Statement Of Cash Flows [Abstract]
| Concept |
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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||||||
| Cash flows from (used in) operating activities [abstract] | |||||||||||
| Profit (loss) | — |
1,427,000,000
EUR
|
1,541,000,000
EUR
|
1,427,000,000
EUR
|
114,000,000
EUR
|
181,000,000
EUR
|
— |
2,567,000,000
EUR
|
2,748,000,000
EUR
|
2,567,000,000
EUR
|
— |
| Adjustments to reconcile profit (loss) [abstract] | |||||||||||
| Adjustments for depreciation and amortisation expense | — | — |
181,000,000
EUR
|
— | — | — | — | — |
187,000,000
EUR
|
— | — |
| Adjustments for losses (gains) on disposal of non-current assets | — | — |
57,000,000
EUR
|
— | — | — | — | — |
450,000,000
EUR
|
— | — |
| Other adjustments to reconcile profit (loss) | — | — |
1,978,000,000
EUR
|
— | — | — | — | — |
1,397,000,000
EUR
|
— | — |
| Dividends received, classified as operating activities | — | — |
273,000,000
EUR
|
— | — | — | — | — |
226,000,000
EUR
|
— | — |
| Interest paid, classified as operating activities | — | — |
190,000,000
EUR
|
— | — | — | — | — |
158,000,000
EUR
|
— | — |
| Interest received, classified as operating activities | — | — |
375,000,000
EUR
|
— | — | — | — | — |
523,000,000
EUR
|
— | — |
| Income taxes paid (refund), classified as operating activities | — | — |
290,000,000
EUR
|
— | — | — | — | — |
350,000,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — | — |
33,000,000
EUR
|
— | — | — | — | — |
1,185,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||||||||
| Cash flows from losing control of subsidiaries or other businesses, classified as investing activities | — | — |
519,000,000
EUR
|
— | — | — | — | — |
—
EUR
|
— | — |
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — | — |
16,000,000
EUR
|
— | — | — | — | — |
936,000,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — | — |
2,961,000,000
EUR
|
— | — | — | — | — |
3,277,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||||||||
| Payments to acquire or redeem entity's shares | — | — |
1,444,000,000
EUR
|
— | — | — | — | — |
380,000,000
EUR
|
— | — |
| Proceeds from borrowings, classified as financing activities | — | — |
62,000,000
EUR
|
— | — | — | — | — |
147,000,000
EUR
|
— | — |
| Repayments of borrowings, classified as financing activities | — | — |
920,000,000
EUR
|
— | — | — | — | — |
853,000,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — | — |
4,695,000,000
EUR
|
— | — | — | — | — |
2,166,000,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — | — |
1,701,000,000
EUR
|
— | — | — | — | — |
2,296,000,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||||||
| Effect of exchange rate changes on cash and cash equivalents | — | — |
45,000,000
EUR
|
— | — | — | — | — |
3,000,000
EUR
|
— | — |
| Cash and cash equivalents |
3,073,000,000
EUR
|
— | — | — | — | — |
4,819,000,000
EUR
|
— | — | — |
2,520,000,000
EUR
|