Restructuring and Other Reorganization-Related Costs 2013 Plan (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
2013 Restructuring Plan
Restructuring Cost and Reserve
Beginning liability balance	$ 50.9
Net Restructuring (Reversals) Charges	(0.2)
Cash payments	(41.2)
Restructuring Reserve, Translation and Other Adjustment	(0.4)
Ending liability balance	9.1
Prior Year Restructuring Plans [Domain]
Restructuring Cost and Reserve
Net Restructuring (Reversals) Charges	0.3
Ending liability balance	1.2
Severance and termination costs | 2013 Restructuring Plan
Restructuring Cost and Reserve
Beginning liability balance	46.5
Net Restructuring (Reversals) Charges	(0.3)
Cash payments	(39.5)
Restructuring Reserve, Translation and Other Adjustment	(0.3)
Ending liability balance	6.4
Lease termination costs | 2013 Restructuring Plan
Restructuring Cost and Reserve
Beginning liability balance	3.9
Net Restructuring (Reversals) Charges	0.1
Cash payments	(1.2)
Restructuring Reserve, Translation and Other Adjustment	(0.1)
Ending liability balance	2.7
Other exit costs | 2013 Restructuring Plan
Restructuring Cost and Reserve
Beginning liability balance	0.5
Net Restructuring (Reversals) Charges	0
Cash payments	(0.5)
Restructuring Reserve, Translation and Other Adjustment	0
Ending liability balance	0
CMG | 2013 Restructuring Plan
Restructuring Cost and Reserve
Net Restructuring (Reversals) Charges	$ (0.2)