XML 125 R80.htm IDEA: XBRL DOCUMENT v3.19.3
Long-Term Debt (8.625% Senior Secured Notes, Due 2024 Narrative) (Details) - USD ($)
9 Months Ended
Jul. 06, 2018
Jun. 22, 2018
Sep. 30, 2019
Sep. 30, 2018
Debt Instrument [Line Items]        
Issuance of long-term debt     $ 2,489,000,000 $ 1,033,000,000
Minimum number of days prior to maturity     60 days  
Senior Secured Notes [Member] | Senior Secured Notes at 8.625, Due 2024 [Member]        
Debt Instrument [Line Items]        
Debt instrument, offering date     Jul. 06, 2018  
Debt instrument aggregate principal amount $ 1,033,000,000      
Debt instrument stated interest rate 8.625%      
Maximum principal redeemable using proceeds from a public equity offering, as a percentage of principal amount 40.00%      
Debt instrument redemption price percentage 108.625%      
Debt Instrument, Redemption, Period One [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 8.625, Due 2024 [Member]        
Debt Instrument [Line Items]        
Debt instrument redemption price percentage     100.00%  
Debt instrument redemption description     plus a "make-whole" premium, as described in the indenture governing the 8⅝% Senior Secured Notes.  
Debt Instrument, Redemption, Period Two [Member]        
Debt Instrument [Line Items]        
Minimum period notice for redemption of debt   15 days    
Maximum period notice for redemption of debt   60 days    
Debt Instrument, Redemption, Period Two [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 8.625, Due 2024 [Member]        
Debt Instrument [Line Items]        
Minimum period notice for redemption of debt     15 days  
Maximum period notice for redemption of debt     60 days