v3.26.1
Provisions - Disclosure of expected rate of return assumptions (Details) - Spain
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Post-employment plans      
Disclosure of net defined benefit liability (asset) [line items]      
Expected rate of return on plan assets 3.75% 3.00% 3.35%
Expected rate of return on reimbursement rights 3.75% 3.00% 3.35%
Other long term employee benefits      
Disclosure of net defined benefit liability (asset) [line items]      
Expected rate of return on plan assets 3.75% 3.00% 3.35%