10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________to___________

Commission File Number: 1-1463

Union Carbide Corporation

(Exact name of registrant as specified in its charter)

New York	13-1421730
(State or other jurisdiction of      incorporation or organization)	(I.R.S. Employer Identification No.)

7501 STATE HIGHWAY 185 NORTH, SEADRIFT, TX  77983

(Address of principal executive offices) (Zip Code)

 Registrant's telephone number, including area code:  361-553-2997

Securities registered pursuant to Section 12(b) of the Act: None

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

☑ Yes  ☐  No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

☑ Yes ☐  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☑	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

☐ Yes ☑  No

At September 30, 2021, 935.51 shares of common stock were outstanding, all of which were held by the registrant’s parent, The Dow Chemical Company.

The registrant meets the conditions set forth in General Instruction H(1)(a) and (b) for Form 10-Q and is therefore filing this form with a reduced disclosure format.

1

Union Carbide Corporation

QUARTERLY REPORT ON FORM 10-Q

For the quarterly period ended September 30, 2021

TABLE OF CONTENTS

		Page
PART I - FINANCIAL INFORMATION
Item 1.	Financial Statements.	4
	Consolidated Statements of Income.	4
	Consolidated Statements of Comprehensive Income.	5
	Consolidated Balance Sheets.	6
	Consolidated Statements of Cash Flows.	7
	Consolidated Statements of Equity.	8
	Notes to the Consolidated Financial Statements.	9
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations.	17
	Results of Operations.	18
	Other Matters.	20
Item 3.	Quantitative and Qualitative Disclosures About Market Risk.	21
Item 4.	Controls and Procedures.	21
PART II - OTHER INFORMATION
Item 1.	Legal Proceedings.	22
Item 1A.	Risk Factors.	22
Item 4.	Mine Safety Disclosures.	22
Item 6.	Exhibits.	22
SIGNATURES		23

2

Union Carbide Corporation and Subsidiaries

Throughout this Quarterly Report on Form 10-Q, except as otherwise indicated by the context, the terms "Corporation" or "UCC" as used herein mean Union Carbide Corporation and its subsidiaries.

CAUTIONARY STATEMENT ABOUT FORWARD-LOOKING STATEMENTS

Certain statements in this report are "forward-looking statements" within the meaning of the federal securities laws, including Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such statements often address expected future business and financial performance, financial condition, and other matters, and often contain words or phrases such as “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “opportunity,” “outlook,” “plan,” “project,” “seek,” “should,” “strategy,” “target,” “will,” “will be,” “will continue,” “will likely result,” “would” and similar expressions, and variations or negatives of these words or phrases.

Forward-looking statements are based on current assumptions and expectations of future events that are subject to risks, uncertainties and other factors that are beyond the Corporation’s control, which may cause actual results to differ materially from those projected, anticipated or implied in the forward-looking statements and speak only as of the date the statements were made. These factors include, but are not limited to: sales of UCC's products; UCC's expenses, future revenues and profitability; the continuing global and regional economic impacts of the coronavirus disease 2019 pandemic and other public health-related risks and events on the Corporation’s business; capital requirements and need for and availability of financing; unexpected barriers in the development of technology, including with respect to UCC’s contemplated capital and operating projects; significant litigation and environmental matters and related contingencies and unexpected expenses; the success of competing technologies that are or may become available; the ability to protect UCC's intellectual property in the United States and abroad; developments related to contemplated restructuring activities and proposed divestitures or acquisitions such as workforce reduction, manufacturing facility and/or asset closure and related exit and disposal activities, and the benefits and costs associated with each of the foregoing; fluctuations in energy and raw material prices; management of process safety and product stewardship; changes in consumer preferences and demand; changes in laws and regulations, political conditions or industry development; global economic and capital markets conditions, such as inflation, market uncertainty, interest and currency exchange rates, and equity and commodity prices; business or supply disruptions; security threats, such as acts of sabotage, terrorism or war; weather events and natural disasters; disruptions in the Corporation’s information technology networks and systems; and, since The Dow Chemical Company ("TDCC"), a wholly owned subsidiary of Dow Inc. (together, with TDCC and its consolidated subsidiaries, "Dow"), is the primary customer of UCC: Dow's ability to realize its commitment to carbon neutrality on the contemplated timeframe; the size of the markets for Dow’s products and services and its ability to compete in such markets; Dow's failure to develop and market new products and optimally manage product life cycles; the rate and degree of market acceptance of Dow’s products; and changes in relationships with Dow’s significant customers and suppliers.

Where, in any forward-looking statement, an expectation or belief as to future results or events is expressed, such expectation or belief is based on the current plans and expectations of management and expressed in good faith and believed to have a reasonable basis, but there can be no assurance that the expectation or belief will result or be achieved or accomplished. A detailed discussion of principal risks and uncertainties which may cause actual results and events to differ materially from such forward-looking statements is included in the section titled "Risk Factors" contained in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2020. These are not the only risks and uncertainties that the Corporation faces. There may be other risks and uncertainties that the Corporation is unable to identify at this time or that it does not currently expect to have a material impact on its business. If any of those risks or uncertainties develops into an actual event, it could have a material adverse effect on the Corporation’s business. The Corporation assumes no obligation to update or revise publicly any forward-looking statements whether because of new information, future events, or otherwise, except as required by securities and other applicable laws.

3

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Union Carbide Corporation and Subsidiaries

Consolidated Statements of Income

	Three Months Ended				Nine Months Ended
In millions (Unaudited)	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Net trade sales	$	31	$	25	$	102	$	75
Net sales to related companies	1,244		817		3,502		2,679
Total net sales	1,275		842		3,604		2,754
Cost of sales	1,093		787		3,338		2,359
Research and development expenses	7		6		19		17
Selling, general and administrative expenses	2		2		7		6
Restructuring and asset related charges - net	1		13		1		15
Sundry income (expense) - net	(10)		45		(43)		5
Interest income	1		1		2		10
Interest expense and amortization of debt discount	5		7		19		26
Income before income taxes	158		73		179		346
Provision for income taxes	54		14		59		73
Net income attributable to Union Carbide Corporation	$	104	$	59	$	120	$	273
Depreciation	$	41	$	46	$	124	$	137
Capital expenditures	$	32	$	34	$	85	$	99

See Notes to the Consolidated Financial Statements.

4

Union Carbide Corporation and Subsidiaries

Consolidated Statements of Comprehensive Income

	Three Months Ended				Nine Months Ended
In millions (Unaudited)	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Net income attributable to Union Carbide Corporation	$	104	$	59	$	120	$	273
Other comprehensive income, net of tax
Cumulative translation adjustments	1		—		1		3
Pension and other postretirement benefit plans	21		20		125		59
Total other comprehensive income	22		20		126		62
Comprehensive income attributable to Union Carbide Corporation	$	126	$	79	$	246	$	335

See Notes to the Consolidated Financial Statements.

5

Union Carbide Corporation and Subsidiaries

Consolidated Balance Sheets

In millions, except share amounts (Unaudited)	Sep 30, 2021		Dec 31, 2020
Assets
Current Assets
Cash and cash equivalents	$	10	$	11
Accounts receivable:
Trade (net of allowance for doubtful receivables 2021: $—; 2020: $—)	26		26
Related companies	1,016		698
Other	35		27
Income taxes receivable	277		337
Notes receivable from related companies	965		1,660
Inventories	212		223
Other current assets	32		17
Total current assets	2,573		2,999
Investments
Investments in related companies	237		237
Other investments	22		22
Noncurrent receivables	127		124
Noncurrent receivables from related companies	69		66
Total investments	455		449
Property
Property	7,163		7,089
Less accumulated depreciation	5,946		5,824
Net property	1,217		1,265
Other Assets
Intangible assets (net of accumulated amortization 2021: $102; 2020: $97)	13		16
Operating lease right-of-use assets	110		123
Deferred income tax assets	409		494
Deferred charges and other assets	39		29
Total other assets	571		662
Total Assets	$	4,816	$	5,375
Liabilities and Equity
Current Liabilities
Notes payable to related companies	$	28	$	33
Long-term debt due within one year	3		2
Accounts payable:
Trade	304		229
Related companies	389		409
Other	18		28
Operating lease liabilities - current	19		19
Income taxes payable	22		23
Asbestos-related liabilities - current	85		85
Accrued and other current liabilities	156		139
Total current liabilities	1,024		967
Long-Term Debt	393		391
Other Noncurrent Liabilities
Pension and other postretirement benefits - noncurrent	614		1,340
Asbestos-related liabilities - noncurrent	962		1,013
Operating lease liabilities - noncurrent	92		105
Other noncurrent obligations	245		201
Total other noncurrent liabilities	1,913		2,659
Stockholder's Equity
Common stock (authorized: 1,000 shares of $0.01 par value each; issued: 935.51 shares)	—		—
Additional paid-in capital	141		141
Retained earnings	2,989		2,987
Accumulated other comprehensive loss	(1,644)		(1,770)
Union Carbide Corporation's stockholder's equity	1,486		1,358
Total Liabilities and Equity	$	4,816	$	5,375

See Notes to the Consolidated Financial Statements.

