Future policy benefits (Weighted average interest rates) (Details) - Segment Life [Member]	Jun. 30, 2024	Jun. 30, 2023
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	2.90%	2.90%
Current Discount Rate	5.70%	5.90%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.20%	4.00%
Current Discount Rate	4.60%	5.30%
Accident and Health Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.70%	3.80%
Current Discount Rate	6.30%	6.40%
Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	2.70%	3.80%
Current Discount Rate	4.20%	5.10%