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Earnings Per Share and Stock Issuances - Common Stock Activity (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
May 31, 2021
May 31, 2020
May 31, 2021
May 31, 2020
Stock Options And Restricted Stock Units        
Employee Stock Purchase Plan [Line Items]        
Shares issued under stock options, RSUs, LTPP and employee stock purchase plans 0.3 0.8 0.5 1.0
Share Repurchase Program        
Employee Stock Purchase Plan [Line Items]        
Shares repurchased under the stock repurchase program and shares withheld for taxes under stock options, RSUs, LTPP and employee stock purchase programs 0.0 0.1 0.1 0.3