of plan assets 8.6 9.1
Foreign Plans    
Pension Plan with Projected Benefit Obligation in Excess of Plan Assets [Abstract]    
Projected benefit obligation 90.0 169.3
Fair value of plan assets $ 17.7 $ 81.2
v3.25.0.1
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, 2024
Dec. 31, 2023
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net $ 124.1 $ 146.7
Prior service cost 4.1 5.3
United States    
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net 122.7 131.0
Prior service cost 3.7 4.8
Foreign Plans    
Accumulated other comprehensive income (loss), before tax    
Actuarial losses, net 1.4 15.7
Prior service cost $ 0.4 $ 0.5
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Net pension expense (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
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) 1.89% 1.93% 1.75%
Pension Benefits      
Components of net pension expense:      
Service cost $ 3.7 $ 3.8 $ 6.0
Interest cost $ 24.1 $ 25.4 $ 14.0
Interest cost, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Expected return on plan assets $ (28.7) $ (29.1) $ (29.9)
Expected return on plan assets, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Amortization of prior service cost $ 1.3 $ 1.8 $ 1.4
Amortization of prior service cost, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Amortization of net actuarial losses $ 3.2 $ 2.3 $ 16.1
Amortization of actuarial losses, extensible enumeration Other income (expense), net Other income (expense), net Other income (expense), net
Net pension expense (income) $ 3.6 $ 4.2 $ 7.6
Pension Benefits | United States      
Components of net pension expense:      
Service cost 2.2 2.5 3.5
Interest cost 17.8 18.6 10.6
Expected return on plan assets (24.1) (24.6) (26.5)
Amortization of prior service cost 1.3 1.7 1.4
Amortization of net actuarial losses 2.7 1.6 11.9
Net pension expense (income) $ (0.1) $ (0.2) $ 0.9
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Discount rate (as a percent) 4.97% 5.18% 2.69%
Expected long-term return on assets (as a percent) 5.50% 5.50% 5.50%
Pension Benefits | Foreign Plans      
Components of net pension expense:      
Service cost $ 1.5 $ 1.3 $ 2.5
Interest cost 6.3 6.8 3.4
Expected return on plan assets (4.6) (4.5) (3.4)
Amortization of prior service cost 0.0 0.1 0.0
Amortization of net actuarial losses 0.5 0.7 4.2
Net pension expense (income) $ 3.7 $ 4.4 $ 6.7
Weighted average assumptions used to determine net periodic benefit cost/expense:      
Discount rate (as a percent) 3.72% 4.20% 1.58%
Expected long-term return on assets (as a percent) 5.45% 5.45% 3.35%
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Expected long-term rate of return (Details) - Pension Benefits - United States
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure      
Expected long-term return on assets (as a percent) 5.50% 5.50% 5.50%
Equity securities      
Defined Benefit Plan Disclosure      
Target allocation (as a percent) 15.00% 15.00%  
Actual Investment Allocation used during the year (as a percent) as the basis for determining the expected long-term rate of return 15.00%    
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% 85.00%  
Actual Investment Allocation used during the year (as a percent) as the basis for determining the expected long-term rate of return 85.00%    
Expected long-term return on assets (as a percent) 5.40%    
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Fair value measurements of plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure      
Fair value of pension plan assets $ 444.5 $ 481.6 $ 470.6
U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 26.8 29.0  
U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 7.2 8.7  
International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 10.3 22.1  
International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 40.9 25.7  
Alternative investment funds      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 1.1 5.6  
U.S. fixed income securities - intermediate term      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 131.1 113.5  
Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 170.6 210.9  
International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 36.0 39.7  
Insurance contracts      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 17.8 19.5  
Cash and cash equivalents      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 2.7 6.9  
Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 13.0 19.2  
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 10.3 12.3  
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 2.7 6.9  
Significant Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 412.6 437.3  
Significant Observable Inputs (Level 2) | U.S. equities - large cap      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 26.8 29.0  
