GEOGRAPHIC AREAS - Sales by Geographic Area (Details) - 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
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,823	$ 1,872	$ 1,808	$ 1,693	$ 1,596	$ 1,709	$ 1,655	$ 1,405	$ 7,196	$ 6,365	$ 5,246
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									6,168	5,451	4,362
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									352	369	363
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									107	108	99
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									472	341	307
Other foreign countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									97	96	115
Export sales from the U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									545	515	497
Export sales from the U.S. | Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									295	314	309
Export sales from the U.S. | China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									102	103	97
Export sales from the U.S. | Other foreign countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 148	$ 98	$ 91