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Capital structure and financing - C.7.4. Call and put options (Details) $ in Millions, $ in Billions	Jul. 31, 2024	Oct. 12, 2023 USD ($)	Oct. 12, 2023 COP ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Disclosure of detailed information about business combination [line items]
Put option liability				$ 0	$ 79	$ 86
Tigo-UNE
Disclosure of detailed information about business combination [line items]
Proportion of voting rights held in joint venture	50.00%	50.00%	50.00%
Other cash payments to acquire interests in joint ventures, classified as investing activities		$ 74	$ 300
Undiscounted cash outflow required to repurchase derecognised financial assets			$ 330

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The cash outflow to acquire interests in joint ventures (other than payments for those instruments considered to be cash equivalents or those held for dealing or trading purposes), classified as investing activities. [Refer: Total for all joint ventures [member]]

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The proportion of the voting rights in a joint venture held by the entity. [Refer: Total for all joint ventures [member]]

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