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.

No definition available.

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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 [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2024-01-01
-Paragraph 140
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-URIDate 2024-03-27

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- Definition

The amount of non-current net defined benefit asset. [Refer: Net defined benefit asset]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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-URIDate 2024-03-27

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- Definition

The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability]

+ References

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Retirement benefits - Summary of Retirement Benefits by Financial Position (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure of net defined benefit liability (asset) [line items]
Net defined benefit liability (asset)	$ 3,251	$ 1,602
Non-current assets	10,003	9,151
Non-current liabilities:	(6,752)	(7,549)
Pensions
Disclosure of net defined benefit liability (asset) [line items]
Non-current liabilities:	(3,874)	(4,448)
OPEB
Disclosure of net defined benefit liability (asset) [line items]
Non-current liabilities:	(2,878)	(3,101)
Obligations
Disclosure of net defined benefit liability (asset) [line items]
Net defined benefit liability (asset)	(66,054)	(78,024)	$ (73,481)
Obligations \| OPEB
Disclosure of net defined benefit liability (asset) [line items]
Net defined benefit liability (asset)	(2,878)	(3,101)	(2,879)
Plan assets
Disclosure of net defined benefit liability (asset) [line items]
Net defined benefit liability (asset)	69,707	79,961	$ 76,756
Asset ceilings
Disclosure of net defined benefit liability (asset) [line items]
Net defined benefit liability (asset)	$ (402)	$ (335)