Investments (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

Marketable Securities

Fixed Maturities and Equity Securities

Available-for-sale and fair value option (“FVO”) fixed maturities and equity securities were as follows as of June 30, 2013:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Embedded Derivatives(2)			Fair Value		OTTI(3)
Fixed maturities:
U.S. Treasuries	$	5,610.1	$	377.2	$	64.6	$	—		$	5,922.7	$	—
U.S. Government agencies and authorities		702.0		36.6		0.5		—			738.1		—
State, municipalities and political subdivisions		278.3		15.0		0.8		—			292.5		—
U.S. corporate securities		35,244.5		2,387.9		565.5		—			37,066.9		13.0
Foreign securities:(1)
Government		1,080.8		53.7		42.7		—			1,091.8		—
Other		13,945.1		888.4		177.4		—			14,656.1		—
Total foreign securities		15,025.9		942.1		220.1		—			15,747.9		—
Residential mortgage-backed securities:
Agency		5,510.0		483.0		52.8		101.9			6,042.1		1.1
Non-Agency		1,353.2		165.4		42.9		59.2			1,534.9		118.9
Total Residential mortgage-backed securities		6,863.2		648.4		95.7		161.1			7,577.0		120.0
Commercial mortgage-backed securities		4,014.6		414.9		3.6		—			4,425.9		4.4
Other asset-backed securities		2,163.0		97.8		52.5		(7.3	)		2,201.0		5.2
Total fixed maturities, including securities pledged		69,901.6		4,919.9		1,003.3		153.8			73,972.0		142.6
Less: Securities pledged		1,300.8		71.6		15.4		—			1,357.0		—
Total fixed maturities		68,600.8		4,848.3		987.9		153.8			72,615.0		142.6
Equity securities:
Common stock		188.9		1.1		0.2		—			189.8		—
Preferred stock		51.9		39.3		—		—			91.2		—
Total equity securities		240.8		40.4		0.2		—			281.0		—
Total fixed maturities and equity securities investments	$	68,841.6	$	4,888.7	$	988.1	$	153.8		$	72,896.0	$	142.6

⁽¹⁾  Primarily U.S. dollar denominated.

⁽²⁾  Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.

⁽³⁾  Represents Other-than Temporary-Impairments (“OTTI”) reported as a component of Other comprehensive income.

Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2012:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Embedded Derivatives(2)			Fair Value		OTTI(3)
Fixed maturities:
U.S. Treasuries	$	5,194.3	$	691.2	$	1.8	$	—		$	5,883.7	$	—
U.S. Government agencies and authorities		645.4		78.8		—		—			724.2		—
State, municipalities and political subdivisions		320.2		32.6		—		—			352.8		—
U.S. corporate securities		32,986.1		4,226.6		48.8		—			37,163.9		13.4
Foreign securities(1):
Government		1,069.4		125.2		4.6		—			1,190.0		—
Other		13,321.8		1,527.4		54.7		—			14,794.5		—
Total foreign securities		14,391.2		1,652.6		59.3		—			15,984.5		—
Residential mortgage-backed securities:
Agency		5,071.6		633.3		14.8		156.0			5,846.1		1.2
Non-Agency		1,612.6		198.6		71.9		81.6			1,820.9		139.6
Total Residential mortgage-backed securities		6,684.2		831.9		86.7		237.6			7,667.0		140.8
Commercial mortgage-backed securities		4,438.9		513.6		6.1		—			4,946.4		4.4
Other asset-backed securities		2,536.4		128.4		90.0		(10.2	)		2,564.6		15.4
Total fixed maturities, including securities pledged		67,196.7		8,155.7		292.7		227.4			75,287.1		174.0
Less: Securities pledged		1,470.0		139.6		4.1		—			1,605.5		—
Total fixed maturities		65,726.7		8,016.1		288.6		227.4			73,681.6		174.0
Equity securities:
Common stock		194.4		13.2		1.0		—			206.6		—
Preferred stock		103.5		30.0		—		—			133.5		—
Total equity securities		297.9		43.2		1.0		—			340.1		—
Total fixed maturities and equity securities investments	$	66,024.6	$	8,059.3	$	289.6	$	227.4		$	74,021.7	$	174.0

⁽¹⁾  Primarily U.S. dollar denominated.

⁽²⁾  Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Condensed Consolidated Statements of Operations.

⁽³⁾  Represents OTTI reported as a component of Other comprehensive income.

Available-for-sale and fair value option (“FVO”) fixed maturities and equity securities were as follows as of December 31, 2012:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Embedded Derivatives(2)			Fair Value		OTTI(3)
Fixed maturities:
U.S. Treasuries	$	5,194.3	$	691.2	$	1.8	$	—		$	5,883.7	$	—
U.S. government agencies and authorities		645.4		78.8		—		—			724.2		—
State, municipalities and political subdivisions		320.2		32.6		—		—			352.8		—
U.S. corporate securities		32,986.1		4,226.6		48.8		—			37,163.9		13.4
Foreign securities(1):
Government		1,069.4		125.2		4.6		—			1,190.0		—
Other		13,321.8		1,527.4		54.7		—			14,794.5		—
Total foreign securities		14,391.2		1,652.6		59.3		—			15,984.5		—
Residential mortgage-backed securities:
Agency		5,071.6		633.3		14.8		156.0			5,846.1		1.2
Non-Agency		1,612.6		198.6		71.9		81.6			1,820.9		139.6
Total Residential mortgage-backed securities		6,684.2		831.9		86.7		237.6			7,667.0		140.8
Commercial mortgage-backed securities		4,438.9		513.6		6.1		—			4,946.4		4.4
Other asset-backed securities		2,536.4		128.4		90.0		(10.2	)		2,564.6		15.4
Total fixed maturities, including securities pledged		67,196.7		8,155.7		292.7		227.4			75,287.1		174.0
Less: Securities pledged		1,470.0		139.6		4.1		—			1,605.5		—
Total fixed maturities		65,726.7		8,016.1		288.6		227.4			73,681.6		174.0
Equity securities:
Common stock		194.4		13.2		1.0		—			206.6		—
Preferred stock		103.5		30.0		—		—			133.5		—
Total equity securities		297.9		43.2		1.0		—			340.1		—
Total fixed maturities and equity securities investments	$	66,024.6	$	8,059.3	$	289.6	$	227.4		$	74,021.7	$	174.0

⁽¹⁾  Primarily U.S. dollar denominated.

⁽²⁾  Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Consolidated Statements of Operations.

⁽³⁾  Represents OTTI reported as a component of Other comprehensive income.