6

Union Carbide Corporation and Subsidiaries

Consolidated Statements of Cash Flows

	Nine Months Ended
In millions (Unaudited)	Sep 30, 2021		Sep 30, 2020
Operating Activities
Net income attributable to Union Carbide Corporation	$	120	$	273
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	150		159
Provision for deferred income tax	48		3
Net gain on sales of property and investments	—		(87)
Restructuring and asset related charges - net	1		15
Net periodic pension benefit cost (credit)	(3)		41
Pension contributions	(548)		(2)
Net loss on early extinguishment of debt	—		19
Other, net	9		—
Changes in assets and liabilities:
Accounts and notes receivable	(5)		11
Related company receivables	377		(29)
Inventories	(8)		15
Accounts payable	65		14
Related company payables	(25)		(76)
Asbestos-related payments	(51)		(49)
Other assets and liabilities	76		(21)
Cash provided by operating activities	206		286
Investing Activities
Capital expenditures	(85)		(99)
Change in noncurrent receivable from related company	(3)		—
Proceeds from sales of property	1		98
Cash used for investing activities	(87)		(1)
Financing Activities
Dividends paid to parent	(118)		(187)
Changes in short-term notes payable	—		5
Payments on long-term debt	(2)		(84)
Transaction financing, debt issuance and other costs	—		(19)
Cash used for financing activities	(120)		(285)
Summary
Increase (decrease) in cash and cash equivalents	(1)		—
Cash and cash equivalents at beginning of period	11		11
Cash and cash equivalents at end of period	$	10	$	11

See Notes to the Consolidated Financial Statements.

7

Union Carbide Corporation and Subsidiaries

Consolidated Statements of Equity

	Three Months Ended				Nine Months Ended
In millions (Unaudited)	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Common Stock
Balance at beginning and end of period	$	—	$	—	$	—	$	—
Additional Paid-in Capital
Balance at beginning and end of period	141		141		141		141
Retained Earnings
Balance at beginning of period	2,963		2,974		2,987		2,922
Net income attributable to Union Carbide Corporation	104		59		120		273
Dividends declared	(78)		(25)		(118)		(187)
Balance at end of period	2,989		3,008		2,989		3,008
Accumulated Other Comprehensive Loss, Net of Tax
Balance at beginning of period	(1,666)		(1,623)		(1,770)		(1,665)
Other comprehensive income	22		20		126		62
Balance at end of period	(1,644)		(1,603)		(1,644)		(1,603)
Union Carbide Corporation's Stockholder's Equity	$	1,486	$	1,546	$	1,486	$	1,546

See Notes to the Consolidated Financial Statements.

8

Union Carbide Corporation and Subsidiaries

(Unaudited)

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

Table of Contents

Note		Page
1	Consolidated Financial Statements	9
2	Recent Accounting Guidance	10
3	Revenue	10
4	Inventories	10
5	Intangible Assets	11
6	Commitments and Contingent Liabilities	11
7	Leases	12
8	Accumulated Other Comprehensive Loss	14
9	Pension and Other Postretirement Benefit Plans	15
10	Fair Value Measurements	16
11	Related Party Transactions	16

NOTE 1 - CONSOLIDATED FINANCIAL STATEMENTS

Basis of Presentation

The unaudited interim consolidated financial statements of Union Carbide Corporation and its subsidiaries (the "Corporation" or "UCC") were prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and reflect all adjustments (including normal recurring accruals) which, in the opinion of management, are considered necessary for the fair presentation of the results for the periods presented. These statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2020 ("2020 10-K").

The Corporation is a wholly owned subsidiary of The Dow Chemical Company ("TDCC"). In accordance with the accounting guidance for earnings per share, the presentation of earnings per share is not required in financial statements of wholly owned subsidiaries.

The Corporation’s business activities comprise components of TDCC’s global operations rather than stand-alone operations. TDCC conducts its worldwide operations through global businesses. Because there are no separate reportable business segments for UCC under the accounting guidance related to segment reporting and no detailed business information is provided to a chief operating decision maker regarding the Corporation’s stand-alone operations, the Corporation’s results are reported as a single operating segment.

Intercompany transactions and balances are eliminated in consolidation. Transactions with the Corporation’s parent company, TDCC, and other subsidiaries of TDCC, have been reflected as related company transactions in the consolidated financial statements. See Note 11 for additional information.

9

NOTE 2 - RECENT ACCOUNTING GUIDANCE

Recently Adopted Accounting Guidance

In the first quarter of 2021, the Corporation adopted Accounting Standards Update 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes." The amendments simplify the accounting for income taxes by removing certain exceptions to the general principles of Topic 740, "Income Taxes" and improve consistent application by clarifying and amending existing guidance. The adoption of this guidance did not have a material impact on the consolidated financial statements.

NOTE 3 - REVENUE

Substantially all of the Corporation's revenue is generated by sales to TDCC. Products are sold to and purchased from TDCC at prices determined in accordance with the terms of an agreement between UCC and TDCC. The Corporation's revenue related to sales of product was approximately 99 percent and 97 percent for the three and nine months ended September 30, 2021, respectively (98 percent and 99 percent for the three and nine months ended September 30, 2020, respectively); the remaining revenue primarily related to the licensing of patents and technology. The Corporation sells its products to TDCC to simplify the customer interface process.

The Corporation’s contract liabilities include payments received in advance of performance under long-term contracts for product sales and royalties with remaining contract terms that range up to 20 years. Amounts are recognized in revenue when the performance obligations for the contract are met. The Corporation has rights to additional consideration when product is delivered to the customer. The balance of contract liabilities was $39 million at September 30, 2021 ($40 million at December 31, 2020), of which $6 million ($5 million at December 31, 2020) was included in "Accrued and other current liabilities" and $33 million ($35 million at December 31, 2020) was included in "Other noncurrent obligations" in the consolidated balance sheets.

