Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
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As at 2021-12-31 |
As at 2021-12-31 |
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| Disclosure of fair value measurement [text block] | — |
|
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| 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 | — | — |
23,141,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
22,626,000,000
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 |
254,000,000
EUR
|
— |
11,115,000,000
EUR
|
1,858,000,000
EUR
|
80,000,000
EUR
|
9,585,000,000
EUR
|
5,000,000
EUR
|
730,000,000
EUR
|
38,000,000
EUR
|
11,035,000,000
EUR
|
10,000,000
EUR
|
91,000,000
EUR
|
466,000,000
EUR
|
11,132,000,000
EUR
|
276,000,000
EUR
|
276,000,000
EUR
|
380,000,000
EUR
|
21,000,000
EUR
|
2,000,000
EUR
|
67,000,000
EUR
|
2,000,000
EUR
|
2,000,000
EUR
|
80,000,000
EUR
|
9,997,000,000
EUR
|
380,000,000
EUR
|
67,000,000
EUR
|
471,000,000
EUR
|
5,000,000
EUR
|
635,000,000
EUR
|
1,834,000,000
EUR
|
11,052,000,000
EUR
|
80,000,000
EUR
|
471,000,000
EUR
|
11,130,000,000
EUR
|
9,997,000,000
EUR
|
5,000,000
EUR
|
1,832,000,000
EUR
|
21,000,000
EUR
|
635,000,000
EUR
|
11,050,000,000
EUR
|
9,975,000,000
EUR
|
1,414,000,000
EUR
|
11,054,000,000
EUR
|
31,000,000
EUR
|
39,000,000
EUR
|
—
EUR
|
42,000,000
EUR
|
5,000,000
EUR
|
1,383,000,000
EUR
|
11,000,000
EUR
|
11,161,000,000
EUR
|
25,000,000
EUR
|
379,000,000
EUR
|
—
EUR
|
31,000,000
EUR
|
11,203,000,000
EUR
|
280,000,000
EUR
|
25,000,000
EUR
|
280,000,000
EUR
|
11,023,000,000
EUR
|
9,975,000,000
EUR
|
138,000,000
EUR
|
684,000,000
EUR
|
5,000,000
EUR
|
39,000,000
EUR
|
149,000,000
EUR
|
379,000,000
EUR
|
684,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |