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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

X

- 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

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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.

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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

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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
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-Number 19
-IssueDate 2023-01-01
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-URIDate 2023-03-23

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