Name:	bbva_Debtinstrumentsheldfortrading
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	bbva_Depositscentralbanks
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	bbva_Depositscreditinstitutions
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	bbva_Depositscustomers
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of equity instruments held for trading. [Refer: Equity instrument at fair value through profit or loss, classified as held for trading

No definition available.

Name:	bbva_Equityinstrumentsheldfortrading
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	bbva_Financialassetsheldfortradingabstract
Namespace Prefix:	bbva_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

No definition available.

Name:	bbva_Financialliabilitiesheldfortradingabstract
Namespace Prefix:	bbva_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

No definition available.

Name:	bbva_Financialliabiltiesheldfortrading
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	bbva_Loansandadvancescentralbanks
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	bbva_Loansandadvancescreditinstitutions
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	bbva_Loansandadvancescustomers
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of short positions of financial liabilities held for trading. [Refer: Financial liabilities; Financial liabilities at fair value through profit or loss, classified as held for trading]

No definition available.

Name:	bbva_Shortpositionsfinancialliabilitiesheldfortrading
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

Name:	bbva_Totalfinancialassetsheldfortrading
Namespace Prefix:	bbva_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of derivative financial assets held for trading. [Refer: Derivative financial assets; Financial assets at fair value through profit or loss, classified as held for trading]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_55&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_DerivativeFinancialAssetsHeldForTrading
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of derivative financial liabilities held for trading. [Refer: Derivative financial liabilities; Financial liabilities at fair value through profit or loss that meet definition of held for trading]

Name:	ifrs-full_DerivativeFinancialLiabilitiesHeldForTrading
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	bbva_FinancialassetsandliabilitiesheldfortradingdebtsecuritiesaxisAxis=bbva_CentralbanksMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	bbva_FinancialassetsandliabilitiesheldfortradingdebtsecuritiesaxisAxis=bbva_GeneralgovernmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	bbva_FinancialassetsandliabilitiesheldfortradingdebtsecuritiesaxisAxis=bbva_CreditinstitutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	bbva_FinancialassetsandliabilitiesheldfortradingdebtsecuritiesaxisAxis=bbva_OtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	bbva_FinancialassetsandliabilitiesheldfortradingdebtsecuritiesaxisAxis=bbva_ReverserepurchaseagreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: