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Note 3 - BBVA Group - Description Of Changes In Group (Details) - EUR (€) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Description Of Changes In Group [Line Items] |  |  |
Par Value Per Share | € 0.49 | € 0.49 | € 0.49

X
- References No definition available. + Details
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Namespace Prefix: | bbva_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | bbva_ParValuePerShare1
Namespace Prefix: | bbva_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration