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Long-Term Employee Benefit Liabilities - Schedule of Company's Defined Benefit Pension Plans (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]    
Non-current asset $ (17) $ (13)
Non-current liability 504 559
Pension Plan, Defined Benefit [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Beginning of year 536 450
Current service cost 12 13
Interest cost 18 20
Actuarial (gains) losses and changes in actuarial assumptions (18) 93
Benefits paid (18) (16)
Acquisition 1  
Foreign exchange (38) (24)
End of year 493 536
Beginning of year 347 328
Return on plan assets 7 25
Employer contributions 19 24
Benefits paid (18) (16)
Foreign exchange (29) (14)
End of year 326 347
Ending funded status 167 189
Non-current asset (17) (13)
Current liability 3 3
Non-current liability 181 199
Net amount 167 189
Unrecognized actuarial losses (138) (147)
Current service cost 12 13
Interest cost 18 20
Return on plan assets (20) (19)
Actuarial losses 4 1
Net periodic benefit cost $ 14 $ 15