Available-for-sale and FVO fixed maturities and equity securities were as follows as of December 31, 2011:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Embedded Derivatives(2)			Fair Value		OTTI(3)
Fixed maturities:
U.S. Treasuries	$	5,283.8	$	688.7	$	—	$	—		$	5,972.5	$	—
U.S. government agencies and authorities		643.1		84.7		—		—			727.8		—
State, municipalities and political subdivisions		375.1		21.2		2.4		—			393.9		—
U.S. corporate securities		30,486.5		3,095.6		109.0		—			33,473.1		—
Foreign securities(1):
Government		834.9		92.9		9.9		—			917.9		—
Other		13,207.0		1,078.0		135.5		—			14,149.5		0.1
Total foreign securities		14,041.9		1,170.9		145.4		—			15,067.4		0.1
Residential mortgage-backed securities:
Agency		5,754.8		865.4		11.9		182.2			6,790.5		1.7
Non-Agency		2,180.2		228.2		228.9		78.1			2,257.6		197.6
Total Residential mortgage-backed securities		7,935.0		1,093.6		240.8		260.3			9,048.1		199.3
Commercial mortgage-backed securities		5,387.1		247.5		149.2		—			5,485.4		6.3
Other asset-backed securities		2,727.0		62.1		270.7		(17.2	)		2,501.2		20.4
Total fixed maturities, including securities pledged		66,879.5		6,464.3		917.5		243.1			72,669.4		226.1
Less: Securities pledged		2,068.7		189.4		4.6		—			2,253.5		—
Total fixed maturities		64,810.8		6,274.9		912.9		243.1			70,415.9		226.1
Equity securities:
Common stock		222.1		14.7		5.6		—			231.2		—
Preferred stock		98.5		24.1		—		—			122.6		—
Total equity securities		320.6		38.8		5.6		—			353.8		—
Total fixed maturities and equity securities investments	$	65,131.4	$	6,313.7	$	918.5	$	243.1		$	70,769.7	$	226.1

⁽¹⁾  Primarily U.S. dollar denominated.

⁽²⁾  Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Other net realized capital gains (losses) in the Consolidated Statements of Operations.

⁽³⁾  Represents OTTI reported as a component of Other comprehensive income.

Investments Classifed by Contractual Maturity Date

The amortized cost and fair value of fixed maturities, including securities pledged, as of June 30, 2013, are shown below by contractual maturity. Actual maturities may differ from contractual maturities as securities may be restructured, called, or prepaid. Mortgage-backed securities (“MBS”) and Other asset-backed securities (“ABS”) are shown separately because they are not due at a single maturity date.

	Amortized Cost		Fair Value
Due to mature:
One year or less	$	2,390.5	$	2,471.6
After one year through five years		15,121.5		15,862.9
After five years through ten years		19,373.8		19,928.2
After ten years		19,975.0		21,505.4
Mortgage-backed securities		10,877.8		12,002.9
Other asset-backed securities		2,163.0		2,201.0
Fixed maturities, including securities pledged	$	69,901.6	$	73,972.0

Mortgage-backed securities (“MBS”) and Other asset-backed securities (“ABS”) are shown separately because they are not due at a single maturity date.

	Amortized Cost		Fair Value
Due to mature:
One year or less	$	2,820.9	$	2,918.1
After one year through five years		14,380.3		15,353.4
After five years through ten years		17,372.7		19,179.7
After ten years		18,963.3		22,657.9
Mortgage-backed securities		11,123.1		12,613.4
Other asset-backed securities		2,536.4		2,564.6
Fixed maturities, including securities pledged	$	67,196.7	$	75,287.1

U.S. and Foreign Corporate Securities by Industry

The following tables set forth the composition of the U.S. and foreign corporate securities within the fixed maturity portfolio by industry category as of the dates indicated:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Fair Value
June 30, 2013
Communications	$	4,043.7	$	332.7	$	56.7	$	4,319.7
Financial		6,086.4		537.6		76.2		6,547.8
Industrial and other companies		28,528.9		1,637.2		490.6		29,675.5
Utilities		9,069.8		672.7		94.7		9,647.8
Transportation		1,460.8		96.1		24.7		1,532.2
Total	$	49,189.6	$	3,276.3	$	742.9	$	51,723.0
December 31, 2012
Communications	$	3,609.5	$	563.4	$	2.4	$	4,170.5
Financial		5,912.9		749.4		46.7		6,615.6
Industrial and other companies		26,613.3		3,063.3		24.2		29,652.4
Utilities		8,893.1		1,210.5		28.9		10,074.7
Transportation		1,279.1		167.4		1.3		1,445.2
Total	$	46,307.9	$	5,754.0	$	103.5	$	51,958.4

The following tables set forth the composition of the U.S. and foreign corporate securities within the fixed maturity portfolio by industry category as of December 31, 2012 and 2011:

	Amortized Cost		Gross Unrealized Capital Gains		Gross Unrealized Capital Losses		Fair Value
2012
Communications	$	3,609.5	$	563.4	$	2.4	$	4,170.5
Financial		5,912.9		749.4		46.7		6,615.6
Industrial and other companies		26,613.3		3,063.3		24.2		29,652.4
Utilities		8,893.1		1,210.5		28.9		10,074.7
Transportation		1,279.1		167.4		1.3		1,445.2
Total	$	46,307.9	$	5,754.0	$	103.5	$	51,958.4
2011
Communications	$	3,561.5	$	395.4	$	12.5	$	3,944.4
Financial		6,309.6		450.5		133.9		6,626.2
Industrial and other companies		24,071.1		2,252.6		67.2		26,256.5
Utilities		8,535.8		948.7		26.2		9,458.3
Transportation		1,215.5		126.4		4.7		1,337.2
Total	$	43,693.5	$	4,173.6	$	244.5	$	47,622.6

Schedule of Unrealized Loss on Investments

Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of June 30, 2013:

	Six Months or  Less Below Amortized Cost				More Than Six Months and Twelve Months or Less Below Amortized Cost				More Than Twelve Months Below Amortized Cost				Total
	Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
U.S. Treasuries	$	2,626.9	$	58.2	$	45.5	$	6.4	$	—	$	—	$	2,672.4	$	64.6
U.S. Government agencies and authorities		56.9		0.5		—		—		—		—		56.9		0.5
U.S. corporate, state and municipalities		8,739.5		457.8		723.2		82.7		195.4		25.8		9,658.1		566.3
Foreign		3,316.3		185.9		103.4		9.2		201.6		25.0		3,621.3		220.1
Residential mortgage-backed		1,807.4		39.2		195.9		7.7		384.8		48.8		2,388.1		95.7
Commercial mortgage-backed		—		—		3.6		—		40.9		3.6		44.5		3.6
Other asset-backed		257.0		1.7		14.9		0.1		423.2		50.7		695.1		52.5
Total	$	16,804.0	$	743.3	$	1,086.5	$	106.1	$	1,245.9	$	153.9	$	19,136.4	$	1,003.3

Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of December 31, 2012:

	Six Months or Less Below Amortized Cost				More Than Six Months and Twelve Months or Less Below Amortized Cost				More Than Twelve Months Below Amortized Cost				Total
	Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
U.S. Treasuries	$	451.2	$	1.8	$	—	$	—	$	—	$	—	$	451.2	$	1.8
U.S. Government agencies and authorities		—		—		—		—		—		—		—		—
U.S. corporate, state and municipalities		1,333.4		19.2		116.5		3.0		231.2		26.6		1,681.1		48.8
Foreign		360.2		12.7		59.8		7.4		314.9		39.2		734.9		59.3
Residential mortgage-backed		369.3		6.4		42.0		2.1		585.1		78.2		996.4		86.7
Commercial mortgage-backed		22.0		0.2		15.3		1.7		44.4		4.2		81.7		6.1
Other asset-backed		70.2		—		7.0		1.2		609.2		88.8		686.4		90.0
Total	$	2,606.3	$	40.3	$	240.6	$	15.4	$	1,784.8	$	237.0	$	4,631.7	$	292.7

Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of December 31, 2012:

