| Disclosure of Financial Assets At Fair Value Through Other Comprehensive Income [Text Block] |
Financial assets at fair value through other comprehensive incomeBreakdown of the balance The breakdown of the balance of financial assets at fair value through other comprehensive income by type of financial instrument as of December 31, 2025, 2024 and 2023 is as follows: | | | | | | | | | | | | | | | FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (MILLIONS OF EUROS) | | | | | | | Notes | 2025 | 2024 | 2023 | Equity instruments | 7.2.2 | 1,360 | 1,451 | 1,217 | Debt securities | | 57,001 | 57,526 | 60,963 | Loans and advances | 7.2.2 | 448 | 25 | 26 | | Total ⁽¹⁾ | 8.1 | 58,809 | 59,002 | 62,205 | Of which: loss allowances of debt securities | | (45) | (112) | (84) | Of which: loss allowances of loans and advances | | (65) | — | — |
(1) During financial years 2025, 2024 and 2023, there have been no significant reclassifications from the heading “Financial assets at fair value through other comprehensive income” to other headings or from other headings to “Financial assets at fair value through other comprehensive income”. Equity instrumentsThe breakdown of the balance under the heading "Equity instruments" of the consolidated balance sheets as of December 31, 2025, 2024 and 2023 is as follows: | | | | | | | | | | | | | | | | | | | | | FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME. EQUITY INSTRUMENTS (MILLIONS OF EUROS) | | | | | | | | | | | | | | | | | | 2025 | | | | 2024 | | | | 2023 | | | | | | | | | | | | | | | Listed equity instruments | | | | | | | | | | | | | Spanish companies shares | | | | 992 | | | | 1,100 | | | | 987 | Foreign companies shares | | | | 131 | | | | 131 | | | | 111 | Mexico | | | | 19 | | | | 27 | | | | 33 | The United States | | | | 85 | | | | 79 | | | | 52 | Turkey | | | | 4 | | | | 9 | | | | 6 | Other countries | | | | 22 | | | | 17 | | | | 20 | | Subtotal listed equity instruments | | | | 1,123 | | | | 1,231 | | | | 1,098 | | Unlisted equity instruments | | | | | | | | | | | | | Spanish companies shares | | | | 53 | | | | 46 | | | | 12 | Foreign companies shares | | | | 184 | | | | 174 | | | | 106 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Subtotal unlisted equity instruments | | | | 237 | | | | 220 | | | | 119 | | | | | | | | | | | | | | | Total | | | | 1,360 | | | | 1,451 | | | | 1,217 |
Debt securitiesThe breakdown of the balance under the heading “Debt securities” of the consolidated financial statements as of December 31, 2025, 2024 and 2023, broken down by issuers, is as follows: | | | | | | | | | | | | | | | | | | | | | FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME. DEBT SECURITIES (MILLIONS OF EUROS) | | | | | | | | | | | | | | | | | | 2025 | | | | 2024 | | | | 2023 | | | | | | | | | | | | | | | Domestic debt securities | | | | | | | | | | | | | Government and other government agency | | | | 10,090 | | | | 10,383 | | | | 13,757 | | | | | | | | | | | | | | Credit institutions | | | | 518 | | | | 695 | | | | 901 | Other issuers | | | | 389 | | | | 397 | | | | 454 | | Subtotal | | | | 10,997 | | | | 11,475 | | | | 15,111 | | Foreign debt securities | | | | | | | | | | | | | | Mexico | | | | 20,995 | | | | 20,461 | | | | 21,714 | Government and other government agency | | | | 19,752 | | | | 19,313 | | | | 20,364 | | | | | | | | | | | | | | Credit institutions | | | | 876 | | | | 759 | | | | 886 | Other issuers | | | | 367 | | | | 389 | | | | 464 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The United States | | | | 6,214 | | | | 6,552 | | | | 6,344 | Government and other government agency | | | | 3,621 | | | | 3,703 | | | | 3,174 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Credit institutions | | | | 48 | | | | 41 | | | | 88 | Other issuers | | | | 2,546 | | | | 2,808 | | | | 3,082 | | Turkey | | | | 2,907 | | | | 2,849 | | | | 2,459 | Government and other government agency | | | | 2,907 | | | | 2,837 | | | | 2,445 | | | | | | | | | | | | | | | | | | | | | | | | | | | Other issuers | | | | — | | | | 12 | | | | 14 | | Other countries | | | | 15,888 | | | | 16,190 | | | | 15,336 | Other foreign governments and government agency | | | | 10,277 | | | | 10,059 | | | | 8,961 | Central banks | | | | 208 | | | | 370 | | | | 508 | Credit institutions | | | | 2,204 | | | | 1,921 | | | | 1,895 | Other issuers | | | | 3,199 | | | | 3,840 | | | | 3,971 | | Subtotal | | | | 46,004 | | | | 46,052 | | | | 45,852 | | Total | | | | 57,001 | | | | 57,526 | | | | 60,963 |
The credit ratings of the issuers of debt securities as of December 31, 2025, 2024 and 2023 are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | DEBT SECURITIES BY RATING | | | | | | | | | | | 2025 | | 2024 | | 2023 | | Fair value (Millions of Euros) | % | | Fair value (Millions of Euros) | % | | Fair value (Millions of euros) | % | AAA | 2,015 | 3.5 | % | | 1,370 | 2.4 | % | | 1,000 | 1.6 | % | AA+ | 4,148 | 7.3 | % | | 4,170 | 7.2 | % | | 3,685 | 6.0 | % | AA | 410 | 0.7 | % | | 261 | 0.5 | % | | 384 | 0.6 | % | AA- | 1,854 | 3.3 | % | | 1,061 | 1.8 | % | | 642 | 1.1 | % | A+ | 1,065 | 1.9 | % | | 905 | 1.6 | % | | 1,798 | 3.0 | % | A | 11,235 | 19.7 | % | | 2,007 | 3.5 | % | | 1,747 | 2.9 | % | A- | 1,613 | 2.8 | % | | 12,018 | 20.9 | % | | 16,009 | 26.3 | % | BBB+ | 24,493 | 43.0 | % | | 19,897 | 34.6 | % | | 22,854 | 37.5 | % | BBB | 3,586 | 6.3 | % | | 9,212 | 16.0 | % | | 8,327 | 13.7 | % | BBB- | 1,640 | 2.9 | % | | 922 | 1.6 | % | | 858 | 1.4 | % | BB+ or below | 4,916 | 8.6 | % | | 5,227 | 9.1 | % | | 3,480 | 5.7 | % | Unclassified | 27 | 0.0 | % | | 474 | 0.8 | % | | 178 | 0.3 | % | | Total | 57,001 | 100.0 | % | | 57,526 | 100.0 | % | | 60,963 | 100.0 | % |
Gains/lossesThe changes in the gains/losses (net of taxes) in 2025, 2024 and 2023 of debt securities recognized under the equity heading “Accumulated other comprehensive income (loss) – Items that may be reclassified to profit or loss – Fair value changes of debt instruments measured at fair value through other comprehensive income” and equity instruments recognized under the equity heading “Accumulated other comprehensive income (loss) – Items that will not be reclassified to profit or loss –Fair value changes of equity instruments measured at fair value through other comprehensive income” in the consolidated balance sheets are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | OTHER COMPREHENSIVE INCOME - CHANGES IN GAINS (LOSSES) (MILLIONS OF EUROS) | | | | | | | | | | | | Debt securities | | Equity instruments | | Notes | 2025 | 2024 | 2023 | | 2025 | 2024 | 2023 | | Balance at the beginning | | (576) | (357) | (809) | | (905) | (1,112) | (1,194) | Valuation gains and losses | | 96 | (568) | 659 | | (76) | 228 | 80 | Amounts transferred to income | | 434 | 247 | 5 | | | | | Amounts transferred to Reserves | | | | | | 1 | — | 2 | Income tax and other | | (163) | 101 | (211) | | (3) | (20) | (1) | | Balance at the end | 30 | (209) | (576) | (357) | | (983) | (905) | (1,112) |
In 2025, 2024 and 2023, equity instruments presented a €76 million loss, a €228 million gain and a €80 million gain, respectively, in the heading “Accumulated other comprehensive income (loss) - Items that will not be reclassified to profit and loss - Fair value changes of equity instruments measured at fair value through other comprehensive income”, mainly due to changes in Telefonica’s share price. Likewise, the valuations of debt securities have been affected mainly by the evolution of interest rates.
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