Consolidated Statements of Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Net trade sales	$ 186	$ 168	$ 165
Net sales to related companies	6,694	6,337	4,899
Total Net Sales	6,880	6,505	5,064
Cost of sales	6,493	5,940	4,457
Research and development expenses	47	43	48
Selling, general and administrative expenses	10	13	10
Restructuring charges	0	2	161
Asbestos-related credit	0	54	0
Equity in earnings of nonconsolidated affiliates	69	50	45
Sundry income (expense) - net	(96)	(10)	479
Interest income	33	55	65
Interest expense and amortization of debt discount	34	37	42
Income Before Income Taxes	302	619	935
Provision for income taxes	87	160	239
Net Income Attributable to Union Carbide Corporation	$ 215	$ 459	$ 696