v3.26.1
Capital Stock - Changes in Issued and Outstanding Common Shares (Details) - USD ($)
$ in Millions
 3 Months Ended
May 31, 2026
May 31, 2025
Common Stock [Roll Forward]    
Capital stock outstanding, Shares, Beginning Balance 587,431,120  
Stock Repurchased During Period, Shares (2,600,000)  
Capital stock outstanding, Shares, Ending Balance 586,061,407  
Common Stock, Amount [Roll Forward]    
Stock-based compensation $ 6.5 $ 5.7
Employee share purchase plan $ 1.3 1.2
Capital Stock and Additional Paid-in Capital    
Common Stock [Roll Forward]    
Capital stock outstanding, Shares, Beginning Balance 587,431,000  
Exercise of stock options 0  
Common shares issued for restricted share unit settlements 817,000  
Common shares issued for employee share purchase plan 400,000  
Stock Repurchased During Period, Shares (2,587,000)  
Capital stock outstanding, Shares, Ending Balance 586,061,000  
Common Stock, Amount [Roll Forward]    
Common Stock, Value, Outstanding $ 2,924.4  
Stock-based compensation 6.5 5.7
Employee share purchase plan 1.3 $ 1.2
Treasury stock - shares repurchase (12.9)  
Common Stock, Value, Outstanding $ 2,919.3