Significant Observable Inputs (Level 2) | U.S. equities - small/mid cap and other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 7.2 8.7  
Significant Observable Inputs (Level 2) | International equities - growth      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 0.0 9.8  
Significant Observable Inputs (Level 2) | International equities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 40.9 25.7  
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 131.1 113.5  
Significant Observable Inputs (Level 2) | Fixed Income Securities - Long Term [Member]      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 170.6 210.9  
Significant Observable Inputs (Level 2) | International fixed income securities - other      
Defined Benefit Plan Disclosure      
Fair value of pension plan assets 36.0 39.7  
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 17.8 19.5 $ 24.3
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 17.8 19.5  
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 1.1 5.6  
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 1.1 5.6  
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  
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Level 3 plan assets (Details) - Pension Benefits - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure    
Fair value of plan assets at the beginning of the year $ 481.6 $ 470.6
Foreign currency translation (4.2) (3.0)
Fair value of plan assets at end of year 444.5 481.6
Significant Unobservable Inputs (Level 3)    
Defined Benefit Plan Disclosure    
Fair value of plan assets at the beginning of the year 19.5 24.3
Unrealized gains (losses), net 0.6 1.6
Purchases, sales and settlements, net (1.1) (7.2)
Foreign currency translation (1.2) 0.8
Fair value of plan assets at end of year $ 17.8 $ 19.5
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Other (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Pension Benefits      
Defined Benefit Plan, Contributions      
Plan contributions by employer $ 4.9 $ 5.4 $ 6.3
Expected benefits payments      
2025 40.6    
2026 35.8    
2027 36.2    
2028 36.4    
2029 36.4    
2030-2034 177.5    
Pension Benefits | United States      
Defined Benefit Plan, Contributions      
Plan contributions by employer 1.1 1.1  
Expected benefits payments      
2025 33.3    
2026 28.4    
2027 28.4    
2028 28.3    
2029 28.0    
2030-2034 132.5    
Pension Benefits | Foreign Plans      
Defined Benefit Plan, Contributions      
Plan contributions by employer 3.8 4.3  
Expected benefits payments      
2025 7.3    
2026 7.4    
2027 7.8    
2028 8.1    
2029 8.4    
2030-2034 45.0    
Other Foreign Statutory Plans [Member]      
Net liability      
Net liability for foreign subsidiaries with benefits under local statutory plans $ 30.0 $ 30.9  
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, OPEB benefit obligation (Details) - Other Postretirement Benefits - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Postretirement Benefits [Line Items]    
Projected benefit obligation $ 3.5 $ 3.9
Benefit obligation discount rate (as a percent) 5.58% 5.00%
v3.25.0.1
Benefit Plans and Other Postretirement Benefits, Defined contribution plans (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Contribution Plan Disclosure        
Contributions to U.S. defined contribution plans by the Company, maximum percentage of eligible compensation 7.00% 7.00% 7.00% 6.00%
Matching contributions to U.S. defined contribution plans by the Company   $ 24.7 $ 24.0 $ 18.0
v3.25.0.1
Leases, Operating lease cost (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases      
Operating lease cost $ 156.2 $ 127.1 $ 121.4
v3.25.0.1
Leases, Operating lease maturity table and account balances (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Leases    
2025 $ 121.1  
2026 90.2  
2027 65.4  
2028 47.7  
2029 31.4  
Thereafter 93.1  
Total future minimum lease payments 448.9  
Less imputed interest (54.8)  
Total operating lease liabilities 394.1 $ 303.7
Operating lease right-of-use assets (included in other long-term assets) $ 384.4 $ 301.5
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other Assets, Noncurrent Other Assets, Noncurrent
Other accrued expenses $ 108.5 $ 91.6
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Other Liabilities, Current Other Liabilities, Current
Other long-term liabilities $ 285.6 $ 212.1
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
v3.25.0.1
Leases, Other supplemental data related to operating leases (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Leases      
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 141.0 $ 114.3 $ 109.3
Right-of-use assets obtained in exchange for lease liabilities $ 227.6 $ 115.2 $ 164.5
Weighted Average Remaining Lease Term 6 years 5 years 5 years
Weighted Average Discount Rate 4.30% 3.60% 2.70%
v3.25.0.1
Acquisitions (Details)
$ in Millions
3 Months Ended 12 Months Ended
May 21, 2024
USD ($)
Jan. 30, 2024
