Benefit Plans - Components of Net Periodic Benefit Cost (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 0.2
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	15.6	12.9	10.3
Interest cost	14.3	28.2	28.6
Expected return on plan assets	(9.7)	(29.4)	(27.9)
Amortization of prior year service cost (benefit)	0.4	0	0
Net actuarial (gain) loss	(18.3)	114.3	59.0
Net periodic benefit expense (income)	2.3	126.0	70.0
Non-US Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	8.4	3.3	2.2
Interest cost	17.9	7.5	4.1
Expected return on plan assets	(15.2)	(3.9)	(0.5)
Amortization of prior year service cost (benefit)	(0.2)	0	0
Net actuarial (gain) loss	(30.0)	24.2	4.2
Net periodic benefit expense (income)	(19.1)	31.1	10.0
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.3	0.2	0.2
Interest cost	1.9	1.9	1.9
Amortization of prior year service cost (benefit)	(0.8)	0	0
Net actuarial (gain) loss	(15.9)	8.1	2.4
Net periodic benefit expense (income)	$ (14.5)	$ 10.2	$ 4.5