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Risk Management (Details) - Schedules for calculation of C46 regulatory information
 12 Months Ended
Dec. 31, 2020
$ / shares
Maximum [Member]  
Risk Management (Details) - Schedules for calculation of C46 regulatory information [Line Items]  
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 30 days $ 0.48
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 90 days 0.66
Adjusted C46 FCCY as part of Tier-1 Capital, 1 – 30 days 0.33
Minimum [Member]  
Risk Management (Details) - Schedules for calculation of C46 regulatory information [Line Items]  
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 30 days (0.13)
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 90 days (0.06)
Adjusted C46 FCCY as part of Tier-1 Capital, 1 – 30 days 0.15
Average [Member]  
Risk Management (Details) - Schedules for calculation of C46 regulatory information [Line Items]  
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 30 days 0.15
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 90 days 0.27
Adjusted C46 FCCY as part of Tier-1 Capital, 1 – 30 days 0.22
Regulatory Limit [Member]  
Risk Management (Details) - Schedules for calculation of C46 regulatory information [Line Items]  
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 30 days 1.0
Adjusted C46 All CCYs as part of Tier-1 Capital, 1 – 90 days 2.0
Adjusted C46 FCCY as part of Tier-1 Capital, 1 – 30 days $ 1.0