Operating Leases (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Leased Assets [Line Items]
2012	$ 80.3
2013	63.6
2014	50.2
2015	33.1
2016	20.5
Later years	49.0
Future Minimum Payments Due	296.7
Guarantees
Operating leases residual value guarantee	27.6
Operating Leases, Rent Expense, Net [Abstract]
Operating Leases, Rent Expense, Net	112.6	104.7	101.4
Buildings [Member]
Operating Leased Assets [Line Items]
2012	58.7
2013	48.1
2014	40.1
2015	28.1
2016	18.6
Later years	48.4
Future Minimum Payments Due	242.0
Vehicles [Member]
Operating Leased Assets [Line Items]
2012	17.5
2013	13.0
2014	8.6
2015	4.2
2016	1.4
Later years	0.1
Future Minimum Payments Due	44.8
Other machinery and equipment [Member]
Operating Leased Assets [Line Items]
2012	4.1
2013	2.5
2014	1.5
2015	0.8
2016	0.5
Later years	0.5
Future Minimum Payments Due	$ 9.9