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Profit/(loss) from discontinued operations service division (Details) - EUR (€) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Profit loss from discontinued operating service division [Line Items] |  |  |  |
Revenue | € 9,147,000,000 | € 9,147,000,000 | € 8,514,000,000 | € 7,551,000,000
Profit (loss) from operating activities |  | 3,109,000,000 | 625,000,000 | 423,000,000
Finance income (cost) |  | 274,000,000 | (230,000,000) | (317,000,000)
Share of profit (loss) of associates accounted for using equity method |  | 238,000,000 | 215,000,000 | 165,000,000
Profit (loss) before tax |  | 3,621,000,000 | 610,000,000 | 271,000,000
Profit (loss) from discontinued operations |  | 14,000,000 | 16,000,000 | 64,000,000
Discontinued operations of the company [Member] | Service division [Member] |  |  |  |
Profit loss from discontinued operating service division [Line Items] |  |  |  |
Revenue |  | 0 | 0 | 2,000,000
Profit (loss) from operating activities |  | 14,000,000 | 28,000,000 | 9,000,000
Finance income (cost) |  | 0 | (15,000,000) | (1,000,000)
Share of profit (loss) of associates accounted for using equity method |  | 0 | 0 | 5,000,000
Profit (loss) before tax |  | 14,000,000 | 13,000,000 | 13,000,000
Income tax expense discontinued operations |  | 0 | (3,000,000) | 10,000,000
Profit loss from discontinued operations before adjustments |  | 14,000,000 | 16,000,000 | 3,000,000
Profit loss from discontinued operations non controlling interests before adjustments |  | 0 | 0 | 0
Profit loss from discontinued operations parent company before adjustments |  | 14,000,000 | 16,000,000 | 3,000,000
Adjustments to discontinued operations |  | 0 | 0 | 61,000,000
Profit (loss) from discontinued operations |  | € 14,000,000 | € 16,000,000 | € 64,000,000

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