Jan. 01, 2022
segment
Jun. 30, 2023
agreement
Dec. 31, 2024
USD ($)
agreement
segment
Dec. 31, 2023
USD ($)
segment
agreement
Dec. 31, 2022
USD ($)
segment
agreement
Acquisitions              
Number of reportable business segments | segment     3   3 3 3
Number of acquisitions | agreement         2 10 2
Total acquisition-related expenses         $ 145.6    
Total acquisition-related expenses, net of tax         119.3    
Acquisition-related expenses         127.4 $ 34.6 $ 21.5
Acquisition-related expenses, net of tax           30.2 18.4
Purchase price, net of cash acquired         2,156.4 970.4 288.2
Bargain purchase gain on acquisition         0.0 5.4 0.0
Goodwill         8,236.2 7,092.4 6,446.1
Amortization expense         154.7 86.0 81.0
Amortization of acquisition-related inventory step-up costs recorded in Cost of sales         18.2 $ 0.0 0.0
Carlisle Interconnect Technologies Acquisition [Member]              
Acquisitions              
Business acquisition, date of agreement   Jan. 30, 2024          
Business acquisition, effective date May 21, 2024            
Purchase price, net of cash acquired $ 1,995.3            
Goodwill 1,113.7       1,113.7    
Goodwill deductible for tax purposes 0.0       0.0    
Definite-lived intangible assets 543.0       543.0    
2023 Acquisitions [Member]              
Acquisitions              
Goodwill         667.4    
Goodwill deductible for tax purposes         151.0    
Definite-lived intangible assets         $ 153.2    
Number of acquisitions for which acquisition accounting has been completed | agreement         10    
Customer relationships | Carlisle Interconnect Technologies Acquisition [Member]              
Acquisitions              
Definite-lived intangible assets $ 488.0       $ 488.0    
Finite-lived acquired intangible assets weighted-average useful life 15 years       15 years    
Customer relationships | 2023 Acquisitions [Member] | Minimum              
Acquisitions              
Finite-lived acquired intangible assets weighted-average useful life         6 years    
Customer relationships | 2023 Acquisitions [Member] | Maximum              
Acquisitions              
Finite-lived acquired intangible assets weighted-average useful life         12 years    
Proprietary technology | 2023 Acquisitions [Member] | Minimum              
Acquisitions              
Finite-lived acquired intangible assets weighted-average useful life         6 years    
Proprietary technology | 2023 Acquisitions [Member] | Maximum              
Acquisitions              
Finite-lived acquired intangible assets weighted-average useful life         12 years    
Backlog | Carlisle Interconnect Technologies Acquisition [Member]              
Acquisitions              
Definite-lived intangible assets $ 55.0       $ 55.0    
Finite-lived acquired intangible assets weighted-average useful life 4 months 24 days       4 months 24 days    
Amortization expense         $ 55.0    
Backlog | 2022 Acquisitions [Member]              
Acquisitions              
Amortization expense             $ 12.0
Backlog | 2023 Acquisitions [Member]              
Acquisitions              
Number of acquisitions | agreement           3  
Finite-lived acquired intangible assets weighted-average useful life         3 months    
Amortization expense           $ 12.4  
Backlog | 2024 Acquisitions [Member]              
Acquisitions              
Amortization expense         $ 55.0    
Amortization of Inventory step-up costs recorded to Cost of Sales [Member] | Carlisle Interconnect Technologies Acquisition [Member]              
Acquisitions              
Amortization of acquisition-related inventory step-up costs recorded in Cost of sales         $ 18.2    
Bargain Purchase [Member] | 2023 Acquisitions [Member]              
Acquisitions              
Number of acquisitions | agreement       1      
Harsh Environment Solutions              
Acquisitions              
Number of acquisitions | agreement         2 5 1
Goodwill         $ 3,180.0 $ 2,009.3 $ 1,667.1
Interconnect and Sensor Systems              
Acquisitions              
Number of acquisitions | agreement           3 1
Goodwill         2,104.7 $ 2,105.6 $ 1,870.9
Communications Solutions              
Acquisitions              
Number of acquisitions | agreement           2  
Goodwill         $ 2,951.5 $ 2,977.5 $ 2,908.1
v3.25.0.1
Goodwill and Other Intangible Assets, Goodwill (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Goodwill.    
Goodwill, Beginning Balance $ 7,092.4 $ 6,446.1
Acquisition-related 1,246.7 612.4
Foreign currency translation (102.9) 33.9
Goodwill, Ending Balance 8,236.2 7,092.4
Harsh Environment Solutions    
Goodwill.    
Goodwill, Beginning Balance 2,009.3 1,667.1
Acquisition-related 1,192.3 334.9
Foreign currency translation (21.6) 7.3
Goodwill, Ending Balance 3,180.0 2,009.3
Communications Solutions    
Goodwill.    
