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Segment Information - Reconciliation to Net Income Attributable to Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Reconciliation to Net Income Attributable to Noncontrolling Interests [Line Items]
Net income attributable to noncontrolling interests and Predecessor	$ 2	$ 37
Operating Segments
Reconciliation to Net Income Attributable to Noncontrolling Interests [Line Items]
Segment portion attributable to noncontrolling interests and Predecessor	45	89
Segment Reconciling Items
Reconciliation to Net Income Attributable to Noncontrolling Interests [Line Items]
Portion of noncontrolling interests and Predecessor related to items below segment income from operations	(19)	(36)
Portion of operating income attributable to noncontrolling interests of unconsolidated affiliates	$ (24)	$ (16)

X

- Definition

Amount of operating income or loss attributable to the reportable segments for the period that is attributable to the non-controlling partners of the entity's less than wholly-owned subsidiaries and the Predecessor entity.

+ References

No definition available.

+ Details

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X

- Definition

Amount of Net Income (Loss) attributable to noncontrolling interest and Predecessor.

+ References

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X

- Definition

Portion of NCI and Predecessor related to items below segment operating income

+ References

No definition available.

+ Details

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- Definition

Portion of operating income attributable to NCI of unconsolidated affiliates

+ References

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X

- Definition

[Line Items] for Reconciliation to Net Income Attributable to Noncontrolling Interests [Table]

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