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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||
| Profit (loss) |
770,000,000
EUR
|
— |
1,607,000,000
EUR
|
2,377,000,000
EUR
|
1,607,000,000
EUR
|
— |
868,000,000
EUR
|
314,000,000
EUR
|
554,000,000
EUR
|
554,000,000
EUR
|
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||
| Adjustments for finance costs | — | — | — |
195,000,000
EUR
|
— | — |
450,000,000
EUR
|
— | — | — |
| Adjustments for decrease (increase) in inventories | — | — | — |
812,000,000
EUR
|
— | — |
340,000,000
EUR
|
— | — | — |
| Adjustments for provisions | — | — | — |
36,000,000
EUR
|
— | — |
82,000,000
EUR
|
— | — | — |
| Adjustments for undistributed profits of associates | — | — | — |
11,000,000
EUR
|
— | — |
19,000,000
EUR
|
— | — | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — | — |
36,000,000
EUR
|
— | — |
17,000,000
EUR
|
— | — | — |
| Cash flows from (used in) operations | — | — | — |
3,660,000,000
EUR
|
— | — |
3,686,000,000
EUR
|
— | — | — |
| Dividends received, classified as operating activities | — | — | — |
1,000,000
EUR
|
— | — |
1,000,000
EUR
|
— | — | — |
| Income taxes paid (refund), classified as operating activities | — | — | — |
498,000,000
EUR
|
— | — |
322,000,000
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — | — | — |
3,040,000,000
EUR
|
— | — |
3,231,000,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — |
0
EUR
|
— | — |
1,000,000
EUR
|
— | — | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — | — |
0
EUR
|
— | — |
57,000,000
EUR
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — | — | — |
70,000,000
EUR
|
— | — |
58,000,000
EUR
|
— | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — | — | — |
1,121,000,000
EUR
|
— | — |
1,119,000,000
EUR
|
— | — | — |
| Purchase of intangible assets, classified as investing activities | — | — | — |
4,000,000
EUR
|
— | — |
11,000,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities | — | — | — |
1,486,000,000
EUR
|
— | — |
1,351,000,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||
| Payments from changes in ownership interests in subsidiaries that do not result in loss of control | — | — | — |
557,000,000
EUR
|
— | — |
332,000,000
EUR
|
— | — | — |
| Payments to acquire or redeem entity's shares | — | — | — |
0
EUR
|
— | — |
42,000,000
EUR
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — | — | — |
222,000,000
EUR
|
— | — |
242,000,000
EUR
|
— | — | — |
| Dividends paid, classified as financing activities | — | — | — |
6,000,000
EUR
|
— | — |
35,000,000
EUR
|
— | — | — |
| Interest paid, classified as financing activities | — | — | — |
182,000,000
EUR
|
— | — |
181,000,000
EUR
|
— | — | — |
| Other inflows (outflows) of cash, classified as financing activities | — | — | — |
32,000,000
EUR
|
— | — |
13,000,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities | — | — | — |
1,380,000,000
EUR
|
— | — |
1,301,000,000
EUR
|
— | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — | — |
33,000,000
EUR
|
— | — |
22,000,000
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | — | — |
175,000,000
EUR
|
— | — |
579,000,000
EUR
|
— | — | — |
| Cash and cash equivalents | — |
3,667,000,000
EUR
|
— | — | — |
3,459,000,000
EUR
|
— | — | — | — |