Disclosure Of Fair Value Measurement [Text Block]
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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 | — | — |
30,683,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
30,181,000,000
EUR
|
— | — | — | — | — | — | — | — |
30,697,000,000
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 | — | — |
34,499,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
35,523,000,000
EUR
|
— | — | — | — | — | — | — | — |
28,300,000,000
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 |
12,542,000,000
EUR
|
25,000,000
EUR
|
3,816,000,000
EUR
|
3,824,000,000
EUR
|
4,949,000,000
EUR
|
8,000,000
EUR
|
643,000,000
EUR
|
3,151,000,000
EUR
|
9,000,000
EUR
|
5,351,000,000
EUR
|
429,000,000
EUR
|
25,000,000
EUR
|
4,139,000,000
EUR
|
5,342,000,000
EUR
|
9,894,000,000
EUR
|
-
EUR
|
2,382,000,000
EUR
|
429,000,000
EUR
|
15,000,000
EUR
|
15,000,000
EUR
|
2,299,000,000
EUR
|
2,284,000,000
EUR
|
2,397,000,000
EUR
|
4,139,000,000
EUR
|
67,000,000
EUR
|
4,139,000,000
EUR
|
67,000,000
EUR
|
429,000,000
EUR
|
403,000,000
EUR
|
2,522,000,000
EUR
|
2,620,000,000
EUR
|
403,000,000
EUR
|
98,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |