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Pensions and Post-Employment Benefits - Aggregate Projected Benefit Obligation for Pension Plans and Other Post-employment Benefits and the Plan Assets by Country (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Disclosure of fair value of plan assets [line items] |  |  |
PBO | $ 2,010 | $ 1,903 | $ 2,783
Assets | 1,275 | 1,208 | $ 1,784
Deficit | 735 | 695 |
Mexico [member] |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
PBO | 253 | 220 |
Assets | 44 | 25 |
Deficit | 209 | 195 |
United States [member] |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
PBO | 184 | 194 |
Assets | 188 | 166 |
Deficit | (4) | 28 |
United Kingdom [member] |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
PBO | 1,129 | 1,062 |
Assets | 821 | 791 |
Deficit | 308 | 271 |
Germany [member] |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
PBO | 141 | 134 |
Assets | 6 | 6 |
Deficit | 135 | 128 |
Other countries [member] |  |  |
Disclosure of fair value of plan assets [line items] |  |  |
PBO | 303 | 293 |
Assets | 216 | 220 |
Deficit | $ 87 | $ 73 |

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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 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Details
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