Future policy benefits (Weighted average interest rates) (Details) - Segment Life [Member]	Jun. 30, 2025	Jun. 30, 2024
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.00%	2.90%
Current Discount Rate	5.90%	5.70%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.40%	3.20%
Current Discount Rate	3.90%	4.60%
Accident and Health Insurance Product Line [Member]
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	4.00%	3.70%
Current Discount Rate	5.80%	6.30%
Insurance, Other
Liability for Future Policy Benefit, Activity [Line Items]
Interest Accretion Rate	3.20%	2.70%
Current Discount Rate	3.30%	4.20%