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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
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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 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 + Details
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- Details
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