| 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 six months ended June 30, 2025, by reportable business segment: | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2024 | | Acquisitions | | Currency
Translation
Adjustment | | | | June 30, 2025 | Aerospace Technologies | $ | 3,028 | | | $ | 1 | | | $ | 34 | | | | | $ | 3,063 | | Industrial Automation | 9,164 | | | — | | | 302 | | | | | 9,466 | | Building Automation | 6,136 | | | 97 | | | 165 | | | | | 6,398 | | Energy and Sustainability Solutions | 2,598 | | | 1,305 | | | 13 | | | | | 3,916 | | | Corporate and All Other | 899 | | | — | | | 62 | | | | | 961 | | | Total Goodwill | $ | 21,825 | | | $ | 1,403 | | | $ | 576 | | | | | $ | 23,804 | |
Other intangible assets are comprised of: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 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 | $ | 3,737 | | | $ | (1,971) | | | $ | 1,766 | | | $ | 3,513 | | | $ | (1,849) | | | $ | 1,664 | | | Customer relationships | 7,203 | | | (2,480) | | | 4,723 | | | 6,411 | | | (2,251) | | | 4,160 | | | Trademarks | 439 | | | (318) | | | 121 | | | 398 | | | (296) | | | 102 | | | Other | 593 | | | (277) | | | 316 | | | 561 | | | (270) | | | 291 | | | Total definite-life intangibles—net | 11,972 | | | (5,046) | | | 6,926 | | | 10,883 | | | (4,666) | | | 6,217 | | Indefinite-life intangibles | | | | | | | | | | | | | Trademarks | 430 | | | — | | | 430 | | | 439 | | | — | | | 439 | | | Total Other intangible assets—net | $ | 12,402 | | | $ | (5,046) | | | $ | 7,356 | | | $ | 11,322 | | | $ | (4,666) | | | $ | 6,656 | |
Intangible assets amortization expense was $133 million and $269 million for the three and six months ended June 30, 2025, respectively, and $85 million and $155 million for the three and six months ended June 30, 2024, respectively.
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