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 | — | — | — | — | — | — | — | — |
4 675,1
EUR
|
4 460,3
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 |
8,786,000,000
EUR
|
884,000,000
EUR
|
4,083,000,000
EUR
|
702,000,000
EUR
|
2,664,000,000
EUR
|
934,000,000
EUR
|
9,968,000,000
EUR
|
187,000,000
EUR
|
1 067,0
EUR
|
9,585,000,000
EUR
|
8,869,000,000
EUR
|
506,000,000
EUR
|
1,327,000,000
EUR
|
4,133,000,000
EUR
|
2,110,000,000
EUR
|
1,665,000,000
EUR
|
9,079,000,000
EUR
|
1,476,000,000
EUR
|
1 067,4
EUR
|
640,000,000
EUR
|
1,339,000,000
EUR
|
4,264,000,000
EUR
|
1,518,000,000
EUR
|
4,133,000,000
EUR
|
1,408,000,000
EUR
|
1 003,4
EUR
|
3,223,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |