Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net income attributable to Union Carbide Corporation	$ 272	$ 44	$ 743	$ 399
Other comprehensive income, net of tax
Cumulative translation adjustments	1	1	2	4
Pension and other postretirement benefit plans	16	12	49	36
Other comprehensive income	17	13	51	40
Comprehensive income attributable to Union Carbide Corporation	$ 289	$ 57	$ 794	$ 439

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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