The Corporation disaggregates its revenue from contracts with customers by type of customer (sales to related companies and sales to trade customers) as presented in the consolidated statements of income and believes this disaggregation best depicts the nature, amount, timing and uncertainty of its revenue and cash flows. Substantially all of the product sales are made to the Corporation's parent company, TDCC, and there are no unique economic factors that affect revenue recognition and cash flows associated with these product sales.

NOTE 4 - INVENTORIES

The following table provides a breakdown of inventories:

Inventories	Sep 30, 2021		Dec 31, 2020
In millions
Finished goods	$	212	$	157
Work in process	34		23
Raw materials	46		38
Supplies	78		98
Total	$	370	$	316
Adjustment of inventories to a LIFO basis	(158)		(93)
Total inventories	$	212	$	223

A reduction of certain inventories resulted in the liquidation of related LIFO inventory layers, which increased pretax income $13 million and $16 million for the three and nine months ended September 30, 2021, respectively, and had an immaterial impact on pretax income for the three and nine months ended September 30, 2020.

10

NOTE 5 - INTANGIBLE ASSETS

The following table provides information regarding the Corporation’s intangible assets:

Intangible Assets	Sep 30, 2021						Dec 31, 2020
In millions	Gross Carrying Amount		Accum Amort		Net		Gross Carrying Amount		Accum Amort		Net
Intangible assets with finite lives:
Developed technology	$	33	$	(33)	$	—	$	33	$	(33)	$	—
Software	82		(69)		13		80		(64)		16
Total intangible assets	$	115	$	(102)	$	13	$	113	$	(97)	$	16

Total estimated amortization expense for 2021 and the five succeeding fiscal years, including amounts expected to be capitalized, is as follows:

Estimated Amortization Expense
In millions
2021	$	6
2022	$	5
2023	$	3
2024	$	2
2025	$	1
2026	$	—

NOTE 6 - COMMITMENTS AND CONTINGENT LIABILITIES

A summary of the Corporation's commitments and contingent liabilities can be found in Note 14 to the Consolidated Financial Statements included in the 2020 10-K, which is incorporated by reference herein.

Environmental Matters

Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies. At September 30, 2021, the Corporation had accrued obligations of $143 million for probable environmental remediation and restoration costs, including $19 million for the remediation of Superfund sites. These obligations are included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets. This is management’s best estimate of the costs for remediation and restoration with respect to environmental matters for which the Corporation has accrued liabilities, although it is reasonably possible that the ultimate cost with respect to these particular matters could range up to approximately two and a half times that amount. Consequently, it is reasonably possible that environmental remediation and restoration costs in excess of amounts accrued could have a material impact on the Corporation's results of operations, financial condition and cash flows. It is the opinion of the Corporation’s management that the possibility is remote that costs in excess of the range disclosed will have a material impact on the Corporation’s results of operations, financial condition and cash flows. Inherent uncertainties exist in these estimates primarily due to unknown environmental conditions, changing governmental regulations and legal standards regarding liability, and emerging remediation technologies for handling site remediation and restoration. As new or additional information becomes available and/or certain spending trends become known, management will evaluate such information in determination of the current estimate of the environmental liability. At December 31, 2020, the Corporation had accrued obligations of $133 million for probable environmental remediation and restoration costs, including $18 million for the remediation of Superfund sites.

11

Litigation

Asbestos-Related Matters

Each quarter, the Corporation reviews claims filed, settled and dismissed, as well as average settlement and resolution costs by disease category. The Corporation also considers additional quantitative and qualitative factors such as the nature of pending claims, trial experience of the Corporation and other asbestos defendants, current spending for defense and processing costs, significant appellate rulings and legislative developments, trends in the tort system, and their respective effects on expected future resolution costs. UCC management considers these factors in conjunction with the most recent actuarial study and determines whether a change in the estimate is warranted. Based on the Corporation's review of 2021 activity, it was determined that no adjustment to the accrual was required at September 30, 2021.

The Corporation’s total asbestos-related liability for pending and future claims and defense and processing costs was $1,047 million at September 30, 2021 ($1,098 million at December 31, 2020), and was included in “Asbestos-related liabilities - current” and “Asbestos-related liabilities - noncurrent” in the consolidated balance sheets. At September 30, 2021, approximately 24 percent of the recorded claim liability related to pending claims and approximately 76 percent related to future claims.

NOTE 7 - LEASES

For additional information on the Corporation's leases, see Note 15 to the Consolidated Financial Statements included in the 2020 10-K.

