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Deposits Deposits (Schedule of Maturities of Domestic Deposits of One Hundred Thousand or More) (Details) - Domestic certificates of deposit and other deposits - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Three Months or Less $ 436 $ 366
Over three months to six months 314 246
Over six months to twelve months 319 387
Over twelve months 74 205
Total $ 1,143 $ 1,204