Statement Of Cash Flows [Abstract]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Profit (loss) | — |
2,845,000,000.0
EUR
|
4,593,000,000.0
EUR
|
— | — |
| Adjustments to reconcile profit (loss) [abstract] | |||||
| Adjustments for provisions | — |
18,000,000
EUR
|
35,000,000
EUR
|
— | — |
| Other adjustments for non-cash items | — |
220,000,000
EUR
|
36,000,000
EUR
|
— | — |
| Adjustments for losses (gains) on disposal of non-current assets | — |
9,000,000
EUR
|
17,000,000
EUR
|
— | — |
| Other adjustments for which cash effects are investing or financing cash flow | — |
841,000,000
EUR
|
875,000,000
EUR
|
— | — |
| Dividends received, classified as operating activities | — |
3,000,000
EUR
|
4,000,000
EUR
|
— | — |
| Interest paid, classified as operating activities | — |
205,000,000
EUR
|
276,000,000
EUR
|
— | — |
| Interest received, classified as operating activities | — |
1,052,000
EUR
|
1,151,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
1,486,000
EUR
|
912,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from (used in) investing activities | — |
2,166,000
EUR
|
1,532,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control | — |
0
EUR
|
5,000,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
27,000,000
EUR
|
23,000,000
EUR
|
— | — |
| Dividends paid, classified as financing activities | — |
0
EUR
|
216,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
288,000,000
EUR
|
265,000,000
EUR
|
— | — |
| Cash and cash equivalents |
1,032,000
EUR
|
— | — |
1,424,000
EUR
|
1,069,000
EUR
|