Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net Income Attributable to Union Carbide Corporation	$ 182	$ 173	$ 355	$ 413
Other Comprehensive Income, Net of Tax
Cumulative translation adjustments	2	0	3	0
Pension and other postretirement benefit plans	12	10	24	21
Total other comprehensive income	14	10	27	21
Comprehensive Income Attributable to Union Carbide Corporation	$ 196	$ 183	$ 382	$ 434