Statement Of Cash Flows [Abstract]
| Concept |
2023-01-01 to 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 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] | |||||||
| Dividends received, classified as operating activities |
324,000,000
EUR
|
— | — |
284,000,000
EUR
|
— |
272,000,000
EUR
|
— |
| Cash flows from (used in) operating activities |
1,263,000,000
EUR
|
— | — |
1,002,000,000
EUR
|
— |
810,000,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||||
| Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities |
257,000,000
EUR
|
— | — |
347,000,000
EUR
|
— |
923,000,000
EUR
|
— |
| Proceeds from government grants, classified as investing activities |
9,000,000
EUR
|
— | — |
25,000,000
EUR
|
— |
46,000,000
EUR
|
— |
| Interest received, classified as investing activities |
236,000,000
EUR
|
— | — |
47,000,000
EUR
|
— |
3,000,000
EUR
|
— |
| Cash flows from (used in) investing activities |
425,000,000
EUR
|
— | — |
732,000,000
EUR
|
— |
457,000,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||||
| Payments to acquire or redeem entity's shares |
114,000,000
EUR
|
— | — |
446,000,000
EUR
|
— |
432,000,000
EUR
|
— |
| Proceeds from borrowings, classified as financing activities |
964,000,000
EUR
|
— | — |
1,207,000,000
EUR
|
— |
603,000,000
EUR
|
— |
| Repayments of borrowings, classified as financing activities |
747,000,000
EUR
|
— | — |
665,000,000
EUR
|
— |
1,671,000,000
EUR
|
— |
| Payments of lease liabilities, classified as financing activities |
87,000,000
EUR
|
— | — |
72,000,000
EUR
|
— |
131,000,000
EUR
|
— |
| Interest paid, classified as financing activities |
432,000,000
EUR
|
— | — |
329,000,000
EUR
|
— |
295,000,000
EUR
|
— |
| Cash flows from (used in) financing activities |
1,305,000,000
EUR
|
— | — |
316,000,000
EUR
|
— |
2,221,000,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||||
| Effect of exchange rate changes on cash and cash equivalents |
160,000,000
EUR
|
— | — |
283,000,000
EUR
|
— |
99,000,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes |
341,000,000
EUR
|
— | — |
406,000,000
EUR
|
— |
990,000,000
EUR
|
— |
| Cash and cash equivalents | — |
4,789,000,000
EUR
|
5,130,000,000
EUR
|
— |
5,536,000,000
EUR
|
— |
6,526,000,000
EUR
|