| GOODWILL AND OTHER INTANGIBLE ASSETS-NET |
GOODWILL AND OTHER INTANGIBLE ASSETS—NET The following table summarizes the change in the carrying amount of goodwill for the years ended December 31, 2025, and 2024, by reportable business segment: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Aerospace Technologies | | Industrial Automation | | Building Automation | | Energy and Sustainability Solutions | | Corporate and All Other | | Total Goodwill | | December 31, 2023 | $ | 2,386 | | | $ | 9,650 | | | $ | 3,380 | | | $ | 916 | | | $ | 906 | | | $ | 17,238 | | | Acquisitions | 660 | | | — | | | 2,827 | | | 876 | | | — | | | 4,363 | | | Currency translation adjustment | (18) | | | (75) | | | (71) | | | — | | | (7) | | | (171) | | | Reclassified to Assets held for sale | — | | | (411) | | | — | | | — | | | — | | | (411) | | | December 31, 2024 | 3,028 | | | 9,164 | | | 6,136 | | | 1,792 | | | 899 | | | 21,019 | | | Acquisitions | (28) | | | — | | | 122 | | | 1,259 | | | — | | | 1,353 | | | Currency translation adjustment | 25 | | | 312 | | | 181 | | | 1 | | | 50 | | | 569 | | Impairment | — | | | (724) | | | — | | | — | | | — | | | (724) | | Reclassified to Assets held for sale | — | | | (1,138) | | | — | | | — | | | — | | | (1,138) | | | December 31, 2025 | $ | 3,025 | | | $ | 7,614 | | | $ | 6,439 | | | $ | 3,052 | | | $ | 949 | | | $ | 21,079 | |
Other intangible assets are comprised of: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | December 31, 2024 | Gross
Carrying
Amount | | Accumulated
Amortization | | Net
Carrying
Amount | | Gross
Carrying
Amount | | Accumulated
Amortization | | Net
Carrying
Amount | Definite-life intangibles | | | | | | | | | | | | | Patents and technology | $ | 3,354 | | | $ | (1,714) | | | $ | 1,640 | | | $ | 3,506 | | | $ | (1,845) | | | $ | 1,661 | | | Customer relationships | 6,325 | | | (2,008) | | | 4,317 | | | 6,378 | | | (2,224) | | | 4,154 | | | Trademarks | 297 | | | (232) | | | 65 | | | 398 | | | (296) | | | 102 | | | Other | 592 | | | (272) | | | 320 | | | 558 | | | (268) | | | 290 | | Total definite-life intangibles—net | 10,568 | | | (4,226) | | | 6,342 | | | 10,840 | | | (4,633) | | | 6,207 | | Indefinite-life intangibles | | | | | | | | | | | | Trademarks1 | 394 | | | — | | | 394 | | | 414 | | | — | | | 414 | | Total Other intangible assets—net2 | $ | 10,962 | | | $ | (4,226) | | | $ | 6,736 | | | $ | 11,254 | | | $ | (4,633) | | | $ | 6,621 | |
| | | | | | | | | | 1 | | An impairment charge of $44 million and $48 million was recorded on indefinite-lived intangible assets related to the Industrial Automation business and personal protective equipment business during the years ended December 31, 2025 and 2024, respectively. | | 2 | | As of December 31, 2025 and 2024, Total Other intangible assets—net excludes net carrying amount of $262 million and $597 million, respectively, that is included in Assets held for sale in the Consolidated Balance Sheet. Refer to Note 2 Acquisitions, Divestitures, and Discontinued Operations. |
Intangible assets amortization expense includes $570 million, $411 million, and $290 million for the years ended December 31, 2025, 2024, and 2023, respectively. Estimated future intangible asset amortization expense for each of the next five years for intangible assets recorded as of December 31, 2025, is as follows: | | | | | | | | December 31, 2025 | | 2026 | $ | 599 | | | 2027 | 598 | | | 2028 | 584 | | | 2029 | 571 | | | 2030 | 549 | | | |
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