RETIREMENT BENEFITS PLANS (Tables)
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12 Months Ended |
Dec. 31, 2025 |
| Retirement Benefits [Abstract] |
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| Schedule of Obligations and Funded Status |
Obligations and Funded Status | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | Other postretirement liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | 2025 | | 2024 | | Funded status | | | | | | | | | | | | | Fair value of plan assets | $ | 2,469 | | | $ | 2,445 | | | $ | 1,722 | | | $ | 1,548 | | | $ | 20 | | | $ | 18 | | | Benefit obligations | (2,650) | | | (2,700) | | | (2,038) | | | (1,863) | | | (194) | | | (196) | | | Funded status | $ | (181) | | | $ | (255) | | | $ | (316) | | | $ | (315) | | | $ | (174) | | | $ | (178) | | | | | | | | | | | | | | Amounts recognized in the Consolidated Balance Sheets | | | | | | | | | | | | | Other assets | $ | — | | | $ | — | | | $ | 256 | | | $ | 231 | | | $ | — | | | $ | — | | | Other current liabilities | (9) | | | (29) | | | (42) | | | (31) | | | (13) | | | (14) | | Pension liabilities and Other postretirement benefits liabilities | (172) | | | (226) | | | (530) | | | (515) | | | (161) | | | (164) | | | Total | $ | (181) | | | $ | (255) | | | $ | (316) | | | $ | (315) | | | $ | (174) | | | $ | (178) | | | | | | | | | | | | | | Amounts recognized in Accumulated other comprehensive loss (pre-tax) | | | | | | | | | | | | | Net actuarial loss (gain) | $ | 847 | | | $ | 904 | | | $ | 738 | | | $ | 678 | | | $ | (72) | | | $ | (87) | | | Prior service cost | 3 | | | 5 | | | 15 | | | 6 | | | — | | | — | | | | | | | | | | | | | | | Total | $ | 850 | | | $ | 909 | | | $ | 753 | | | $ | 684 | | | $ | (72) | | | $ | (87) | |
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| Schedule of Change in Benefit Obligations |
Change in Benefit Obligations | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | Other postretirement liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | 2025 | | 2024 | | Balance at January 1 | $ | 2,700 | | | $ | 2,824 | | | $ | 1,863 | | | $ | 2,022 | | | $ | 196 | | | $ | 212 | | | Service cost | 16 | | | 18 | | | 45 | | | 46 | | | — | | | 1 | | | Interest cost | 135 | | | 134 | | | 88 | | | 85 | | | 11 | | | 10 | | | Actuarial loss (gain) | 55 | | | (20) | | | 13 | | | (82) | | | 2 | | | (11) | | | Gross benefits paid | (256) | | | (258) | | | (139) | | | (121) | | | (27) | | | (29) | | | Currency translation | — | | | — | | | 155 | | | (87) | | | 1 | | | (3) | | | | | | | | | | | | | | | Plan amendments | — | | | 2 | | | 10 | | | (3) | | | — | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | | Other | — | | | — | | | 3 | | | 3 | | | 11 | | | 16 | | | Balance at December 31 | $ | 2,650 | | | $ | 2,700 | | | $ | 2,038 | | | $ | 1,863 | | | $ | 194 | | | $ | 196 | | | | | | | | | | | | | | | Accumulated benefit obligation | $ | 2,650 | | | $ | 2,686 | | | $ | 1,925 | | | $ | 1,766 | | | | | |
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| Schedule of Change in Plan Assets |
Change in Plan Assets | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | Other postretirement liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | 2025 | | 2024 | | Balance at January 1 | $ | 2,445 | | | $ | 2,604 | | | $ | 1,548 | | | $ | 1,633 | | | $ | 18 | | | $ | 17 | | | Actual return on plan assets | 250 | | | 84 | | | 111 | | | (10) | | | 2 | | | 1 | | | Employer contributions | 30 | | | 15 | | | 94 | | | 95 | | | 16 | | | 18 | | | Gross benefits paid | (256) | | | (258) | | | (139) | | | (121) | | | (27) | | | (29) | | | Currency translation | — | | | — | | | 105 | | | (52) | | | — | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Other | — | | | — | | | 3 | | | 3 | | | 11 | | | 11 | | | Balance at December 31 | $ | 2,469 | | | $ | 2,445 | | | $ | 1,722 | | | $ | 1,548 | | | $ | 20 | | | $ | 18 | |
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| Schedule of Components of Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets |
The components of pension plans with an accumulated benefit obligation in excess of plan assets at December 31 are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | Accumulated benefit obligation | $ | 2,650 | | | $ | 2,686 | | | $ | 640 | | | $ | 701 | | | Fair value of plan assets | 2,469 | | | 2,445 | | | 121 | | | 209 | |
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| Schedule of Components of Pension Plans with Projected Benefit Obligations in Excess of Plan Assets |
