Consolidated Statements of Equity (USD $) In Millions, unless otherwise specified	Total	Union Carbide Corporation's Stockholder's Equity [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss, Net of Tax [Member]	Noncontrolling Interest [Member]
Union Carbide Corporation's Stockholder's Equity, Beginning at Dec. 31, 2010			$ 0	$ 312	$ 5,990	$ (1,026)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	215				215
Dividends declared					(951)
Other					(1)
Other comprehensive income (loss)	(106)					(106)
Noncontrolling interests							2
Total Equity at Dec. 31, 2011	4,435
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2011		4,433	0	312	5,253	(1,132)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	(114)				(114)
Dividends declared					(784)
Other					0
Other comprehensive income (loss)	(213)					(213)
Noncontrolling interests	2						2
Total Equity at Dec. 31, 2012	3,324
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2012	3,322	3,322	0	312	4,355	(1,345)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Union Carbide Corporation	748				748
Dividends declared					(661)
Other					0
Other comprehensive income (loss)	300					300
Noncontrolling interests	2						2
Total Equity at Dec. 31, 2013	3,711
Union Carbide Corporation's Stockholder's Equity, Ending at Dec. 31, 2013	$ 3,709	$ 3,709	$ 0	$ 312	$ 4,442	$ (1,045)