Schedule I Summary of Investments (Tables)

12 Months Ended

Dec. 31, 2013

Schedule I - Summary of Investments [Abstract]

Investment Holdings, Schedule of Investments [Table Text Block]

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	$	1,028.6	$	1,196.1	$	1,196.1
States, Municipalities, and Political Subdivisions	1,706.0		1,783.2		1,783.2
Foreign Governments	1,226.4		1,373.2		1,373.2
Public Utilities	9,328.9		10,403.0		10,403.0
Mortgage/Asset-Backed Securities	1,858.7		2,039.3		2,039.3
All Other Corporate Bonds	23,108.0		25,511.9		25,511.9
Redeemable Preferred Stocks	33.0		37.7		37.7
Total	38,289.6		$	42,344.4	42,344.4
Mortgage Loans	1,815.1				1,815.1
Policy Loans	3,276.0				3,276.0
Other Long-term Investments
Derivatives	—				10.8		(2)
Equity Securities	11.3				16.4
Miscellaneous Long-term Investments	530.7				538.8		(3)
Short-term Investments	913.4				913.4
Total Investments	$	44,836.1			$	48,914.9