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Share Capital - Additional Information (Detail) $ in Millions | 6 Months Ended
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Dec. 31, 2018 USD ($)
Disclosure of classes of share capital [abstract] |
Off-market buy-back program | $ 5,220

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- Definition The cash outflow to acquire or redeem entity's shares. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_17_b&doctype=Standard -URIDate 2018-03-16 + Details
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