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Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Information for Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]    
Accumulated benefit obligation $ 973.6 $ 961.8
Fair value of plan assets 639.0 615.0
U.S. Pension Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Accumulated benefit obligation 213.1 210.4
Fair value of plan assets 150.3 156.7
Non-U.S. Pension Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Accumulated benefit obligation 760.5 751.4
Fair value of plan assets $ 488.7 $ 458.3