Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Statement of Cash Flows [Abstract]
Net income attributable to Union Carbide Corporation	$ 475	$ 120
Depreciation and amortization	150	150
Provision (credit) for deferred income tax	8	48
Net gain on sales of property and investments	1	0
Restructuring and asset related charges - net	0	1
Net periodic pension benefit cost	6	(3)
Pension contributions	(2)	(548)
Other Noncash Income	(2)	9
Accounts and notes receivable	2	(5)
Related company receivables	297	377
Inventories	(37)	(8)
Accounts payable	(37)	65
Related company payables	(69)	(25)
Asbestos-related payments	(58)	(51)
Increase (Decrease) in Other Operating Assets and Liabilities, Net	128	76
Cash provided by operating activities	860	206
Capital expenditures	(91)	(85)
Change in noncurrent receivable from related company	(1)	(3)
Proceeds from Sales of Business, Affiliate and Productive Assets	1	1
Cash used for investing activities	(91)	(87)
Dividends paid to parent	(768)	(118)
Repayments of Long-term Debt	2	2
Cash used for financing activities	(770)	(120)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(1)	(1)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance	11	11
Cash and cash equivalents at end of period	$ 10	$ 10