v3.10.0.1
Restructuring Charges - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]      
Employee severance costs included in restructuring liabilities $ 5,000,000 $ 7,000,000  
Total restructuring liabilities 65,000,000 89,000,000 $ 151,000,000
Restructuring liabilities - current 60,000,000 74,000,000  
Restructuring liabilities - non current 5,000,000 15,000,000  
Personnel Lay-Off Costs [Member]      
Restructuring Cost and Reserve [Line Items]      
Employee severance costs included in restructuring liabilities $ 0 $ 0 $ 52,000,000