Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net Income Attributable to Union Carbide Corporation	$ 44	$ 186	$ 399	$ 599
Other Comprehensive Income, Net of Tax
Cumulative translation adjustments	1	0	4	0
Pension and other postretirement benefit plans	12	11	36	32
Other comprehensive income	13	11	40	32
Comprehensive Income Attributable to Union Carbide Corporation	$ 57	$ 197	$ 439	$ 631