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Note 14 - Financial assets at amortised cost- Loans Interest Rate Sensitibility and advances to customers (Details) - EUR (€) | Dec. 31, 2020 | Dec. 31, 2019
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Fixed Interest Rate |  |
Disclosure Of Loans Interest Rate Sensitivity And Advances To Customers LineItems |  |
National Security | € 46,104,000,000 | € 55,920,000,000
Foreign Security | 66,444,000,000 | 68,915,000,000
Total Financial Assets | 112,548,000,000 | 124,835,000,000
Variable Interest Rate [Member] |  |
Disclosure Of Loans Interest Rate Sensitivity And Advances To Customers LineItems |  |
National Security | 86,710,000,000 | 79,329,000,000
Foreign Security | 41,452,000,000 | 97,765,000,000
Total Financial Assets | 128,162,000,000 | 177,095,000,000
Total Member |  |
Disclosure Of Loans Interest Rate Sensitivity And Advances To Customers LineItems |  |
National Security | 132,814,000,000 | 135,249,000,000
Foreign Security | 107,895,000,000 | 166,680,000,000
Total Financial Assets | € 240,710,000,000 | € 301,929,000,000

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