Future policy benefits (Weighted average interest rates) (Details) - Segment Life [Member]	Jun. 30, 2023	Jun. 30, 2022
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	2.90%	2.40%
Current Discount Rate	5.80%	4.90%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	4.00%	4.40%
Current Discount Rate	5.30%	6.00%
Accident and Health Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.80%	3.90%
Current Discount Rate	6.30%	5.00%
Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.80%	3.30%
Current Discount Rate	5.10%	4.40%