Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Finite Lived Intangible Assets [Line Items]
Gross Book Value	$ 5,908	$ 5,874
Accumulated Amortization	2,945	2,862
Net Book Value	2,963	3,012
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,887	1,887
Accumulated Amortization	822	799
Net Book Value	1,065	1,088
Technology/Technical Know-How
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,614	1,588
Accumulated Amortization	897	872
Net Book Value	717	716
Tradenames
Finite Lived Intangible Assets [Line Items]
Gross Book Value	795	795
Accumulated Amortization	308	299
Net Book Value	487	496
Other
Finite Lived Intangible Assets [Line Items]
Gross Book Value	1,612	1,604
Accumulated Amortization	918	892
Net Book Value	$ 694	$ 712