Share-Based Compensation Share-Based Compensation And Benefit Plans (Employee Share Purchase Plan Activity) (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Jan. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation [Abstract]
Stock Issued During Period, Shares, Employee Stock Purchase Plans	9,167	17,171	20,137	19,914
Weighted Average Fair Value Of Shares Purchased Under Employee Share Purchase Plan		$ 62.59	$ 67.80	$ 63.29
Allocated Share-based Compensation Expense		$ 0.2	$ 0.3	$ 0.3