The components of lease cost for operating and finance leases for the three and nine months ended September 30, 2021 and 2020 were as follows:

Lease Cost	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Operating lease cost	$	5	$	5	$	17	$	15
Short-term lease cost	7		6		21		17
Variable lease cost	14		2		32		6
Amortization of right-of-use assets - finance	1		—		2		1
Total lease cost	$	27	$	13	$	72	$	39

The following table provides supplemental cash flow and other information related to leases:

Other Lease Information	Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	17	$	14
Financing cash flows for finance leases	$	2	$	1
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	—	$	8
Finance leases	$	5	$	1

12

The following table summarizes the lease-related assets and liabilities recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020:

Lease Position	Balance Sheet Classification	Sep 30, 2021		Dec 31, 2020
In millions
Assets
Operating lease assets	Operating lease right-of-use assets	$	110	$	123
Finance lease assets	Property	19		15
Finance lease amortization	Accumulated depreciation	(10)		(8)
Total lease assets		$	119	$	130
Liabilities
Current
Operating	Operating lease liabilities - current	$	19	$	19
Finance	Long-term debt due within one year	3		2
Noncurrent
Operating	Operating lease liabilities - noncurrent	92		105
Finance	Long-term debt	6		5
Total lease liabilities		$	120	$	131

The weighted-average remaining lease term and discount rate for leases recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020 are provided below:

Lease Term and Discount Rate	Sep 30, 2021		Dec 31, 2020
Weighted-average remaining lease term
Operating leases	6.9 years		7.5 years
Finance leases	3.4 years		3.4 years
Weighted-average discount rate
Operating leases	3.29	%	3.28	%
Finance leases	2.59	%	3.62	%

The following table provides the maturities of lease liabilities at September 30, 2021:

Maturities of Lease Liabilities	Sep 30, 2021
	Operating Leases		Finance Leases
In millions
2021	$	5	$	1
2022	22		3
2023	21		3
2024	20		2
2025	18		1
2026 and thereafter	38		—
Total future undiscounted lease payments	$	124	$	10
Less: Imputed interest	13		1
Total present value of lease liabilities	$	111	$	9

13

NOTE 8 - ACCUMULATED OTHER COMPREHENSIVE LOSS

The changes in the balances for each component of accumulated other comprehensive loss ("AOCL") for the three and nine months ended September 30, 2021 and 2020 were as follows:

Accumulated Other Comprehensive Loss	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Cumulative Translation Adjustment
Beginning balance	$	(55)	$	(53)	$	(55)	$	(56)
Unrealized gains (losses) on foreign currency translation	1		(1)		1		2
(Gains) losses reclassified from AOCL to net income 1	—		1		—		1
Other comprehensive income (loss), net of tax	1		—		1		3
Ending balance	$	(54)	$	(53)	$	(54)	$	(53)
Pension and Other Postretirement Benefits
Beginning balance	$	(1,611)	$	(1,570)	$	(1,715)	$	(1,609)
Gains (losses) arising during the period 2	—		—		87		—
Tax (expense) benefit	—		—		(20)		—
Net gains (losses) arising during the period	—		—		67		—
Amortization and recognition of net loss 3	27		26		76		77
Tax expense (benefit) 4	(6)		(6)		(18)		(18)
Net loss reclassified from AOCL to net income	21		20		58		59
Other comprehensive income (loss), net of tax	21		20		125		59
Ending balance	$	(1,590)	$	(1,550)	$	(1,590)	$	(1,550)
Total AOCL ending balance	$	(1,644)	$	(1,603)	$	(1,644)	$	(1,603)

1.Reclassified to "Sundry income (expense) - net."

2.See Note 9 for additional information.

3.These AOCL components are included in the computation of net periodic benefit cost (credit) of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 9 for additional information.

4.Reclassified to "Provision for income taxes."

14

NOTE 9 - PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

A summary of the Corporation's pension and other postretirement benefit plans can be found in Note 17 to the Consolidated Financial Statements included in the 2020 10-K.

On March 4, 2021, TDCC announced changes to the design of its U.S. tax-qualified and non-qualified pension plans, including the plans of the Corporation (the “UCC Plans”). Effective December 31, 2023 (“Effective Date”), the Corporation will freeze the pensionable compensation and credited service amounts used to calculate pension benefits for employees who participate in the UCC Plans. As a result, at the Effective Date and subject to any bargaining obligations required by law, active participants of the UCC Plans will not accrue additional benefits for future service and compensation. Additionally, contributions to U.S. tax-qualified and non-qualified defined contribution plans will be harmonized across the U.S. eligible employee population of TDCC and its consolidated subsidiaries. The new matching contribution, beginning January 1, 2022, will allow all eligible U.S. employees to receive matching contributions of up to 5 percent of their eligible compensation. In addition, beginning on January 1, 2024, all eligible U.S. employees will receive an automatic non-elective contribution of 4 percent of eligible compensation to their respective defined contribution plans.

The Corporation's funding policy is to contribute to pension plans when pension laws and/or economics either require or encourage funding. On March 4, 2021, the Corporation elected to contribute $545 million to its tax-qualified pension plan, funded by the Corporation's notes receivable from TDCC, and, as a result, increased its estimated total 2021 pension contributions to approximately $550 million, of which $548 million has been contributed through September 30, 2021.

