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Net Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Earnings Per Share [Abstract]        
Net earnings attributable to common stockholders $ 164 $ 438 $ 1,251 $ 2,486
Basic earnings per common share:        
Weighted-average common shares outstanding 192.4 200.2 194.4 205.6
Net earnings attributable to common stockholders (in dollars per share) $ 0.85 $ 2.19 $ 6.44 $ 12.09
Diluted earnings per common share:        
Weighted-average common shares outstanding 192.4 200.2 194.4 205.6
Dilutive common shares—stock options (in shares) 0.5 0.7 0.5 0.9
Diluted weighted-average common shares outstanding 192.9 200.9 194.9 206.5
Net earnings attributable to common stockholders diluted (in dollars per share) $ 0.85 $ 2.18 $ 6.42 $ 12.04
Antidilutive securities excluded from computation of EPS (in shares) 0.0 0.0 0.0 0.0