Commitments and Contingencies (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net asbestos charges
Pre-tax asbestos charges from continued operations	$ 9.6	$ 15.9	$ 22.3	$ 31.5
Pre-tax asbestos charges from discontinued operations	0.7	0	0.7	2.8
Total pre-tax asbestos charges	10.3	15.9	23.0	34.3
After-tax asbestos charges from continued operations	5.9	10.7	13.5	19.8
After-tax asbestos charges from discontinued operations	0.4	0	0.5	1.8
Total after-tax asbestos charges	$ 6.3	$ 10.7	$ 14.0	$ 21.6