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Employee Benefit Plans - Change in Benefit Obligation, Plan Assets and Funded Status of Defined Benefit Pension Plans (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets at beginning of year $ 660  
Fair value of plan assets at end of year 601 $ 660
Pension Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation at beginning of year 792 846
Service cost 6 8
Interest cost 26 35
Actuarial loss (gain) (38) 116
Benefits paid (34) (43)
Exchange rate loss (gain) (33) (51)
Acquisitions (disposals)   (118)
Curtailments (16) (1)
Benefit obligation at end of year 703 792
Fair value of plan assets at beginning of year 660 706
Actual return 3 68
Benefits paid (34) (43)
Company contributions 12 21
Exchange rate gain (loss) (23) (31)
Acquisitions (disposals) (17) (61)
Fair value of plan assets at end of year 601 660
Funded status (102) (132)
Accumulated benefit obligation at end of year 685 764
Postretirement Benefits [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Benefit obligation at beginning of year 53 45
Interest cost 3 2
Actuarial loss (gain) (7) 15
Benefits paid (5) (4)
Participants contributions 1 1
Acquisitions (disposals)   (6)
Other 45  
Benefit obligation at end of year 90 53
Benefits paid (5) (4)
Company contributions 4 3
Participants contributions 1 1
Funded status $ (90) $ (53)