Statement Of Cash Flows [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
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) |
51,000,000
EUR
|
— |
4 597,1
EUR
|
4 602,2
EUR
|
4 597,1
EUR
|
3 563,4
EUR
|
— |
3 567,6
EUR
|
42,000,000
EUR
|
3 563,4
EUR
|
3 750,0
EUR
|
3 750,0
EUR
|
3 755,2
EUR
|
52,000,000
EUR
|
— | — |
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||||||
| Adjustments for share-based payments | — | — | — |
1,552,000,000
EUR
|
— | — | — |
1,297,000,000
EUR
|
— | — | — | — |
1,444,000,000
EUR
|
— | — | — |
| Other adjustments for non-cash items | — | — | — |
165,000,000
EUR
|
— | — | — |
58,000,000
EUR
|
— | — | — | — |
19,000,000
EUR
|
— | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
5,000,000
EUR
|
— | — | — |
36,000,000
EUR
|
— | — | — | — |
140,000,000
EUR
|
— | — | — |
| Dividends received, classified as operating activities | — | — | — |
3,798,000,000
EUR
|
— | — | — |
3,725,000,000
EUR
|
— | — | — | — |
3,641,000,000
EUR
|
— | — | — |
| Interest paid, classified as operating activities | — | — | — |
17,000,000
EUR
|
— | — | — |
324,000,000
EUR
|
— | — | — | — |
216,000,000
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
6 728,4
EUR
|
— | — | — |
6 453,3
EUR
|
— | — | — | — |
6 262,8
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||||||
| Cash flows from (used in) investing activities | — | — | — |
1 633,7
EUR
|
— | — | — |
2 639,1
EUR
|
— | — | — | — |
1 289,6
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — | — | — |
—
EUR
|
— | — | — |
—
EUR
|
— | — | — | — |
—
EUR
|
— | — | — |
| Proceeds from issuing shares | — | — | — |
58,000,000
EUR
|
— | — | — |
1,297,000,000
EUR
|
— | — | — | — |
600,000,000
EUR
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
3,964,000,000
EUR
|
— | — | — |
4,518,000,000
EUR
|
— | — | — | — |
4,258,000,000
EUR
|
— | — | — |
| Dividends paid, classified as financing activities | — | — | — |
2 352,1
EUR
|
— | — | — |
2 190,6
EUR
|
— | — | — | — |
2 221,1
EUR
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
8 864,2
EUR
|
— | — | — |
2 591,1
EUR
|
— | — | — | — |
3 689,6
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | — | — |
3 692,1
EUR
|
— | — | — |
1 119,9
EUR
|
— | — | — | — |
1 294,0
EUR
|
— | — | — |
| Cash and cash equivalents | — |
2 713,8
EUR
|
— | — | — | — |
6 405,9
EUR
|
— | — | — | — | — | — | — |
5 286,0
EUR
|
3 992,0
EUR
|