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DEBT - Narrative (Details) - USD ($)
1 Months Ended
Aug. 31, 2020
Mar. 31, 2021
Jun. 30, 2020
Revolving Credit Facility Expiring October2023      
Debt      
Repayments of lines of credit $ 750,000,000    
Line of credit facility, maximum borrowing capacity     $ 1,500,000,000
1.950% Senior Notes due March 15, 2031 ("2031 Senior Notes")      
Debt      
Aggregate principal amount   $ 600,000,000  
Interest rate, stated percentage   1.95%  
1.70% Senior Notes, due May 10, 2021 ("2021 Senior Notes")      
Debt      
Interest rate, stated percentage   1.70%