Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
2023-01-01 to 2023-12-31 |
2023-01-01 to 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||||
| Profit (loss) |
2,069,000,000
EUR
|
2,067,000,000
EUR
|
— |
2,000,000
EUR
|
2,069,000,000
EUR
|
— |
2,416,000,000
EUR
|
10,290,000,000
EUR
|
— |
2,416,000,000
EUR
|
7,874,000,000
EUR
|
— |
| Adjustments to reconcile profit (loss) [abstract] | ||||||||||||
| Adjustments for income tax expense | — |
69,000,000
EUR
|
— | — | — | — | — |
520,000,000
EUR
|
— | — | — | — |
| Adjustments for depreciation and amortisation expense | — |
359,000,000
EUR
|
— | — | — | — | — |
415,000,000
EUR
|
— | — | — | — |
| Other adjustments for non-cash items | — |
129,000,000
EUR
|
— | — | — | — | — |
157,000,000
EUR
|
— | — | — | — |
| Dividends received, classified as operating activities | — |
16,000,000
EUR
|
— | — | — | — | — |
14,000,000
EUR
|
— | — | — | — |
| Interest paid, classified as operating activities | — |
228,000,000
EUR
|
— | — | — | — | — |
213,000,000
EUR
|
— | — | — | — |
| Interest received, classified as operating activities | — |
153,000,000
EUR
|
— | — | — | — | — |
99,000,000
EUR
|
— | — | — | — |
| Income taxes paid (refund), classified as operating activities | — |
454,000,000
EUR
|
— | — | — | — | — |
164,000,000
EUR
|
— | — | — | — |
| Cash flows from (used in) operating activities | — |
1,819,000,000
EUR
|
— | — | — | — | — |
8,767,000,000
EUR
|
— | — | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — | — | — | — | — | — | — |
498,000,000
EUR
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
12,000,000
EUR
|
— | — | — | — | — |
3,000,000
EUR
|
— | — | — | — |
| Cash flows from (used in) investing activities | — |
1,095,000,000
EUR
|
— | — | — | — | — |
970,000,000
EUR
|
— | — | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||||
| Other inflows (outflows) of cash, classified as financing activities | — |
19,000,000
EUR
|
— | — | — | — | — |
168,000,000
EUR
|
— | — | — | — |
| Cash flows from (used in) financing activities | — |
2,614,000,000
EUR
|
— | — | — | — | — |
6,055,000,000
EUR
|
— | — | — | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
301,000,000
EUR
|
— | — | — | — | — |
3,682,000,000
EUR
|
— | — | — | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | ||||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — |
36,000,000
EUR
|
— | — | — | — | — |
7,000,000
EUR
|
— | — | — | — |
| Cash and cash equivalents | — | — |
4,183,000,000
EUR
|
— | — |
3,919,000,000
EUR
|
— | — | — | — | — |
7,592,000,000
EUR
|