Segment Information

3 Months Ended

Mar. 31, 2013

Segment Reporting [Abstract]

Segment Information

Our reporting segments are comprised of Unum US, Unum UK, Colonial Life, Closed Block, and Corporate.

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

	Three Months Ended March 31
	2013			2012
	(in millions of dollars)
Unum US
Group Disability
Group Long-term Disability	$	392.7		$	395.5
Group Short-term Disability	131.0			117.7
Group Life and Accidental Death & Dismemberment
Group Life	302.2			293.6
Accidental Death & Dismemberment	30.9			28.3
Supplemental and Voluntary
Individual Disability - Recently Issued	120.1			118.4
Voluntary Benefits	162.8			158.5
	1,139.7			1,112.0
Unum UK
Group Long-term Disability	97.9			101.9
Group Life	31.0			52.7
Supplemental and Voluntary	14.9			16.1
	143.8			170.7
Colonial Life
Accident, Sickness, and Disability	184.8			180.2
Life	54.8			51.7
Cancer and Critical Illness	67.5			64.4
	307.1			296.3
Closed Block
Individual Disability	181.8			187.2
Long-term Care	158.8			155.2
All Other	(0.3		)	0.5
	340.3			342.9
Total	$	1,930.9		$	1,921.9

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, 2013
Premium Income	$	1,139.7	$	143.8	$	307.1	$	340.3	$	—		$	1,930.9
Net Investment Income	235.7		30.8		39.7		313.1		1.8			621.1
Other Income	36.7		0.1		—		24.1		1.6			62.5
Operating Revenue	$	1,412.1	$	174.7	$	346.8	$	677.5	$	3.4		$	2,614.5
Operating Income (Loss)	$	208.1	$	31.3	$	75.4	$	27.3	$	(33.7	)	$	308.4
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

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
	2013			2012
	(in millions of dollars)
Operating Revenue by Segment	$	2,614.5		$	2,598.9
Net Realized Investment Gain	10.3			12.4
Total Revenue	$	2,624.8		$	2,611.3
Operating Income by Segment	$	308.4		$	309.2
Net Realized Investment Gain	10.3			12.4
Non-operating Retirement-related Loss	(14.9		)	(11.6		)
Income Tax	(91.2		)	(96.1		)
Net Income	$	212.6		$	213.9

Assets by segment are as follows:

	March 31		December 31
	2013		2012
	(in millions of dollars)
Unum US	$	19,097.5	$	19,391.2
Unum UK	3,664.8		3,975.8
Colonial Life	3,438.8		3,434.9
Closed Block	32,885.5		33,069.2
Corporate	2,524.8		2,365.0
Total	$	61,611.4	$	62,236.1