Segment Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment information is as follows:



	Year Ended December 31
	2017		2016		2015
	(in millions of dollars)
Premium Income
Unum US
Group Disability
Group Long-term Disability	$	1,749.6	$	1,726.6	$	1,644.7
Group Short-term Disability	639.8		626.1		607.4
Group Life and Accidental Death & Dismemberment
Group Life	1,467.5		1,410.0		1,347.4
Accidental Death & Dismemberment	147.5		140.3		131.7
Supplemental and Voluntary
Individual Disability	420.2		480.3		478.9
Voluntary Benefits	849.4		796.5		749.9
Dental and Vision	169.5		61.1		—
	5,443.5		5,240.9		4,960.0
Unum UK
Group Long-term Disability	340.3		355.2		397.4
Group Life	103.1		105.7		121.5
Supplemental	69.6		68.4		57.3
	513.0		529.3		576.2
Colonial Life
Accident, Sickness, and Disability	884.2		830.0		789.0
Life	300.4		273.8		252.4
Cancer and Critical Illness	326.8		313.3		297.2
	1,511.4		1,417.1		1,338.6
Closed Block
Individual Disability	471.8		521.9		572.4
Long-term Care	648.7		643.9		633.5
All Other	8.7		4.6		1.7
	1,129.2		1,170.4		1,207.6
Total Premium Income	$	8,597.1	$	8,357.7	$	8,082.4



	Unum US		Unum UK		Colonial Life		Closed Block		Corporate			Total
	(in millions of dollars)
Year Ended December 31, 2017

Premium Income	$	5,443.5	$	513.0	$	1,511.4	$	1,129.2	$	—		$	8,597.1
Net Investment Income	811.2		120.2		144.9		1,354.0		21.4			2,451.7
Other Income	113.2		0.7		1.1		79.8		2.9			197.7
Adjusted Operating Revenue	$	6,367.9	$	633.9	$	1,657.4	$	2,563.0	$	24.3		$	11,246.5

Adjusted Operating Income (Loss)	$	1,009.5	$	111.7	$	325.0	$	123.9	$	(146.8	)	$	1,423.3
Interest and Debt Expense	$	—	$	—	$	—	$	6.7	$	153.2		$	159.9
Depreciation and Amortization	$	371.3	$	17.3	$	239.9	$	6.7	$	0.9		$	636.1

Year Ended December 31, 2016

Premium Income	$	5,240.9	$	529.3	$	1,417.1	$	1,170.4	$	—		$	8,357.7
Net Investment Income	828.7		118.1		141.5		1,352.2		18.5			2,459.0
Other Income	113.3		0.2		1.2		86.0		4.9			205.6
Adjusted Operating Revenue	$	6,182.9	$	647.6	$	1,559.8	$	2,608.6	$	23.4		$	11,022.3

Adjusted Operating Income (Loss)	$	914.2	$	128.6	$	314.2	$	129.5	$	(163.0	)	$	1,323.5
Interest and Debt Expense	$	—	$	—	$	—	$	6.9	$	159.1		$	166.0
Depreciation and Amortization	$	353.0	$	16.4	$	222.9	$	6.9	$	1.0		$	600.2

Year Ended December 31, 2015

Premium Income	$	4,960.0	$	576.2	$	1,338.6	$	1,207.6	$	—		$	8,082.4
Net Investment Income	865.3		124.9		145.4		1,320.0		25.6			2,481.2
Other Income	119.2		—		0.1		89.3		2.9			211.5
Adjusted Operating Revenue	$	5,944.5	$	701.1	$	1,484.1	$	2,616.9	$	28.5		$	10,775.1

Adjusted Operating Income (Loss)	$	850.0	$	140.6	$	309.1	$	119.1	$	(136.7	)	$	1,282.1
Interest and Debt Expense	$	—	$	—	$	—	$	6.6	$	146.2		$	152.8
Depreciation and Amortization	$	347.0	$	18.0	$	214.6	$	6.6	$	0.9		$	587.1



							Colonial
	Unum US			Unum UK			Life			Total
	(in millions of dollars)
Deferred Acquisition Costs

Year Ended December 31, 2017
Beginning of Year	$	1,176.5		$	21.4		$	896.3		$	2,094.2
Capitalization	325.5			7.0			295.5			628.0
Amortization	(293.6		)	(9.1		)	(224.4		)	(527.1		)
Adjustment Related to Unrealized Investment Gains and Losses	(3.0		)	—			(9.5		)	(12.5		)
Foreign Currency	—			2.0			—			2.0
End of Year	$	1,205.4		$	21.3		$	957.9		$	2,184.6

Year Ended December 31, 2016
Beginning of Year	$	1,136.4		$	27.1		$	845.0		$	2,008.5
Capitalization	314.1			8.2			270.1			592.4
Amortization	(275.2		)	(9.7		)	(208.1		)	(493.0		)
Adjustment Related to Unrealized Investment Gains and Losses	1.2			—			(10.7		)	(9.5		)
Foreign Currency	—			(4.2		)	—			(4.2		)
End of Year	$	1,176.5		$	21.4		$	896.3		$	2,094.2

Year Ended December 31, 2015
Beginning of Year	$	1,096.5		$	30.4		$	774.4		$	1,901.3
Capitalization	307.3			9.6			252.8			569.7
Amortization	(272.3		)	(11.3		)	(198.7		)	(482.3		)
Adjustment Related to Unrealized Investment Gains and Losses	4.9			—			16.5			21.4
Foreign Currency	—			(1.6		)	—			(1.6		)
End of Year	$	1,136.4		$	27.1		$	845.0		$	2,008.5

A reconciliation of total revenue to "adjusted operating revenue" and income before income tax to "adjusted operating income" is as follows:



	Year Ended December 31
	2017			2016		2015
	(in millions of dollars)
Total Revenue	$	11,286.8		$	11,046.5	$	10,731.3
Excluding:
Net Realized Investment Gain (Loss)	40.3			24.2		(43.8		)
Adjusted Operating Revenue	$	11,246.5		$	11,022.3	$	10,775.1

Income Before Income Tax	$	1,404.0		$	1,347.7	$	1,238.3
Excluding:
Net Realized Investment Gain (Loss)	40.3			24.2		(43.8		)
Loss from Guaranty Fund Assessment	(20.6		)	—		—
Unclaimed Death Benefit Reserve Increase	(39.0		)	—		—
Adjusted Operating Income	$	1,423.3		$	1,323.5	$	1,282.1