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GOODWILL AND OTHER INTANGIBLE ASSETS
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS GOODWILL AND OTHER INTANGIBLE ASSETS
Changes in the carrying amount of goodwill by segment are as follows:
(In millions)January 1, 2024AdditionsTranslationDecember 31, 2024AdditionsTranslationDecember 31, 2025
Electrical Americas$7,415 $17 $(35)$7,396 $581 $33 $8,010 
Electrical Global4,038 — (196)3,842 — 314 4,156 
Aerospace2,901 — (45)2,856 — 121 2,977 
Mobility623 — (5)619 — 7 626 
Total$14,977 $17 $(281)$14,713 $581 $475 $15,769 
During the first quarter of 2026, Eaton re-segmented certain business segments due to a reorganization of the Company's businesses. The new segment is Mobility, which consists of the legacy Vehicle and eMobility segments. The Company's reporting units are equivalent to the business segments, except for the Aerospace segment which continues to have two reporting units.
As a result of the re-segmentation, the goodwill of the legacy Vehicle and eMobility reporting units was combined and assigned to the new Mobility reporting unit. The re-segmentation did not result in a reallocation of goodwill using a relative fair value methodology, as the re-segmentation resulted in a combination of previously existing reporting units and did not change the composition of other reporting units.
The 2025 additions to goodwill relate primarily to the anticipated synergies of acquiring Fibrebond and Resilient. The allocation of the purchase price from these acquisitions are preliminary and will be completed during the measurement period. The 2024 additions to goodwill relate primarily to the anticipated synergies of acquiring Exertherm.
A summary of other intangible assets is as follows:
December 31
20252024
(In millions)Historical
cost		Accumulated
amortization		Historical
cost		Accumulated
amortization
Intangible assets not subject to amortization
Trademarks$1,215 $1,200 
Intangible assets subject to amortization
Customer relationships$5,236 $2,934 $4,659 $2,577 
Patents and technology2,225 1,191 1,979 1,056 
Trademarks1,214 787 1,107 693 
Other235 159 169 131 
Total intangible assets subject to amortization$8,911 $5,071 $7,915 $4,456 
Amortization expense related to intangible assets subject to amortization in 2025, and estimated amortization expense for each of the next five years, is as follows
(In millions)
2025$461 
2026469 
2027438 
2028365 
2029328 
2030286