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Earnings (Loss) per Common Share - Schedule of Earnings (Loss) per Common Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Numerator:        
Net income $ 105 $ 173 $ 540 $ 728
Denominator:        
Weighted average shares used to compute basic EPS 139 165 145 174
Effect of dilutive securities:        
Dilutive effect of stock options, restricted stock, restricted stock units, performance stock units, and Employee Stock Purchase Plan ("ESPP") 2 2 2 2
Dilutive potential common shares 2 2 2 2
Weighted average shares used to compute diluted EPS 141 167 147 176
Basic earnings per common share $ 0.75 $ 1.05 $ 3.71 $ 4.20
Diluted earnings per common share $ 0.75 $ 1.04 $ 3.67 $ 4.15