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Note 8 - Fair Value - Reconciliation Of Changes In Fair Value Measurement - Acquisition, disposals and liquidation (Details) € in Millions | 12 Months Ended
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Dec. 31, 2018 EUR (€)
Acquisitions [Member] |
Fair value level 3 acquisition disposals liquidations line items |
Acquisition disposal liquidation assets | € 2,400
Acquisition disposal liquidation Liabilities | 2,716
Disposals [Member] |
Fair value level 3 acquisition disposals liquidations line items |
Acquisition disposal liquidation assets | 254
Liquidations [Member] |
Fair value level 3 acquisition disposals liquidations line items |
Acquisition disposal liquidation assets | 44
Acquisition disposal liquidation Liabilities | € 5

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- Definition The amount of Acquisition disposal liquidation assets + References No definition available. + Details
Name: | bbva_Acquisitiondisposalliquidationassets
Namespace Prefix: | bbva_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of Acquisition disposal liquidation Liabilities + References No definition available. + Details
Name: | bbva_Acquisitiondisposalliquidationliabilities
Namespace Prefix: | bbva_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | bbva_Fairvaluelevel3acquisitiondisposalsliquidationsLineItems
Namespace Prefix: | bbva_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | bbva_Level3ofacquisitiondisposalsandliquidationstaxisAxis=bbva_AcquisitionsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | bbva_Level3ofacquisitiondisposalsandliquidationstaxisAxis=bbva_DisposalsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | bbva_Level3ofacquisitiondisposalsandliquidationstaxisAxis=bbva_LiquidationsmemberMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |