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Note 14 Debt securities by rating (Details) - EUR (€) € in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | [1]
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Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 100.00% | 100.00% | 100.00% |
Debt instruments held at amortised cost | € 59,014 | € 49,462 | € 36,639 | [2],[3],[4]
BBVA AAA Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 3.20% | 3.70% | 8.40% |
Debt instruments held at amortised cost | € 1,907 | € 1,829 | € 3,068 |
BBVA AA plus [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 5.80% | 6.30% | 0.60% |
Debt instruments held at amortised cost | € 3,418 | € 3,096 | € 217 |
BBVA AA Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 0.10% | 0.30% | 0.20% |
Debt instruments held at amortised cost | € 69 | € 142 | € 82 |
BBVA AA Minus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 1.70% | 0.10% | 0.20% |
Debt instruments held at amortised cost | € 1,027 | € 60 | € 76 |
BBVA A plus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 0.00% | 0.10% | 0.00% |
Debt instruments held at amortised cost | € 22 | € 25 | € 13 |
BBVA A Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 0.80% | 0.90% | 1.40% |
Debt instruments held at amortised cost | € 497 | € 444 | € 524 |
BBVA A Minus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 58.70% | 50.00% | 46.50% |
Debt instruments held at amortised cost | € 34,652 | € 24,739 | € 17,050 |
BBVA BBB Plus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 7.70% | 13.40% | 12.90% |
Debt instruments held at amortised cost | € 4,518 | € 6,615 | € 4,710 |
BBVA BBB Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 7.00% | 9.20% | 11.20% |
Debt instruments held at amortised cost | € 4,105 | € 4,551 | € 4,091 |
BBVA BBB minus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 1.50% | 1.10% | 1.00% |
Debt instruments held at amortised cost | € 890 | € 548 | € 351 |
BBVA BB Plus Rating [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 12.20% | 13.40% | 15.80% |
Debt instruments held at amortised cost | € 7,199 | € 6,642 | € 5,789 |
Unclassified [Member] |  |  |  |
Debt securities by rating [Line Items] |  |  |  |
Percentage of debt securities at amortized cost by rating | 1.20% | 1.60% | 1.80% |
Debt instruments held at amortised cost | € 711 | € 772 | € 667 |
[1] | (1) Balances corresponding to 2022 have been restated according to IFRS 17 (see Note 1.3).
[2] | (1) Balances corresponding to 2022 have been restated according to IFRS 17 (see Note 1.3).
[3] | (1) This includes redesignations to the heading "Financial assets at fair value through other comprehensive income" due to the application of IFRS 17 (see Note 1.3).
[4] | (1) Balances corresponding to 2022 have been restated according to IFRS 17 (see Note 1.3).

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