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 | — | — | — |
31 067,6
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
28 005,4
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 |
3,795,000,000
EUR
|
1 654,7
EUR
|
11 489,7
EUR
|
13 736,2
EUR
|
1,652,000,000
EUR
|
13 346,8
EUR
|
3,894,000,000
EUR
|
821,000,000
EUR
|
4,988,000,000
EUR
|
9 438,0
EUR
|
2,141,000,000
EUR
|
11 820,9
EUR
|
5,001,000,000
EUR
|
3,623,000,000
EUR
|
539,000,000
EUR
|
2,882,000,000
EUR
|
12 035,0
EUR
|
1 862,6
EUR
|
10 278,1
EUR
|
1,605,000,000
EUR
|
1,745,000,000
EUR
|
801,000,000
EUR
|
2 428,4
EUR
|
10 438,6
EUR
|
8 170,0
EUR
|
5,708,000,000
EUR
|
5,051,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |