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Intangible Assets - Summary of Carrying Amount of Intangible Assets with Indefinite Useful Lives (Detail) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | $ 40,430 | $ 41,527
Intangible assets with indefinite useful lives [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 38,320 | 39,395
Intangible assets with indefinite useful lives [member] | United States [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 22,129 | 22,172
Intangible assets with indefinite useful lives [member] | Rest of North America [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 42 | 42
Intangible assets with indefinite useful lives [member] | Mexico [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 2,977 | 3,067
Intangible assets with indefinite useful lives [member] | Colombia [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 2,870 | 3,320
Intangible assets with indefinite useful lives [member] | Rest of Middle Americas [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 3,432 | 3,655
Intangible assets with indefinite useful lives [member] | Brazil [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 0 | 1
Intangible assets with indefinite useful lives [member] | Rest of South America [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 724 | 681
Intangible assets with indefinite useful lives [member] | Europe [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 452 | 461
Intangible assets with indefinite useful lives [member] | South Africa [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 3,029 | 3,289
Intangible assets with indefinite useful lives [member] | Rest of Africa [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 1,112 | 1,068
Intangible assets with indefinite useful lives [member] | China [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | 440 | 427
Intangible assets with indefinite useful lives [member] | Rest of Asia Pacific [member] |  |
Disclosure of intangible assets with indefinite useful life [line items] |  |
Intangible assets | $ 1,113 | $ 1,212

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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_c&doctype=Standard -URIDate 2021-03-24 + Details
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