Goodwill, Beginning Balance 2,977.5 2,908.1
Acquisition-related (4.5) 68.8
Foreign currency translation (21.5) 0.6
Goodwill, Ending Balance 2,951.5 2,977.5
Interconnect and Sensor Systems    
Goodwill.    
Goodwill, Beginning Balance 2,105.6 1,870.9
Acquisition-related 58.9 208.7
Foreign currency translation (59.8) 26.0
Goodwill, Ending Balance $ 2,104.7 $ 2,105.6
v3.25.0.1
Goodwill and Other Intangible Assets, Intangible Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Intangible Assets    
Weighted average useful lives of amortizable intangible assets 11 years  
Gross Carrying Amount (definite-lived) $ 1,800.8 $ 1,261.8
Accumulated Amortization 844.8 696.1
Net Carrying Amount, (definite-lived) 956.0 565.7
Indefinite-lived trade name intangible asset 269.1 269.1
Intangible assets, gross (excluding goodwill) 2,069.9 1,530.9
Net Carrying Amount, intangible assets $ 1,225.1 834.8
Customer relationships    
Intangible Assets    
Weighted average useful lives of amortizable intangible assets 12 years  
Gross Carrying Amount (definite-lived) $ 1,296.4 782.6
Accumulated Amortization 519.8 450.6
Net Carrying Amount, (definite-lived) $ 776.6 332.0
Proprietary technology    
Intangible Assets    
Weighted average useful lives of amortizable intangible assets 13 years  
Gross Carrying Amount (definite-lived) $ 350.3 365.1
Accumulated Amortization 170.9 146.1
Net Carrying Amount, (definite-lived) $ 179.4 219.0
Backlog and other    
Intangible Assets    
Weighted average useful lives of amortizable intangible assets 1 year  
Gross Carrying Amount (definite-lived) $ 154.1 114.1
Accumulated Amortization 154.1 99.4
Net Carrying Amount, (definite-lived) $ 0.0 $ 14.7
v3.25.0.1
Goodwill and Other Intangible Assets, Amortization (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Intangible assets      
Amortization expense $ 154.7 $ 86.0 $ 81.0
Amortization expense estimated for each of the next five fiscal years      
2025 104.0    
2026 102.4    
2027 95.7    
2028 88.4    
2029 77.7    
2022 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense     $ 12.0
2023 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense   $ 12.4  
2024 Acquisitions [Member] | Backlog      
Intangible assets      
Amortization expense 55.0    
Carlisle Interconnect Technologies Acquisition [Member] | Backlog      
Intangible assets      
Amortization expense $ 55.0    
v3.25.0.1
Reportable Business Segments and International Operations, Net sales reconciliation by segment, and net sales to segment operating income reconciliation, including segment operating expenses (Details)
$ in Millions
12 Months Ended
Jan. 01, 2022
segment
individual
Dec. 31, 2024
USD ($)
segment
individual
Dec. 31, 2023
USD ($)
segment
individual
Dec. 31, 2022
USD ($)
segment
individual
Segment reporting information        
Number of reportable business segments | segment 3 3 3 3
Number of segment managers | individual 3 3 3 3
Net sales   $ 15,222.7 $ 12,554.7 $ 12,623.0
Operating income   3,156.9 2,559.6 2,585.8
Harsh Environment Solutions        
Segment reporting information        
Net sales   4,417.4 3,530.8 3,107.2
Communications Solutions        
Segment reporting information        
Net sales   6,323.8 4,912.8 5,652.4
Interconnect and Sensor Systems        
Segment reporting information        
Net sales   4,481.5 4,111.1 3,863.4
Operating Segment        
Segment reporting information        
Net sales   15,394.8 12,713.9 12,797.7
Less: Segment operating expenses   11,734.0 9,793.6 9,859.2
Operating income   3,488.7 2,761.1 2,763.8
Operating Segment | Harsh Environment Solutions        
Segment reporting information        
Net sales   4,508.6 3,621.6 3,185.3
Less: Segment operating expenses   3,324.2 2,586.9 2,305.6
Operating income   1,093.2 943.9 801.6
Operating Segment | Communications Solutions        
Segment reporting information        
Net sales   6,375.6 4,963.0 5,731.8
Less: Segment operating expenses   4,754.2 3,849.3 4,406.7
Operating income   1,569.6 1,063.5 1,245.7
Operating Segment | Interconnect and Sensor Systems        
Segment reporting information        
Net sales   4,510.6 4,129.3 3,880.6
