Pensions and Other Postemployment Benefits - Net Periodic Benefit Cost (Credit) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Pension Benefits [Member] | United States Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 1
Interest cost	12	12
Expected return on plan assets	(12)	(15)
Amortization of actuarial losses	3	3
Amortization of prior service credits	0	0
Net periodic benefit cost (credit)	4	1
Pension Benefits [Member] | Non-U.S. Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4
Interest cost	3	2
Expected return on plan assets	0	0
Amortization of actuarial losses	1	3
Amortization of prior service credits	0	0
Net periodic benefit cost (credit)	7	9
Other Postretirement Benefit Plan, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	3	3
Expected return on plan assets	0	0
Amortization of actuarial losses	1	2
Amortization of prior service credits	(1)	(1)
Net periodic benefit cost (credit)	$ 3	$ 4