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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As at 2018-12-31 |
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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 | — | — | — | — |
51 518
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — |
46 217
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 |
196,000,000
EUR
|
65,000,000
EUR
|
456,000,000
EUR
|
609,000,000
EUR
|
6 402
EUR
|
3 925
EUR
|
17,000,000
EUR
|
54,000,000
EUR
|
1 472
EUR
|
3 511
EUR
|
315,000,000
EUR
|
22,000,000
EUR
|
609,000,000
EUR
|
1 471
EUR
|
234,000,000
EUR
|
43,000,000
EUR
|
58,000,000
EUR
|
6 177
EUR
|
214,000,000
EUR
|
26,000,000
EUR
|
422,000,000
EUR
|
624,000,000
EUR
|
3 614
EUR
|
6 374
EUR
|
55,000,000
EUR
|
54,000,000
EUR
|
1 473
EUR
|
338,000,000
EUR
|
145,000,000
EUR
|
-
EUR
|
45,000,000
EUR
|
1 521
EUR
|
-
EUR
|
145,000,000
EUR
|
28,000,000
EUR
|
338,000,000
EUR
|
-
EUR
|
3 511
EUR
|
-
EUR
|
69,000,000
EUR
|
28,000,000
EUR
|
322,000,000
EUR
|
-
EUR
|
-
EUR
|
3 556
EUR
|
-
EUR
|
45,000,000
EUR
|
815,000,000
EUR
|
322,000,000
EUR
|
5 783
EUR
|
5 828
EUR
|
815,000,000
EUR
|
69,000,000
EUR
|
1 521
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |