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Earnings Per Share
 12 Months Ended
Dec. 31, 2024
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The weighted average number of shares outstanding used to compute earnings per common share were as follows (in millions):
202420232022
Weighted average common shares outstanding for basic computations238.3 250.3 263.7 
Weighted average dilutive effect of equity awards0.9 0.9 0.9 
Weighted average common shares outstanding for diluted computations239.2 251.2 264.6 
We compute basic and diluted earnings per common share by dividing net earnings by the respective weighted average number of common shares outstanding for the periods presented. Our calculation of diluted earnings per common share also includes the dilutive effects for the assumed vesting of outstanding restricted stock units (RSUs) and performance stock units (PSUs) based on the treasury stock method. There were no significant anti-dilutive equity awards for the years ended December 31, 2024, 2023 and 2022. Basic and diluted weighted average common shares outstanding decreased in 2024 compared to 2023 due to share repurchases.