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Employee Benefit Plans Schedule of Pension and Postemployment Benefit Costs (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Postemployment      
Service cost $ 6 $ 4 $ 3
Interest cost 1 1 1
Amortization of actuarial loss (gain) 0 (1) (1)
Amortization of prior service credit 0 0 0
Total costs 7 4 3
Foreign Pension Plan      
Pension      
Service cost 8 9 8
Interest cost 3 4 4
Expected return on plan assets (2) (2) (2)
Settlement charge 1 1 1
Amortization of actuarial loss (gain) 2 2 2
Amortization of prior service credit 0 (1) 0
Total costs $ 12 $ 13 $ 13