Segment and Related Information - Schedule of Geographic Information for Third-party Sales (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 2,436	$ 2,567	$ 2,711	$ 2,719	$ 3,344	$ 3,390	$ 3,579	$ 3,090	$ 10,433	$ 13,403	$ 11,652
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									4,606	5,887	5,313
Spain [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									3,077	3,806	3,303
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,249	2,930	2,266
Brazil [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									428	498	569
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									5	216	150
Other Geographical Regions [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									$ 68	$ 66	$ 51