Disclosure Of Fair Value Measurement [Text Block]
| Concept |
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As at 2020-12-31 |
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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 | — | — | — |
1 684,3
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 110,9
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 | — | — | — |
1 122,2
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,274,000,000
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 |
7,000,000
EUR
|
1,413,000,000
EUR
|
782,000,000
EUR
|
5,621,000,000
EUR
|
5,176,000,000
EUR
|
153,000,000
EUR
|
4,587,000,000
EUR
|
445,000,000
EUR
|
492,000,000
EUR
|
304,000,000
EUR
|
509,000,000
EUR
|
355,000,000
EUR
|
4,480,000,000
EUR
|
301,000,000
EUR
|
4,000,000
EUR
|
551,000,000
EUR
|
451,000,000
EUR
|
4,587,000,000
EUR
|
4,835,000,000
EUR
|
89,000,000
EUR
|
3,174,000,000
EUR
|
423,000,000
EUR
|
381,000,000
EUR
|
202,000,000
EUR
|
3,597,000,000
EUR
|
3,197,000,000
EUR
|
250,000,000
EUR
|
43,000,000
EUR
|
4,000,000
EUR
|
271,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |