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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Jun. 30, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Indefinite-lived Intangible Assets [Line Items]          
Goodwill     $ 1,527 $ 1,493 $ 2,807
Intangibles, net     503 527  
Impairment on equity investment $ 224        
Impairment of Intangible Assets, Finite-lived 209        
Impairment of property, plant and equipment 262        
Impairment of right-of-use assets 42   $ 0 42 56
Estimated useful lives of intangible assets, minimum     2 years    
Estimated useful lives of intangible assets, maximum     40 years    
Amortization expense, 2021     $ 40    
Amortization expense, 2022     33    
Amortization expense, 2023     28    
Amortization expense, 2024     25    
Amortization expense, 2025     23    
Impairment charge on goodwill     0 $ 1,295 $ 3,509
Impairment of intangible assets, indefinite-lived (excluding goodwill) $ 83 $ 103 0    
Rig Equipment [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Goodwill     661    
XL Systems [Member]          
Indefinite-lived Intangible Assets [Line Items]          
Goodwill     $ 64