Insurance - Weighted-Average Interest Rates for the Liability of Future Policy Benefits (Details)	Jun. 30, 2023	Jun. 30, 2022
Term and Whole Life
Additional Liability, Long-Duration Insurance [Line Items]
Interest accretion rate	5.27%	5.26%
Current discount rate	5.19%	4.70%
Accidental Death and Disability Protection
Additional Liability, Long-Duration Insurance [Line Items]
Interest accretion rate	4.86%	4.86%
Current discount rate	5.17%	4.61%