Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities
Net income attributable to Union Carbide Corporation	$ 381	$ 594	$ 375
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	170	199	202
Provision (credit) for deferred income tax	(18)	5	140
Net gain on sales of property and investments	(1)	(3)	(6)
Gain (Loss) on Sale of Investments	206	0	0
Restructuring and asset related charges - net	14	0	1
Net periodic pension benefit cost (credit)	184	9	(5)
Pension contributions	(2)	(3)	(549)
Other Noncash Expense	0	0	11
Changes in assets and liabilities:
Accounts and notes receivable	31	14	(22)
Related company receivables	225	658	(24)
Inventories	22	(6)	(48)
Accounts payable	4	(89)	132
Related company payables	26	(190)	210
Asbestos-related payments	(80)	(69)	(82)
Other assets and liabilities	(52)	75	71
Cash provided by operating activities	698	1,194	406
Change in noncurrent receivable from related company	6	7	(2)
Investing Activities
Capital expenditures	(274)	(143)	(121)
Proceeds from sale of ownership interest in related party	206	0	0
Proceeds from sales of property and investments	12	3	7
Cash used for investing activities	(50)	(133)	(116)
Financing Activities
Dividends paid to parent	(512)	(1,063)	(288)
Changes in short-term notes payable	(3)	4	0
Repayment of Long-Term Debt, Long-Term Lease Obligation, and Capital Security	132	3	2
Cash used for financing activities	(647)	(1,062)	(290)
Summary
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	1	(1)	0
Cash and cash equivalents at beginning of year	10	11	11
Cash and cash equivalents at end of year	$ 11	$ 10	$ 11