Schedule of Corporate Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
Cash and cash equivalents	$ 1,028.4	$ 430.7	$ 449.7	$ 519.1
Current and deferred income tax assets net of valuation allowances	471.4	836.7
Property, plant and equipment, net	1,430.1	1,616.6
LIFO reserve	(92.0)	(92.1)
Corporate
Segment Reporting Information [Line Items]
Cash and cash equivalents	494.9	(137.2)	(138.1)
Current and deferred income tax assets net of valuation allowances	39.2	324.5	152.7
Property, plant and equipment, net	61.7	60.7	81.8
Software, net	71.1	71.8	53.1
Deferred compensation plan assets	63.0	57.2	50.6
LIFO reserve	$ (92.0)	$ (92.1)	$ (96.4)