Insurance Expenses (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Insurance Expenses [Abstract]
Commissions									$ 324.6	$ 345.7	$ 366.1
General Expenses									258.1	257.1	262.9
Taxes, Licenses and Fees									38.9	42.8	44.7
Total Costs Incurred									621.6	645.6	673.7
Policy Acquisition Costs:
Deferred									(235.8)	(253.4)	(266.4)
Amortized									235.4	253.9	257.0
Net Policy Acquisition Costs Amortized (Deferred)									(0.4)	0.5	(9.4)
Life VIF and P&C Customer Relationships Amortized									7.2	8.3	8.0
Insurance Expenses	$ 156.4	$ 158.6	$ 161.3	$ 152.1	$ 162.9	$ 170.1	$ 163.1	$ 158.3	$ 628.4	$ 654.4	$ 672.3