Schedule I - Summary of Investments, Other Than Investments in Related Parties Schedule I - Summary of Investments, Other Than Investments in Related Parties

12 Months Ended

Dec. 31, 2017

Summary of Investments, Other than Investments in Related Parties [Abstract]

Summary of Investments, Other Than Investments in Related Parties

SCHEDULE I--SUMMARY OF INVESTMENTS -

OTHER THAN INVESTMENTS IN RELATED PARTIES

as of December 31, 2017

Unum Group and Subsidiaries

Type of Investment	Cost or Amortized Cost (1)		Fair Value		Amount shown on the balance sheet
	(in millions of dollars)
Fixed Maturity Securities:
Bonds
United States Government and Government Agencies and Authorities	$	1,311.1	$	1,482.5	$	1,482.5
States, Municipalities, and Political Subdivisions	1,942.8		2,336.9		2,336.9
Foreign Governments	673.0		863.9		863.9
Public Utilities	6,952.7		8,236.5		8,236.5
Mortgage/Asset-Backed Securities	1,873.2		1,973.6		1,973.6
All Other Corporate Bonds	26,988.7		30,522.4		30,522.4
Redeemable Preferred Stocks	39.0		42.0		42.0
Total Fixed Maturity Securities	39,780.5		$	45,457.8	45,457.8
Mortgage Loans	2,213.2				2,213.2
Policy Loans	3,571.1				3,571.1
Other Long-term Investments
Derivatives	—				19.5		(2)
Equity Securities	11.1				11.7
Miscellaneous Long-term Investments	601.7				615.6		(3)
Short-term Investments	1,155.1				1,155.1
Total Investments	$	47,332.7			$	53,044.0

(1) The amortized cost for fixed maturity securities and mortgage loans represents original cost reduced by repayments, write-downs from other-than-temporary declines in fair value, amortization of premiums, and/or accretion of discounts.

(2) Derivatives are carried at fair value.

(3) The difference between amortized cost and carrying value primarily results from changes in the partnership owner's equity since acquisition.