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Goodwill and Other Intangible Assets (Details) (USD $)
In Millions
3 Months Ended9 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
United States
Sep. 30, 2011
U.S. Cleaning and Sanitizing
Sep. 30, 2011
U.S. Other Services
Dec. 31, 2010
U.S. Other Services
Sep. 30, 2011
International
Changes in the carrying amount of goodwill         
Beginning goodwill, net  $ 1,329.3 $ 504.9$ 454.4$ 50.5$ 50.5$ 824.4
Business acquisitions  92.5 89.289.2  3.3
Foreign currency translation  82.2     82.2
Ending goodwill, net1,504.0 1,504.0 594.1543.650.550.5909.9
Goodwill expected to be tax deductible89.2 89.2      
Total amortization expense related to other intangible assets13.710.239.030.4     
Future estimated amortization expense related to amortizable other identifiable intangible assets         
2011 (Remainder: three-month period)  13      
2012  54      
2013  53      
2014  42      
2015  $ 37