Segment Information (Tables)

3 Months Ended

Mar. 31, 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 March 31
	2012			2011
	(in millions of dollars)
Operating Revenue by Segment	$	2,598.9		$	2,547.9
Net Realized Investment Gain	12.4			15.2
Revenue	$	2,611.3		$	2,563.1
Operating Income by Segment	$	309.2		$	320.2
Net Realized Investment Gain	12.4			15.2
Non-operating Retirement-related Loss	(11.6		)	(8.0		)
Income Tax	(96.1		)	(103.8		)
Net Income	$	213.9		$	223.6

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 March 31
	2012		2011
	(in millions of dollars)
Unum US
Group Disability
Group Long-term Disability	$	395.5	$	397.0
Group Short-term Disability	117.7		111.0
Group Life and Accidental Death & Dismemberment
Group Life	293.6		273.4
Accidental Death & Dismemberment	28.3		27.1
Supplemental and Voluntary
Individual Disability - Recently Issued	118.4		115.1
Voluntary Benefits	158.5		145.2
	1,112.0		1,068.8
Unum UK
Group Long-term Disability	101.9		103.4
Group Life	52.7		47.6
Supplemental and Voluntary	16.1		16.1
	170.7		167.1
Colonial Life
Accident, Sickness, and Disability	180.2		172.3
Life	51.7		46.2
Cancer and Critical Illness	64.4		61.9
	296.3		280.4
Closed Block
Individual Disability	187.2		202.3
Long-term Care	155.2		150.6
All Other	0.5		0.3
	342.9		353.2
Total	$	1,921.9	$	1,869.5

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 March 31, 2012
Premium Income	$	1,112.0	$	170.7	$	296.3	$	342.9	$	—		$	1,921.9
Net Investment Income	238.6		36.5		35.6		301.6		7.2			619.5
Other Income	31.1		0.1		0.1		25.9		0.3			57.5
Operating Revenue	$	1,381.7	$	207.3	$	332.0	$	670.4	$	7.5		$	2,598.9
Operating Income (Loss)	$	205.9	$	38.8	$	69.7	$	15.4	$	(20.6	)	$	309.2
Three Months Ended March 31, 2011
Premium Income	$	1,068.8	$	167.1	$	280.4	$	353.2	$	—		$	1,869.5
Net Investment Income	233.7		44.9		31.3		294.3		14.5			618.7
Other Income	31.0		0.1		0.1		27.5		1.0			59.7
Operating Revenue	$	1,333.5	$	212.1	$	311.8	$	675.0	$	15.5		$	2,547.9
Operating Income (Loss)	$	194.7	$	48.9	$	66.5	$	31.9	$	(21.8	)	$	320.2

Assets by Segment

Assets by segment are as follows:

	March 31		December 31
	2012		2011
	(in millions of dollars)
Unum US	$	18,621.5	$	18,583.6
Unum UK	3,746.8		3,549.5
Colonial Life	3,209.3		3,167.8
Closed Block	31,306.2		31,439.5
Corporate	2,688.0		2,814.8
Total	$	59,571.8	$	59,555.2