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Earnings per Share - Narrative (Details) - USD ($)
$ / shares in Units, shares in Thousands
12 Months Ended 21 Months Ended
May 31, 2020
May 31, 2019
May 31, 2018
Jul. 29, 2020
Oct. 29, 2019
Oct. 30, 2018
Aug. 02, 2016
Earnings Per Share, Basic and Diluted [Line Items]              
Basic earnings per share, discontinued operations (dollars per share) $ 0.00 $ 0.02 $ 0.54        
Diluted earnings per share, discontinued operations (dollars per share) $ 0.00 $ 0.02 $ 0.53        
Options granted excluded from the computation of diluted earnings per share (shares) 200 500 800        
Total purchase price of shares repurchased $ 464,518,000 $ 1,016,300,000 $ 127,319,000        
Employee Payroll Taxes Due on Restricted Stock Awards              
Earnings Per Share, Basic and Diluted [Line Items]              
Stock purchased under share buyback (in shares) 300 300 300        
Avg. Price per Share (in dollars per share) $ 260.89 $ 204.50 $ 130.30        
Total purchase price of shares repurchased $ 68,800,000 $ 62,900,000 $ 37,300,000        
Buyback Program, August 2016              
Earnings Per Share, Basic and Diluted [Line Items]              
Share buyback program, authorized amount             $ 500,000,000.0
Stock purchased under share buyback (in shares) 0 2,130 518        
Avg. Price per Share (in dollars per share) $ 0 $ 192.55 $ 173.51        
Total purchase price of shares repurchased $ 0 $ 410,003,000 $ 89,997,000        
Buyback Program, October 2018              
Earnings Per Share, Basic and Diluted [Line Items]              
Share buyback program, authorized amount           $ 1,000,000,000.0  
Stock purchased under share buyback (in shares) 1,607 2,673 0        
Avg. Price per Share (in dollars per share) $ 246.19 $ 203.30 $ 0        
Total purchase price of shares repurchased $ 395,681,000 $ 543,442,000 $ 0        
Buyback Program, October 2019              
Earnings Per Share, Basic and Diluted [Line Items]              
Share buyback program, authorized amount         $ 1,000,000,000.0    
Stock purchased under share buyback (in shares) 0 0 0        
Avg. Price per Share (in dollars per share) $ 0 $ 0 $ 0        
Total purchase price of shares repurchased $ 0 $ 0 $ 0        
Subsequent Event              
Earnings Per Share, Basic and Diluted [Line Items]              
Stock purchased under share buyback (in shares)       4,300      
Avg. Price per Share (in dollars per share)       $ 219.42      
Total purchase price of shares repurchased       $ 939,100,000