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 | — | — | — | — | — | — |
5,894,000,000
EUR
|
4,428,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, assets [abstract] | ||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Disclosure of fair value measurement of liabilities [abstract] | ||||||||||||||||||||||||||||||||
| Disclosure of fair value measurement of liabilities [line items] | ||||||||||||||||||||||||||||||||
| Liabilities | — | — | — | — | — | — |
2,809,000,000
EUR
|
1,750,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Reconciliation of changes in fair value measurement, liabilities [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 |
2,992,000,000
EUR
|
77,000,000
EUR
|
51,000,000
EUR
|
41,000,000
EUR
|
3,086,000,000
EUR
|
7,000,000
EUR
|
3,086,000,000
EUR
|
2,679,000,000
EUR
|
2,630,000,000
EUR
|
6,000,000
EUR
|
77,000,000
EUR
|
8,000,000
EUR
|
42,000,000
EUR
|
2,679,000,000
EUR
|
29,000,000
EUR
|
29,000,000
EUR
|
2,505,000,000
EUR
|
35,000,000
EUR
|
0
EUR
|
2,385,000,000
EUR
|
33,000,000
EUR
|
77,000,000
EUR
|
41,000,000
EUR
|
2,505,000,000
EUR
|
2,505,000,000
EUR
|
0
EUR
|
33,000,000
EUR
|
6,000,000
EUR
|
77,000,000
EUR
|
2,414,000,000
EUR
|
41,000,000
EUR
|
2,505,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |