Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Schedule of Components of Net Periodic Benefit Cost (Income) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Total benefit cost (income)	$ 1.0	$ 11.9	$ 10.9
U.S. and International
Defined Benefit Plan Disclosure [Line Items]
Total benefit cost (income)	1.0	11.9	10.9
U.S. and International | Cost of Sales
Defined Benefit Plan Disclosure [Line Items]
Total benefit cost (income)	0.2	1.7	1.7
U.S. and International | Selling, General and Administrative Expenses
Defined Benefit Plan Disclosure [Line Items]
Total benefit cost (income)	$ 0.8	$ 10.2	$ 9.2