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Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]    
Gross Book Value $ 5,483 $ 9,676
Accumulated Amortization 1,861 2,587
Net Book Value 3,622 7,089
Customer Relationships    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,751 3,779
Accumulated Amortization 458 868
Net Book Value 1,293 2,911
Technology/Technical Know-How    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,387 2,498
Accumulated Amortization 538 779
Net Book Value 849 1,719
Tradenames    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 770 1,885
Accumulated Amortization 153 264
Net Book Value 617 1,621
Other    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,575 1,514
Accumulated Amortization 712 676
Net Book Value $ 863 $ 838