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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Income Tax Disclosure [Abstract]    
Decrease in unrecognized tax benefits within the next twelve months $ 140  
Increase in unrecognized tax benefits within the next twelve months 20  
Amount of potential additional income tax expense related to an IRS notice of proposed adjustment subject to interest and penalties. $ 370  
Effective tax rate 27.80% 9.80%
U.S. corporate income tax rate 21.00%