Investment Income (Tables)

12 Months Ended

Dec. 31, 2012

Investment Income And Gains And Losses Tables [Abstract]

Net investment income

(In millions)	2012		2011		2010
Fixed maturities	$	843	$	817	$	788
Equity securities		4		6		6
Commercial mortgage loans		192		218		221
Policy loans		74		86		90
Real estate		(2)		(2)		(2)
Other long-term investments		59		48		29
Short-term investments and cash		14		10		11
		1,184		1,183		1,143
Less investment expenses		40		37		38
Net investment income	$	1,144	$	1,146	$	1,105

Realized gains and losses on investments table

(In millions)	2012		2011		2010
Fixed maturities	$	48	$	50	$	87
Equity securities		4		(1)		5
Commercial mortgage loans		(9)		(16)		(23)
Real estate		(1)		(6)		3
Other investments, including derivatives		2		35		3
Realized investment gains (losses), before income taxes		44		62		75
Less income taxes (benefits)		13		21		25
Net realized investment gains (losses)	$	31	$	41	$	50

Impairment on investments table

(in millions)	2012		2011		2010
Credit related (1)	$	(20)	$	(28)	$	(38)
Other		(2)		(25)		(1)
Total	$	(22)	$	(53)	$	(39)
(1) Credit-related losses include other-than-temporary declines in fair value of fixed maturities and equity securities and changes in valuation reserves and asset write-downs related to commercial mortgage loans and investments in real estate entities. There were no credit losses on fixed maturities for which a portion of the impairment was recognized in other comprehensive income.

Realized investment results not reflected in the Company's revenues

(In millions)	2012		2011		2010
Separate accounts	$	206	$	210	$	191
Investment gains required to adjust future policy benefits for the run-off settlement annuity business	$	21	$	8	$	18

Sales of AFS fixed maturities table

(In millions)	2012		2011		2010
Proceeds from sales	$	591	$	876	$	826
Gross gains on sales	$	37	$	53	$	46
Gross losses on sales	$	(2)	$	(7)	$	(3)