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 2020-12-31 |
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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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 | — | — |
9,028,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8,350,000,000
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 | — | — |
6,611,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6,263,000,000
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 |
247,000,000
EUR
|
2,330,000,000
EUR
|
2,417,000,000
EUR
|
118,000,000
EUR
|
122,000,000
EUR
|
2,417,000,000
EUR
|
87,000,000
EUR
|
0
EUR
|
219,000,000
EUR
|
32,000,000
EUR
|
2,308,000,000
EUR
|
0
EUR
|
2,087,000,000
EUR
|
32,000,000
EUR
|
133,000,000
EUR
|
116,000,000
EUR
|
222,000,000
EUR
|
135,000,000
EUR
|
87,000,000
EUR
|
2,087,000,000
EUR
|
2,380,000,000
EUR
|
0
EUR
|
213,000,000
EUR
|
2,380,000,000
EUR
|
87,000,000
EUR
|
2,297,000,000
EUR
|
279,000,000
EUR
|
110,000,000
EUR
|
139,000,000
EUR
|
33,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |