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Investments Accounted for Using the Equity Method - Summary of Movements of Investments Accounted for using the Equity Method (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Disclosure of significant investments in associates and joint ventures [Line Items]
At the beginning of the financial year	$ 2,448	$ 2,575
Profit/(loss) from equity accounted investments, related impairments and expenses	147	272	$ (2,104)
Investment in equity accounted investments	142
Dividends received from equity accounted investments	(693)
Other	429
At the end of the financial year	2,473	2,448	$ 2,575
Joint ventures [member]
Disclosure of significant investments in associates and joint ventures [Line Items]
Profit/(loss) from equity accounted investments, related impairments and expenses	(509)
Investment in equity accounted investments	80
Other	429
Associates [member]
Disclosure of significant investments in associates and joint ventures [Line Items]
At the beginning of the financial year	2,448
Profit/(loss) from equity accounted investments, related impairments and expenses	656
Investment in equity accounted investments	62
Dividends received from equity accounted investments	(693)
At the end of the financial year	$ 2,473	$ 2,448

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- Definition

Disclosure of significant investments in associates and joint ventures.

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Other changes in associates and joint ventures accounted for using equity method.

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- Definition

The entity's share of profit (loss) from associates and joint ventures accounted for using the equity method and related impairments and expenses.

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- Definition

The cash inflow representing dividends received from investments that are accounted for using the equity method, classified as investing activities. [Refer: Investments accounted for using equity method; Dividends received]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2017-01-01
-Paragraph 16
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16&doctype=Standard
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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]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2017-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

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