Property and Equipment, Net (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]
Land and improvements	$ 142.0	$ 139.4
Buildings	712.0	702.3
Machinery and equipment	2,509.3	2,460.7
Other property and equipment	146.3	151.6
Construction-in-progress	97.9	103.9
Property and equipment	3,607.5	3,557.9
Accumulated depreciation and amortization	(2,373.6)	(2,288.7)
Property and equipment, net	$ 1,233.9	$ 1,269.2