Disclosure Of Fair Value Measurement [Text Block]
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As at 2021-12-31 |
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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 | — |
7,022,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
20,660,000,000
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 | — |
5,717,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
9,997,000,000
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 |
459,000,000
EUR
|
1,305,000,000
EUR
|
853,000,000
EUR
|
1,683,000,000
EUR
|
0
EUR
|
0
EUR
|
42,000,000
EUR
|
174,000,000
EUR
|
237,000,000
EUR
|
253,000,000
EUR
|
15,000,000
EUR
|
103,000,000
EUR
|
10,664,000,000
EUR
|
332,000,000
EUR
|
4,000,000
EUR
|
1,786,000,000
EUR
|
7,846,000,000
EUR
|
61,000,000
EUR
|
1,170,000,000
EUR
|
6,854,000,000
EUR
|
225,000,000
EUR
|
1,588,000,000
EUR
|
318,000,000
EUR
|
76,000,000
EUR
|
232,000,000
EUR
|
5,467,000,000
EUR
|
8,851,000,000
EUR
|
3,000,000
EUR
|
5,982,000,000
EUR
|
1,786,000,000
EUR
|
23,000,000
EUR
|
421,000,000
EUR
|
112,000,000
EUR
|
1,170,000,000
EUR
|
645,000,000
EUR
|
1,588,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |