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Deferred Tax Assets and Liabilities - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Net deferred tax liabilities | $ 12,204 | $ 12,627
Unrecognized tax attributes amount | 27,900 | $ 27,000
Expiration period 1 [member] |  |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Tax losses carried forward and deductible temporary differences | $ 200 |
Tax losses and deductible temporary differences expiration period | Year 1 |
Expiration period 2 [member] |  |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Tax losses carried forward and deductible temporary differences | $ 300 |
Tax losses and deductible temporary differences expiration period | Year 2 |
Expiration period 3 [member] |  |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Tax losses carried forward and deductible temporary differences | $ 200 |
Tax losses and deductible temporary differences expiration period | Year 3 |
Expiration period more than 3 [member] |  |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Tax losses | $ 24,900 |
Tax losses carried forward and deductible temporary differences | 2,300 |
Changes in tax rates or tax laws enacted or announced [member] |  |
Disclosure Of Components Of Deferred Tax Assets And Liabilities [line items] |  |
Net deferred tax liabilities | $ 6,500 |

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- Definition The amount of deferred tax liabilities net of deferred tax assets, when the absolute amount of deferred tax liabilities is greater than the absolute amount of deferred tax assets. [Refer: Deferred tax assets; Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2021-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of unused tax losses for which no deferred tax asset is recognised in the statement of financial position. [Refer: Unused tax losses [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2021-01-01 -Paragraph 81 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2021-en-r&anchor=para_81_e&doctype=Standard -URIDate 2021-03-24 + Details
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