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Federal Home Loan Bank Advances (Details) - Des Moines - USD ($)
$ in Billions
Dec. 31, 2024
Dec. 31, 2023
Federal Home Loan Bank, Advances, Branch of FHLB [Line Items]    
Carrying value of the loans pledged $ 2.6 $ 1.9
Availability under the secured line of credit $ 1.3 $ 1.0