Disclosure Of Fair Value Measurement [Text Block]
| Concept |
As at 2021-12-31 |
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As at 2020-12-31 |
As at 2020-12-31 |
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As at 2019-12-31 |
As at 2019-12-31 |
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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 | — | — | — | — |
5,911,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
3,969,000,000
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 | — | — | — | — |
2,958,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1,765,000,000
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 |
106,000,000
EUR
|
2,253,000,000
EUR
|
7,000,000
EUR
|
1,097,000,000
EUR
|
2,953,000,000
EUR
|
—
EUR
|
2,000,000
EUR
|
2,945,000,000
EUR
|
8,000,000
EUR
|
713,000,000
EUR
|
419,000,000
EUR
|
1,424,000,000
EUR
|
4,000,000
EUR
|
22,000,000
EUR
|
1,098,000,000
EUR
|
2,200,000,000
EUR
|
419,000,000
EUR
|
4,000,000
EUR
|
718,000,000
EUR
|
2,204,000,000
EUR
|
3,000,000
EUR
|
—
EUR
|
2,414,000,000
EUR
|
20,000,000
EUR
|
4,000,000
EUR
|
463,000,000
EUR
|
1,189,000,000
EUR
|
2,418,000,000
EUR
|
—
EUR
|
1,389,000,000
EUR
|
117,000,000
EUR
|
438,000,000
EUR
|
2,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |