NOTE 9. GOODWILL AND OTHER INTANGIBLE ASSETS
The following table summarizes the changes in the carrying amount of goodwill for the years ended December 31, 2025 and 2024:
In millionsComponentsAcceleraDistributionPower SystemsEngineTotal
Balance at December 31, 2023$1,884 $496 $83 $11 $25 $2,499 
Acquisitions— — 33 — 35 
Foreign currency translation and other(48)(2)— — — (50)
Divestiture (1)
(114)— — — — (114)
Balance at December 31, 20241,724 494 83 44 25 2,370 
Acquisitions    9 9 
Foreign currency translation and other50 4  1  55 
Impairment (2)
 (210)   (210)
Balance at December 31, 2025$1,774 $288 $83 $45 $34 $2,224 
(1) See NOTE 21, “ATMUS DIVESTITURE,” for additional information.
(2) See NOTE 22, “ACCELERA ACTIONS,” for additional information.
Intangible assets that have finite useful lives are amortized over their estimated useful lives. The following table summarizes our other intangible assets:
 December 31,
In millions20252024
Amortizable intangible assets
Software$924 $793 
Less: Accumulated amortization(469)(372)
Software, net455 421 
Trademarks, patents, customer relationships and other2,718 2,685 
Less: Accumulated amortization(1,028)(819)
Trademarks, patents, customer relationships and other, net1,690 1,866 
Unamortizable other intangible assets22 64 
Other intangible assets, net$2,167 $2,351 
Amortization expense for software and other intangibles totaled $323 million, $324 million and $324 million for the years ended December 31, 2025, 2024 and 2023, respectively. The projected amortization expense of our intangible assets, assuming no further acquisitions or dispositions, is as follows:
In millions20262027202820292030
Projected amortization expense$312 $303 $280 $246 $204 
We impaired $27 million and $84 million of other intangible assets in our Accelera segment in 2025 and 2024, respectively. See NOTE 22, “ACCELERA ACTIONS,” for additional information.

Historical Timeline

Fiscal YearFiled
2025Feb 10, 2026Showing above
2024Feb 11, 2025
2023Feb 12, 2024
2022Feb 14, 2023
2021Feb 8, 2022
2020Feb 10, 2021
2019Feb 11, 2020
2018Feb 11, 2019
2017Feb 14, 2018
2016Feb 13, 2017
2015Feb 12, 2016

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.