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Employee Benefits - Additional Information (Detail) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Disclosure of defined benefit plans [line items] |  |  |
Number of defined benefit plans | 82 |  |
Present value of funded obligations | $ 6,791 | $ 7,703 |
Employee benefit net | 2,256 | 2,964 |
Fair value of the plan assets | 268 |  |
Actual return on plans assets resulting to gain (losses) | $ 334 | $ 500 |
Weighted average duration of the benefit benefit obligation | 13 years 8 months 12 days | 13 years 10 months 24 days |
Defined Benefit Plan [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Defined contribution plans | $ 147 | $ 91 | $ 101
Fair value of the plan assets | $ 1,018 |  |
Retirement or Leaving Service Plans [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Number of defined benefit plans | 61 |  |
Medical Cost Plans [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Number of defined benefit plans | 17 |  |
Medical Cost Plans [Member] | Brazil [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Present value of funded obligations | $ 96 |  |
Other Long Term Employee Benefit Plans [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Number of defined benefit plans | 4 |  |
Active Employees [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Present value of funded obligations | $ 1,600 |  |
Deferred [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Present value of funded obligations | 1,700 |  |
Members in Retirement [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Present value of funded obligations | 4,200 |  |
Funded Defined Benefit Plans [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Expected contribution towards defined benefit plans | 192 |  |
Unfunded Defined Benefit Plans And Post Retirement Medical Plans [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Expected contribution towards defined benefit plans | $ 68 |  |

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- Definition Increase decrease in fair value of plan assets. + References No definition available. + Details
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- Definition Number of postemployment benefit defined benefit plans. + References No definition available. + Details
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- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from actuarial gains (losses) arising from changes in demographic assumptions that result in remeasurements of the net defined benefit liability (asset). Demographic assumptions deal with matters such as: (a) mortality; (b) rates of employee turnover, disability and early retirement; (c) the proportion of plan members with dependants who will be eligible for benefits; (d) the proportion of plan members who will select each form of payment option available under the plan terms; and (e) claim rates under medical plans. [Refer: Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 141 -Subparagraph c -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_141_c_ii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_57_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 147 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_147_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 148 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_148_d_iii&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 140 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_140_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2021-01-01 -Paragraph 53 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2021-en-r&anchor=para_53&doctype=Standard -URIDate 2021-03-24 + Details
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