Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets, Net (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Total carrying value	$ 9,496	$ 9,234
Total accumulated amortization	(3,313)	(2,789)
Other Intangible Assets, Net	6,183	6,445
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Total carrying value	7,192	7,004
Total accumulated amortization	(2,102)	(1,765)
Technological know-how
Finite-Lived Intangible Assets [Line Items]
Total carrying value	1,996	1,937
Total accumulated amortization	(1,038)	(875)
Trade names & patents
Finite-Lived Intangible Assets [Line Items]
Total carrying value	284	268
Total accumulated amortization	(152)	(128)
Other
Finite-Lived Intangible Assets [Line Items]
Total carrying value	24	25
Total accumulated amortization	$ (21)	$ (21)