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STOCKHOLDERS' EQUITY Narrative (Details) - USD ($)
$ / shares in Units, shares in Millions
6 Months Ended
Dec. 10, 2019
Nov. 30, 2019
Nov. 30, 2018
Sep. 11, 2019
Stock Repurchases [Abstract]        
Amount available for future repurchases   $ 10,800,000,000    
Repurchases of common stock (in shares)   181.0 415.3  
Repurchased amount   $ 10,000,000,000.0 $ 20,000,000,000.0  
Repurchased shares that were not settled (in shares)   0.8    
Repurchased amount that was not settled   $ 44,000,000    
Approved expansion of stock repurchase program       $ 15,000,000,000.0
Stock-Based Compensation Expense and Stock Awards [Abstract]        
Restricted stock-based units granted (in shares)   41.0    
Forfeitures and cancellations (in shares)   11.0    
Subsequent Event [Member]        
Dividends on Common Stock [Abstract]        
Dividends declared per share of outstanding common stock (in dollars per share) $ 0.24      
Dividend payable date Jan. 23, 2020      
Dividend record date Jan. 09, 2020