Warranty Reserve Activity (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Product Information [Line Items]
Warranty reserve at January 1,	$ 97.1	$ 84.8
Provision for warranties issued	152.8	150.7
Warranty claims paid	(151.2)	(146.2)
Acquisitions and other adjustments	(0.7)	7.8
Warranty reserve at December 31,	98.0	97.1
Other current liabilities	86.3	85.9
Other non-current liabilities	11.7	11.2
Total	$ 98.0	$ 97.1