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Subsequent Events (Details) - USD ($)
$ in Billions
Jul. 01, 2020
Dec. 31, 2019
Subsequent Event [Line Items]    
Percentage of principal amount at which notes may be required to be repurchased in event of change of control   101.00%
Senior Notes7.375 Percent Due2028 [Member] | Subsequent event    
Subsequent Event [Line Items]    
Interest rate (as a percent) 7.375%  
Principal amount of debt $ 1.0  
Redemption price as a percentage of principal amount 100.00%  
Percentage of principal amount at which notes may be required to be repurchased in event of change of control 101.00%  
Senior Notes7.375 Percent Due2028 [Member] | Subsequent event | Maximum    
Subsequent Event [Line Items]    
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed 35.00%