Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||||||
| Intangible assets and goodwill [abstract] | |||||||
| Intangible assets other than goodwill [abstract] | |||||||
| Intangible assets other than goodwill |
3,650,000,000
EUR
|
— |
2,997,000,000
EUR
|
— | — | — | — |
| Goodwill |
10,637,000,000
EUR
|
— |
8,014,000,000
EUR
|
— | — | — | — |
| Investments accounted for using equity method [abstract] | |||||||
| Investments in associates accounted for using equity method |
426,000,000
EUR
|
— |
240,000,000
EUR
|
— | — | — | — |
| Trade and other non-current receivables [abstract] | |||||||
| Trade and other non-current receivables |
224,000,000
EUR
|
— |
230,000,000
EUR
|
— | — | — | — |
| Miscellaneous non-current assets [abstract] | |||||||
| Non-current derivative financial assets |
2,000,000
EUR
|
— |
6,000,000
EUR
|
— | — | — | — |
| Trade and other current receivables [abstract] | |||||||
| Trade and other current receivables |
3,787,000,000
EUR
|
— |
4,156,000,000
EUR
|
— | — | — | — |
| Classes of current inventories [abstract] | |||||||
| Current inventories |
3,450,000,000
EUR
|
— |
2,993,000,000
EUR
|
— | — | — | — |
| Classes of current inventories, alternative [abstract] | |||||||
| Cash and cash equivalents [abstract] | |||||||
| Cash and cash equivalents |
2,303,000,000
EUR
|
— |
3,226,000,000
EUR
|
— | — |
1,425,000,000
EUR
|
1,688,000,000
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 |
71,000,000
EUR
|
— |
173,000,000
EUR
|
— | — | — | — |
| Miscellaneous current assets [abstract] | |||||||
| Current derivative financial assets |
61,000,000
EUR
|
— |
105,000,000
EUR
|
— | — | — | — |
| Current prepayments and other current assets |
493,000,000
EUR
|
— |
424,000,000
EUR
|
— | — | — | — |
| Borrowings [abstract] | |||||||
| Non-current portion of non-current borrowings |
6,473,000,000
EUR
|
— |
5,705,000,000
EUR
|
— | — | — | — |
| Current borrowings and current portion of non-current borrowings [abstract] | |||||||
| Current borrowings and current portion of non-current borrowings |
506,000,000
EUR
|
— |
1,229,000,000
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 contract liabilities [abstract] | |||||||
| Non-current contract liabilities |
446,000,000
EUR
|
— |
403,000,000
EUR
|
— | — | — | — |
| Trade and other current payables [abstract] | |||||||
| 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 |
1,491,000,000
EUR
|
— |
1,239,000,000
EUR
|
— | — | — | — |
| Accruals classified as current |
1,784,000,000
EUR
|
— |
1,678,000,000
EUR
|
— | — | — | — |
| Trade and other current payables |
1,872,000,000
EUR
|
— |
2,119,000,000
EUR
|
— | — | — | — |
| Miscellaneous non-current liabilities [abstract] | |||||||
| Non-current derivative financial liabilities |
119,000,000
EUR
|
— |
86,000,000
EUR
|
— | — | — | — |
| Other non-current liabilities |
56,000,000
EUR
|
— |
74,000,000
EUR
|
— | — | — | — |
| Miscellaneous current liabilities [abstract] | |||||||
| Current derivative financial liabilities |
83,000,000
EUR
|
— |
77,000,000
EUR
|
— | — | — | — |
| Other current liabilities |
587,000,000
EUR
|
— |
785,000,000
EUR
|
— | — | — | — |
| Issued capital [abstract] | |||||||
| Issued capital |
177,000,000
EUR
|
— |
182,000,000
EUR
|
— | — | — | — |
| Accumulated other comprehensive income [abstract] | |||||||
| Reserve of exchange differences on translation | — |
32,000,000
EUR
|
— |
48,000,000
EUR
|
44,000,000
EUR
|
— | — |
| Net assets (liabilities) [abstract] | |||||||
| Assets |
30,961,000,000
EUR
|
— |
27,713,000,000
EUR
|
— | — | — | — |
| Net current assets (liabilities) [abstract] | |||||||
| Current assets |
10,347,000,000
EUR
|
— |
11,227,000,000
EUR
|
— | — | — | — |
| Current liabilities |
7,450,000,000
EUR
|
— |
7,735,000,000
EUR
|
— | — | — | — |
| Assets less current liabilities [abstract] |