Long-duration Contracts - Weighted Average Durations and Interest Rates (Details)	Jun. 30, 2023	Jun. 30, 2022
Insurance [Abstract]
Weighted-average liability duration (in years)	9 years 7 months 6 days	10 years 4 months 24 days
Weighted-average interest accretion rate	3.50%	3.00%
Weighted-average current discount rate	5.50%	4.80%