	Six Months or Less Below Amortized Cost				More Than Six Months and Twelve Months or Less Below Amortized Cost				More Than Twelve Months Below Amortized Cost				Total
	Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
2012
U.S. Treasuries	$	451.2	$	1.8	$	—	$	—	$	—	$	—	$	451.2	$	1.8
U.S. corporate, state and municipalities		1,333.4		19.2		116.5		3.0		231.2		26.6		1,681.1		48.8
Foreign		360.2		12.7		59.8		7.4		314.9		39.2		734.9		59.3
Residential mortgage-backed		369.3		6.4		42.0		2.1		585.1		78.2		996.4		86.7
Commercial mortgage-backed		22.0		0.2		15.3		1.7		44.4		4.2		81.7		6.1
Other asset-backed		70.2		—		7.0		1.2		609.2		88.8		686.4		90.0
Total	$	2,606.3	$	40.3	$	240.6	$	15.4	$	1,784.8	$	237.0	$	4,631.7	$	292.7

Unrealized capital losses (including noncredit impairments), along with the fair value of fixed maturity securities, including securities pledged, by market sector and duration were as follows as of December 31, 2011:

	Six Months or Less Below Amortized Cost				More Than Six Months and Twelve Months or Less Below Amortized Cost				More Than Twelve Months Below Amortized Cost				Total
	Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses		Fair Value		Unrealized Capital Losses
2011
U.S. Treasuries	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
U.S. corporate, state and municipalities		1,812.9		55.7		173.2		10.4		393.4		45.3		2,379.5		111.4
Foreign		1,177.6		66.2		80.2		7.3		655.8		71.9		1,913.6		145.4
Residential mortgage-backed		426.6		5.1		388.3		16.1		865.1		219.6		1,680.0		240.8
Commercial mortgage-backed		338.3		6.4		1,131.6		87.6		241.4		55.2		1,711.3		149.2
Other asset-backed		306.9		5.3		165.8		42.7		668.5		222.7		1,141.2		270.7
Total	$	4,062.3	$	138.7	$	1,939.1	$	164.1	$	2,824.2	$	614.7	$	8,825.6	$	917.5

Schedule of Loan-to-Value, Credit Enhancement and Fixed Floating Rates for RMBS and Other ABS in a Gross Unrealized Loss Position

The following tables summarize loan-to-value, credit enhancement and fixed floating rate details for RMBS and Other ABS in a gross unrealized loss position as of the dates indicated:

	Loan-to-Value Ratio
	Amortized Cost				Unrealized Capital Losses
June 30, 2013	< 20%		> 20%		< 20%		> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	253.3	$	33.7	$	13.8	$	8.7
Non-agency RMBS 90% - 100%		242.4		37.5		13.6		9.3
Non-agency RMBS 80% - 90%		186.3		22.4		12.3		6.7
Non-agency RMBS < 80%		358.7		17.3		23.7		4.4
Agency RMBS		1,827.5		19.8		46.4		6.3
Other ABS (Non-RMBS)		230.3		2.2		2.3		0.7
Total RMBS and Other ABS	$	3,098.5	$	132.9	$	112.1	$	36.1
	Credit Enhancement Percentage
	Amortized Cost				Unrealized Capital Losses
June 30, 2013	< 20%		> 20%		< 20%		> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	618.2	$	61.3	$	46.7	$	15.9
Non-agency RMBS 5% - 10%		107.3		0.1		4.0		—
Non-agency RMBS 0% - 5%		194.6		8.1		6.1		2.0
Non-agency RMBS 0%		120.6		41.4		6.6		11.2
Agency RMBS		1,827.5		19.8		46.4		6.3
Other ABS (Non-RMBS)		230.3		2.2		2.3		0.7
Total RMBS and Other ABS	$	3,098.5	$	132.9	$	112.1	$	36.1
	Fixed Rate/Floating Rate
	Amortized Cost				Unrealized Capital Losses
June 30, 2013	< 20%		> 20%		< 20%		> 20%
Fixed Rate	$	1,782.9	$	11.0	$	43.1	$	3.3
Floating Rate		1,315.6		121.9		69.0		32.8
Total	$	3,098.5	$	132.9	$	112.1	$	36.1

⁽¹⁾  For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.

	Loan-to-Value Ratio
	Amortized Cost				Unrealized Capital Losses
December 31, 2012	< 20%		> 20%		< 20%		> 20%
RMBS and Other ABS(1)
Non-agency RMBS > 100%	$	562.3	$	203.8	$	39.5	$	58.0
Non-agency RMBS 90% - 100%		134.2		35.2		12.8		10.7
Non-agency RMBS 80% - 90%		78.9		46.9		7.5		12.1
Non-agency RMBS < 80%		288.9		17.5		14.0		5.5
Agency RMBS		398.0		8.1		11.0		3.8
Other ABS (Non-RMBS)		83.4		2.3		1.2		0.6
Total RMBS and Other ABS	$	1,545.7	$	313.8	$	86.0	$	90.7
	Credit Enhancement Percentage
	Amortized Cost				Unrealized Capital Losses
December 31, 2012	< 20%		> 20%		< 20%		> 20%
RMBS and Other ABS(1)
Non-agency RMBS 10% +	$	706.8	$	187.1	$	53.8	$	51.2
Non-agency RMBS 5% - 10%		187.6		2.2		6.8		0.7
Non-agency RMBS 0% - 5%		89.4		12.3		7.6		4.2
Non-agency RMBS 0%		80.5		101.8		5.6		30.2
Agency RMBS		398.0		8.1		11.0		3.8
Other ABS (Non-RMBS)		83.4		2.3		1.2		0.6
Total RMBS and Other ABS	$	1,545.7	$	313.8	$	86.0	$	90.7
	Fixed Rate/Floating Rate
	Amortized Cost				Unrealized Capital Losses
December 31, 2012	< 20%		> 20%		< 20%		> 20%
Fixed Rate	$	669.4	$	33.3	$	14.2	$	10.2
Floating Rate		876.3		280.5		71.8		80.5
Total	$	1,545.7	$	313.8	$	86.0	$	90.7

⁽¹⁾  For purposes of this table, subprime mortgages are included in Non-agency RMBS categories.

The following tables summarize loan-to-value, credit enhancement and fixed floating rate details for RMBS and Other ABS in a gross unrealized loss position as of December 31, 2012 and 2011:

	Loan-to-Value Ratio
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2012
RMBS and Other ABS
Non-agency RMBS > 100%	$	562.3	$	203.8	$	39.5	$	58.0
Non-agency RMBS 90% – 100%		134.2		35.2		12.8		10.7
Non-agency RMBS 80% – 90%		78.9		46.9		7.5		12.1
Non-agency RMBS < 80%		288.9		17.5		14.0		5.5
Agency RMBS		398.0		8.1		11.0		3.8
Other ABS (Non-RMBS)		83.4		2.3		1.2		0.6
Total RMBS and Other ABS	$	1,545.7	$	313.8	$	86.0	$	90.7
	Credit Enhancement Percentage
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2012
RMBS and Other ABS
Non-agency RMBS 10% +	$	706.8	$	187.1	$	53.8	$	51.2
Non-agency RMBS 5% – 10%		187.6		2.2		6.8		0.7
Non-agency RMBS 0% – 5%		89.4		12.3		7.6		4.2
Non-agency RMBS 0%		80.5		101.8		5.6		30.2
Agency RMBS		398.0		8.1		11.0		3.8
Other ABS (Non-RMBS)		83.4		2.3		1.2		0.6
Total RMBS and Other ABS	$	1,545.7	$	313.8	$	86.0	$	90.7
	Fixed Rate/Floating Rate
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2012
Fixed Rate	$	669.4	$	33.3	$	14.2	$	10.2
Floating Rate		876.3		280.5		71.8		80.5
Total	$	1,545.7	$	313.8	$	86.0	$	90.7
	Loan-to-Value Ratio
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2011
RMBS and Other ABS
Non-agency RMBS > 100%	$	728.7	$	706.0	$	86.5	$	237.8
Non-agency RMBS 90% – 100%		258.3		162.2		24.2		60.6
Non-agency RMBS 80% – 90%		120.4		80.8		9.9		23.6
Non-agency RMBS < 80%		492.8		112.8		19.5		36.0
Agency RMBS		450.7		4.8		10.2		2.0
Other ABS (Non-RMBS)		212.7		2.5		0.6		0.6
Total RMBS and Other ABS	$	2,263.6	$	1,069.1	$	150.9	$	360.6
	Credit Enhancement Percentage
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2011
RMBS and Other ABS
Non-agency RMBS 10% +	$	793.4	$	761.4	$	77.3	$	256.4
Non-agency RMBS 5% – 10%		509.8		45.4		35.2		15.0
Non-agency RMBS 0% – 5%		249.2		150.0		21.6		45.8
Non-agency RMBS 0%		47.8		105.0		6.0		40.8
Agency RMBS		450.7		4.8		10.2		2.0
Other ABS (Non-RMBS)		212.7		2.5		0.6		0.6
Total RMBS and Other ABS	$	2,263.6	$	1,069.1	$	150.9	$	360.6
	Fixed Rate/Floating Rate
	Amortized Cost				Unrealized Capital Losses
	< 20%		> 20%		< 20%		> 20%
2011
Fixed Rate	$	1,108.1	$	147.6	$	49.5	$	50.5
Floating Rate		1,155.5		921.5		101.4		310.1
Total	$	2,263.6	$	1,069.1	$	150.9	$	360.6

Risk Exposure to Securities Based on Credit Quality

The following tables summarize the Company’s exposure to subprime mortgage-backed securities by credit quality using NAIC designations, ARO ratings and vintage year as of the dates indicated:

	% of Total Subprime Mortgage-backed Securities
	NAIC Designation			ARO Ratings			Vintage
June 30, 2013
	1	58.3	%	AAA	0.4	%	2007	28.7	%
	2	8.3	%	AA	1.1	%	2006	32.7	%
	3	22.7	%	A	5.4	%	2005 and prior	38.6	%
	4	9.5	%	BBB	6.0	%		100.0	%
	5	1.0	%	BB and below	87.1	%
	6	0.2	%		100.0	%
		100.0	%
December 31, 2012
	1	60.3	%	AAA	1.1	%	2007	29.1	%
	2	11.9	%	AA	1.0	%	2006	36.8	%
	3	16.7	%	A	5.4	%	2005 and prior	34.1	%
	4	8.1	%	BBB	6.0	%		100.0	%
	5	2.8	%	BB and below	86.5	%
	6	0.2	%		100.0	%
		100.0	%

The Company’s exposure to Alt-A mortgages is included in Residential mortgage-backed securities in the “Fixed Maturities and Equity Securities” section above. As of June 30, 2013, the fair value and gross unrealized losses related to the Company’s exposure to Alt-A RMBS aggregated to $376.3 and $25.8, respectively, representing 0.5% of total fixed maturities, including securities pledged, based on fair value. As of December 31, 2012, the fair value and gross unrealized losses related to the Company’s exposure to Alt-A RMBS aggregated to $411.3 and $47.9, respectively, representing 0.5% of total fixed maturities, including securities pledged, based on fair value.

The following tables summarize the Company’s exposure to Alt-A residential mortgage-backed securities by credit quality using NAIC designations, ARO ratings and vintage year as of the dates indicated:

	% of Total Alt-A Mortgage-backed Securities
	NAIC Designation			ARO Ratings			Vintage
June 30, 2013
	1	43.6	%	AAA	0.1	%	2007	21.1	%
	2	12.9	%	AA	0.3	%	2006	25.9	%
	3	24.4	%	A	1.8	%	2005 and prior	53.0	%
	4	15.6	%	BBB	3.7	%		100.0	%
	5	2.8	%	BB and below	94.1	%
	6	0.7	%		100.0	%
		100.0	%
December 31, 2012
	1	34.1	%	AAA	0.2	%	2007	20.4	%
	2	11.9	%	AA	1.2	%	2006	25.9	%
	3	18.8	%	A	1.5	%	2005 and prior	53.7	%
	4	26.9	%	BBB	4.1	%		100.0	%
	5	7.5	%	BB and below	93.0	%
	6	0.8	%		100.0	%
		100.0	%

Commercial Mortgage-backed and Other Asset-backed Securities

As of June 30, 2013 and December 31, 2012, the fair value of the Company’s CMBS totaled $4.4 billion and $4.9 billion, respectively. As of June 30, 2013 and December 31, 2012, the gross unrealized losses related to CMBS totaled $3.6 and $6.1, respectively. CMBS investments represent pools of commercial mortgages that are broadly diversified across property types and geographical areas.

The following tables summarize the Company’s exposure to CMBS holdings by credit quality using NAIC designations, ARO ratings and vintage year as of the dates indicated:

	% of Total CMBS
	NAIC Designation			ARO Ratings		Vintage
June 30, 2013
		1	98.7%	AAA	37.3%	2008	0.2%
		2	0.9%	AA	18.4%	2007	37.0%
		3	0.3%	A	11.1%	2006	31.4%
		4	0.1%	BBB	18.1%	2005 and prior	31.4%
		5	—%	BB and below	15.1%		100.0%
		6	—%		100.0%
			100.0%
December 31, 2012
		1	98.3%	AAA	38.1%	2008	0.3%
		2	1.4%	AA	17.2%	2007	37.4%
		3	0.2%	A	11.2%	2006	30.2%
		4	0.1%	BBB	17.8%	2005 and prior	32.1%
		5	—%	BB and below	15.7%		100.0%
		6	—%		100.0%
			100.0%

As of June 30, 2013 and December 31, 2012, the fair value of the Company’s Other ABS, excluding subprime exposure, totaled $1.4 billion and $1.6 billion, respectively. As of June 30, 2013 and December 31, 2012, the gross unrealized losses related to Other ABS, excluding subprime exposure, totaled $3.0 and $1.8, respectively.

As of June 30, 2013, Other ABS was also broadly diversified both by type and issuer with credit card receivables, nonconsolidated collateralized loan obligations and automobile receivables, comprising 40.0%, 3.5% and 35.5%, respectively, of total Other ABS, excluding subprime exposure. As of December 31, 2012, Other ABS was also broadly diversified both by type and issuer with credit card receivables, nonconsolidated collateralized loan obligations and automobile receivables, comprising 40.5%, 4.1% and 33.3%, respectively, of total Other ABS, excluding subprime exposure.

The following tables summarize the Company’s exposure to Other ABS holdings, excluding subprime exposure, by credit quality using NAIC designations, ARO ratings and vintage year as of the dates indicated:

	% of Total Other ABS
	NAIC Designation			ARO Ratings			Vintage
June 30, 2013
	1	98.4	%	AAA	92.7	%	2013	3.6	%
	2	0.9	%	AA	2.1	%	2012	23.5	%
	3	—	%	A	3.6	%	2011	12.6	%
	4	—	%	BBB	0.9	%	2010	5.4	%
	5	—	%	BB and below	0.7	%	2009	2.2	%
	6	0.7	%		100.0	%	2008	5.0	%
		100.0	%				2007 and prior	47.7	%
								100.0	%
December 31, 2012
	1	97.7	%	AAA	91.9	%	2012	24.6	%
	2	1.7	%	AA	0.9	%	2011	14.9	%
	3	0.1	%	A	4.9	%	2010	5.8	%
	4	—	%	BBB	1.7	%	2009	2.1	%
	5	—	%	BB and below	0.6	%	2008	5.9	%
	6	0.5	%		100.0	%	2007	18.4	%
		100.0	%				2006 and prior	28.3	%
								100.0	%

The following tables summarize the Company’s exposure to subprime mortgage-backed securities by credit quality using NAIC designations, ARO ratings and vintage year as of December 31, 2012 and 2011:

	% of Total Subprime Mortgage-backed Securities
	NAIC Designation			ARO Ratings			Vintage
2012
	1	60.3	%	AAA	1.1	%	2007	29.1	%
	2	11.9	%	AA	1.0	%	2006	36.8	%
	3	16.7	%	A	5.4	%	2005 and prior	34.1	%
	4	8.1	%	BBB	6.0	%		100.0	%
	5	2.8	%	BB and below	86.5	%
	6	0.2	%		100.0	%
		100.0	%
2011
	1	78.1	%	AAA	2.9	%	2007	26.9	%
	2	4.7	%	AA	1.2	%	2006	41.2	%
	3	13.4	%	A	4.5	%	2005 and prior	31.9	%
	4	2.7	%	BBB	8.8	%		100.0	%
	5	0.5	%	BB and below	82.6	%
	6	0.6	%		100.0	%
		100.0	%

The following tables summarize the Company’s exposure to Alt-A residential mortgage-backed securities by credit quality using NAIC designations, ARO ratings and vintage year as of December 31, 2012 and 2011:

	% of Total Alt-A Mortgage-backed Securities
	NAIC Designation			ARO Ratings			Vintage
2012
	1	34.1	%	AAA	0.2	%	2007	20.4	%
	2	11.9	%	AA	1.2	%	2006	25.9	%
	3	18.8	%	A	1.5	%	2005 and prior	53.7	%
	4	26.9	%	BBB	4.1	%		100.0	%
	5	7.5	%	BB and below	93.0	%
	6	0.8	%		100.0	%
		100.0	%
2011
	1	38.7	%	AAA	1.0	%	2007	18.8	%
	2	11.0	%	AA	2.3	%	2006	25.3	%
	3	16.4	%	A	7.5	%	2005 and prior	55.9	%
	4	24.0	%	BBB	3.9	%		100.0	%
	5	9.0	%	BB and below	85.3	%
	6	0.9	%		100.0	%
		100.0	%

The following tables summarize the Company’s exposure to CMBS holdings by credit quality using NAIC designations, ARO ratings and vintage year as of December 31, 2012 and 2011:

	% of Total CMBS
	NAIC Designation			ARO Ratings			Vintage
2012
	1	98.3	%	AAA	38.1	%	2008	0.3	%
	2	1.4	%	AA	17.2	%	2007	37.4	%
	3	0.2	%	A	11.2	%	2006	30.2	%
	4	0.1	%	BBB	17.8	%	2005 and prior	32.1	%
	5	—		BB and below	15.7	%		100.0	%
	6	—			100.0	%
		100.0	%
2011
	1	92.7	%	AAA	47.3	%	2008	0.3	%
	2	2.6	%	AA	10.1	%	2007	33.4	%
	3	3.6	%	A	16.5	%	2006	26.5	%
	4	0.7	%	BBB	13.5	%	2005 and prior	39.8	%
	5	—		BB and below	12.6	%		100.0	%
	6	0.4	%		100.0	%
		100.0	%

The following tables summarize the Company’s exposure to Other ABS holdings, excluding subprime exposure, by credit quality using NAIC designations, ARO ratings and vintage year as of December 31, 2012 and 2011:

	% of Total Other ABS
	NAIC Designation			ARO Ratings			Vintage
2012
	1	97.7	%	AAA	91.9	%	2012	24.6	%
	2	1.7	%	AA	0.9	%	2011	14.9	%
	3	0.1	%	A	4.9	%	2010	5.8	%
	4	—		BBB	1.7	%	2009	2.1	%
	5	—		BB and below	0.6	%	2008	5.9	%
	6	0.5	%		100.0	%	2007	18.4	%
		100.0	%				2006	9.5	%
							2005 and prior	18.8	%
								100.0	%
2011
	1	96.1	%	AAA	86.6	%	2011	18.0	%
	2	2.3	%	AA	3.1	%	2010	9.6	%
	3	—		A	4.9	%	2009	6.4	%
	4	0.2	%	BBB	3.8	%	2008	7.0	%
	5	1.4	%	BB and below	1.6	%	2007	24.8	%
	6	—			100.0	%	2006	9.5	%
		100.0	%				2005 and prior	24.7	%
								100.0	%

Schedule of Mortgage Loans Real Estate and Valuation Allowance

The following table summarizes the Company’s investment in mortgage loans as of the dates indicated:

	June 30, 2013			December 31, 2012
Commercial mortgage loans	$	8,933.2		$	8,666.2
Collective valuation allowance		(4.1	)		(3.9	)
Total net commercial mortgage loans	$	8,929.1		$	8,662.3

There were no impairments taken on the mortgage loan portfolio for the six months ended June 30, 2013 and 2012.

The following table summarizes the activity in the allowance for losses for all commercial mortgage loans for the periods indicated:

	June 30, 2013		December 31, 2012
Collective valuation allowance for losses, balance at January 1	$	3.9	$	4.4
Addition to (reduction of) allowance for losses		0.2		(0.5	)
Collective valuation allowance for losses, end of period	$	4.1	$	3.9

The following table summarizes the Company’s investment in mortgage loans as of December 31, 2012 and 2011:

	2012			2011
Commercial mortgage loans	$	8,666.2		$	8,695.5
Collective valuation allowance		(3.9	)		(4.4	)
Total net commercial mortgage loans	$	8,662.3		$	8,691.1

The following table summarizes the activity in the allowance for losses for all commercial mortgage loans for the years ended December 31, 2012 and 2011:

	2012			2011
Collective valuation allowance for losses, beginning of period	$	4.4		$	7.0
Addition to (reduction of) allowance for losses		(0.5	)		(2.6	)
Collective valuation allowance for losses, end of period	$	3.9		$	4.4

Impaired Financing Receivables

The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of the dates indicated:

	June 30, 2013		December 31, 2012
Impaired loans without allowances for losses	$	16.8	$	16.8
Unpaid principal balance of impaired loans		31.9		31.9

The carrying values and unpaid principal balances of impaired mortgage loans were as follows as of December 31, 2012 and 2011:

	2012		2011
Impaired loans with allowances for losses	$	—	$	—
Impaired loans without allowances for losses		16.8		48.7
Subtotal		16.8		48.7
Less: Allowances for losses on impaired loans		—		—
Impaired loans, net	$	16.8	$	48.7
Unpaid principal balance of impaired loans	$	31.9	$	63.8

Past Due Financing Receivables, Impaired Financing Receivables, Troubled Debt Restructurings on Financing Receivables, and Loans in Foreclosure

The following table presents information on loans in foreclosure as of the dates indicated:

	June 30, 2013		December 31, 2012
Loans in foreclosure, at amortized cost(1)	$	9.0	$	9.0

⁽¹⁾ Amounts included in Loans in foreclosure, which were also impaired, are included in the Impaired loans, average investment during the period as shown in the table below.

The following table presents information on impaired loans, restructured loans, loans 90 days or more past due and loans in foreclosure as of December 31, 2012, 2011 and 2010:

	2012		2011		2010
Impaired loans, average investment during the period	$	32.7	$	43.7	$	72.5
Troubled debt restructured loans(1)		—		15.7		—
Loans 90 days or more past due, interest no longer accruing, at amortized cost		—		16.6		2.7
Loans in foreclosure, at amortized cost		9.0		—		—
Unpaid principal balance of loans 90 days or more past due, interest no longer accruing		—		21.6		4.9

⁽¹⁾  Amounts included in Troubled debt restructured loans, Loans 90 days or more past due and Loans in foreclosure, which were also impaired, are included in the Impaired loans, average investment during the period.

Interest Income Recognized on Impaired and Restructured Loans

The following table presents information on the average investment during the period in impaired loans and interest income recognized on impaired and troubled debt restructured loans for the periods indicated:

	Six Months Ended June 30,
	2013		2012
Impaired loans, average investment during period (amortized cost)	$	16.8	$	36.6
Interest income recognized on impaired loans, on an accrual basis		0.3		0.3
Interest income recognized on impaired loans, on a cash basis		0.3		0.5
Interest income recognized on troubled debt restructured loans, on an accrual basis		—		0.3

The following tables present information on interest income recognized on impaired and troubled debt restructured loans for the years ended December 31, 2012, 2011 and 2010:

	2012		2011		2010
Interest income recognized on impaired loans, on an accrual basis	$	0.7	$	1.8	$	3.7
Interest income recognized on impaired loans, on a cash basis		0.8		1.8		4.2
Interest income recognized on troubled debt restructured loans, on an accrual basis		0.3		0.3		—

Loans Receivable, Grouped by Loan to Value and Debt Service Coverage Ratio

The following table presents the LTV ratios as of the dates indicated:

	June 30, 2013(1)		December 31, 2012(1)
Loan-to-Value Ratio:
0% - 50%	$	1,803.4	$	1,987.9
50% - 60%		2,416.2		2,425.2
60% - 70%		4,271.5		3,736.1
70% - 80%		408.6		481.7
80% and above		33.5		35.3
Total Commercial mortgage loans	$	8,933.2	$	8,666.2

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

The following table presents the DSC ratios as of the dates indicated:

	June 30, 2013(1)		December 31, 2012(1)
Debt Service Coverage Ratio:
Greater than 1.5x	$	6,091.6	$	5,953.7
1.25x - 1.5x		1,477.0		1,336.3
1.0x - 1.25x		1,012.5		992.7
Less than 1.0x		343.1		374.6
Commercial mortgage loans secured by land or construction loans		9.0		8.9
Total Commercial mortgage loans	$	8,933.2	$	8,666.2

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

The following table presents the LTV ratios as of December 31, 2012 and 2011:

	2012(1)		2011(1)
Loan-to-Value Ratio:
0% – 50%	$	1,987.9	$	2,535.2
50% – 60%		2,425.2		2,479.4
60% – 70%		3,736.1		2,991.9
70% – 80%		481.7		621.2
80% and above		35.3		67.8
Total Commercial mortgage loans	$	8,666.2	$	8,695.5

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

The following table presents the DSC ratios as of December 31, 2012 and 2011:

	2012(1)		2011(1)
Debt Service Coverage Ratio:
Greater than 1.5x	$	5,953.7	$	5,710.3
1.25x – 1.5x		1,336.3		1,547.2
1.0x – 1.25x		992.7		1,082.2
Less than 1.0x		374.6		339.1
Commercial mortgage loans secured by land or construction loans		8.9		16.7
Total Commercial mortgage loans	$	8,666.2	$	8,695.5

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

Mortgage Loans by Geographic Location of Collateral

Properties collateralizing mortgage loans are geographically dispersed throughout the United States, as well as diversified by property type, as reflected in the following tables as of the dates indicated:

	June 30, 2013(1)					December 31, 2012(1)
	Gross Carrying Value		% of Total			Gross Carrying Value		% of Total
Commercial Mortgage Loans by U.S. Region:
Pacific	$	2,090.1		23.3	%	$	1,973.9		22.8	%
South Atlantic		1,706.6		19.1	%		1,687.6		19.4	%
West South Central		1,246.3		14.0	%		1,176.3		13.6	%
Middle Atlantic		1,142.9		12.8	%		1,059.5		12.2	%
East North Central		1,006.7		11.3	%		962.8		11.1	%
Mountain		711.1		8.0	%		718.2		8.3	%
West North Central		502.7		5.6	%		537.5		6.2	%
New England		322.1		3.6	%		334.6		3.9	%
East South Central		204.7		2.3	%		215.8		2.5	%
Total Commercial mortgage loans	$	8,933.2		100.0	%	$	8,666.2		100.0	%

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

Properties collateralizing mortgage loans are geographically dispersed throughout the United States, as well as diversified by property type, as reflected in the following tables as of December 31, 2012 and 2011:

	2012(1)					2011(1)
	Gross Carrying Value		% of Total			Gross Carrying Value		% of Total
Commercial Mortgage Loans by U.S. Region:
Pacific	$	1,973.9		22.8	%	$	2,140.2		24.6	%
South Atlantic		1,687.6		19.4	%		1,555.4		17.9	%
Middle Atlantic		1,059.5		12.2	%		1,124.0		12.9	%
East North Central		962.8		11.1	%		1,010.4		11.6	%
West South Central		1,176.3		13.6	%		1,100.3		12.7	%
Mountain		718.2		8.3	%		776.9		8.9	%
West North Central		537.5		6.2	%		415.4		4.8	%
New England		334.6		3.9	%		320.0		3.7	%
East South Central		215.8		2.5	%		252.9		2.9	%
Total Commercial mortgage loans	$	8,666.2		100.0	%	$	8,695.5		100.0	%

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

Mortgage Loans by Property Type of Collateral

	June 30, 2013(1)					December 31, 2012(1)
	Gross Carrying Value		% of Total			Gross Carrying Value		% of Total
Commercial Mortgage Loans by Property Type:
Industrial	$	3,183.4		35.7	%	$	3,361.5		38.8	%
Retail		2,653.1		29.7	%		2,350.2		27.1	%
Office		1,281.0		14.3	%		1,284.7		14.8	%
Apartments		994.1		11.1	%		952.1		11.0	%
Hotel/Motel		323.3		3.6	%		280.6		3.2	%
Mixed Use		157.3		1.8	%		74.0		0.9	%
Other		341.0		3.8	%		363.1		4.2	%
Total Commercial mortgage loans	$	8,933.2		100.0	%	$	8,666.2		100.0	%

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

	2012(1)					2011(1)
	Gross Carrying Value		% of Total			Gross Carrying Value		% of Total
Commercial Mortgage Loans by Property Type:
Industrial	$	3,361.5		38.8	%	$	3,457.0		39.8	%
Retail		2,350.2		27.1	%		2,104.2		24.2	%
Office		1,284.7		14.8	%		1,384.5		15.9	%
Apartments		952.1		11.0	%		972.8		11.2	%
Hotel/Motel		280.6		3.2	%		468.4		5.4	%
Mixed Use		74.0		0.9	%		28.6		0.3	%
Other		363.1		4.2	%		280.0		3.2	%
Total Commercial mortgage loans	$	8,666.2		100.0	%	$	8,695.5		100.0	%

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

Mortgage Loans by Year of Origination

The following table sets forth the breakdown of mortgages by year of origination as of the dates indicated:

	June 30, 2013(1)		December 31, 2012(1)
Year of Origination:
2013	$	1,028.7	$	—
2012		1,783.6		1,821.0
2011		1,893.8		1,940.8
2010		414.6		429.9
2009		173.9		175.1
2008		517.0		725.1
2007 and prior		3,121.6		3,574.3
Total Commercial mortgage loans	$	8,933.2	$	8,666.2

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

The following table sets forth the breakdown of mortgages by year of origination as of December 31, 2012 and 2011:

	2012(1)		2011(1)
Year of Origination:
2012	$	1,821.0	$	—
2011		1,940.8		1,998.0
2010		429.9		598.5
2009		175.1		226.3
2008		725.1		1,026.8
2007		689.2		1,141.6
2006 and prior		2,885.1		3,704.3
Total Commercial mortgage loans	$	8,666.2	$	8,695.5

⁽¹⁾  Balances do not include allowance for mortgage loan credit losses.

Credit related impairment

The following table identifies the Company’s credit-related and intent-related impairments included in the Condensed Consolidated Statements of Operations, excluding impairments included in Other comprehensive income (loss) by type for the periods indicated:

	Six Months Ended June 30,
	2013				2012
	Impairment		No. of Securities		Impairment		No. of Securities
U.S. corporate	$	—		—	$	1.0		2
Foreign(1)		—		—		2.2		5
Residential mortgage-backed		8.8		93		6.8		81
Commercial mortgage-backed		0.1		2		1.7		1
Other asset-backed		7.5		5		1.3		5
Equity		1.8		1		—		—
Total	$	18.2		101	$	13.0		94

⁽¹⁾  Primarily U.S. dollar denominated.

The following tables identify the Company’s credit-related and intent-related impairments included in the Consolidated Statements of Operations, excluding impairments included in Other comprehensive income (loss) by type for the years ended December 31, 2012, 2011 and 2010:

	2012				2011				2010
	Impairment		No. of Securities		Impairment		No. of Securities		Impairment		No. of Securities
U.S. Treasuries	$	—		—	$	—		—	$	1.8		1
U.S. corporate		14.3		4		55.2		41		30.7		32
Foreign(1)		2.2		5		71.3		61		121.5		31
Residential mortgage-backed		25.2		106		37.7		134		73.4		128
Commercial mortgage-backed		1.7		1		133.7		26		59.5		15
Other asset-backed		2.6		7		195.5		122		589.9		107
Equity		—		—		—		—		0.5		4
Mortgage loans on real estate		7.7		2		9.3		7		13.5		11
Other assets(2)		1.4		1		—		—		—		—
Total	$	55.1		126	$	502.7		391	$	890.8		329

⁽¹⁾  Primarily U.S. dollar denominated.

⁽²⁾  Includes loss on real estate owned that is classified as Other assets on the Consolidated Balance Sheets.

Net Investment Income

The following table summarizes Net investment income for the periods indicated:

	Six Months Ended June 30,
	2013		2012
Fixed maturities	$	1,993.3	$	2,138.3
Equity securities, available-for-sale		3.1		9.1
Mortgage loans on real estate		243.7		255.4
Policy loans		59.6		61.4
Short-term investments and cash equivalents		1.9		2.9
Other		11.5		(45.9	)
Gross investment income		2,313.1		2,421.2
Less: Investment expenses		2.2		4.9
Net investment income	$	2,310.9	$	2,416.3

The following table summarizes Net investment income for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Fixed maturities	$	4,184.0		$	4,402.1		$	4,374.3
Equity securities, available-for-sale		17.7			27.3			30.1
Mortgage loans on real estate		500.0			500.0			496.7
Policy loans		121.5			125.6			135.5
Short-term investments and cash equivalents		5.4			6.7			(3.5	)
Other		(123.3	)		(80.8	)		(25.4	)
Gross investment income		4,705.3			4,980.9			5,007.7
Less: Investment expenses		7.4			12.1			20.7
Net investment income	$	4,697.9		$	4,968.8		$	4,987.0

Realized Gain (Loss) on Investments

Net realized capital gains (losses) were as follows for the periods indicated:

	Six Months Ended June 30,
	2013			2012
Fixed maturities, available-for-sale, including securities pledged	$	6.4		$	182.1
Fixed maturities, at fair value option		(325.5	)		(122.6	)
Equity securities, available-for-sale		(1.7	)		1.7
Derivatives		(1,805.9	)		(633.3	)
Embedded derivative - fixed maturities		(73.5	)		3.6
Embedded derivative - product guarantees		759.8			(196.4	)
Other investments		(0.3	)		0.7
Net realized capital gains (losses)	$	(1,440.7	)	$	(764.2	)
After-tax net realized capital gains (losses)	$	(939.5	)	$	(538.7	)

Net realized capital gains (losses) were as follows for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Fixed maturities, available-for-sale, including securities pledged	$	391.7		$	56.4		$	(340.4	)
Fixed maturities, at fair value option		(278.8	)		(92.0	)		(63.6	)
Equity securities, available-for-sale		4.2			18.6			9.6
Derivatives		(1,712.4	)		418.6			(1,243.5	)
Embedded derivative – fixed maturities		(15.7	)		16.1			48.3
Embedded derivative – product guarantees		337.3			(1,945.1	)		(72.7	)
Other investments		(7.1	)		(4.0	)		(15.7	)
Net realized capital gains (losses)	$	(1,280.8	)	$	(1,531.4	)	$	(1,678.0	)
After-tax net realized capital gains (losses)	$	(715.8	)	$	(1,017.4	)	$	(1,184.7	)

Gain (Loss) on Investments

Proceeds from the sale of fixed maturities and equity securities, available-for-sale and the related gross realized gains and losses, before tax, were as follows for the periods indicated:

	Six Months Ended June 30,
	2013		2012
Proceeds on sales	$	4,722.8	$	6,379.8
Gross gains		77.0		225.3
Gross losses		21.1		27.0

Proceeds from the sale of fixed maturities and equity securities, available-for-sale and the related gross realized gains and losses, before tax, were as follows for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Proceeds on sales	$	11,185.9		$	12,850.7		$	15,637.1
Gross gains		484.2			648.5			644.2
Gross losses		(44.8	)		(181.9	)		(101.3	)

Intent related impairment

Credit related impairment

The following table summarizes these intent impairments, which are also recognized in earnings, by type for the periods indicated:

	Six Months Ended June 30,
	2013				2012
	Impairment		No. of Securities		Impairment		No. of Securities
U.S. corporate	$	—		—	$	1.0		2
Foreign(1)		—		—		1.5		4
Commercial mortgage-backed		0.1		2		1.7		1
Other asset-backed		7.3		2		0.2		1
Total	$	7.4		4	$	4.4		8

⁽¹⁾  Primarily U.S. dollar denominated.

