Segment Information (Tables)

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Reconciliation of Total Operating Revenue and Operating Income by Segment to Revenue and Net Income

A reconciliation of total operating revenue and operating income by segment to revenue and net income as reported in our consolidated statements of income follows:

	Three Months Ended September 30						Nine Months Ended September 30
	2012			2011			2012			2011
	(in millions of dollars)
Operating Revenue by Segment	$	2,606.7		$	2,569.5		$	7,825.6		$	7,685.5
Net Realized Investment Gain (Loss)	21.3			(23.9		)	31.6			(12.3		)
Revenue	$	2,628.0		$	2,545.6		$	7,857.2		$	7,673.2
Operating Income by Segment	$	310.7		$	320.6		$	930.0		$	986.9
Net Realized Investment Gain (Loss)	21.3			(23.9		)	31.6			(12.3		)
Non-operating Retirement-related Loss	(11.6		)	(8.0		)	(34.8		)	(24.0		)
Income Tax	(90.2		)	(86.7		)	(266.3		)	(297.4		)
Net Income	$	230.2		$	202.0		$	660.5		$	653.2

Premium Income by Major Line of Business within Each Segment

Premium income by major line of business within each of our segments is presented as follows:

	Three Months Ended September 30					Nine Months Ended September 30
	2012		2011			2012		2011
	(in millions of dollars)
Unum US
Group Disability
Group Long-term Disability	$	392.4	$	393.7		$	1,185.7	$	1,185.3
Group Short-term Disability	120.1		115.2			356.0		339.0
Group Life and Accidental Death & Dismemberment
Group Life	297.3		277.6			885.1		825.3
Accidental Death & Dismemberment	29.2		27.7			86.2		81.6
Supplemental and Voluntary
Individual Disability - Recently Issued	119.9		116.6			357.0		348.3
Voluntary Benefits	153.0		143.6			468.9		433.5
	1,111.9		1,074.4			3,338.9		3,213.0
Unum UK
Group Long-term Disability	102.9		107.3			306.5		318.3
Group Life	56.4		52.1			164.6		151.6
Supplemental and Voluntary	15.9		16.1			48.0		48.5
	175.2		175.5			519.1		518.4
Colonial Life
Accident, Sickness, and Disability	181.8		174.3			541.8		519.7
Life	52.2		47.0			156.3		140.0
Cancer and Critical Illness	65.4		62.4			194.5		186.4
	299.4		283.7			892.6		846.1
Closed Block
Individual Disability	183.1		196.4			554.9		595.0
Long-term Care	159.4		152.1			471.5		453.5
All Other	0.4		(0.9		)	1.9		(0.3		)
	342.9		347.6			1,028.3		1,048.2
Total	$	1,929.4	$	1,881.2		$	5,778.9	$	5,625.7

Selected Operating Statement Data by Segment

Selected operating statement data by segment is presented as follows:

	Unum US		Unum UK		Colonial Life		Closed Block		Corporate			Total
	(in millions of dollars)
Three Months Ended September 30, 2012
Premium Income	$	1,111.9	$	175.2	$	299.4	$	342.9	$	—		$	1,929.4
Net Investment Income	236.3		34.8		33.9		307.3		6.9			619.2
Other Income	31.3		—		—		26.4		0.4			58.1
Operating Revenue	$	1,379.5	$	210.0	$	333.3	$	676.6	$	7.3		$	2,606.7
Operating Income (Loss)	$	216.3	$	27.5	$	68.7	$	25.6	$	(27.4	)	$	310.7
Three Months Ended September 30, 2011
Premium Income	$	1,074.4	$	175.5	$	283.7	$	347.6	$	—		$	1,881.2
Net Investment Income	240.0		43.3		32.5		300.1		13.3			629.2
Other Income	30.4		—		0.1		26.4		2.2			59.1
Operating Revenue	$	1,344.8	$	218.8	$	316.3	$	674.1	$	15.5		$	2,569.5
Operating Income (Loss)	$	209.2	$	34.7	$	66.7	$	30.8	$	(20.8	)	$	320.6
Nine Months Ended September 30, 2012
Premium Income	$	3,338.9	$	519.1	$	892.6	$	1,028.3	$	—		$	5,778.9
Net Investment Income	711.8		120.5		103.5		913.4		23.0			1,872.2
Other Income	93.1		0.1		0.2		78.9		2.2			174.5
Operating Revenue	$	4,143.8	$	639.7	$	996.3	$	2,020.6	$	25.2		$	7,825.6
Operating Income (Loss)	$	634.9	$	96.3	$	206.0	$	66.7	$	(73.9	)	$	930.0
Nine Months Ended September 30, 2011
Premium Income	$	3,213.0	$	518.4	$	846.1	$	1,048.2	$	—		$	5,625.7
Net Investment Income	712.6		139.3		99.6		888.9		44.6			1,885.0
Other Income	90.9		0.1		0.4		80.6		2.8			174.8
Operating Revenue	$	4,016.5	$	657.8	$	946.1	$	2,017.7	$	47.4		$	7,685.5
Operating Income (Loss)	$	609.5	$	138.8	$	205.1	$	93.1	$	(59.6	)	$	986.9

Assets by Segment

Assets by segment are as follows:

	September 30		December 31
	2012		2011
	(in millions of dollars)
Unum US	$	19,135.0	$	18,583.6
Unum UK	3,945.4		3,549.5
Colonial Life	3,357.9		3,167.8
Closed Block	32,718.9		31,439.5
Corporate	2,962.4		2,814.8
Total	$	62,119.6	$	59,555.2