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Net Income (Loss) Per Common Share - Calculations for Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Numerator:        
Net income (loss)—basic and diluted $ 820 $ (99) $ 1,887 $ 660
Denominator:        
Basic weighted-average common shares outstanding (in shares) 156.2 156.9 156.5 157.0
Diluted weighted-average shares 157.7 156.9 157.7 158.2
Earnings (loss) per share:        
Basic (in USD per share) $ 5.25 $ (0.63) $ 12.06 $ 4.20
Diluted (in USD per share) $ 5.20 $ (0.63) $ 11.97 $ 4.17
Number of anti-dilutive stock-based awards (in shares) 0.6 2.4 1.3 1.3
Stock Options        
Denominator:        
Effect of stock-based awards (in shares) 0.9 0.0 0.7 0.7
Nonvested shares        
Denominator:        
Effect of stock-based awards (in shares) 0.6 0.0 0.5 0.5