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Equity (Details) - EUR (€) € in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Equity |  |
Share capital | € 4,005 | € 4,005
Retained earnings | 22,750 | 34,043
Cumulative currency translation differences | 6,530 | 3,895
Perpetual subordinated bonds | 5,000 | 3,000
Legal reserve | 959 | 959
Reserve for treasury shares | 958 | 581
Reserve for OCI on cash flow hedging derivatives net of the tax effect | (896) | (5)
Reserve for OCI on defined benefit plans net of tax effect | (117) | (158)
Reserve for OCI on equity-accounted investments | 54 | 85
Reserve for OCI on other investments valued at fair value | 141 | 36
Other reserves | 190 | 190
Treasury shares | (958) | (581)
Net profit (loss) for the year | 5,821 | (8,635)
Equity attributable to equity holders of Eni | € 44,437 | € 37,415

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