Restructuring Activities - Components of Restructuring Accrual, Spending and Other Activity and Accrual Balance Remaining (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restructuring Cost And Reserve [Line Items]
Cash payments during 2014	$ (26.6)	$ (24.4)
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	55.9
Accrual and accrual adjustments	4.8
Cash payments during 2014	(15.0)
Effect of changes in foreign currency exchange rates	0.1
Restructuring accrual at March 31, 2014	45.8
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	24.5
Accrual and accrual adjustments	1.3
Cash payments during 2014	(7.5)
Effect of changes in foreign currency exchange rates	(0.2)
Restructuring accrual at March 31, 2014	$ 18.1