v3.26.1
Investments accounted for using the equity method - Summary of Key Items Which Have Not Been Audited (Details) - Associates and joint ventures - EUR (€)
€ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Disclosure of transactions between related parties [line items]      
Net sales and other revenues € 2,657 € 887  
Net Income (61) 24  
Other comprehensive income 83 (1)  
Comprehensive income 22 € 23  
Non-current assets 16,673   € 15,013
Current assets 2,925   2,859
Total assets 19,598   17,872
Equity attributable to equity holders of OPAL JV Co 5,958   5,380
Equity attributable to non-controlling interests 436   490
Total equity 6,394   5,870
Non-current liabilities 11,575   9,850
Current liabilities 1,629   2,152
Total liabilities 13,204   12,002
Total equity and liabilities € 19,598   € 17,872