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Net Earnings Per Share
 3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
Net Earnings Per Share
Net earnings per share were computed as follows:
 Three months ended 
 March 31,
 20252024
 (in millions, except per share amounts)
Net earnings attributable to common stockholders$312 $194 
Basic earnings per common share:  
Weighted-average common shares outstanding168.6 187.6 
Net earnings attributable to common stockholders$1.85 $1.03 
Diluted earnings per common share:  
Weighted-average common shares outstanding168.6 187.6 
Dilutive common shares—stock-based awards0.2 0.5 
Diluted weighted-average common shares outstanding168.8 188.1 
Net earnings attributable to common stockholders$1.85 $1.03 
Diluted earnings per common share is calculated using weighted-average common shares outstanding, including the dilutive effect of stock-based awards as determined under the treasury stock method. In the computation of diluted earnings per common share, potentially dilutive stock-based awards are excluded if the effect of their inclusion is anti-dilutive. Shares for anti-dilutive stock-based awards not included in the computation of diluted earnings per common share were zero in both the three months ended March 31, 2025 and 2024.