Less: Segment operating expenses   3,655.6 3,357.4 3,146.9
Operating income   825.9 753.7 716.5
Inter-Segment        
Segment reporting information        
Net sales   172.1 159.2 174.7
Inter-Segment | Harsh Environment Solutions        
Segment reporting information        
Net sales   91.2 90.8 78.1
Inter-Segment | Communications Solutions        
Segment reporting information        
Net sales   51.8 50.2 79.4
Inter-Segment | Interconnect and Sensor Systems        
Segment reporting information        
Net sales   $ 29.1 $ 18.2 $ 17.2
v3.25.0.1
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, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information      
Stock-based compensation expense $ (109.5) $ (99.0) $ (89.5)
Amortization of acquisition-related inventory step-up costs recorded in Cost of sales (18.2) 0.0 0.0
Acquisition-related expenses (127.4) (34.6) (21.5)
Other operating expenses (76.7) (67.9) (67.0)
Operating income 3,156.9 2,559.6 2,585.8
Interest expense (217.0) (139.5) (128.4)
Gain on bargain purchase acquisition 0.0 5.4 0.0
Other income (expense), net 72.0 29.3 10.0
Income before income taxes 3,011.9 2,454.8 2,467.4
Operating Segment      
Segment Reporting Information      
Operating income 3,488.7 2,761.1 2,763.8
Operating Segment | Harsh Environment Solutions      
Segment Reporting Information      
Operating income 1,093.2 943.9 801.6
Operating Segment | Communications Solutions      
Segment Reporting Information      
Operating income 1,569.6 1,063.5 1,245.7
Operating Segment | Interconnect and Sensor Systems      
Segment Reporting Information      
Operating income $ 825.9 $ 753.7 $ 716.5
v3.25.0.1
Reportable Business Segments and International Operations, Depreciation & Amortization by Segment (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment reporting information      
Depreciation and amortization $ 572.5 $ 406.4 $ 392.9
Harsh Environment Solutions      
Segment reporting information      
Depreciation and amortization 126.7 91.0 78.2
Communications Solutions      
Segment reporting information      
Depreciation and amortization 226.5 177.0 183.7
Interconnect and Sensor Systems      
Segment reporting information      
Depreciation and amortization 136.6 131.1 124.5
Corporate and Other      
Segment reporting information      
Depreciation and amortization $ 82.7 $ 7.3 $ 6.5
v3.25.0.1
Reportable Business Segments and International Operations, Depreciation & Amortization by Segment Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information      
Amortization expense $ 154.7 $ 86.0 $ 81.0
Amortization of acquisition-related inventory step-up costs recorded in Cost of sales 18.2 $ 0.0 $ 0.0
Carlisle Interconnect Technologies Acquisition [Member] | Amortization of Inventory step-up costs recorded to Cost of Sales [Member]      
Segment Reporting Information      
Amortization of acquisition-related inventory step-up costs recorded in Cost of sales 18.2    
Backlog | Carlisle Interconnect Technologies Acquisition [Member]      
Segment Reporting Information      
Amortization expense $ 55.0    
v3.25.0.1
Reportable Business Segments and International Operations, Geographic information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues and long-lived assets by geographical area      
Net sales $ 15,222.7 $ 12,554.7 $ 12,623.0
Long-lived assets 2,096.2 1,616.2 1,493.8
United States      
Revenues and long-lived assets by geographical area      
Net sales 5,272.3 4,405.4 4,155.2
Long-lived assets 576.4 442.6 386.1
China      
Revenues and long-lived assets by geographical area      
Net sales 3,399.9 2,884.0 3,265.0
Long-lived assets 617.9 455.5 470.1
Other foreign locations      
Revenues and long-lived assets by geographical area      
Net sales 6,550.5 5,265.3 5,202.8
Long-lived assets $ 901.9 $ 718.1 $ 637.6
v3.25.0.1
Reportable Business Segments and International Operations, Disaggregation of Net Sales (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenue recognition      
Net sales $ 15,222.7 $ 12,554.7 $ 12,623.0
United States      
Revenue recognition      
Net sales 5,272.3 4,405.4 4,155.2
China      
Revenue recognition      
Net sales 3,399.9 2,884.0 3,265.0
Other foreign locations      
Revenue recognition      
Net sales 6,550.5 5,265.3 5,202.8
End customers and contract manufacturers      
Revenue recognition      
Net sales 12,444.5 10,462.2 10,370.0
Distributors and resellers      
Revenue recognition      
Net sales 2,778.2 2,092.5 2,253.0
Communications Solutions      
Revenue recognition      
Net sales 6,323.8 4,912.8 5,652.4
Communications Solutions | United States      
Revenue recognition      
Net sales 1,582.3 1,395.8 1,495.3
Communications Solutions | China      
Revenue recognition      
Net sales 2,011.6 1,669.4 1,939.6
Communications Solutions | Other foreign locations      
Revenue recognition      
Net sales 2,729.9 1,847.6 2,217.5
Communications Solutions | End customers and contract manufacturers      
Revenue recognition      
Net sales 4,960.9 3,933.2 4,469.0
Communications Solutions | Distributors and resellers      
Revenue recognition      
Net sales 1,362.9 979.6 1,183.4
Interconnect and Sensor Systems      
Revenue recognition      
Net sales 4,481.5 4,111.1 3,863.4
Interconnect and Sensor Systems | United States      
Revenue recognition      
Net sales 1,305.3 1,219.1 1,101.7
Interconnect and Sensor Systems | China      
Revenue recognition      
Net sales 986.0 863.4 887.9
Interconnect and Sensor Systems | Other foreign locations      
Revenue recognition      
Net sales 2,190.2 2,028.6 1,873.8
Interconnect and Sensor Systems | End customers and contract manufacturers      
Revenue recognition      
Net sales 4,311.0 3,947.4 3,724.6
Interconnect and Sensor Systems | Distributors and resellers      
Revenue recognition      
Net sales 170.5 163.7 138.8
Harsh Environment Solutions      
Revenue recognition      
Net sales 4,417.4 3,530.8 3,107.2
Harsh Environment Solutions | United States      
Revenue recognition      
Net sales 2,384.7 1,790.5 1,558.2
Harsh Environment Solutions | China      
Revenue recognition      
Net sales 402.3 351.2 437.5
Harsh Environment Solutions | Other foreign locations      
Revenue recognition      
Net sales 1,630.4 1,389.1 1,111.5
Harsh Environment Solutions | End customers and contract manufacturers      
Revenue recognition      
Net sales 3,172.6 2,581.6 2,176.4
Harsh Environment Solutions | Distributors and resellers      
Revenue recognition      
Net sales $ 1,244.8 $ 949.2 $ 930.8
v3.25.0.1
Reportable Business Segments and International Operations, Other (Details)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Net sales | Customer risk      
Concentration risk      
Major customers disclosure No No No
v3.25.0.1
Commitments and Contingencies (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Commitments and Contingencies  
Purchase commitments of certain goods and services in 2025 $ 1,321.8
Purchase commitments of certain goods and services in 2026 and 2027 63.7
Purchase commitments of certain goods and services, thereafter $ 5.6
v3.25.0.1
Subsequent Events (Details) - USD ($)
$ in Millions
Jan. 31, 2025
Jul. 18, 2024
CommScope's Mobile Networks Business acquisition    
Subsequent Events    
Business acquisition, date of agreement   Jul. 18, 2024
Subsequent Event | CommScope's Mobile Networks Business acquisition | Communications Solutions    
Subsequent Events    
Business acquisition, effective date Jan. 31, 2025  
Aggregate purchase price $ 2,100  
Subsequent Event | LifeSync acquisition | Harsh Environment Solutions    
Subsequent Events    
Business acquisition, date of agreement Jan. 31, 2025  
v3.25.0.1
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Allowance for doubtful accounts      
Valuation and Qualifying Accounts      
Balance at beginning of period $ 68.4 $ 63.9 $ 43.5
Charged to cost and expenses 2.6 13.4 20.2
Additions (Deductions) (4.5) (8.9) 0.2
Balance at end of period 66.5 68.4 63.9
Valuation allowance on deferred tax assets      
Valuation and Qualifying Accounts      
Balance at beginning of period 46.6 42.2 44.9
Charged to cost and expenses 10.8 3.4 (1.1)
Additions (Deductions) 16.2 1.0 (1.6)
Balance at end of period $ 73.6 $ 46.6 $ 42.2