The components of pension plans with a projected benefit obligation in excess of plan assets at December 31 are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | Projected benefit obligation | $ | 2,650 | | | $ | 2,700 | | | $ | 738 | | | $ | 772 | | | Fair value of plan assets | 2,469 | | | 2,445 | | | 166 | | | 225 | |
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| Schedule of Changes in Pension and Other Postretirement Benefits Liabilities recognized in Accumulated Other Comprehensive Income (Loss) |
Changes in pension and other postretirement benefit liabilities recognized in Accumulated other comprehensive loss are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension liabilities | | Non-United States pension liabilities | | Other postretirement liabilities | | (In millions) | 2025 | | 2024 | | 2025 | | 2024 | | 2025 | | 2024 | | Balance at January 1 | $ | 909 | | | $ | 871 | | | $ | 684 | | | $ | 661 | | | $ | (87) | | | $ | (93) | | | Prior service cost arising during the year | — | | | 2 | | | 10 | | | (3) | | | — | | | — | | | Net loss (gain) arising during the year | (4) | | | 86 | | | 30 | | | 62 | | | 1 | | | (7) | | | Currency translation | — | | | — | | | 54 | | | (18) | | | 1 | | | — | | | | | | | | | | | | | | | Less amounts included in expense during the year | (55) | | | (50) | | | (25) | | | (18) | | | 13 | | | 13 | | | Net change for the year | (59) | | | 38 | | | 69 | | | 23 | | | 15 | | | 6 | | | Balance at December 31 | $ | 850 | | | $ | 909 | | | $ | 753 | | | $ | 684 | | | $ | (72) | | | $ | (87) | |
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| Schedule of Benefits Expense |
The components of retirement benefits expense (income) are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension benefit expense | | Non-United States pension benefit expense | | Other postretirement benefits expense (income) | | | | | | (In millions) | 2025 | | 2024 | | 2023 | | 2025 | | 2024 | | 2023 | | 2025 | | 2024 | | 2023 | | Service cost | $ | 16 | | | $ | 18 | | | $ | 19 | | | $ | 45 | | | $ | 46 | | | $ | 43 | | | $ | — | | | $ | 1 | | | $ | 1 | | | Interest cost | 135 | | | 134 | | | 142 | | | 88 | | | 85 | | | 85 | | | 11 | | | 10 | | | 10 | | | Expected return on plan assets | (190) | | | (190) | | | (195) | | | (128) | | | (134) | | | (121) | | | (1) | | | (1) | | | (1) | | | Amortization | 15 | | | 9 | | | 4 | | | 16 | | | 11 | | | 7 | | | (13) | | | (13) | | | (17) | | | (24) | | | (29) | | | (30) | | | 21 | | | 8 | | | 14 | | | (3) | | | (3) | | | (7) | | | | | | | | | | | | | | | | | | | | | Settlements, curtailments, and special termination benefits | 40 | | | 41 | | | 34 | | | 9 | | | 7 | | | 4 | | | — | | | — | | | — | | | Total expense (income) | $ | 16 | | | $ | 12 | | | $ | 4 | | | $ | 30 | | | $ | 15 | | | $ | 18 | | | $ | (3) | | | $ | (3) | | | $ | (7) | |
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| Schedule of Assumptions Used to Determine Pension Plans Expense |
Pension Plans | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | United States pension plans | | Non-United States pension plans | | 2025 | | 2024 | | 2023 | | 2025 | | 2024 | | 2023 | | Assumptions used to determine benefit obligation at year-end | | | | | | | | | | | | | Discount rate | 5.34 | % | | 5.61 | % | | 5.14 | % | | 5.11 | % | | 4.92 | % | | 4.52 | % | | Rate of compensation increase | 3.05 | % | | 3.32 | % | | 3.40 | % | | 3.13 | % | | 3.16 | % | | 3.17 | % | | Interest rate used to credit cash balance plans | 4.56 | % | | 4.79 | % | | 4.01 | % | | 2.50 | % | | 2.01 | % | | 1.59 | % | | | | | | | | | | | | | | Assumptions used to determine expense | | | | | | | | | | | | | Discount rate used to determine benefit obligation | 5.61 | % | | 5.14 | % | | 5.47 | % | | 4.92 | % | | 4.52 | % | | 4.83 | % | | Discount rate used to determine service cost | 5.76 | % | | 5.24 | % | | 5.54 | % | | 5.90 | % | | 6.00 | % | | 5.90 | % | | Discount rate used to determine interest cost | 5.29 | % | | 4.98 | % | | 5.33 | % | | 4.71 | % | | 4.47 | % | | 4.80 | % | | Expected long-term return on plan assets | 7.00 | % | | 6.50 | % | | 6.50 | % | | 6.63 | % | | 6.79 | % | | 6.32 | % | | Rate of compensation increase | 3.32 | % | | 3.40 | % | | 3.33 | % | | 3.16 | % | | 3.17 | % | | 3.12 | % | | Interest rate used to credit cash balance plans | 4.79 | % | | 4.01 | % | | 3.67 | % | | 2.01 | % | | 1.59 | % | | 2.32 | % |
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| Schedule of Assumptions Used to Determine Other Postretirement Benefits Obligations and Expense |
Assumptions used to determine other postretirement benefits obligations and expense are as follows: | | | | | | | | | | | | | | | | | | | Other postretirement benefits plans | | 2025 | | 2024 | | 2023 | | Assumptions used to determine benefit obligation at year-end | | | | | | | Discount rate | 5.24 | % | | 5.57 | % | | 5.11 | % | | Health care cost trend rate assumed for next year | 6.50 | % | | 6.70 | % | | 7.70 | % | | Ultimate health care cost trend rate | 4.75 | % | | 4.75 | % | | 4.75 | % | | Year ultimate health care cost trend rate is achieved | 2035 | | 2034 | | 2033 | | | | | | | | Assumptions used to determine expense | | | | | | | Discount rate used to determine benefit obligation | 5.57 | % | | 5.11 | % | | 5.46 | % | | Discount rate used to determine service cost | 5.84 | % | | 5.25 | % | | 5.53 | % | | Discount rate used to determine interest cost | 5.29 | % | | 4.96 | % | | 5.32 | % | | Initial health care cost trend rate | 6.70 | % | | 7.70 | % | | 7.10 | % | | Ultimate health care cost trend rate | 4.75 | % | | 4.75 | % | | 4.75 | % | | Year ultimate health care cost trend rate is achieved | 2034 | | 2033 | | 2031 |
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| Schedule of Employer Contributions to Pension Plans |
Contributions to pension plans that Eaton expects to make in 2026, and made in 2025, 2024 and 2023, are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Expected in 2026 | | 2025 | | 2024 | | 2023 | | United States plans | $ | 9 | | | $ | 30 | | | $ | 15 | | | $ | 16 | | | Non-United States plans | 89 | | | 94 | | | 95 | | | 97 | | | Total contributions | $ | 98 | | | $ | 124 | | | $ | 110 | | | $ | 113 | |
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| Schedule of Expected Pension and Other Postretirement Benefit Payments and Expected Subsidy |
The following table provides the estimated pension and other postretirement benefit payments for each of the next five years, and the five years thereafter in the aggregate. For other postretirement benefits liabilities, the Company expects minor subsidy receipts related to the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 that would reduce the estimated payments listed below. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Estimated United States pension payments | | Estimated non-United States pension payments | | Estimated other postretirement benefit payments | | | | 2026 | $ | 276 | | | $ | 135 | | | $ | 15 | | | | | 2027 | 259 | | | 135 | | | 19 | | | | | 2028 | 250 | | | 136 | | | 18 | | | | | 2029 | 241 | | | 141 | | | 17 | | | | | 2030 | 226 | | | 144 | | | 17 | | | | 2031 - 2035 | 1,008 | | | 757 | | | 75 | | | |
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| Schedule of Fair Value of Pension Plan Assets |
A summary of the fair value of pension plan assets at December 31, 2025 and 2024, is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Total | | Quoted prices in active markets for identical assets (Level 1) | | Other observable inputs (Level 2) | | Unobservable inputs (Level 3)1 | | 2025 | | | | | | | | | Common collective trusts | | | | | | | | | Non-United States equity and global equities | $ | 211 | | | $ | — | | | $ | 211 | | | $ | — | | | | | | | | | | | Fixed income | 32 | | | — | | | 32 | | | — | | | Fixed income securities | 1,647 | | | — | | | 1,647 | | | — | | | United States treasuries | 258 | | | 255 | | | 3 | | | — | | | | | | | | | | | Real estate | 248 | | | 100 | | | 32 | | | 116 | | | | | | | | | | | Cash equivalents | 49 | | | 25 | | | 24 | | | — | | | Exchange traded funds | 105 | | | 105 | | | — | | | — | | | Other | 419 | | | — | | | 50 | | | 369 | | Common collective and other trusts measured at net asset value | 1,287 | | | | | | | | | | | | | | | | | Money market funds measured at net asset value | 2 | | | | | | | | Pending purchases and sales of plan assets, and interest receivable | (67) | | | | | | | | | Total pension plan assets | $ | 4,191 | | | $ | 485 | | | $ | 1,999 | | | $ | 485 | |
1 These pension plan assets include private equity, private credit and private real estate funds that generally have redemption notice periods of six months or longer and are often not eligible for redemption until the underlying assets are liquidated or distributed. The Company has unfunded commitments to these funds of approximately $158 million at December 31, 2025, which will be satisfied by a reallocation of pension plan assets. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Total | | Quoted prices in active markets for identical assets (Level 1) | | Other observable inputs (Level 2) | | Unobservable inputs (Level 3)1 | | 2024 | | | | | | | | | Common collective trusts | | | | | | | | | Non-United States equity and global equities | $ | 241 | | | $ | — | | | $ | 241 | | | $ | — | | | | | | | | | | | Fixed income | 28 | | | — | | | 28 | | | — | | | Fixed income securities | 1,582 | | | — | | | 1,582 | | | — | | | United States treasuries | 461 | | | 453 | | | 8 | | | — | | | | | | | | | | | Real estate | 212 | | | 63 | | | 25 | | | 124 | | | | | | | | | | | Cash equivalents | 83 | | | 55 | | | 28 | | | — | | | Exchange traded funds | 91 | | | 91 | | | — | | | — | | | Other | 402 | | | — | | | 40 | | | 362 | | Common collective and other trusts measured at net asset value | 978 | | | | | | | | | | | | | | | | | | | | | | | | Pending purchases and sales of plan assets, and interest receivable | (85) | | | | | | | | | Total pension plan assets | $ | 3,993 | | | $ | 662 | | | $ | 1,952 | | | $ | 486 | |
1 These pension plan assets include private equity, private credit and private real estate funds that generally have redemption notice periods of six months or longer, and are often not eligible for redemption until the underlying assets are liquidated or distributed. The Company has unfunded commitments to these funds of approximately $128 million at December 31, 2024, which will be satisfied by a reallocation of pension plan assets.
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| Schedule of Fair Value Measurement of Plan Assets using Significant Unobservable Inputs |
The fair value measurement of plan assets using significant unobservable inputs (Level 3) changed during 2025 and 2024 due to the following: | | | | | | | | | | | | | | | | | | | | | (In millions) | Real estate | | | | Other | | Total | | Balance at January 1, 2024 | $ | 199 | | | | | $ | 370 | | | $ | 569 | | | Actual return on plan assets: | | | | | | | | | | | | | | | | Gains (losses) relating to assets still held at year-end | (24) | | | | | 29 | | | 5 | | Purchases, sales, settlements - net | (51) | | | | | (37) | | | (88) | | | Transfers into or out of Level 3 | — | | | | | — | | | — | | | Balance at December 31, 2024 | 124 | | | | | 362 | | | 486 | | | Actual return on plan assets: | | | | | | | | | | | | | | | | Gains (losses) relating to assets still held at year-end | 14 | | | | | 32 | | | 46 | | Purchases, sales, settlements - net | (22) | | | | | (25) | | | (47) | | | Transfers into or out of Level 3 | — | | | | | — | | | — | | | Balance at December 31, 2025 | $ | 116 | | | | | $ | 369 | | | $ | 485 | |
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| Schedule of Fair Value of Other Postretirement Benefits Plan Assets |
A summary of the fair value of other postretirement benefits plan assets at December 31, 2025 and 2024, is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Total | | Quoted prices in active markets for identical assets (Level 1) | | Other observable inputs (Level 2) | | Unobservable inputs (Level 3) | | 2025 | | | | | | | | | Cash equivalents | $ | 3 | | | $ | 3 | | | $ | — | | | $ | — | | Common collective and other trusts measured at net asset value | 17 | | | | | | | | | Total other postretirement benefits plan assets | $ | 20 | | | $ | 3 | | | $ | — | | | $ | — | |
| | | | | | | | | | | | | | | | | | | | | | | | | (In millions) | Total | | Quoted prices in active markets for identical assets (Level 1) | | Other observable inputs (Level 2) | | Unobservable inputs (Level 3) | | 2024 | | | | | | | | | | | | | | | | | | | | | | | | | Cash equivalents | $ | 3 | | | $ | 3 | | | $ | — | | | $ | — | | Common collective and other trusts measured at net asset value | 15 | | | | | | | | | Total other postretirement benefits plan assets | $ | 18 | | | $ | 3 | | | $ | — | | | $ | — | |
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| Schedule of Employer Contributions to Defined Contribution Benefit Plans, Charged to Expense |
The total contributions related to these plans are charged to expense and are as follows: | | | | | | | (In millions) | | | 2025 | $ | 239 | | | 2024 | 220 | | | 2023 | 201 | |
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