Redeemable Non-controlling Interests - Reconciliation of Redeemable Non-controlling Interest (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] | |||
| Beginning balance | $ 22 | $ 0 | $ 658 |
| Acquisition of redeemable non-controlling interest | 0 | 20 | 0 |
| Purchase of subsidiary shares at fair value | 0 | 0 | (7) |
| Net income (loss) attributable to non-controlling interests | 1 | 3 | (23) |
| Fair value adjustments | 3 | 0 | 849 |
| Currency translation adjustments | (2) | 0 | (89) |
| Other | 6 | (1) | (7) |
| Transfer to non-redeemable non-controlling interest | 0 | 0 | (1,381) |
| Ending balance | $ 30 | $ 22 | $ 0 |
| X | ||||||||||
- Definition Amount of currency translation and other items attributable to noncontrolling interests. No definition available.
|
| X | ||||||||||
- Definition Change in noncontrolling interest during the period as a result of a change in the redemption value of redeemable noncontrolling interest, including amounts recorded to stockholders equity as well as the income statement. No definition available.
|
| X | ||||||||||
- Definition Noncontrolling Interest, Decrease from Transfer to Non-redeemable Noncontrolling Interest No definition available.
|
| X | ||||||||||
- Definition Decrease in redeemable noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). No definition available.
|
| X | ||||||||||
- Definition Redeemable Noncontrolling Interest, Equity, Other Increase (Decrease) No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of Net Income (Loss) attributable to redeemable noncontrolling interest. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of increase in noncontrolling interest from a business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|