Statement Of Changes In Equity [Abstract]

SES FDR - Filing #2813737

Concept	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	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	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through appropriation of retained earnings, equity	– EUR	– EUR	453,000,000 EUR	– EUR	– EUR	453,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	86,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	86,000,000 EUR
Increase (decrease) through exercise of options, equity	14,000,000 EUR	– EUR	11,000,000 EUR	3,000,000 EUR	– EUR	– EUR	– EUR	3,000,000 EUR	– EUR	– EUR	– EUR	6,000,000 EUR	6,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR
Purchase of treasury shares	—	—	—	—	—	—	—	—	—	—	– EUR	119,000,000 EUR	– EUR	119,000,000 EUR	– EUR	– EUR	– EUR	– EUR	119,000,000 EUR	– EUR
Cancellation of treasury shares	95,000,000 EUR	23,000,000 EUR	– EUR	– EUR	– EUR	– EUR	– EUR	– EUR	72,000,000 EUR	– EUR	—	—	—	—	—	—	—	—	—	—