v3.26.1
Reinsurance and Indemnification - Schedule of Effects of Reinsurance Ceded and Indemnification Programs on Property and Casualty Premiums Earned and Accident and Health Insurance Premiums and Contract Charges (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Property and casualty insurance premiums earned        
Reinsurance        
Property and casualty insurance premiums earned $ (689) $ (608) $ (1,294) $ (1,151)
Accident and health insurance premiums and contract charges        
Reinsurance        
Accident and health insurance premiums and contract charges $ (124) $ (10) $ (256) $ (23)