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Percentage of Fair Value of Pension Plan Assets (Detail)
Dec. 31, 2016
Dec. 31, 2015
U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 100.00% 100.00%
U.S. Pension Plans | Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 33.00% 32.00%
U.S. Pension Plans | Fixed Income Securities    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 63.00% 65.00%
U.S. Pension Plans | Real Estate    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 4.00% 3.00%
Non-U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 100.00% 100.00%
Non-U.S. Pension Plans | Equity Securities    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 29.00% 32.00%
Non-U.S. Pension Plans | Fixed Income Securities    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 57.00% 50.00%
Non-U.S. Pension Plans | Real Estate    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 5.00% 6.00%
Non-U.S. Pension Plans | Hedge Funds    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 6.00% 7.00%
Non-U.S. Pension Plans | Private Equity    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 2.00% 3.00%
Non-U.S. Pension Plans | Cash    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets 1.00% 1.00%
Non-U.S. Pension Plans | Other    
Defined Benefit Plan Disclosure [Line Items]    
Percentage of fair value pension plan assets   1.00%