Investment Income (Tables)

6 Months Ended

Jun. 30, 2015

Investments [Abstract]

Realized Investment Gains and Losses

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(In millions)	2015		2014		2015		2014
Fixed maturities	$	12	$	4	$	19	$	12
Equity securities		1		-		14		17
Commercial mortgage loans		(3)		(4)		2		(4)
Other investments, including derivatives		11		65		59		82
Realized investment gains before income taxes		21		65		94		107
Less income taxes		8		22		33		37
Net realized investment gains	$	13	$	43	$	61	$	70

Asset write-downs and changes in valuation reserves

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(In millions)	2015		2014		2015		2014
Credit-related (1)	$	(6)	$	(9)	$	(12)	$	(15)
Other		(9)		(1)		(14)		(1)
Total	$	(15)	$	(10)	$	(26)	$	(16)
(1) Credit-related losses include other-than-temporary declines in the fair values of fixed maturities, increases in valuation reserves on commercial mortgage loans and asset write-downs related to investments in real estate entities.

Sales of available-for-sale fixed maturities and equity securities

	Three Months Ended				Six Months Ended
	June 30,				June 30,
(In millions)	2015		2014		2015		2014
Proceeds from sales	$	784	$	316	$	1,177	$	510
Gross gains on sales	$	24	$	3	$	51	$	25
Gross losses on sales	$	2	$	1	$	4	$	1