Segment Information (Tables)

3 Months Ended

Mar. 31, 2022

Segment Reporting [Abstract]

Premium Income by Major Line of Business within Each Segment

Segment information is as follows:

	Three Months Ended March 31
	2022		2021
	(in millions of dollars)
Premium Income
Unum US
Group Disability
Group Long-term Disability	$	463.9	$	457.7
Group Short-term Disability	221.6		215.2
Group Life and Accidental Death & Dismemberment
Group Life	412.6		410.0
Accidental Death & Dismemberment	42.1		41.4
Supplemental and Voluntary
Voluntary Benefits	220.5		218.7
Individual Disability	113.6		115.7
Dental and Vision	70.6		67.1
	1,544.9		1,525.8
Unum International
Unum UK
Group Long-term Disability	103.4		97.1
Group Life	32.2		27.3
Supplemental	29.0		28.0
Unum Poland	23.2		22.0
	187.8		174.4
Colonial Life
Accident, Sickness, and Disability	239.7		240.7
Life	101.7		96.6
Cancer and Critical Illness	89.3		89.1
	430.7		426.4
Closed Block
Long-term Care	174.8		177.4
Individual Disability	63.4		72.1
All Other	1.7		2.2
	239.9		251.7
Total Premium Income	$	2,403.3	$	2,378.3

Selected Operating Statement Data by Segment

	Unum US		Unum International		Colonial Life		Closed Block		Corporate		Total
	(in millions of dollars)
Three Months Ended March 31, 2022
Premium Income	$	1,544.9	$	187.8	$	430.7	$	239.9	$	—	$	2,403.3
Net Investment Income	171.0		34.5		38.1		274.8		8.8		527.2
Other Income	47.1		0.2		0.3		16.0		2.2		65.8
Adjusted Operating Revenue	$	1,763.0	$	222.5	$	469.1	$	530.7	$	11.0	$	2,996.3
Adjusted Operating Income (Loss)	$	171.6	$	27.2	$	90.1	$	94.1	$	(40.4)	$	342.6
Three Months Ended March 31, 2021
Premium Income	$	1,525.8	$	174.4	$	426.4	$	251.7	$	—	$	2,378.3
Net Investment Income	179.7		26.0		37.7		297.2		8.1		548.7
Other Income	40.4		0.1		0.2		18.4		1.3		60.4
Adjusted Operating Revenue	$	1,745.9	$	200.5	$	464.3	$	567.3	$	9.4	$	2,987.4
Adjusted Operating Income (Loss)	$	115.7	$	26.4	$	73.3	$	97.0	$	(38.9)	$	273.5

Assets by Segment

	March 31		December 31
	2022		2021
	(in millions of dollars)
Assets
Unum US	$	17,741.1	$	18,696.3
Unum International	3,872.4		4,086.5
Colonial Life	4,759.5		4,895.9
Closed Block	36,213.4		38,287.9
Corporate	3,885.3		4,149.0
Total Assets	$	66,471.7	$	70,115.6

Reconciliation of Total Revenue and Income Before Income Tax to Adjusted Operating Revenue and Adjusted Operating Income

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

	Three Months Ended March 31
	2022		2021
	(in millions of dollars)
Total Revenue	$	2,982.5	$	3,072.0
Excluding:
Net Investment Gain (Loss)	(13.8)		84.6
Adjusted Operating Revenue	$	2,996.3	$	2,987.4
Income Before Income Tax	$	312.1	$	198.8
Excluding:
Net Investment Gains and Losses
Net Realized Investment Gain Related to Reinsurance Transaction	—		67.6
Net Investment Gain (Loss), Other	(13.8)		17.0
Total Net Investment Gain (Loss)	(13.8)		84.6
Items Related to Closed Block Individual Disability Reinsurance Transaction
Change in Benefit Reserves and Transaction Costs	—		(139.3)
Amortization of the Cost of Reinsurance	(16.7)		(20.0)
Total Items Related to Closed Block Individual Disability Reinsurance Transaction	(16.7)		(159.3)
Adjusted Operating Income	$	342.6	$	273.5