Restructuring and Other Reorganization-Related Costs 2013 Plan (Details) (2013 Restructuring Plan [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Restructuring Cost and Reserve [Line Items]
Beginning liability balance	$ 50.9
Net Restructuring (Reversals) Charges	(0.2)
Cash payments	(37.5)
Ending liability balance	13.2
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning liability balance	46.5
Net Restructuring (Reversals) Charges	(0.4)
Cash payments	(36.5)
Ending liability balance	9.6
Real Estate [Member]
Restructuring Cost and Reserve [Line Items]
Beginning liability balance	3.9
Net Restructuring (Reversals) Charges	0.2
Cash payments	(0.6)
Ending liability balance	3.5
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Beginning liability balance	0.5
Net Restructuring (Reversals) Charges	0
Cash payments	(0.4)
Ending liability balance	0.1
CMG
Restructuring Cost and Reserve [Line Items]
Net Restructuring (Reversals) Charges	$ 0.2