Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property-liability insurance premiums earned	$ 1,982	$ 1,154	$ 1,136
Property and casualty insurance claims and claims expense
Reinsurance ceded amount	3,484	530	524
Accident and health insurance policy benefits
Reinsurance ceded amount	85	15	12
Interest credited to contractholder funds
Reinsurance ceded amount	1	0	0
Property and casualty insurance premiums
Property-liability insurance premiums earned	1,904	1,141	1,122
Accident and health insurance premiums
Life and annuity premiums and contract charges	$ 78	$ 13	$ 14