v3.26.1
Other long-term liabilities - Additional Information (Detail) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Other Non Current Liabilities [Abstract]
Customer collateral deposits
€ 17
€ 18
X
- Definition
Other long-term liabilities, including customer collateral deposits.
+ References
No definition available.
+ Details
Name:
sgbaf_OtherLongTermLiabilitiesIncludingCustomerCollateralDeposits
Namespace Prefix:
sgbaf_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
sgbaf_OtherNonCurrentLiabilitiesAbstract
Namespace Prefix:
sgbaf_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration