| Accumulated Other Comprehensive Income Classified By Concepts [Table Text Block] |
The breakdown of the balance under this heading in the consolidated balance sheets is as follows: | | | | | | | | | | | | | | | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS). BREAKDOWN BY CONCEPTS (MILLIONS OF EUROS) | | | | | | | Notes | 2025 | 2024 | 2023 | | Items that will not be reclassified to profit or loss | | (2,505) | (1,988) | (2,105) | Actuarial gains (losses) on defined benefit pension plans | | (1,396) | (1,067) | (1,049) | | | | | | Fair value changes of equity instruments measured at fair value through other comprehensive income | 13.4 | (983) | (905) | (1,112) | | | | | | | | | | | | | | | | Fair value changes of financial liabilities at fair value through profit or loss attributable to changes in their credit risk | | (127) | (17) | 55 | | Items that may be reclassified to profit or loss | | (16,366) | (15,232) | (14,148) | Hedge of net investments in foreign operations (effective portion) | | (3,117) | (2,329) | (2,498) | | | | | | Mexican peso | | (3,454) | (2,697) | (3,147) | Turkish lira | | 368 | 394 | 670 | Other exchanges | | (31) | (25) | (21) | Foreign currency translation | | (13,340) | (12,702) | (11,419) | | | | | | Mexican peso | | (3,139) | (3,644) | (640) | Turkish lira | | (6,625) | (5,835) | (6,908) | Argentine peso | | (832) | (555) | (1,296) | Venezuelan bolivar | | (1,910) | (1,865) | (1,865) | Other exchanges | | (834) | (803) | (711) | Hedging derivatives. Cash flow hedges (effective portion) | | 311 | 370 | 133 | Fair value changes of debt instruments measured at fair value through other comprehensive income | 13.4 | (209) | (576) | (357) | Hedging instruments (non-designated items) | | (4) | — | — | Share of other recognized income and expense of investments in joint ventures and associates | | (7) | 5 | (8) | Total | | (18,871) | (17,220) | (16,254) |
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