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Securities, Federal Home Loan Bank Stock (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Federal Home Loan Bank Stock [Abstract]    
Other-than-temporary impairment losses $ 0 $ 0
Federal Home Loan Bank Stock [Member]    
Federal Home Loan Bank Stock [Abstract]    
Other-than-temporary impairment losses $ 0 $ 0