Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
594,000,000
EUR
|
479,000,000
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets other than goodwill [abstract] | ||||
| Other intangible assets |
122,000,000
EUR
|
138,000,000
EUR
|
— | — |
| Goodwill |
475,000,000
EUR
|
480,000,000
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||
| Investments in associates accounted for using equity method |
2,038,000,000
EUR
|
1,951,000,000
EUR
|
— | — |
| Trade and other non-current receivables [abstract] | ||||
| Non-current receivables due from related parties | — | — | — | — |
| Non-current receivables due from associates |
262,000,000
EUR
|
246,000,000
EUR
|
— | — |
| Other non-current receivables |
258,000,000
EUR
|
252,000,000
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | ||||
| Non-current restricted cash and cash equivalents |
628,000,000
EUR
|
597,000,000
EUR
|
— | — |
| Non-current derivative financial assets |
254,000,000
EUR
|
148,000,000
EUR
|
— | — |
| Trade and other current receivables [abstract] | ||||
| Current trade receivables |
1,353,000,000
EUR
|
1,300,000,000
EUR
|
— | — |
| Other current receivables |
324,000,000
EUR
|
308,000,000
EUR
|
— | — |
| Trade and other current receivables |
1,677,000,000
EUR
|
1,608,000,000
EUR
|
— | — |
| Classes of current inventories [abstract] | ||||
| Current inventories |
458,000,000
EUR
|
476,000,000
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
4,789,000,000
EUR
|
5,130,000,000
EUR
|
5,536,000,000
EUR
|
6,526,000,000
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 |
—
EUR
|
2,000,000
EUR
|
— | — |
| Miscellaneous current assets [abstract] | ||||
| Current restricted cash and cash equivalents |
31,000,000
EUR
|
38,000,000
EUR
|
— | — |
| Current derivative financial assets |
31,000,000
EUR
|
184,000,000
EUR
|
— | — |
| Classes of other provisions [abstract] | ||||
| Other provisions [abstract] | ||||
| Other non-current provisions |
268,000,000
EUR
|
416,000,000
EUR
|
— | — |
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
10,423,000,000
EUR
|
10,776,000,000
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings and current portion of non-current borrowings |
942,000,000
EUR
|
877,000,000
EUR
|
— | — |
| Non-current portion of non-current borrowings, by type [abstract] | ||||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | ||||
| Trade and other non-current payables [abstract] | ||||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | ||||
| Non-current deferred income including non-current contract liabilities [abstract] | ||||
| Non-current deferred income other than non-current contract liabilities |
1,334,000,000
EUR
|
1,410,000,000
EUR
|
— | — |
| Other non-current payables |
1,310,000,000
EUR
|
898,000,000
EUR
|
— | — |
| Trade and other current payables [abstract] | ||||
| Current trade payables |
1,698,000,000
EUR
|
1,663,000,000
EUR
|
— | — |
| Current accruals and current deferred income including current contract liabilities [abstract] | ||||
| Current deferred income including current contract liabilities [abstract] | ||||
| Current contract liabilities [abstract] | ||||
| Current contract liabilities |
1,529,000,000
EUR
|
1,364,000,000
EUR
|
— | — |
| Other current payables |
419,000,000
EUR
|
404,000,000
EUR
|
— | — |
| Trade and other current payables |
3,646,000,000
EUR
|
3,431,000,000
EUR
|
— | — |
| Miscellaneous non-current liabilities [abstract] | ||||
| Non-current derivative financial liabilities |
99,000,000
EUR
|
66,000,000
EUR
|
— | — |
| Miscellaneous current liabilities [abstract] | ||||
| Current derivative financial liabilities |
34,000,000
EUR
|
47,000,000
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||
| Assets |
26,318,000,000
EUR
|
26,344,000,000
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
6,990,000,000
EUR
|
7,419,000,000
EUR
|
— | — |
| Current liabilities |
5,775,000,000
EUR
|
5,379,000,000
EUR
|
— | — |
| Assets less current liabilities [abstract] |