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Net Income (Loss) Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2023
Sep. 30, 2022
Numerator:                
Net Income (Loss) $ 39 $ (1,769) $ (42) $ 6 $ 130 $ 143 $ (1,772) $ 279
Denominator:                
Shares used in net income (loss) per common share - basic 66.9     61.0     66.8 57.4
Effect of dilutive securities 0.2     0.1     0.0 0.2
Shares used in net income (loss) per common share - diluted 67.1     61.1     66.8 57.6
Net income (loss) per common share:                
Basic $ 0.59     $ 0.09     $ (26.53) $ 4.85
Net income (loss) per common share:                
Diluted $ 0.58     $ 0.09     $ (26.53) $ 4.84