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DEBT - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Oct. 16, 2019
Revolving credit facility      
Line of Credit Facility [Line Items]      
Credit facility maximum borrowing capacity $ 2,000,000,000.0    
Credit facility borrowing base 580,000,000.0    
Debt outstanding 57,000,000.0    
Credit facility remaining borrowing capacity $ 523,000,000.0    
Weighted average interest rate 1.88% 3.32%  
5.375 % Senior Notes due 2027 | Senior Notes      
Line of Credit Facility [Line Items]      
Debt instrument, interest rate, stated percentage 5.375%   5.375%
Debt instrument, face amount $ 479,900,000