Commitments and Contingent Liabilities, Risk Participation Agreements (Details) $ in Millions	12 Months Ended
	Jun. 30, 2023 USD ($) Counterparty	Jun. 30, 2022 USD ($)
Risk Participation Agreements [Abstract]
Credit exposure risk participations out	$ 0	$ 0
Credit exposure risk participations in	$ 0	$ 0
Number of counterparties | Counterparty	4
Minimum [Member]
Risk Participation Agreements [Abstract]
Credit exposure term	4 years
Maximum [Member]
Risk Participation Agreements [Abstract]
Credit exposure term	14 years