Reinsurance (Tables)

12 Months Ended

Dec. 31, 2021

Reinsurance Recoverable, Credit Quality Indicator


Reinsurance Recoverables by Credit Quality Indicator
	As of December 31, 2021								As of December 31, 2020
	Property and Casualty		Group Benefits		Corporate		Total		Property and Casualty		Group Benefits		Corporate		Total

AM Best Financial Strength Rating
A++	$	1,860	$	—	$	—	$	1,860	$	1,598	$	—	$	—	$	1,598
A+	1,999		237		275		2,511		1,788		230		305		2,323
A	713		—		—		713		638		—		—		638
A-	37		9		—		46		37		9		—		46
B++	639		—		3		642		666		—		3		669
Below B++	20		—		—		20		21		1		—		22
Total Rated by AM Best	5,268		246		278		5,792		4,748		240		308		5,296
Mandatory (Assigned) and Voluntary Risk Pools	239		—		—		239		259		—		—		259
Captives	331		—		—		331		305		—		—		305
Other not rated companies	255		5		—		260		254		5		—		259
Gross Reinsurance Recoverables	6,093		251		278		6,622		5,566		245		308		6,119
Allowance for uncollectible reinsurance	(96)		(1)		(2)		(99)		(105)		(1)		(2)		(108)
Net Reinsurance Recoverables	$	5,997	$	250	$	276	$	6,523	$	5,461	$	244	$	306	$	6,011

Reinsurance Recoverable, Allowance for Credit Loss


Allowance for Uncollectible Reinsurance
	As of December 31, 2021								As of December 31, 2020
	Property and Casualty		Group Benefits		Corporate		Total		Property and Casualty		Group Benefits		Corporate		Total
Beginning allowance for uncollectible reinsurance	$	105	$	1	$	2	$	108	$	114	$	—	$	—	$	114
Beginning allowance for disputed amounts	53		—		—		53		66		—		—		66
Beginning ACL	52		1		2		55		48		—		—		48
Cumulative effect of accounting change [1]									—		1		1		2
Adjusted beginning ACL	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		52		1		2		55
Ending allowance for disputed amounts	54		—		—		54		53		—		—		53
Ending allowance for uncollectible reinsurance	$	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	2021		2020		2019
Direct	$	13,696	$	12,537	$	12,190
Assumed	631		577		371
Ceded	(1,378)		(1,209)		(978)
Net	$	12,949	$	11,905	$	11,583
Premiums Earned
Direct	$	13,204	$	12,551	$	12,010
Assumed	568		540		416
Ceded	(1,277)		(1,173)		(936)
Net	$	12,495	$	11,918	$	11,490

Group Benefits Revenue


	For the years ended December 31,
	2021		2020		2019
Gross earned premiums, fees and other considerations	$	5,663	$	5,245	$	4,122
Reinsurance assumed	128		387		1,572
Reinsurance ceded	(104)		(96)		(91)
Net earned premiums, fees and other considerations	$	5,687	$	5,536	$	5,603