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Income Tax Expense - Summary of Income Tax Recognised in Other Comprehensive Income (Detail) - USD ($) $ in Millions | 12 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2018
Available for sale investments: |  |  |
Net valuation gains on investments taken to equity |  |  | $ (3)
Cash flow hedges: |  |  |
Gains/(losses) taken to equity | $ 94 | $ 98 | (25)
(Gains)/losses transferred to the income statement | (89) | (90) | 64
Income tax credit relating to items that may be reclassified subsequently to the income statement | 5 | 8 | 36
Items that will not be reclassified to the income statement: |  |  |
Remeasurement gains/(losses) on pension and medical schemes | 25 | 7 | (22)
Others | 1 | 12 | 8
Income tax credit/(charge) relating to items that will not be reclassified to the income statement | 26 | 19 | (14)
Total income tax credit relating to components of other comprehensive income | $ 31 | $ 27 | $ 22

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- Definition Income tax relating to valuation on available for sale financial assets taken to equity. + References No definition available. + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_90&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income that will be reclassified to profit or loss. [Refer: Income tax relating to components of other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 91 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_91&doctype=Standard -URIDate 2019-03-27 + Details
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