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Net Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2023
Earnings Per Share [Abstract]  
Summary of net earnings per share
Net earnings per share were computed as follows:
 Three months ended 
 March 31,
 20232022
 (in millions, except per share amounts)
Net earnings attributable to common stockholders$560 $883 
Basic earnings per common share:  
Weighted-average common shares outstanding196.2 208.6 
Net earnings attributable to common stockholders$2.86 $4.23 
Diluted earnings per common share:  
Weighted-average common shares outstanding196.2 208.6 
Dilutive common shares—stock-based awards0.7 1.3 
Diluted weighted-average common shares outstanding196.9 209.9 
Net earnings attributable to common stockholders$2.85 $4.21