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Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2020 | Jun. 30, 2019
Disclosure of detailed information about intangible assets [line items] |  |
Additional recognition, goodwill | $ 14 | $ 307
Intangible assets other than goodwill [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Assets classified as assets held for sale | $ 150 | $ 0

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- Definition The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2019-01-01 -Paragraph B67 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B -URIDate 2019-03-27 + Details
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Balance Type: | debit
Period Type: | duration

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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. + Details
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- Definition The decrease in intangible assets and goodwill resulting from disposals. [Refer: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2019-01-01 -Paragraph 118 -Subparagraph e -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_ii&doctype=Standard -URIDate 2019-03-27 + Details
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Balance Type: | credit
Period Type: | duration

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- Details
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