Debt (Debt) (Details) - USD ($) $ in Millions |
Mar. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Subtotal | $ 11,053 | $ 11,706 |
| Less: Current maturities | 217 | 1,268 |
| Total long-term debt | 10,836 | 10,438 |
| First Lien Term Loans | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 3,161 | 3,167 |
| Senior Unsecured Notes | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 3,041 | 3,663 |
| First Lien Notes | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 2,407 | 2,835 |
| Project financing, notes payable and other | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 840 | 879 |
| CCFC Term Loan | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 964 | 967 |
| Finance lease obligations | ||
| Debt Instrument [Line Items] | ||
| Subtotal | 68 | 73 |
| Revolving facilities | ||
| Debt Instrument [Line Items] | ||
| Subtotal | $ 572 | $ 122 |