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Net Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Summary of net earnings per share
Net earnings per share were computed as follows:
 Year ended December 31,
 202420232022
 (in millions, except per share amounts)
Net earnings attributable to common stockholders$1,218 $1,525 $3,346 
Basic earnings per common share:
Weighted-average common shares outstanding180.4 193.3 203.3 
Net earnings attributable to common stockholders$6.75 $7.89 $16.45 
Diluted earnings per common share:
Weighted-average common shares outstanding180.4 193.3 203.3 
Dilutive common shares—stock-based awards0.3 0.5 0.9 
Diluted weighted-average common shares outstanding180.7 193.8 204.2 
Net earnings attributable to common stockholders$6.74 $7.87 $16.38