The following tables summarize these intent impairments, which are also recognized in earnings, by type for the years ended December 31, 2012, 2011 and 2010:

	2012				2011				2010
	Impairment		No. of Securities		Impairment		No. of Securities		Impairment		No. of Securities
U.S. Treasuries	$	—		—	$	—		—	$	1.8		1
U.S. corporate		1.1		2		55.2		40		28.2		31
Foreign(1)		1.5		4		59.0		56		75.0		26
Residential mortgage-backed		3.3		10		7.9		27		20.6		23
Commercial mortgage-backed		1.7		1		124.3		26		31.7		9
Other asset-backed		0.2		1		183.8		118		393.8		64
Total	$	7.8		18	$	430.2		267	$	551.1		154

⁽¹⁾  Primarily U.S. dollar denominated.

Credit related impairment

Credit related impairment

The following table identifies the amount of credit impairments on fixed maturities for which a portion of the OTTI loss was recognized in Other comprehensive income (loss) and the corresponding changes in such amounts for the periods indicated:

	Six Months Ended June 30,
	2013			2012
Balance at January 1	$	114.7		$	133.9
Additional credit impairments:
On securities not previously impaired		2.2			0.3
On securities previously impaired		6.0			7.2
Reductions:
Securities sold, matured, prepaid or paid down		(13.0	)		(12.5	)
Balance at June 30	$	109.9		$	128.9

The following tables identify the amount of credit impairments on fixed maturities for which a portion of the OTTI loss was recognized in Other comprehensive income (loss) and the corresponding changes in such amounts for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Balance at January 1	$	133.9		$	304.6		$	287.8
Additional credit impairments:
On securities not previously impaired		9.5			10.3			115.4
On securities previously impaired		17.1			17.0			22.3
Reductions:
Securities intent impaired		—			(38.2	)		(72.5	)
Securities sold, matured, prepaid or paid down		(45.8	)		(159.8	)		(48.4	)
Balance at December 31	$	114.7		$	133.9		$	304.6

Duration

Schedule of Unrealized Loss on Investments

Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, for instances in which fair value declined below amortized cost by greater than or less than 20% for consecutive months as indicated in the tables below, were as follows as of the dates indicated:

	Amortized Cost				Unrealized Capital Losses				Number of Securities
	< 20%		> 20%		< 20%		> 20%		< 20%		> 20%
June 30, 2013
Six months or less below amortized cost	$	17,670.9	$	142.0	$	756.1	$	35.3		1,180		27
More than six months and twelve months or less below amortized cost		1,523.5		16.1		135.8		3.7		178		8
More than twelve months below amortized cost		659.9		127.3		37.9		34.5		226		35
Total	$	19,854.3	$	285.4	$	929.8	$	73.5		1,584		70
December 31, 2012
Six months or less below amortized cost	$	3,154.6	$	42.1	$	95.2	$	11.4		308		21
More than six months and twelve months or less below amortized cost		363.3		30.2		19.5		10.3		83		9
More than twelve months below amortized cost		940.1		394.1		35.9		120.4		221		95
Total	$	4,458.0	$	466.4	$	150.6	$	142.1		612		125

Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, for instances in which fair value declined below amortized cost by greater than or less than 20% were as follows as of December 31, 2012 and 2011:

	Amortized Cost				Unrealized Capital Losses				Number of Securities
	< 20%		> 20%		< 20%		> 20%		< 20%		> 20%
2012
Six months or less below amortized cost	$	3,154.6	$	42.1	$	95.2	$	11.4		308		21
More than six months and twelve months or less below amortized cost		363.3		30.2		19.5		10.3		83		9
More than twelve months below amortized cost		940.1		394.1		35.9		120.4		221		95
Total	$	4,458.0	$	466.4	$	150.6	$	142.1		612		125
2011
Six months or less below amortized cost	$	4,560.5	$	616.9	$	184.5	$	166.1		474		105
More than six months and twelve months or less below amortized cost		1,805.8		197.9		103.8		61.0		114		46
More than twelve months below amortized cost		1,935.4		626.6		159.1		243.0		269		145
Total	$	8,301.7	$	1,441.4	$	447.4	$	470.1		857		296

Market Sector (Type of Security)

Schedule of Unrealized Loss on Investments

Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, by market sector for instances in which fair value declined below amortized cost by greater than or less than 20% were as follows as of the dates indicated:

	Amortized Cost				Unrealized Capital Losses				Number of Securities
	< 20%		> 20%		< 20%		> 20%		< 20%		> 20%
June 30, 2013
U.S. Treasuries	$	2,737.0	$	—	$	64.6	$	—		20		—
U.S. Government agencies and authorities		57.4		—		0.5		—		2		—
U.S. corporate, state and municipalities		10,150.0		74.4		547.6		18.7		655		3
Foreign		3,763.3		78.1		201.4		18.7		287		8
Residential mortgage-backed		2,409.2		74.6		75.2		20.5		492		46
Commercial mortgage-backed		48.1		—		3.6		—		8		—
Other asset-backed		689.3		58.3		36.9		15.6		120		13
Total	$	19,854.3	$	285.4	$	929.8	$	73.5		1,584		70
December 31, 2012
U.S. Treasuries	$	453.0	$	—	$	1.8	$	—		3		—
U.S. Government agencies and authorities		—		—		—		—		—		—
U.S. corporate, state and municipalities		1,688.5		41.4		33.1		15.7		109		3
Foreign		684.9		109.3		24.1		35.2		50		14
Residential mortgage-backed		938.3		144.8		42.5		44.2		343		77
Commercial mortgage-backed		85.9		1.9		5.6		0.5		19		1
Other asset-backed		607.4		169.0		43.5		46.5		88		30
Total	$	4,458.0	$	466.4	$	150.6	$	142.1		612		125

Unrealized capital losses (including noncredit impairments) in fixed maturities, including securities pledged, by market sector for instances in which fair value declined below amortized cost by greater than or less than 20% for consecutive months as indicated in the tables below, were as follows as of December 31, 2012 and 2011:

	Amortized Cost				Unrealized Capital Losses				Number of Securities
	< 20%		> 20%		< 20%		> 20%		< 20%		> 20%
2012
U.S. Treasuries	$	453.0	$	—	$	1.8	$	—		3		—
U.S. corporate, state and municipalities		1,688.5		41.4		33.1		15.7		109		3
Foreign		684.9		109.3		24.1		35.2		50		14
Residential mortgage-backed		938.3		144.8		42.5		44.2		343		77
Commercial mortgage-backed		85.9		1.9		5.6		0.5		19		1
Other asset-backed		607.4		169.0		43.5		46.5		88		30
Total	$	4,458.0	$	466.4	$	150.6	$	142.1		612		125
2011
U.S. Treasuries	$	—	$	—	$	—	$	—		—		—
U.S. corporate, state and municipalities		2,402.2		88.7		85.5		25.9		185		7
Foreign		1,912.4		146.6		96.8		48.6		153		16
Residential mortgage-backed		1,475.5		445.3		87.2		153.6		323		178
Commercial mortgage-backed		1,723.5		137.0		114.2		35.0		48		7
Other asset-backed		788.1		623.8		63.7		207.0		148		88
Total	$	8,301.7	$	1,441.4	$	447.4	$	470.1		857		296