Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Cash flows from (used in) operating activities | — |
2 436
EUR
|
— |
1 866
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
263,000,000
EUR
|
— |
1,000,000
EUR
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
33,000,000
EUR
|
— |
21,000,000
EUR
|
— |
| Cash flows from (used in) investing activities | — |
738,000,000
EUR
|
— |
799,000,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Repayments of borrowings, classified as financing activities | — |
1 367
EUR
|
— |
778,000,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
268,000,000
EUR
|
— |
68,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
70,000,000
EUR
|
— |
20,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
1 500
EUR
|
— |
1 115
EUR
|
— |
| Cash and cash equivalents |
5 247
EUR
|
— |
3 747
EUR
|
— |
2 632
EUR
|