XML 112 R98.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value of Financial Instruments (Schedule of Estimated Fair Value of Financial Instruments, by Balance Sheet Grouping) (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Assets:    
Investments in equity securities $ 137  
Available-for-sale securities 93 $ 252
Trading securities 11 37
Liabilities:    
Contingent value right   2
Carrying Amount [Member]    
Assets:    
Cash and cash equivalents 196 563
Investments in equity securities 137  
Available-for-sale securities 93 252
Trading securities 11 37
Liabilities:    
Contingent value right   2
Carrying Amount [Member] | Junior-Priority Secured Notes due 2023 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,750  
Carrying Amount [Member] | Junior-Priority Secured Notes due 2024 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,338  
Carrying Amount [Member] | Senior Secured Notes at 8.625, Due 2024 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,021  
Carrying Amount [Member] | Credit Facility, Type of Debt [Member] | Credit Facility, Name [Member]    
Liabilities:    
Credit Facility, Fair Value Disclosure 1,602 2,902
Carrying Amount [Member] | Senior Notes [Member] | Senior Notes at 8.0, Due 2019 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 155 1,922
Carrying Amount [Member] | Senior Notes [Member] | Senior Notes at 7.125, Due 2020 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 121 1,192
Carrying Amount [Member] | Senior Notes [Member] | Senior Notes at 6.875, Due 2022 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 2,593 2,943
Carrying Amount [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 5.125, Due 2021 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 984 978
Carrying Amount [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 6.25, Due 2023 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 3,067 3,061
Carrying Amount [Member] | Receivables Facility and Other Debt, Type [Member] | ABL Facility and Other Debt [Member]    
Liabilities:    
Other Liabilities, Fair Value Disclosure 734 611
Estimated Fair Value [Member]    
Assets:    
Cash and cash equivalents 196 563
Investments in equity securities 137  
Available-for-sale securities 93 252
Trading securities 11 37
Liabilities:    
Contingent value right   2
Estimated Fair Value [Member] | Junior-Priority Secured Notes due 2023 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,380  
Estimated Fair Value [Member] | Junior-Priority Secured Notes due 2024 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 976  
Estimated Fair Value [Member] | Senior Secured Notes at 8.625, Due 2024 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,025  
Estimated Fair Value [Member] | Credit Facility, Type of Debt [Member] | Credit Facility, Name [Member]    
Liabilities:    
Credit Facility, Fair Value Disclosure 1,564 2,826
Estimated Fair Value [Member] | Senior Notes [Member] | Senior Notes at 8.0, Due 2019 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 146 1,637
Estimated Fair Value [Member] | Senior Notes [Member] | Senior Notes at 7.125, Due 2020 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 100 897
Estimated Fair Value [Member] | Senior Notes [Member] | Senior Notes at 6.875, Due 2022 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 1,175 1,729
Estimated Fair Value [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 5.125, Due 2021 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 934 902
Estimated Fair Value [Member] | Senior Secured Notes [Member] | Senior Secured Notes at 6.25, Due 2023 [Member]    
Liabilities:    
Notes Payable, Fair Value Disclosure 2,819 2,800
Estimated Fair Value [Member] | Receivables Facility and Other Debt, Type [Member] | ABL Facility and Other Debt [Member]    
Liabilities:    
Other Liabilities, Fair Value Disclosure $ 734 $ 611