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Financial Instruments - Summary of Fair Value of Derivative Financial Instruments at Fair Value Hierarchy (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure Of Financial Assets and Financial Liabilities [line items] |  |
Derivative instruments | $ 22 | $ 3
Investments in strategic equity securities | 14 | 23
Other investments at fair value through earnings | 3 | 3
Total derivative financial assets | 39 | 29
Liabilities measured at fair value Derivative instruments | 30 | 53
Level 1 [Member] |  |
Disclosure Of Financial Assets and Financial Liabilities [line items] |  |
Investments in strategic equity securities | 14 | 23
Total derivative financial assets | 14 | 23
Level 2 [Member] |  |
Disclosure Of Financial Assets and Financial Liabilities [line items] |  |
Derivative instruments | 22 | 3
Other investments at fair value through earnings | 3 | 3
Total derivative financial assets | 25 | 6
Liabilities measured at fair value Derivative instruments | $ 30 | $ 53

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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of non-current derivative financial assets. [Refer: Derivative financial assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
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