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Goodwill and Other Assets (Textuals) (Details)
Dec. 31, 2020
EMEA Retail Reporting Unit  
Goodwill [Line Items]  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 15.00%
Eurasia Banking Entity [Member]  
Goodwill [Line Items]  
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 65.00%