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Earnings Per Share - Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Earnings Per Share [Abstract]    
Net income $ 53 $ 466
Dividend equivalent payments, basic (1) (1)
Dividend equivalent payments, diluted (1) 0
Income available to common stockholders, basic 52 465
Income available to common stockholders, diluted $ 52 $ 466
Weighted-average shares outstanding (in shares) 225.8 227.7
Dilutive effect of outstanding options and share-settled awards (in shares) 0.4 0.6
Adjusted weighted-average shares outstanding (in shares) 226.2 228.3
Basic (in dollars per share) $ 0.23 $ 2.04
Diluted (in dollars per share) $ 0.23 $ 2.04