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Note 25 Plan assets breakdown (Details) - EUR (€)
€ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Cash or cash equivalents plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan € 24 € 38 € 56
Debt securities government bonds plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 2,394 2,707 2,668
Investment funds [member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 1 1 2
Insurance contracts plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 148 140 142
Total plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 2,566 2,887 2,869
Of which bank account in BBVA plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 3 4 4
Of which debt securities issued by BBVA plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan 0 0 0
Of which property occupied by BBVA plan assets breakdown [Member]      
Plan assets breakdown [Line Items]      
Assets of benefit plan € 0 € 0 € 0