Pension Plans, Postretirement and Other Employee Benefits - Amounts to be Reflected as Component of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	$ 5
Prior service cost	(1)
Total	4
United States Pension Plans of US Entity, Defined Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	146	$ 232
Prior service cost	0	0
Total	146	232
Net actuarial loss	10
Prior service cost	0
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	10
Foreign
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial loss	145	144
Prior service cost	4	5
Total	149	$ 149
Net actuarial loss	8
Prior service cost	1
Total expected amounts that will be amortized from accumulated other comprehensive income in 2013	$ 9