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 | — | — | — | — | — | — | — |
2,744,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
2,694,000,000
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 | — | — | — | — | — | — | — |
652,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
576,000,000
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 |
2,178,000,000
EUR
|
4,000,000
EUR
|
1,000,000
EUR
|
2,088,000,000
EUR
|
29,000,000
EUR
|
94,000,000
EUR
|
212,000,000
EUR
|
2,092,000,000
EUR
|
29,000,000
EUR
|
1,000,000
EUR
|
2,096,000,000
EUR
|
2,118,000,000
EUR
|
94,000,000
EUR
|
4,000,000
EUR
|
104,000,000
EUR
|
2,114,000,000
EUR
|
2,114,000,000
EUR
|
4,000,000
EUR
|
104,000,000
EUR
|
2,118,000,000
EUR
|
2,096,000,000
EUR
|
94,000,000
EUR
|
1,000,000
EUR
|
29,000,000
EUR
|
1,000,000
EUR
|
29,000,000
EUR
|
1,912,000,000
EUR
|
1,877,000,000
EUR
|
4,000,000
EUR
|
88,000,000
EUR
|
1,873,000,000
EUR
|
157,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |