Statement Of Cash Flows [Abstract]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-01-01 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2019-01-01 |
|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||
| Cash flows from (used in) operating activities [abstract] | ||||||
| Profit (loss) | — |
386,000,000
EUR
|
— |
2 512
EUR
|
— | — |
| Adjustments to reconcile profit (loss) [abstract] | ||||||
| Adjustments for decrease (increase) in inventories | — |
1 016
EUR
|
— |
590,000,000
EUR
|
— | — |
| Other adjustments to reconcile profit (loss) | — |
328,000,000
EUR
|
— |
221,000,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
1 866
EUR
|
— |
3 145
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | ||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — |
1,000,000
EUR
|
— |
47,000,000
EUR
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
21,000,000
EUR
|
— |
29,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
799,000,000
EUR
|
— |
1 105
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | ||||||
| Repayments of borrowings, classified as financing activities | — |
778,000,000
EUR
|
— |
875,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
68,000,000
EUR
|
— |
1 740
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
20,000,000
EUR
|
— |
2,000,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
1 115
EUR
|
— |
302,000,000
EUR
|
— | — |
| Cash and cash equivalents |
3 747
EUR
|
— |
2 632
EUR
|
— |
2 632
EUR
|
2 330
EUR
|