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] | |||||
| Interest paid, classified as operating activities | — |
563,000,000
EUR
|
— |
399,000,000
EUR
|
— |
| Interest received, classified as operating activities | — |
12,000,000
EUR
|
— |
1,000,000
EUR
|
— |
| Income taxes paid (refund), classified as operating activities | — |
55,000,000
EUR
|
— |
15,000,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
1,534,000,000
EUR
|
— |
2,826,000,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
75,000,000
EUR
|
— |
357,000,000
EUR
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
4,000,000
EUR
|
— |
1,000,000
EUR
|
— |
| Dividends received, classified as investing activities | — |
2,000,000
EUR
|
— |
-
EUR
|
— |
| Cash flows from (used in) investing activities | — |
1,239,000,000
EUR
|
— |
1,583,000,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares | — |
1,024,000,000
EUR
|
— |
-
EUR
|
— |
| Proceeds from borrowings, classified as financing activities | — |
1,724,000,000
EUR
|
— |
11,437,000,000
EUR
|
— |
| Repayments of borrowings, classified as financing activities | — |
1,993,000,000
EUR
|
— |
3,389,000,000
EUR
|
— |
| Payments of lease liabilities, classified as financing activities | — |
862,000,000
EUR
|
— |
940,000,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
77,000,000
EUR
|
— |
7,147,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
14,000,000
EUR
|
— |
27,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
232,000,000
EUR
|
— |
2,711,000,000
EUR
|
— |
| Cash and cash equivalents |
6,658,000,000
EUR
|
— |
6,423,000,000
EUR
|
— |
3,715,000,000
EUR
|