Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
1,732,000,000
EUR
|
1,827,000,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
1,322,000,000
EUR
|
1,229,000,000
EUR
|
— |
| Investment property [abstract] | |||
| Investment property |
3,117,000,000
EUR
|
2,889,000,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
5,328,000,000
EUR
|
4,929,000,000
EUR
|
— |
| Categories of financial assets [abstract] | |||
| Loans and receivables |
14,492,000,000
EUR
|
13,398,000,000
EUR
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
1,937,000,000
EUR
|
2,241,000,000
EUR
|
3,745,000,000
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 or as held for distribution to owners |
19,000,000
EUR
|
114,000,000
EUR
|
— |
| Borrowings [abstract] | |||
| Borrowings |
3,616,000,000
EUR
|
3,920,000,000
EUR
|
— |
| Borrowings, by type [abstract] | |||
| Miscellaneous liabilities [abstract] | |||
| Subordinated liabilities [abstract] | |||
| Subordinated liabilities |
2,748,000,000
EUR
|
2,758,000,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
111,139,000,000
EUR
|
111,418,000,000
EUR
|
— |
| Liabilities |
96,967,000,000
EUR
|
97,644,000,000
EUR
|
— |
| Assets less current liabilities [abstract] |