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Additional disclosure items G.3.1. Litigation and legal risks (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 17, 2024	Dec. 31, 2023
Disclosure of contingent liabilities [line items]
Legal proceedings provision	$ 104		$ 14
Breach of contract claim filed by Telefónica
Disclosure of contingent liabilities [line items]
Legal proceedings provision		$ 88
Total for all joint ventures
Disclosure of contingent liabilities [line items]
Legal proceedings provision	1		1
Legal proceedings contingent liability
Disclosure of contingent liabilities [line items]
Estimated financial effect of contingent liabilities	209		328
Legal proceedings contingent liability | Total for all joint ventures
Disclosure of contingent liabilities [line items]
Estimated financial effect of contingent liabilities	$ 8		$ 9

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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.

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- Definition

The amount of the estimated financial effect of contingent liabilities. [Refer: Classes of contingent liabilities [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2024-01-01
-Paragraph 86
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-URIDate 2024-03-27

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- Definition

The amount of provision for legal proceedings. [Refer: Other provisions]

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