In connection with the foregoing plan amendments, the Corporation remeasured the UCC Plans effective February 28, 2021, which resulted in a pretax actuarial gain of $87 million, reflected in other comprehensive income and inclusive of a $14 million reduction in the projected benefit obligation resulting from the plan amendments, and a pretax curtailment gain of $7 million, recognized in the first quarter of 2021.

The following table provides the components of the Corporation's net periodic benefit cost (credit) for all significant plans:

Net Periodic Benefit Cost (Credit) for All Significant Plans	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Defined Benefit Pension Plans
Service cost	$	6	$	9	$	20	$	26
Interest cost	21		28		61		84
Expected return on plan assets	(56)		(50)		(163)		(150)
Amortization of prior service credit	(1)		—		(1)		—
Amortization of net loss	29		27		87		81
Curtailment gain	—		—		(7)		—
Net periodic benefit cost (credit)	$	(1)	$	14	$	(3)	$	41
Other Postretirement Benefit Plan
Service cost	$	1	$	—	$	1	$	1
Interest cost	—		1		2		4
Amortization of net gain	(1)		(1)		(3)		(4)
Net periodic benefit cost	$	—	$	—	$	—	$	1

Net periodic benefit cost (credit), other than the service cost component, is included in "Sundry income (expense) - net" in the consolidated statements of income.

15

NOTE 10 - FAIR VALUE MEASUREMENTS

The Corporation's financial instruments are classified as Level 2 measurements. For assets and liabilities classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability, or by using observable market data points of similar, more liquid securities to imply the price. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance and quality checks.

The following table summarizes the fair value of the Corporation's financial instruments at September 30, 2021 and December 31, 2020:

Fair Value of Financial Instruments	Sep 30, 2021								Dec 31, 2020
In millions	Cost		Gain		Loss		Fair Value		Cost		Gain		Loss		Fair Value
Cash equivalents 1	$	10	$	—	$	—	$	10	$	10	$	—	$	—	$	10
Long-term debt including debt due within one year	$	(396)	$	—	$	(145)	$	(541)	$	(393)	$	—	$	(120)	$	(513)

1.Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value.

Cost approximates fair value for all other financial instruments.

NOTE 11 - RELATED PARTY TRANSACTIONS

A summary of the Corporation's related party transactions can be found in Note 19 to the Consolidated Financial Statements included in the 2020 10-K.

Product and Services Agreements

The following table summarizes UCC’s transactions with TDCC and a TDCC subsidiary related to product and services agreements for the three and nine months ended September 30, 2021 and 2020:

Product and Services Agreements Transactions	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020		Income Statement Classification
In millions
TDCC Subsidiary:
Commodity and raw materials purchases 1	$	382	$	270	$	1,360	$	707	Cost of sales
Commission expense	$	4	$	5	$	16	$	16	Sundry income (expense) - net
TDCC:
General administrative and overhead type services and service fee 2	$	12	$	7	$	47	$	23	Sundry income (expense) - net
Activity-based costs	$	18	$	19	$	55	$	66	Cost of sales

1.Period-end balances on hand are included in inventory. The increase in purchase costs was primarily due to higher feedstock and energy costs, which includes the impact of Winter Storm Uri in the first quarter of 2021.

2.The increase in services and fees resulted from TDCC's periodic review of the actual cost of services provided to UCC in accordance with related agreements.

Dividends

The following table summarizes cash dividends declared and paid to TDCC for the three and nine months ended September 30, 2021 and 2020:

Cash Dividends Declared and Paid	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
In millions
Cash dividends declared and paid	$	78	$	25	$	118	$	187

16

ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Pursuant to General Instruction H(1)(a) and (b) for Form 10-Q "Omission of Information by Certain Wholly-Owned Subsidiaries," the Corporation is filing this Form 10-Q with a reduced disclosure format.

References to "TDCC" refer to The Dow Chemical Company and its consolidated subsidiaries, except as otherwise indicated by the context. Union Carbide Corporation (the "Corporation" or "UCC") has been a wholly owned subsidiary of TDCC since 2001. TDCC has been a wholly owned subsidiary of Dow Inc. since 2019.

TDCC conducts its worldwide operations through global businesses. UCC's business activities comprise components of TDCC’s global businesses rather than stand-alone operations. Because there are no separate reportable business segments for UCC and no detailed business information is provided to a chief operating decision maker regarding the Corporation’s stand-alone operations, the Corporation’s results are reported as a single operating segment.

Statements on COVID-19 and U.S. Gulf Coast Freeze and Hurricane Ida

COVID-19

Additional information regarding actions taken by UCC since the onset of the pandemic can be found in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2020 ("2020 10-K").

The pandemic caused by coronavirus disease 2019 ("COVID-19") has impacted all geographic regions where UCC's products are produced and sold. Dow Inc. (together, with TDCC and its consolidated subsidiaries, "Dow") directs global safety, crisis management and security protocols for all of Dow's assets and workforce, which includes the assets and workforce of UCC. During this public health crisis, Dow is focused on the health and safety of its employees, contractors, customers and suppliers around the world and maintaining the safe and reliable operations of its manufacturing sites. Although supply disruptions and related logistical issues challenge all modes of transportation, UCC’s manufacturing sites have continued to operate during the COVID-19 pandemic, with no significant impact to manufacturing whether through shutdowns or shortages in labor, raw materials or personal protective equipment. Supply chain and logistical challenges are expected to stabilize in 2022. Contingency plans remain in place in the event of significant impacts from COVID-19 infection resurgences.

