Segments (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2013

Dec. 31, 2012

Segment Reporting [Abstract]

Schedule of Segment and Subsegments

The Company provides its principal products and services in three ongoing businesses and reports results through five ongoing segments as follows:

Business	Segment
Retirement Solutions	Retirement Annuities
Investment Management	Investment Management
Insurance Solutions	Individual Life Employee Benefits

The Company provides its principal products and services in three ongoing businesses and reports results through five ongoing segments as follows:

Business	Segment
Retirement Solutions	Retirement Annuities
Investment Management	Investment Management
Insurance Solutions	Individual Life Employee Benefits

Schedule of Operating Earnings Before Income Taxes from Segments

The summary below reconciles operating earnings before income taxes for the segments to Income (loss) before income taxes for the periods indicated:

	Six Months Ended June 30,
	2013			2012
Retirement Solutions:
Retirement	$	269.9		$	195.0
Annuities		113.8			63.3
Investment Management		71.2			64.2
Insurance Solutions:
Individual Life		90.8			88.4
Employee Benefits		46.5			44.7
Total Ongoing Businesses		592.2			455.6
Corporate		(102.9	)		(81.1	)
Closed Blocks:
Closed Block Institutional Spread Products		33.0			31.0
Closed Block Other		6.4			33.1
Closed Blocks		39.4			64.1
Total operating earnings before income taxes		528.7			438.6
Adjustments:
Closed Block Variable Annuity		(815.5	)		(525.8	)
Net investment gains (losses) and related charges and adjustments		42.6			192.9
Net guaranteed benefit hedging gains (losses) and related charges and adjustments		35.5			93.3
Loss related to businesses exited through reinsurance or divestment		(33.9	)		(24.2	)
Income (loss) attributable to noncontrolling interests		(16.6	)		202.1
Other adjustments to operating earnings		(30.3	)		(36.7	)
Income (loss) before income taxes	$	(289.5	)	$	340.2

The summary below reconciles operating earnings before income taxes for the segments to Income (loss) before income taxes for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Retirement Solutions:
Retirement	$	448.6		$	441.9		$	469.6
Annuities		102.2			387.6			115.0
Investment Management		134.5			87.5			50.1
Insurance Solutions:
Individual Life		196.2			279.3			313.5
Employee Benefits		109.4			83.3			82.0
Total Ongoing Businesses		990.9			1,279.6			1,030.2
Corporate		(182.3	)		(230.2	)		(399.1	)
Closed Blocks:
Closed Block Institutional Spread Products		45.7			83.2			(3.8	)
Closed Block Other		64.0			(13.0	)		(6.7	)
Closed Blocks		109.7			70.2			(10.5	)
Total operating earnings before income taxes		918.3			1,119.6			620.6
Adjustments:
Closed Block Variable Annuity		(692.3	)		(564.5	)		(220.2	)
Net investment gains (losses) and related charges and adjustments		455.5			71.8			(96.4	)
Net guaranteed benefit hedging gains (losses) and related charges and adjustments		97.2			(269.4	)		(30.0	)
Loss related to businesses exited through reinsurance or divestment		(45.8	)		(35.1	)		(3.3	)
Income (loss) attributable to noncontrolling interests		138.2			190.9			(10.3	)
Loss on early extinguishment of debt		—			—			(108.3	)
Immediate recognition of net actuarial gains (losses) related to pension and other post-employment benefit obligations and gains (losses) from plan amendments and curtailments		(165.0	)		(157.8	)		(47.5	)
Other adjustments to operating earnings		(100.1	)		(77.7	)		(66.8	)
Income (loss) before income taxes	$	606.0		$	277.8		$	37.8

Scheudule of Revenue from Segments

The summary below reconciles operating revenues for the segments to Total revenues for the periods indicated:

	Six Months Ended June 30,
	2013			2012
Retirement Solutions:
Retirement	$	1,180.1		$	1,119.3
Annuities		611.6			679.9
Investment Management		280.5			260.8
Insurance Solutions:
Individual Life		1,381.9			1,421.2
Employee Benefits		629.8			627.1
Total Ongoing Businesses		4,083.9			4,108.3
Corporate		25.0			33.5
Closed Blocks:
Closed Block Institutional Spread Products		64.6			73.3
Closed Block Other		14.5			19.0
Closed Blocks		79.1			92.3
Total operating revenues		4,188.0			4,234.1
Adjustments:
Closed Block Variable Annuity		(504.3	)		(180.6	)
Net realized investment gains (losses) and related charges and adjustments		(11.5	)		300.5
Gain (loss) on change in fair value of derivatives related to guaranteed benefits		90.7			68.8
Revenues related to businesses exited through reinsurance or divestment		(67.9	)		35.8
Revenues (loss) attributable to noncontrolling interests		101.2			284.1
Other adjustments to operating revenues		163.0			104.5
Total revenues	$	3,959.2		$	4,847.2

The summary below reconciles operating revenues for the segments to Total revenues for the years ended December 31, 2012, 2011 and 2010:

	2012			2011			2010
Retirement Solutions:
Retirement	$	2,271.9		$	2,225.4		$	2,179.0
Annuities		1,307.0			1,401.4			1,482.5
Investment Management		545.5			491.9			454.5
Insurance Solutions:
Individual Life		2,793.9			2,785.0			2,613.4
Employee Benefits		1,251.2			1,246.2			1,277.8
Total Ongoing Businesses		8,169.5			8,149.9			8,007.2
Corporate		65.9			(13.7	)		(132.3	)
Closed Blocks:
Closed Block Institutional Spread Products		127.2			188.1			167.6
Closed Block Other		43.8			52.2			64.3
Closed Blocks		171.0			240.3			231.9
Total operating revenues		8,406.4			8,376.5			8,106.8
Adjustments:
Closed Block Variable Annuity		(70.0	)		794.9			677.7
Net realized investment gains (losses) and related charges and adjustments		603.4			219.2			47.7
Gain (loss) on change in fair value of derivatives related to guaranteed benefits		83.1			(399.0	)		(66.9	)
Revenues related to businesses exited through reinsurance or divestment		64.6			116.1			137.6
Revenues (loss) attributable to noncontrolling interests		313.8			399.1			143.2
Other adjustments to operating revenues		214.0			212.0			228.1
Total revenues	$	9,615.3		$	9,718.8		$	9,274.2

Segment Information

The following is a summary of certain financial information for the Company’s segments for the years ended December 31, 2012, 2011 and 2010.

The Investment Management segment revenues include the following intersegment revenues, primarily consisting of asset-based management and administration fees.

	Years Ended December 31,
	2012		2011		2010
Investment management intersegment revenues	$	157.6	$	164.1	$	156.8

Schedule of Assets from Segments

The summary below presents Total assets for the Company’s segments as of the dates indicated:

	June 30, 2013		December 31, 2012
Retirement Solutions:
Retirement	$	89,837.5	$	86,504.3
Annuities		26,653.1		27,718.6
Investment Management		432.0		498.5
Insurance Solutions:
Individual Life		25,462.4		25,319.0
Employee Benefits		2,528.1		2,657.0
Total Ongoing Businesses		144,913.1		142,697.4
Corporate		3,247.6		5,593.4
Closed Blocks:
Closed Block Variable Annuity		48,740.7		49,157.6
Closed Block Institutional Spread Products		4,519.8		4,392.2
Closed Block Other		7,859.7		8,239.1
Closed Blocks		61,120.2		61,788.9
Total assets of segments		209,280.9		210,079.7
Noncontrolling interest		7,842.6		6,314.5
Total assets	$	217,123.5	$	216,394.2

The summary below presents Total assets for the Company’s segments as of December 31, 2012 and 2011:

	2012		2011
Retirement Solutions:
Retirement	$	86,504.3	$	76,076.8
Annuities		27,718.6		29,969.5
Investment Management		498.5		507.6
Insurance Solutions:
Individual Life		25,319.0		24,527.8
Employee Benefits		2,657.0		2,586.6
Total Ongoing Businesses		142,697.4		133,668.3
Corporate		5,593.4		3,328.6
Closed Blocks:
Closed Block Variable Annuity		49,157.6		47,564.3
Closed Block Institutional Spread Products		4,392.2		6,234.7
Closed Block Other		8,239.1		8,821.6
Closed Blocks		61,788.9		62,620.6
Total assets of segments		210,079.7		199,617.5
Noncontrolling interest		6,314.5		3,955.3
Total assets	$	216,394.2	$	203,572.8