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Long-Term Employee Benefit Liabilities - Long-Term Employee Benefit Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Compensation and Retirement Disclosure [Abstract]    
Defined benefit pension plans and other $ 313 $ 181
Termination and long service arrangements 319 287
Retirement medical benefits plans 29 30
Other long-term employee benefits 6 6
Long-term employee benefit obligations $ 667 $ 504