Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||
| Property, plant and equipment [abstract] | ||
| Land and buildings [abstract] | ||
| Land and buildings |
637,000,000
EUR
|
643,000,000
EUR
|
| Construction in progress |
534,000,000
EUR
|
399,000,000
EUR
|
| Other property, plant and equipment |
22,000,000
EUR
|
20,000,000
EUR
|
| Property, plant and equipment |
1,632,000,000
EUR
|
1,506,000,000
EUR
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Computer software |
13,000,000
EUR
|
13,000,000
EUR
|
| Intangible assets under development |
12,000,000
EUR
|
18,000,000
EUR
|
| Other intangible assets |
21,000,000
EUR
|
21,000,000
EUR
|
| Goodwill |
96,000,000
EUR
|
97,000,000
EUR
|
| Intangible assets and goodwill |
181,000,000
EUR
|
192,000,000
EUR
|
| Investments accounted for using equity method [abstract] | ||
| Investments in associates accounted for using equity method |
6,000,000
EUR
|
6,000,000
EUR
|
| Miscellaneous non-current assets [abstract] | ||
| Non-current investments other than investments accounted for using equity method | — | — |
| Long-term deposits |
10,000,000
EUR
|
15,000,000
EUR
|
| Trade and other current receivables [abstract] | ||
| Current trade receivables |
247,000,000
EUR
|
275,000,000
EUR
|
| Current prepayments and current accrued income other than current contract assets [abstract] | ||
| Current prepayments [abstract] | ||
| Current prepayments |
15,000,000
EUR
|
15,000,000
EUR
|
| Other current receivables |
60,000,000
EUR
|
54,000,000
EUR
|
| Current prepayments and current accrued income including current contract assets [abstract] | ||
| Categories of non-current financial assets [abstract] | ||
| Non-current financial assets |
70,000,000
EUR
|
75,000,000
EUR
|
| Classes of current inventories [abstract] | ||
| Current inventories |
216,000,000
EUR
|
236,000,000
EUR
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
241,000,000
EUR
|
275,000,000
EUR
|
| Borrowings [abstract] | ||
| Non-current portion of non-current borrowings |
-
EUR
|
4,000,000
EUR
|
| Current borrowings and current portion of non-current borrowings [abstract] | ||
| Current borrowings |
1,000,000
EUR
|
6,000,000
EUR
|
| Current portion of non-current borrowings |
100,000,000
EUR
|
1,000,000
EUR
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Trade and other current payables [abstract] | ||
| Current trade payables |
184,000,000
EUR
|
196,000,000
EUR
|
| Other current payables |
158,000,000
EUR
|
157,000,000
EUR
|
| Miscellaneous non-current liabilities [abstract] | ||
| Non-current net defined benefit liability |
66,000,000
EUR
|
62,000,000
EUR
|
| Issued capital [abstract] | ||
| Issued capital |
29,000,000
EUR
|
29,000,000
EUR
|
| Retained earnings [abstract] | ||
| Retained earnings |
2,178,000,000
EUR
|
2,096,000,000
EUR
|
| Accumulated other comprehensive income [abstract] | ||
| Reserve of exchange differences on translation |
212,000,000
EUR
|
104,000,000
EUR
|
| Reserve of cash flow hedges |
1,000,000
EUR
|
1,000,000
EUR
|
| Net assets (liabilities) [abstract] | ||
| Assets |
2,744,000,000
EUR
|
2,694,000,000
EUR
|
| Liabilities |
652,000,000
EUR
|
576,000,000
EUR
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
817,000,000
EUR
|
869,000,000
EUR
|
| Current liabilities |
494,000,000
EUR
|
416,000,000
EUR
|
| Assets less current liabilities [abstract] |