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Contingencies and Commitments - Additional Information - 1 (Detail) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2017
Dec. 31, 2016
Loss Contingencies [Line Items]      
Number of cleanup locations   More than 100  
Remediation reserve balance $ 301 $ 301 $ 308
Remediation reserve balance, classified as a current liability 42 42 48
Payments related to remediation expenses applied against the reserve 5 $ 7  
Actual remediation fieldwork period   4 years  
Maximum [Member]      
Loss Contingencies [Line Items]      
Majority of the project funding period   2021  
Minimum [Member]      
Loss Contingencies [Line Items]      
Majority of the project funding period   2017  
Massena West, NY [Member]      
Loss Contingencies [Line Items]      
Remediation reserve balance $ 224 $ 224 $ 228
Recurring Costs of Managing Hazardous Substances and Environmental Programs [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Percentage of cost of goods sold   1.00%