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Regulatory Capital and Other Regulatory Matters (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Capital Requirements on Foreign Financial Institutions [Line Items]    
Assets $ 117,778 $ 113,786
International Regulated Bank And Finance Companies    
Capital Requirements on Foreign Financial Institutions [Line Items]    
Assets $ 5,200 $ 5,100