Disclosure Of Fair Value Measurement [Text Block]
| Concept |
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As at 2023-12-31 |
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As at 2022-12-31 |
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As at 2021-12-31 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of fair value measurement [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of assets [abstract] | |||||||||||||||||||||||||||
| Disclosure of fair value measurement of assets [line items] | |||||||||||||||||||||||||||
| Assets |
8,004,000,000
EUR
|
— | — | — | — | — | — | — | — |
8,286,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | |||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of equity [abstract] | |||||||||||||||||||||||||||
| Disclosure of fair value measurement of equity [line items] | |||||||||||||||||||||||||||
| Equity |
2,947,000,000
EUR
|
851,000,000
EUR
|
129,000,000
EUR
|
2,120,000,000
EUR
|
1,000,000
EUR
|
72,000,000
EUR
|
82,000,000
EUR
|
2,817,000,000
EUR
|
1,000,000
EUR
|
3,065,000,000
EUR
|
145,000,000
EUR
|
2,139,000,000
EUR
|
864,000,000
EUR
|
131,000,000
EUR
|
1,000,000
EUR
|
67,000,000
EUR
|
2,920,000,000
EUR
|
20,000,000
EUR
|
126,000,000
EUR
|
491,000,000
EUR
|
2,597,000,000
EUR
|
2,000,000
EUR
|
2,459,000,000
EUR
|
138,000,000
EUR
|
2,174,000,000
EUR
|
80,000,000
EUR
|
1,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |