Disclosure Of Fair Value Measurement [Text Block]
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As at 2020-12-31 |
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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 | — |
8 618,0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
8 043,1
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 |
230,000,000
EUR
|
3 214,2
EUR
|
68,000,000
EUR
|
8,000,000
EUR
|
2 440,9
EUR
|
8,682,000,000
EUR
|
17,000,000
EUR
|
2,301,000,000
EUR
|
4,046,000,000
EUR
|
3 213,4
EUR
|
542,000,000
EUR
|
36,000,000
EUR
|
16,000,000
EUR
|
160,000,000
EUR
|
5,815,000,000
EUR
|
3 013,7
EUR
|
22,000,000
EUR
|
378,000,000
EUR
|
13,000,000
EUR
|
3 013,0
EUR
|
7,000,000
EUR
|
2 531,6
EUR
|
3,801,000,000
EUR
|
2,241,000,000
EUR
|
68,000,000
EUR
|
21,000,000
EUR
|
3,876,000,000
EUR
|
6,000,000
EUR
|
2 807,7
EUR
|
2,218,000,000
EUR
|
378,000,000
EUR
|
12,000,000
EUR
|
112,000,000
EUR
|
4,098,000,000
EUR
|
2 575,6
EUR
|
2 808,3
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |