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Income Taxes - Summary of Current and Deferred Income Tax Relative to Items of Other Comprehensive Income Loss (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income tax relating to components of other comprehensive income [abstract] |  |  |
Revenue related to foreign exchange fluctuations from intercompany balances (note 21.2) | $ (19) | $ (19) | $ (2)
Expense (revenue) associated to actuarial results (note 21.2) | (41) | (29) | 31
Revenue related to derivative financial instruments (note 17.4) | 14 | (34) | (3)
Expense (revenue) from foreign currency translation and other effects | (14) | 4 | (38)
Total current and deferred income tax relative to items of other comprehensive income (loss) | $ (60) | $ (78) | $ (12)

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- Definition Income Tax relating to derivative financial instruments. + References No definition available. + Details
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- Definition Income tax relating to foreign exchange fluctuations from intercompany balances. + References No definition available. + Details
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- Definition Income tax relating to tax effects relative to actuarial gains lose. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income in relation to hedges of net investments in foreign operations. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2020-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2020-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_90&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of income tax relating to an entity's share of other comprehensive income of associates and joint ventures accounted for using the equity method. [Refer: Share of other comprehensive income of associates and joint ventures accounted for using equity method, before tax] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_90&doctype=Standard -URIDate 2020-01-01 + Details
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