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Other Equity - Summary of Financial Information Relating to Subsidiaries with Non-controlling Interests (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Disclosure of significant subsidiaries [Line Items]
Dividends paid to non-controlling interests	$ 1,582	$ 575	$ 62
Discontinued Operations - Onshore US Cash Generating Units [Member]
Disclosure of significant subsidiaries [Line Items]
Dividends paid to non-controlling interests	$ 22	$ 6

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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- Definition

The cash outflow for dividends paid to non-controlling interests, classified as financing activities. [Refer: Non-controlling interests; Dividends paid to non-controlling interests]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2017-01-01
-Paragraph 17
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_17&doctype=Standard
-URIDate 2017-03-09

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