Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2020-12-31 |
As at 2020-01-01 |
As at 2019-12-31 |
As at 2019-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
8,611,000,000
EUR
|
— |
8,997,000,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets other than goodwill [abstract] | ||||
| Intangible assets other than goodwill |
3 546,8
EUR
|
— |
4 186,1
EUR
|
— |
| Goodwill |
4 390,5
EUR
|
— |
4 730,9
EUR
|
— |
| Miscellaneous non-current assets [abstract] | ||||
| Other non-current assets |
2,524,000,000
EUR
|
— |
2,495,000,000
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | ||||
| Current accrued income including current contract assets [abstract] | ||||
| Current contract assets |
270,000,000
EUR
|
— |
269,000,000
EUR
|
— |
| Trade and other receivables [abstract] | ||||
| Trade and other receivables |
1 229,1
EUR
|
— |
1 319,2
EUR
|
— |
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
2 148,9
EUR
|
1 944,9
EUR
|
1 944,9
EUR
|
2 809,3
EUR
|
| Miscellaneous current assets [abstract] | ||||
| Other current assets |
2,027,000,000
EUR
|
— |
2,626,000,000
EUR
|
— |
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
4 174,3
EUR
|
— |
4 596,8
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings and current portion of non-current borrowings |
160,000,000
EUR
|
— |
44,000,000
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 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 |
1 169,1
EUR
|
— |
1 093,5
EUR
|
— |
| Accruals classified as current | — | — | — | — |
| Short-term employee benefits accruals |
4,961,000,000
EUR
|
— |
4,973,000,000
EUR
|
— |
| Trade and other payables [abstract] | ||||
| Trade and other payables |
1,717,000,000
EUR
|
— |
2,200,000,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | ||||
| Other non-current liabilities |
9,715,000,000
EUR
|
— |
1 049,2
EUR
|
— |
| Miscellaneous current liabilities [abstract] | ||||
| Other current liabilities |
2,167,000,000
EUR
|
— |
2,633,000,000
EUR
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
1,326,000,000
EUR
|
— |
1,320,000,000
EUR
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
5 043,7
EUR
|
— |
4 653,2
EUR
|
— |
| Accumulated other comprehensive income [abstract] | ||||
| Accumulated other comprehensive income |
6,269,000,000
EUR
|
— |
104,000,000
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
12 964,2
EUR
|
— |
13 872,6
EUR
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
3 760,3
EUR
|
— |
3 669,0
EUR
|
— |
| Current liabilities |
2 086,9
EUR
|
— |
2 133,8
EUR
|
— |
| Assets less current liabilities [abstract] |