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Note 29 - Treasury Shares Shares Accepted In Pledge and Treasury Stock (Details) - EUR (€) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Shares Accepted In Pledge Abstract |  |  |
Number Of Shares Accepted In Pledge | 18,266,509 | 23,807,398 | 25,306,229
Par Value Per Share | € 0.49 | € 0.49 | € 0.49
PercentageShareCapitalOfPledgeShares | 0.27% | 0.36% | 0.38%

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Balance Type: | na
Period Type: | duration

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Namespace Prefix: | bbva_
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Balance Type: | na
Period Type: | duration

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