Percentage of equity interest in business disposed.

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[Line Items] for Income Tax Disclosures [Table]

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No definition available.

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- Definition

Tax on gain (loss) on disposition of business

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No definition available.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The cash inflow associated with the amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 20, 2018
Income Tax Disclosures [Line Items]
One-time Transition Tax Rate	$ (130)		$ (146)			$ (302)	$ (509)
Gain (Loss) on Disposition of Business	$ (16)		$ 21			$ (9)	$ (856)
Effective Income Tax Rate Reconciliation, Percent	31.00%		44.00%			34.00%	30.00%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent						21.00%
Proceeds from Divestiture of Businesses and Interests in Affiliates						$ 226	$ 1,796
Unrecognized Tax Benefits, Decrease Resulting from Foreign Currency Translation	$ 11		$ 16			$ 17	$ 38
Electrica Santiago (Gener ESSA) [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Income Tax Disclosures [Line Items]
Gain (Loss) on Disposition of Business				$ 70
Tax on gain (loss) on disposition of business			25
Proceeds from Divestiture of Businesses and Interests in Affiliates				$ 287
Masinloc Subsidiary [Member] \| Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Income Tax Disclosures [Line Items]
Gain (Loss) on Disposition of Business					$ 773
Tax on gain (loss) on disposition of business					155
Proceeds from Divestiture of Businesses and Interests in Affiliates					$ 1,050
Masinloc Subsidiary [Member]
Income Tax Disclosures [Line Items]
Disposal Group Not Discontinued Operation Ownership Interest Sold								51.00%
Change in Accounting Estimate, Type [Domain] \| UNITED STATES
Income Tax Disclosures [Line Items]
One-time Transition Tax Rate		$ (3)	$ (33)