Employee Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Number of Participants Domestic Pension Plan	4,000
Number of Participants Postretirement Benefit Plan	2,300
Deferred Compensation Arrangements [Abstract]
Deferred Compensation Liability	$ 92.7	$ 90.0
Deferred Compensation Expense	13.4	9.8	7.6
Deferred Benefit Liability	166.2	173.8
Deferred Benefit Expense	14.0	15.0	14.8
Cash Surrender Value of Life Insurance	162.3	150.2
Deferred Compensation Plan Assets	7.7	5.9
Supplemental Unemployment Benefits [Abstract]
Duration of disability benefits	24 months
Health and Life Insurance Benefit Obligation	10.5	11.3
Income Replacement Benefit Obligation	$ 0	$ 0