Restructuring and Other Items (Restructuring and Other Items) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restructuring and Related Activities [Abstract]
Severance and post-employment benefits	$ (1.2)	$ 2.3	$ 10.5
Impairments and asset write-offs	2.4	0	5.2
Other restructuring charges	0.9	3.0	0.2
Total restructuring and related charges	2.1	5.3	15.9
Impairment charge	3.4	0	0
Development income	(6.5)	0	0
Acquisition-related contingencies	1.2	(0.2)	(1.8)
Special separation benefits	0	2.9	0
Foreign exchange and other	1.1	1.5	1.7
Total restructuring and other items	$ 1.3	$ 9.5	$ 15.8