Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
3 637
EUR
|
3 494
EUR
|
3 660
EUR
|
| Investment property [abstract] | |||
| Investment property |
0
EUR
|
166,000,000
EUR
|
236,000,000
EUR
|
| Investments accounted for using equity method [abstract] | |||
| Investments in associates accounted for using equity method |
12,000,000
EUR
|
16,000,000
EUR
|
475,000,000
EUR
|
| Cash and cash equivalents [abstract] | |||
| Cash [abstract] | |||
| Cash |
1 081
EUR
|
2 907
EUR
|
— |
| Cash equivalents [abstract] | |||
| Short-term deposits, classified as cash equivalents |
334,000,000
EUR
|
166,000,000
EUR
|
— |
| Cash and cash equivalents |
1 415
EUR
|
3 073
EUR
|
4 690
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||
| Non-current assets or disposal groups classified as held for sale |
—
EUR
|
—
EUR
|
16 029
EUR
|
| Miscellaneous assets [abstract] | |||
| Other assets |
800,000,000
EUR
|
775,000,000
EUR
|
712,000,000
EUR
|
| Miscellaneous liabilities [abstract] | |||
| Subordinated liabilities [abstract] | |||
| Subordinated liabilities |
1 645
EUR
|
1 983
EUR
|
2 016
EUR
|
| Investment contracts liabilities |
—
EUR
|
7 103
EUR
|
7 239
EUR
|
| Other liabilities |
1 342
EUR
|
1 617
EUR
|
1 532
EUR
|
| Issued capital [abstract] | |||
| Issued capital |
98,000,000
EUR
|
98,000,000
EUR
|
98,000,000
EUR
|
| Retained earnings [abstract] | |||
| Retained earnings |
6 378
EUR
|
8 482
EUR
|
9 945
EUR
|
| Net assets (liabilities) [abstract] | |||
| Assets |
24 225
EUR
|
39 212
EUR
|
58 684
EUR
|
| Liabilities |
16 538
EUR
|
29 035
EUR
|
45 228
EUR
|
| Assets less current liabilities [abstract] |