Segment and Geographic Area Information - Schedule of Geographic Information for Sales (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 5,245	$ 5,573	$ 5,897	$ 5,819	$ 6,377	$ 6,239	$ 5,836	$ 5,454	$ 22,534	$ 23,906	$ 23,032
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									12,425	12,103	11,766
Spain [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,853	3,359	2,282
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,196	3,028	3,240
Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									854	1,398	1,221
France [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									802	915	862
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									698	464	475
Hungary [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									622	630	555
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									565	415	259
Russia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									455	642	683
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									308	143	123
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									264	229	230
Italy [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									139	150	157
Netherlands [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									34	36	524
Norway [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									30	31	283
Other Geographical Regions [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									$ 289	$ 363	$ 372