Disclosure Of Fair Value Measurement [Text Block]
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As at 2023-12-31 |
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As at 2022-12-31 |
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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 | — | — | — | — | — | — | — | — | — | — | — | — |
19,802,000,000
EUR
|
20,754,000,000
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 | — | — | — | — | — | — | — | — | — | — | — | — |
9,813,000,000
EUR
|
9,865,000,000
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 |
450,000,000
EUR
|
6,735,000,000
EUR
|
1,342,000,000
EUR
|
150,000,000
EUR
|
457,000,000
EUR
|
68,000,000
EUR
|
—
EUR
|
1,317,000,000
EUR
|
77,000,000
EUR
|
10,139,000,000
EUR
|
27,000,000
EUR
|
633,000,000
EUR
|
9,989,000,000
EUR
|
10,889,000,000
EUR
|
7,015,000,000
EUR
|
653,000,000
EUR
|
1,540,000,000
EUR
|
63,000,000
EUR
|
77,000,000
EUR
|
97,000,000
EUR
|
1,342,000,000
EUR
|
375,000,000
EUR
|
—
EUR
|
10,985,000,000
EUR
|
38,000,000
EUR
|
633,000,000
EUR
|
12,502,000,000
EUR
|
1,579,000,000
EUR
|
1,298,000,000
EUR
|
87,000,000
EUR
|
77,000,000
EUR
|
30,000,000
EUR
|
7,893,000,000
EUR
|
—
EUR
|
1,342,000,000
EUR
|
415,000,000
EUR
|
12,532,000,000
EUR
|
633,000,000
EUR
|
39,000,000
EUR
|
| Reconciliation of changes in fair value measurement, entity's own equity instruments [abstract] |