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Intangible Assets - Schedule of Intangible Assets by Major Class (Detail) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]    
Gross Book Value $ 5,470 $ 9,676
Accumulated Amortization 1,797 2,587
Net Book Value 3,673 7,089
Customer Relationships    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,758 3,779
Accumulated Amortization 442 868
Net Book Value 1,316 2,911
Technology/Technical Know-How    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,387 2,498
Accumulated Amortization 512 779
Net Book Value 875 1,719
Tradenames    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 772 1,885
Accumulated Amortization 146 264
Net Book Value 626 1,621
Other    
Finite Lived Intangible Assets [Line Items]    
Gross Book Value 1,553 1,514
Accumulated Amortization 697 676
Net Book Value $ 856 $ 838