Reinsurance (Tables)

12 Months Ended

Dec. 31, 2022

Reinsurance Recoverable, Credit Quality Indicator


Reinsurance Recoverables by Credit Quality Indicator
	As of December 31, 2022								As of December 31, 2021
	Property and Casualty		Group Benefits		Corporate		Total		Property and Casualty		Group Benefits		Corporate		Total
AM Best Financial Strength Rating
A++	$	2,094	$	—	$	—	$	2,094	$	1,860	$	—	$	—	$	1,860
A+	2,169		239		261		2,669		1,999		237		275		2,511
A	763		1		—		764		713		—		—		713
A-	79		6		—		85		37		9		—		46
B++	616		—		2		618		639		—		3		642
Below B++	20		—		—		20		20		—		—		20
Total Rated by AM Best	5,741		246		263		6,250		5,268		246		278		5,792
Mandatory (Assigned) and Voluntary Risk Pools	218		—		—		218		239		—		—		239
Captives	319		—		—		319		331		—		—		331
Other not rated companies	279		5		—		284		255		5		—		260
Gross Reinsurance Recoverables	6,557		251		263		7,071		6,093		251		278		6,622
Allowance for uncollectible reinsurance	(102)		(1)		(2)		(105)		(96)		(1)		(2)		(99)
Net Reinsurance Recoverables	$	6,455	$	250	$	261	$	6,966	$	5,997	$	250	$	276	$	6,523

Reinsurance Recoverable, Allowance for Credit Loss


Allowance for Uncollectible Reinsurance
	As of December 31, 2022								As of December 31, 2021								As of December 31, 2020
	Property and Casualty		Group Benefits		Corporate		Total		Property and Casualty		Group Benefits		Corporate		Total		Property and Casualty		Group Benefits		Corporate		Total
Beginning allowance for uncollectible reinsurance	$	96	$	1	$	2	$	99	$	105	$	1	$	2	$	108	$	114	$	—	$	—	$	114
Beginning allowance for disputed amounts	54		—		—		54		53		—		—		53		66		—		—		66
Beginning ACL	42		1		2		45		52		1		2		55		48		—		—		48
Cumulative effect of accounting change [1]																	—		1		1		2
Adjusted beginning ACL	42		1		2		45		52		1		2		55		48		1		1		50
Current period provision (release)	—		—		—		—		(9)		—		—		(9)		3		—		1		4
Current period gross write-offs	—		—		—		—		(1)		—		—		(1)		—		—		—		—
Current period gross recoveries	—		—		—		—		—		—		—		—		1		—		—		1
Ending ACL	42		1		2		45		42		1		2		45		52		1		2		55
Ending allowance for disputed amounts	60		—		—		60		54		—		—		54		53		—		—		53
Ending allowance for uncollectible reinsurance	$	102	$	1	$	2	$	105	$	96	$	1	$	2	$	99	$	105	$	1	$	2	$	108

[1]Represents the adjustment to the ACL recorded on adoption of accounting guidance for credit losses on January 1, 2020. For further information refer to Note 1 - Basis of Presentation and Significant Accounting Policies.

Property and Casualty Insurance and Group Benefits Revenue

Insurance Revenues

Property and Casualty Insurance Revenue


	For the years ended December 31,
Premiums Written	2022		2021		2020
Direct	$	14,891	$	13,696	$	12,537
Assumed	718		631		577
Ceded	(1,490)		(1,378)		(1,209)
Net	$	14,119	$	12,949	$	11,905
Premiums Earned
Direct	$	14,328	$	13,204	$	12,551
Assumed	654		568		540
Ceded	(1,462)		(1,277)		(1,173)
Net	$	13,520	$	12,495	$	11,918

Group Benefits Revenue


	For the years ended December 31,
	2022		2021		2020
Gross earned premiums, fees and other considerations	$	5,988	$	5,663	$	5,245
Reinsurance assumed	175		128		387
Reinsurance ceded	(106)		(104)		(96)
Net earned premiums, fees and other considerations	$	6,057	$	5,687	$	5,536