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 | — | — |
8,256,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |
7,710,000,000
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 |
126,000,000
EUR
|
491,000,000
EUR
|
2,597,000,000
EUR
|
2,000,000
EUR
|
2,459,000,000
EUR
|
138,000,000
EUR
|
2,174,000,000
EUR
|
80,000,000
EUR
|
1,000,000
EUR
|
387,000,000
EUR
|
124,000,000
EUR
|
17,000,000
EUR
|
2,196,000,000
EUR
|
1,000,000
EUR
|
74,000,000
EUR
|
337,000,000
EUR
|
2,201,000,000
EUR
|
2,321,000,000
EUR
|
2,181,000,000
EUR
|
142,000,000
EUR
|
7,000,000
EUR
|
2,324,000,000
EUR
|
2,195,000,000
EUR
|
53,000,000
EUR
|
68,000,000
EUR
|
7,000,000
EUR
|
1,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |