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 |
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 |
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] | |||||||||||
| Profit (loss) |
229,000,000
EUR
|
— |
1 072
EUR
|
1 072
EUR
|
1 301
EUR
|
— |
831,000,000
EUR
|
641,000,000
EUR
|
190,000,000
EUR
|
641,000,000
EUR
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for depreciation and amortisation expense | — | — | — | — |
2 277
EUR
|
— |
2 292
EUR
|
— | — | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — | — |
235,000,000
EUR
|
— |
47,000,000
EUR
|
— | — | — | — |
| 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
|