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Other Intangible Assets, Net
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets, Net OTHER INTANGIBLE ASSETS, NET
Other intangible assets, net are detailed below:
December 31, 2024Gross
Amount		Accumulated
Amortization		Net
Amount
Technologies & licenses766(577)189
Purchased & internally developed software484(395)89
Intangibles in progress
68— 68
Total1,318 (972)346 
December 31, 2023Gross
Amount		Accumulated
Amortization		Net
Amount
Technologies & licenses764 (547)217 
Purchased & internally developed software509 (415)94 
Intangibles in progress
56 — 56 
Total1,329 (962)367 
The line “Intangibles in progress” in the table above also includes internally developed software under construction and software not ready for their intended use.
Amortization expense related to intangible assets subject to amortization was $102 million, $97 million and $103 million for the years ended December 31, 2024, 2023 and 2022, respectively.
Estimated future amortization expense related to intangible assets as of December 31, 2024 is as follows:
Year
2025112 
202685 
202752 
202825 
202918 
Thereafter54 
Total346 
In 2024, the Company recorded a total $9 million impairment loss, fully reported in the line “Research and development expenses” of the consolidated statement of income. The impairment loss was related to acquired technologies with no alternative future use.
In 2023 and 2022, the Company recorded impairment losses of $42 million and $38 million, respectively, for certain technologies acquired as part of certain business combinations.