Segment Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Reconciliation of Net Income from Segments to Consolidated

Net Income (Loss)

	Three Months Ended March 31,
	2022		2021
Commercial Lines	$	383	$	129
Personal Lines	77		135
Property & Casualty Other Operations	8		(13)
Group Benefits	(6)		9
Hartford Funds	42		47
Corporate	(59)		(58)
Net income	445		249
Preferred stock dividends	5		5
Net income available to common stockholders	$	440	$	244

Reconciliation of Revenue from Segments to Consolidated

Revenues

	Three Months Ended March 31,
	2022		2021
Earned premiums and fee income:
Commercial Lines
Workers’ compensation	$	835	$	738
Liability	424		375
Marine	61		58
Package business	435		393
Property	190		200
Professional liability	178		155
Bond	72		69
Assumed reinsurance	100		68
Automobile	200		188
Total Commercial Lines	2,495		2,244
Personal Lines
Automobile	499		512
Homeowners	229		230
Total Personal Lines [1]	728		742
Group Benefits
Group disability	806		739
Group life	597		602
Other	87		77
Total Group Benefits	1,490		1,418
Hartford Funds
Mutual fund and Exchange-Traded Funds ("ETF")	265		259
Talcott Resolution life and annuity separate accounts [2]	22		23
Total Hartford Funds	287		282
Corporate	13		12
Total earned premiums and fee income	5,013		4,698
Net investment income	509		509
Net realized gains (losses)	(145)		80
Other revenues	16		12
Total revenues	$	5,393	$	5,299

[1]For the three months ended March 31, 2022 and 2021, AARP members accounted for earned premiums of $667 and $676, respectively.

[2]Represents revenues earned for investment advisory services on the life and annuity separate account assets under management ("AUM") sold in May 2018 that is still managed by the Company's Hartford Funds segment.

Disaggregation of Revenue [Table Text Block]

Revenue from Non-Insurance Contracts with Customers

		Three Months Ended March 31,
	Revenue Line Item	2022		2021
Commercial Lines
Installment billing fees	Fee income	$	9	$	9
Personal Lines
Installment billing fees	Fee income	8		8
Insurance servicing revenues	Other revenues	17		19
Group Benefits
Administrative services	Fee income	45		44
Hartford Funds
Advisor, distribution and other management fees	Fee income	287		282
Corporate
Investment management and other fees	Fee income	13		12
Total non-insurance revenues with customers		$	379	$	374