Segment and Geographic Area Information - Schedule of Reconciliation of Certain Segment Information to Consolidated Totals (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales revenue, goods, net	$ 3,271	$ 3,236	$ 3,261	$ 3,192	$ 2,967	$ 3,138	$ 3,234	$ 3,055	$ 12,960	$ 12,394	$ 12,413
Operating Segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales revenue, goods, net									13,060	12,512	12,602
Intersegment Eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales revenue, goods, net									(148)	(118)	(125)
Corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales revenue, goods, net									$ 48	$ 0	$ (64)