A significant number of UCC employees continue to work remotely. The Corporation continues to encourage its workforce to practice safe behaviors both in the workplace and while away from work to help prevent community spread of COVID-19. Dow and the Corporation continue to monitor ongoing mitigation efforts to appropriately implement Dow's comprehensive Return to Workplace plan. UCC sites continue to follow on-site workforce restrictions in accordance with government regulations. Certain locations have implemented advanced phases of Dow's Return to Workplace plan and it is expected that more locations will progress to their next phase as infection rates subside.

U.S. Gulf Coast Freeze and Hurricane Ida

In the first quarter of 2021, Winter Storm Uri had a broad impact on the U.S. Gulf Coast and in particular across the entire state of Texas, which resulted in widespread utility and raw material supply disruptions and industry-wide production outages. UCC's Texas City, Texas, ("Texas City") and Seadrift, Texas, ("Seadrift") operations were severely impacted with significant production disruptions that extended into mid-March at Seadrift and late March at Texas City, primarily due to precautionary shutdowns prior to the arrival of record low temperatures, raw material supply constraints and damage caused by extremely cold temperatures. While not as severely impacted, the Corporation's St. Charles, Louisiana, ("St. Charles") operations initiated certain precautionary shutdowns in anticipation of the record low temperatures and experienced raw material supply disruptions and equipment damage caused by the extreme cold. By March 31, 2021, UCC's ethylene production facilities and all sites were operational. As a result of the winter storm, the product and supply chain impacts created very tight industry supply dynamics which has resulted in higher raw material costs in addition to pricing momentum in certain end-markets.

17

In anticipation of Hurricane Ida making landfall in Louisiana, the Corporation safely shut down its St. Charles operations in late August 2021. While there was no major structural damage to UCC's production facilities, damage assessments and completion of repairs necessary to restart operations were negatively impacted by widespread utility and infrastructure damage in St. Charles Parish. Personnel completed repairs throughout September and initiated site-wide plant commissioning and start up in late September after power and utilities were restored. St. Charles operations returned to full operational capacity in mid-October 2021. To help local communities address both immediate- and longer-term needs, Dow committed $2 million to support relief and recovery efforts associated with the storm and its aftermath for impacted communities and employees.

RESULTS OF OPERATIONS

Net Sales

Total net sales were $1,275 million in the third quarter of 2021 compared with $842 million in the third quarter of 2020, an increase of 51 percent. Total net sales were $3,604 million for the first nine months of 2021 compared with $2,754 million for the first nine months of 2020, an increase of 31 percent. Net sales to related companies, principally to TDCC, were $1,244 million in the third quarter of 2021 compared with $817 million in the third quarter of 2020, an increase of 52 percent. Net sales to related companies were $3,502 million for the first nine months of 2021 compared with $2,679 million for the first nine months of 2020, an increase of 31 percent. Selling prices to TDCC are determined in accordance with the terms of an agreement between UCC and TDCC.

Average selling price increased 62 percent in the third quarter of 2021 compared with the same quarter last year. Price increased across all product lines, driven by continued supply constraints resulting from the U.S. Gulf Coast freeze and market demand, resulting in higher feedstock and other raw material costs, with the most significant price increases in polyethylene, oxo alcohols and plastics used for wire and cable applications. Volume decreased 11 percent in the third quarter of 2021 compared with the same quarter last year primarily due to the impact of Hurricane Ida, which resulted in the shutdown of the Corporation's St. Charles operations in late August 2021. Volume decreased across almost all product lines with the most significant volume decrease in polyethylene.

In the first nine months of 2021, average selling price increased 40 percent compared with the first nine months of 2020. Price increased across all product lines, driven by continued supply constraints resulting from the U.S. Gulf Coast freeze and market demand, resulting in higher feedstock and other raw material costs, with the most significant price increases in polyethylene, oxo alcohols, plastics used for wire and cable applications, and acrylic monomers. Volume for the first nine months of 2021 decreased 9 percent compared with the first nine months of 2020, with decreases across almost all product lines as Hurricane Ida and freeze-related impacts on the U.S. Gulf Coast severely impacted production, and the Corporation undertook significant planned maintenance turnaround projects. The most significant volume decreases were in oxo alcohols, polyethylene and ethylene oxide/ethylene glycol.

