Disclosure Of Fair Value Measurement [Text Block]
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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 | — | — | — | — | — | — | — | — | — | — |
8,792,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,613,300,000
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 |
22,600,000
EUR
|
1,972,000,000
EUR
|
66,200,000
EUR
|
345,700,000
EUR
|
939,200,000
EUR
|
41,700,000
EUR
|
115,000,000
EUR
|
164,700,000
EUR
|
10,900,000
EUR
|
100,300,000
EUR
|
3,197,300,000
EUR
|
185,100,000
EUR
|
2,873,000,000
EUR
|
123,800,000
EUR
|
322,100,000
EUR
|
9,800,000
EUR
|
66,200,000
EUR
|
3,192,900,000
EUR
|
20,000,000
EUR
|
100,300,000
EUR
|
110,300,000
EUR
|
20,000,000
EUR
|
123,800,000
EUR
|
110,300,000
EUR
|
1,941,700,000
EUR
|
3,192,900,000
EUR
|
100,300,000
EUR
|
322,100,000
EUR
|
931,300,000
EUR
|
9,800,000
EUR
|
185,100,000
EUR
|
66,200,000
EUR
|
2,811,500,000
EUR
|
259,100,000
EUR
|
28,500,000
EUR
|
2,840,000,000
EUR
|
27,000,000
EUR
|
89,500,000
EUR
|
203,300,000
EUR
|
66,000,000
EUR
|
100,300,000
EUR
|
3,052,100,000
EUR
|
16,000,000
EUR
|
28,500,000
EUR
|
3,080,600,000
EUR
|
64,800,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |