GEOGRAPHIC AREAS - Sales by Geographic Area (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,788	$ 1,915	$ 1,964	$ 1,736	$ 1,768	$ 1,857	$ 1,874	$ 1,755	$ 7,403	$ 7,254	$ 5,989
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									4,889	4,761	3,867
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									682	758	639
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									328	298	300
China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									477	453	360
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									424	418	302
South America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									87	80	74
Other foreign countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									516	486	447
Export sales from the U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									1,892	1,891	1,682
Export sales from the U.S. | Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									620	676	583
Export sales from the U.S. | China
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									416	411	329
Export sales from the U.S. | Other foreign countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 856	$ 804	$ 770