v3.26.3
Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Finite Lived Intangible Assets [Line Items]    
Gross Book Value $ 8,389 $ 8,122
Accumulated Amortization 3,462 3,134
Net Book Value 4,927 4,988
Customer relationships    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 2,780 2,783
Accumulated Amortization 938 849
Net Book Value 1,842 1,934
Technology/technical know-how    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 2,900 2,635
Accumulated Amortization 1,119 998
Net Book Value 1,781 1,637
Trade names    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,066 1,067
Accumulated Amortization 321 283
Net Book Value 745 784
Other    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,643 1,637
Accumulated Amortization 1,084 1,004
Net Book Value $ 559 $ 633