Retirement Plans - Amounts Recognized in Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
United States
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Noncurrent assets	$ 0	$ 0
Noncurrent liabilities	(7.5)	(16.6)
Accumulated other comprehensive loss - pre-tax	14.3	25.8
International
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Noncurrent assets	0	6.1
Noncurrent liabilities	(5.3)	(11.5)
Accumulated other comprehensive loss - pre-tax	$ 4.6	$ 14.2