[Line Items] for Disclosure Of Associates And Joint Ventures [Table]

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- Definition

Gain (Loss) on Disposition of Business

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- Definition

Ownership and Voting Interest Held In Associate And Joint Venture

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No definition available.

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- Definition

Costs associated with the disposition of interest in a business operation.

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No definition available.

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- Definition

The amount of income taxes payable (recoverable) in respect of the taxable profit (tax loss) for a period.

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- Definition

The increase (decrease) in equity resulting from transfers between a revaluation surplus and retained earnings. [Refer: Retained earnings; Revaluation surplus]

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- Definition

The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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- Definition

The cash inflow from sales of investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

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- Definition

The amount of reclassification adjustments related to exchange differences when the financial statements of foreign operations are translated, net of tax. Reclassification adjustments are amounts reclassified to profit (loss) in the current period that were recognised in other comprehensive income in the current or previous periods. [Refer: Other comprehensive income]

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DISPOSITION OF CHILEAN ELECTRICITY TRANSMISSION OPERATION - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
	Mar. 15, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Disclosure Of Associates And Joint Ventures [Line Items]
Proceeds from sales of investments accounted for using equity method		$ 0		$ 0	$ 1,289	$ 0
Investments accounted for using equity method		4,407			4,407		$ 5,572	$ 4,727
Gain (Loss) on Disposition of Business		0		0	338	0
Current tax expense (income)		46		$ 38	216	$ 50
Chilean electricity transmission operation [Member]
Disclosure Of Associates And Joint Ventures [Line Items]
Ownership and Voting Interest Held In Associate And Joint Venture	27.80%
Proceeds from sales of investments accounted for using equity method	$ 1,300
Investments accounted for using equity method	$ 951	$ 0			0		$ 930
Gain (Loss) on Disposition of Business			$ 338
Transaction Related Costs			11
Current tax expense (income)			129		$ 127
Increase (decrease) through transfer between revaluation surplus and retained earnings, equity			641
Reclassification adjustments on exchange differences on translation, net of tax			$ 35