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Earnings (Loss) per Share - Schedule of Earnings per Share (Detail) - USD ($)
shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]      
Net income (loss) used for the computation of basic and diluted earnings (loss) per share $ 417 $ (3,990) $ (999)
Weighted average number of shares used in the computation of basic earnings (loss) per share 1,102 1,095 1,091
Weighted average number of shares used in the computation of diluted earnings (loss) per share 1,107 1,095 1,091