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Pensions and Post-Employment Benefits - Schedule of Reconciliations of the Actuarial Benefits Obligations, Pension Plan Assets, And Liabilities Recognized in the Balance Sheet (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of defined benefit plans [line items] |  |  |
Projected benefit obligation at beginning of the period | $ 2,010 | $ 1,903 |
Service cost | 11 | 10 | $ 11
Interest cost | 105 | 108 |
Actuarial (gains) losses | (158) | 29 |
Reduction from disposal of assets | (17) | 2 |
Settlements and curtailments | 0 | (2) |
Plan amendments | 0 | (11) |
Benefits paid | (170) | (130) |
Foreign currency translation | (77) | 101 |
Projected benefit obligation at end of the period | 1,704 | 2,010 | 1,903
Fair value of plan assets at beginning of the period | 1,275 | 1,208 |
Return on plan assets | 65 | 64 |
Actuarial losses | (84) | (16) |
Employer contributions | 95 | 105 |
Reduction for disposal of assets | (13) | 1 |
Settlements | 0 | (2) |
Benefits paid | (170) | (130) |
Foreign currency translation | (23) | 45 |
Fair value of plan assets at end of the period | 1,145 | 1,275 | 1,208
Net projected liability in the statement of financial position | 559 | 735 |
Pension defined benefit plans [member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Projected benefit obligation at beginning of the period | 1,909 | 1,811 |
Service cost | 7 | 6 | 7
Interest cost | 97 | 100 |
Actuarial (gains) losses | (159) | 30 |
Reduction from disposal of assets | (17) | 2 |
Settlements and curtailments | 0 | (2) |
Plan amendments | 0 | (10) |
Benefits paid | (160) | (122) |
Foreign currency translation | (65) | 94 |
Projected benefit obligation at end of the period | 1,612 | 1,909 | 1,811
Fair value of plan assets at beginning of the period | 1,273 | 1,207 |
Return on plan assets | 65 | 64 |
Actuarial losses | (84) | (16) |
Employer contributions | 85 | 97 |
Reduction for disposal of assets | (13) | 1 |
Settlements | 0 | (2) |
Benefits paid | (160) | (122) |
Foreign currency translation | (22) | 44 |
Fair value of plan assets at end of the period | 1,144 | 1,273 | 1,207
Net projected liability in the statement of financial position | 468 | 636 |
Other Benefits Plans [Member] |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Projected benefit obligation at beginning of the period | 101 | 92 |
Service cost | 4 | 4 | 4
Interest cost | 8 | 8 |
Actuarial (gains) losses | 1 | (1) |
Reduction from disposal of assets | 0 | 0 |
Settlements and curtailments | 0 | 0 |
Plan amendments | 0 | (1) |
Benefits paid | (10) | (8) |
Foreign currency translation | (12) | 7 |
Projected benefit obligation at end of the period | 92 | 101 | 92
Fair value of plan assets at beginning of the period | 2 | 1 |
Return on plan assets | 0 | 0 |
Actuarial losses | 0 | 0 |
Employer contributions | 10 | 8 |
Reduction for disposal of assets | 0 | 0 |
Settlements | 0 | 0 |
Benefits paid | (10) | (8) |
Foreign currency translation | (1) | 1 |
Fair value of plan assets at end of the period | 1 | 2 | $ 1
Net projected liability in the statement of financial position | $ 91 | $ 99 |

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- Definition The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_f&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in the net defined benefit liability (asset) resulting from the passage of time. [Refer: Interest expense; Net defined benefit liability (asset)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets, excluding amounts included in interest income or expense. The return on plan assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [domain]; Increase (decrease) in net defined benefit liability (asset) resulting from interest expense (income)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 141 -Subparagraph c -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_141_c_i&doctype=Standard -URIDate 2024-03-27 + Details
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