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Risk Management (Details) - Schedule of mortage and other loan - Stage 2 [Member]
 12 Months Ended
Dec. 31, 2022
Mortgages [member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Mortgages 28.41%
Mortgages [member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Other loans 36.05%
Revolving Credit Cards [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Revolving (Credit cards) 11.28%
Overall monitornig SME [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, SME 36.05%
Other commercial, SME Clients considered to be substandard or in incompliance (pre-legal action)
Corporate Corporate SME [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, SME 19.60%
Corporate loans, SME Clients considered to be substandard or in incompliance (pre-legal action)
Corporate Middle market [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, Middle market 13.26%
Corporate loans, Middle market Clients considered to be substandard or in incompliance (pre-legal action)
Corporate Corporate and Investment Banking [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, Corporate and Investment Banking Santander Group criteria
Irregular portfolio > 30 days [Member] | Mortgages [member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Mortgages Irregular portfolio > 30 days
Irregular portfolio > 30 days [Member] | Revolving Credit Cards [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Revolving (Credit cards) Irregular portfolio > 30 days
Irregular portfolio > 30 days [Member] | Overall monitornig SME [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, SME Irregular portfolio > 30 days
Irregular portfolio > 30 days [Member] | Corporate Corporate SME [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, SME Irregular portfolio > 30 days
Irregular portfolio > 30 days [Member] | Corporate Middle market [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, Middle market Irregular portfolio > 30 days
Restructured marked for monitoring [Member] | Mortgages [member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Mortgages Restructured  marked for monitoring
Restructured marked for monitoring [Member] | Revolving Credit Cards [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, Revolving (Credit cards) Restructured  marked for monitoring
Restructured marked for monitoring [Member] | Overall monitornig SME [Member] | Collective Marks [Member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Other commercial, SME Restructured  marked for monitoring
Restructured marked for monitoring [Member] | Corporate Corporate SME [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, SME Restructured  marked for monitoring
Restructured marked for monitoring [Member] | Corporate Middle market [Member] | Expected credit losses individually assessed [member]  
Risk Management (Details) - Schedule of mortage and other loan [Line Items]  
Corporate loans, Middle market Restructured  marked for monitoring