Restructuring Activities - Components of Restructuring Accrual, Spending and Other Activity and Accrual Balance Remaining (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Restructuring Cost And Reserve [Line Items]
Cash payments during 2014	$ (49.9)	$ (45.0)
EQIP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	55.9
Accrual and accrual adjustments	14.7
Cash payments during 2014	(28.0)
Effect of changes in foreign currency exchange rates	0.3
Restructuring accrual at June 30, 2014	42.9
IOP [Member]
Restructuring Cost And Reserve [Line Items]
Restructuring accrual at December 31, 2013	24.5
Accrual and accrual adjustments	5.5
Cash payments during 2014	(13.3)
Effect of changes in foreign currency exchange rates	(0.2)
Restructuring accrual at June 30, 2014	$ 16.5