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] | |||||
| Income taxes paid (refund), classified as operating activities | — |
439,000,000
EUR
|
— |
477,000,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
3 661
EUR
|
— |
3 395
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
185,000,000
EUR
|
— |
7,000,000
EUR
|
— |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
135,000,000
EUR
|
— |
291,000,000
EUR
|
— |
| Other inflows (outflows) of cash, classified as investing activities | — |
30,000,000
EUR
|
— |
98,000,000
EUR
|
— |
| Cash flows from (used in) investing activities | — |
1 334
EUR
|
— |
1 841
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments of lease liabilities, classified as financing activities | — |
967,000,000
EUR
|
— |
926,000,000
EUR
|
— |
| Interest paid, classified as financing activities | — |
158,000,000
EUR
|
— |
183,000,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
3 060
EUR
|
— |
1 126
EUR
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
733,000,000
EUR
|
— |
428,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
2,000,000
EUR
|
— |
455,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
735,000,000
EUR
|
— |
27,000,000
EUR
|
— |
| Cash and cash equivalents |
3 703
EUR
|
— |
4 439
EUR
|
— |
4 466
EUR
|