Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
As at 2017-12-31 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets other than goodwill [abstract] | ||||
| Intangible assets other than goodwill |
2,997,000,000
EUR
|
3,466,000,000
EUR
|
— | — |
| Goodwill |
8,014,000,000
EUR
|
8,654,000,000
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||
| Investments in associates accounted for using equity method |
240,000,000
EUR
|
233,000,000
EUR
|
— | — |
| Trade and other non-current receivables [abstract] | ||||
| Trade and other non-current receivables |
230,000,000
EUR
|
178,000,000
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | ||||
| Non-current derivative financial assets |
6,000,000
EUR
|
1,000,000
EUR
|
— | — |
| Trade and other current receivables [abstract] | ||||
| Trade and other current receivables |
4,156,000,000
EUR
|
4,554,000,000
EUR
|
— | — |
| Classes of current inventories [abstract] | ||||
| Current inventories |
2,993,000,000
EUR
|
2,773,000,000
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
3,226,000,000
EUR
|
1,425,000,000
EUR
|
1,688,000,000
EUR
|
1,939,000,000
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 |
173,000,000
EUR
|
13,000,000
EUR
|
— | — |
| Miscellaneous current assets [abstract] | ||||
| Current derivative financial assets |
105,000,000
EUR
|
38,000,000
EUR
|
— | — |
| Current prepayments and other current assets |
424,000,000
EUR
|
476,000,000
EUR
|
— | — |
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
5,705,000,000
EUR
|
4,939,000,000
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings and current portion of non-current borrowings |
1,229,000,000
EUR
|
508,000,000
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 |
403,000,000
EUR
|
348,000,000
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 |
1,239,000,000
EUR
|
1,170,000,000
EUR
|
— | — |
| Trade and other current payables |
2,119,000,000
EUR
|
2,089,000,000
EUR
|
— | — |
| Trade and other payables [abstract] | ||||
| Accruals and deferred income including contract liabilities [abstract] | ||||
| Accruals |
1,678,000,000
EUR
|
1,632,000,000
EUR
|
— | — |
| Miscellaneous non-current liabilities [abstract] | ||||
| Non-current derivative financial liabilities |
86,000,000
EUR
|
124,000,000
EUR
|
— | — |
| Other non-current liabilities |
74,000,000
EUR
|
71,000,000
EUR
|
— | — |
| Miscellaneous current liabilities [abstract] | ||||
| Current derivative financial liabilities |
77,000,000
EUR
|
67,000,000
EUR
|
— | — |
| Other current liabilities |
785,000,000
EUR
|
856,000,000
EUR
|
— | — |
| Issued capital [abstract] | ||||
| Issued capital |
182,000,000
EUR
|
179,000,000
EUR
|
— | — |
| Accumulated other comprehensive income [abstract] | ||||
| Reserve of exchange differences on translation |
48,000,000
EUR
|
44,000,000
EUR
|
45,000,000
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
27,713,000,000
EUR
|
27,016,000,000
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
11,227,000,000
EUR
|
9,459,000,000
EUR
|
— | — |
| Current liabilities |
7,735,000,000
EUR
|
6,978,000,000
EUR
|
— | — |
| Assets less current liabilities [abstract] |