Business Dispositions (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended	9 Months Ended	0 Months Ended	3 Months Ended	9 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended		12 Months Ended	9 Months Ended	0 Months Ended	9 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jun. 27, 2013 Hartford Life International Limited [Member]	Sep. 30, 2013 Hartford Life International Limited [Member]	Jan. 02, 2013 Retirement Plans [Member]	Sep. 30, 2013 Retirement Plans [Member]	Sep. 30, 2013 Retirement Plans [Member]	Sep. 30, 2012 Retirement Plans [Member]	Jan. 02, 2013 Individual Life [Member]	Sep. 30, 2013 Individual Life [Member]	Sep. 30, 2013 Individual Life [Member]	Sep. 30, 2012 Individual Life [Member]	Dec. 31, 2012 Individual Life [Member]	Sep. 30, 2013 Parent [Member] Retirement [Member]	Jan. 02, 2013 Parent [Member] Individual Life [Member]	Sep. 30, 2013 Parent [Member] Individual Life [Member]	Jan. 02, 2013 Mass Mutual [Member] Retirement Plans [Member]	Sep. 30, 2013 Minimum [Member] Mass Mutual [Member]	Sep. 30, 2013 Minimum [Member] Prudential [Member]	Sep. 30, 2013 Maximum [Member] Mass Mutual [Member]	Sep. 30, 2013 Maximum [Member] Prudential [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Fees and Commissions							$ 355,000,000				$ 615,000,000						$ 590,000,000
Discontinued operations gain loss on disposal net of tax			224,000,000						45,000,000
Reinsurance loss on dispositions	0	0	1,561,000,000	0	285				69,000,000				0			565,000,000		927,000,000
Goodwill, Written off Related to Sale of Business Unit									87,000,000				163,000,000
Gain (Loss) on Disposition of Assets						0							927,000,000
Net realized capital gains (losses)	7,000,000	(24,000,000)	17,000,000	(72,000,000)					634,000,000
Policyholder Liabilities							9,200,000,000				8,300,000,000
Separate Accounts Liabilities	62,420,000,000		62,420,000,000				26,300,000,000				5,300,000,000
Disposal Group, Assets of Business Transferred under Contractual Arrangement																			9,300,000,000
Other assets						(316,000,000)	100,000,000				1,800,000,000
Sale of Retirement Plans, Transition Period																				18 months		24 months
Revenues	804,000,000	1,170,000,000	3,300,000,000	3,478,000,000				193,000,000		0		306,000,000		0
Net Income (Loss) Attributable to Parent	201,000,000	203,000,000	546,000,000	579,000,000				(7,000,000)		9		1,000,000		43
Goodwill, Impairment Loss															100,000,000
Invested Assets Transferred, Carrying Value											7,600,000,000
Disposal Group, Assets of Business Transferred under Modified Coinsurance Arrangement											1,400,000,000
Other liabilities						$ (9,000,000)					$ 1,900,000,000
Sale of Life Insurance Products, Transition Period																					18 months		24 months