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Exceptional Items - Summary of Exceptional Items Related to the US Tax Reform (Detail) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Disclosure of exceptional items [Line Items] |  |  |
Loss before taxation | $ (650) | $ (763) | $ (2,520)
Non-current tax payable | 137 |  |
US tax reform [Member] |  |  |
Disclosure of exceptional items [Line Items] |  |  |
Re-measurement of deferred taxes as a result of reduced US corporate income tax rate | (1,390) |  |
Impairment of foreign tax credits | (834) |  |
Net impact of tax charges on deemed repatriation of accumulated earnings of non-US subsidiaries | (194) |  |
Recognition of Alternative Minimum Tax Credits | 95 |  |
Other impacts | 3 |  |
Loss before taxation | (2,320) |  |
Non-current tax payable | $ (134) |  |

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- Definition Impairment of foreign tax credits. + References No definition available. + Details
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- Definition Net impact of tax charges on deemed repatriation of accumulated earnings of subsidiaries. + References No definition available. + Details
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- Definition Other impacts of tax reforms. + References No definition available. + Details
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- Definition Recognition of alternative minimum tax credits. + References No definition available. + Details
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- Definition Change in net deferred tax assets due to re measurement. + References No definition available. + Details
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- Definition The non-current amount of current tax liabilities. [Refer: Current tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph n -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_n&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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