Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Loss (Income) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	$ 150.8	$ 1.3
Amortization of actuarial loss	(9.9)	(10.1)
Amortization of prior service cost	(0.1)	(0.4)
Settlement/curtailment loss (gain)	(2.1)
Effects of changes in foreign currency exchange rates	(28.1)	3.9
Total recognized in other comprehensive (income) loss	110.6	(5.3)
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	28.3	(14.9)
Amortization of actuarial loss	(0.8)	(2.2)
Amortization of prior service cost	(0.1)	(0.2)
Settlement/curtailment loss (gain)		0.8
Total recognized in other comprehensive (income) loss	27.4	(16.5)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Current year actuarial loss (gain)	122.5	16.2
Amortization of actuarial loss	(9.1)	(7.9)
Amortization of prior service cost		(0.2)
Settlement/curtailment loss (gain)	(2.1)	(0.8)
Effects of changes in foreign currency exchange rates	(28.1)	3.9
Total recognized in other comprehensive (income) loss	$ 83.2	$ 11.2