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Shareholders' Equity - Classification of Pre-Payroll Tax and Social Contribution Stock-Based Compensation Expense Included in Consolidated Statements of Income (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total pre-payroll tax and social contribution compensation $ 38 $ 36 $ 26
Cost of Sales [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total pre-payroll tax and social contribution compensation 7 6 5
Selling, General and Administrative [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total pre-payroll tax and social contribution compensation 17 16 13
Research and Development [Member]      
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Total pre-payroll tax and social contribution compensation $ 14 $ 14 $ 8