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Business Combinations - Acquisition of Canom Narrative (Details) - Cancom Ltd. € in Millions	Jul. 29, 2021 EUR (€)
Disclosure of detailed information about business combination [line items]
Percentage of voting equity interests acquired	100.00%
Payment obligations cancelled	€ 122
Loss of acquiree since acquisition date	€ 4

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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.

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The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

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The profit (loss) of the acquiree, since the acquisition date, included in the consolidated statement of comprehensive income. [Refer: Profit (loss)]

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Business combination, payments to cancel accounts payable

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