Revenue from Contract with Customer (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Contract with Customer, Asset, after Allowance for Credit Loss	$ 5	$ 4
Contract with Customer, Liability	1	1
Contract with Customer, Liability, Revenue Recognized	1
Contract with Customer, Receivable, after Allowance for Credit Loss	7	2
Revenue from Contract with Customer, Excluding Assessed Tax	31	26
Contract with Customer, Performance Obligation Satisfied in Previous Period	6
Employer Stop Loss
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	9	8
Affinity Products
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	19	$ 18
AllTrans & Capacity Marine
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 3
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Employee Stop Loss Time When Base Commissions Recognized Begin and End In Months	17
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Employee Stop Loss Time When Base Commissions Recognized Begin and End In Months	20