v3.26.1
Provisions - Schedule of status and changes of the defined benefit obligations, Other Foreign Subsidiaries (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of net defined benefit liability (asset) [line items]      
Benefits paid due to settlements € (133) € (20) € (2)
Other foreign subsidiaries | Present value of defined benefit obligation      
Disclosure of net defined benefit liability (asset) [line items]      
Net defined benefit liability (asset) at beginning of period 6,903 8,485 7,578
Incorporation of Group companies, net (6) 0 (20)
Current service cost 26 28 25
Interest cost 552 578 599
Pre-retirement cost 3 0 0
Effect of curtailment/settlement (2) (10) (2)
Benefits paid (726) (1,113) (730)
Contributions made by employees 4 4 3
Past service cost 0 2 1
Actuarial (gains)/losses 270 (191) 697
Demographic actuarial (gains)/losses 300 (1) 40
Financial actuarial (gains)/losses (30) (190) 657
Exchange differences and other items (5) (860) 336
Net defined benefit liability (asset) at end of period € 6,886 € 6,903 € 8,485