Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2019 |
Sep. 30, 2018 |
Sep. 30, 2019 |
Sep. 30, 2018 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Foreign currency translation, tax impact | $ 0 | $ 0 | $ 0 | $ 0 |
| Cash flow hedges, tax impact | (1) | (2) | (7) | (1) |
| Reclassifications to net loss, tax impact (less than) | 1 | 1 | 1 | 1 |
| Equity method investee, tax impact | (1) | (1) | (2) | (1) |
| Comprehensive loss attributable to noncontrolling interests, tax impact (less than) | $ 1 | $ 1 | $ 1 | $ 1 |