v3.26.1
Equity (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Equity    
Share capital € 4,005 € 4,005
Retained earnings 33,209 32,552
Cumulative currency translation differences 1,936 8,081
Other reserves and equity instruments:    
Perpetual subordinated bonds 5,000 5,000
Legal reserve 959 959
Reserve for treasury shares 2,782 2,883
Reserve for OCI on cash flow hedging derivatives net of tax effect 42 (612)
Reserve for OCI on defined benefit plans net of tax effect (94) (91)
Reserve for OCI on equity-accounted investments 92 28
Reserve for OCI on other investments valued at fair value 104 160
Reserve for convertible bond issue 79 79
Treasury shares (2,782) (2,883)
Profit for the year 2,608 2,624
Equity attributable to equity holders of Eni € 47,940 € 52,785