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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||
| Profit (loss) |
93,000,000
EUR
|
— |
2 521
EUR
|
2 614
EUR
|
2 521
EUR
|
456,000,000
EUR
|
— |
489,000,000
EUR
|
33,000,000
EUR
|
456,000,000
EUR
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for decrease (increase) in inventories | — | — | — |
1 179
EUR
|
— | — | — |
410,000,000
EUR
|
— | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
7,000,000
EUR
|
— | — | — |
28,000,000
EUR
|
— | — | — |
| Income taxes paid (refund), classified as operating activities | — | — | — |
793,000,000
EUR
|
— | — | — |
466,000,000
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
4 439
EUR
|
— | — | — |
4 711
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
120,000,000
EUR
|
— | — | — |
43,000,000
EUR
|
— | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
913,000,000
EUR
|
— | — | — |
1 100
EUR
|
— | — | — |
| Other cash receipts from sales of equity or debt instruments of other entities, classified as investing activities | — | — | — |
4,000,000
EUR
|
— | — | — |
2 389
EUR
|
— | — | — |
| Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities | — | — | — |
33,000,000
EUR
|
— | — | — |
74,000,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities | — | — | — |
2 199
EUR
|
— | — | — |
194,000,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||
| Proceeds from changes in ownership interests in subsidiaries that do not result in loss of control | — | — | — |
12,000,000
EUR
|
— | — | — |
0
EUR
|
— | — | — |
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — | — | — |
9,000,000
EUR
|
— | — | — |
29,000,000
EUR
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
762,000,000
EUR
|
— | — | — |
766,000,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
3 789
EUR
|
— | — | — |
1 300
EUR
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
31,000,000
EUR
|
— | — | — |
126,000,000
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | — | — |
1 500
EUR
|
— | — | — |
3 456
EUR
|
— | — | — |
| Cash and cash equivalents | — |
6 943
EUR
|
— | — | — | — |
8 443
EUR
|
— | — | — |
4 987
EUR
|