Employee Benefit Plans (Schedule of Amounts Recognized in Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Noncurrent assets	$ 0	$ 0
Current liabilities	(1.7)	(1.7)
Noncurrent liabilities	(48.0)	(38.7)
Net amount recognized	(49.7)	(40.4)
Other Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Noncurrent assets	0	0
Current liabilities	(0.9)	(1.1)
Noncurrent liabilities	(27.9)	(23.0)
Net amount recognized	$ (28.8)	$ (24.1)