See the note to the consolidated financial statements related to 23. Hedge accounting.
Note on Cash flow hedges
The effective portion of changes in the fair value of derivatives that are designated and qualify as cash flow hedges is recognized in other comprehensive income, under "L12805/L12810/L12820 - Cash flow reserve commodities/rate/change".
The gain or loss relating to the ineffective portion is recognized immediately in P/L, and is included in other financial gains and losses’ under "R53750 - Income related to interest rate derivative instruments" or "R53740 - Charges related to interest rate derivative instruments".