Cost of Sales

Cost of sales was $1,093 million in the third quarter of 2021 compared with $787 million in the third quarter of 2020, an increase of 39 percent, driven by higher feedstock and energy costs, Hurricane Ida related repair and start-up costs totaling approximately $30 million and higher planned maintenance turnaround activity. Cost of sales was $3,338 million for the first nine months of 2021 compared with $2,359 million for the first nine months of 2020, an increase of 42 percent, primarily due to higher feedstock and energy costs; the impact of Winter Storm Uri, which included higher raw material costs and repair and start-up costs totaling approximately $30 million; Hurricane Ida related repair and start-up costs; and a $14 million environmental charge.

Restructuring and Asset Related Charges - Net

On September 30, 2020, the Corporation's Board of Directors ("the Board") approved restructuring actions that were aligned to the structural cost improvement initiatives announced by Dow Inc. in response to the continued economic impact from the pandemic caused by COVID-19. The restructuring program is designed to reduce structural costs and enable the Corporation to further enhance competitiveness while the COVID-19 economic recovery gains traction. This program includes workforce cost reductions and actions to rationalize the Corporation's manufacturing assets. These actions are expected to be substantially complete by the end of 2021.

18

As a result of these actions, in the third quarter of 2020 the Corporation recorded pretax restructuring charges of $13 million, consisting of severance and related benefit costs of $9 million and asset write-downs and write-offs of $4 million. In the third quarter of 2021, the Corporation recorded a pretax restructuring charge of $1 million for additional severance and related benefit costs.

Sundry Income (Expense) – Net

Sundry income (expense) – net includes a variety of income and expense items such as charges for management services provided by TDCC, non-operating pension and other postretirement benefit plan credits or costs, commissions, gains and losses on sales of investments and assets, losses on early extinguishment of debt and gains and losses on foreign currency exchange.

Sundry income (expense) – net in the third quarter of 2021 was expense of $10 million compared with income of $45 million in the same quarter last year. For the first nine months of 2021, sundry income (expense) – net was expense of $43 million compared with income of $5 million for the first nine months of 2020. The change is primarily the result of significant one-time transactions recorded in the third quarter of 2020, consisting of a pretax gain of $86 million related to the sale of UCC's rail infrastructure operations and assets at its St. Charles and Seadrift sites and a pretax loss of $19 million on the early extinguishment of debt. Additionally, the three and nine months ended September 30, 2021 included non-operating pension benefit plan credits resulting from the announced freeze of plan benefits (effective December 31, 2023) and the impact of the Corporation's elective contribution to its tax-qualified pension plan in 2021, compared with non-operating pension benefit plan costs in the three and nine months ended September 30, 2020, and an increase in charges for management services provided by TDCC in 2021 relative to 2020.

Interest Income

Interest income was $1 million in the third quarter of 2021 and 2020. For the first nine months of 2021, interest income was $2 million compared with $10 million for the first nine months of 2020. The decrease in interest income primarily resulted from the significant drop in interest rates in the first quarter of 2020, reflecting the current interest rate environment and the decrease in the Corporation's notes receivable from related companies.

Interest Expense and Amortization of Debt Discount

Interest expense and amortization of debt discount was $5 million in the third quarter of 2021 compared with $7 million in the third quarter of 2020 and $19 million for the first nine months of 2021 compared with $26 million for the first nine months of 2020. The decrease was primarily due to the payment of interest and penalties in May 2020 to settle sales and use tax disputes in Seadrift and Texas City and also reflects reduced interest expense resulting from the redemption of debt in September 2020.

Provision for Income Taxes

The Corporation reported a tax provision of $54 million in the third quarter of 2021, which resulted in an effective tax rate of 34.2 percent compared with $14 million in the third quarter of 2020, which resulted in an effective tax rate of 19.2 percent. For the first nine months of 2021, the Corporation reported a tax provision of $59 million, which resulted in an effective tax rate of 33.0 percent, compared with $73 million for the first nine months of 2020, which resulted in an effective tax rate of 21.1 percent. In the third quarter of 2021, the Corporation recognized an uncertain tax position related to litigation in a foreign jurisdiction which negatively impacted the effective tax rate.

Net Income Attributable to UCC

The Corporation reported net income of $104 million in the third quarter of 2021 compared with $59 million in the third quarter of 2020. The increase in net income was driven by price increases resulting from supply constraints and market demand, partially offset by production disruptions, higher feedstock and energy costs and unplanned repair and start-up costs . Net income for the first nine months of 2021 was $120 million compared with $273 million for the first nine months of 2020. The decrease in net income was driven primarily by production disruptions, higher feedstock and energy costs, and unplanned repair and start-up costs.

Capital Expenditures

Capital expenditures in the third quarter of 2021 were $32 million compared with $34 million in the third quarter of 2020 and $85 million for the first nine months of 2021 compared with $99 million for the first nine months of 2020. Capital expenditures decreased as spending for U.S. Gulf Coast projects and site infrastructure projects continues to trend down and the Corporation continues to limit capital expenditures to retain the financial strength of the Corporation while the COVID-19 economic recovery continues.

19

Pension Plan Changes

On March 4, 2021, TDCC announced changes to the design of its U.S. tax-qualified and non-qualified pension plans, including the plans of the Corporation (the “UCC Plans”) and, effective December 31, 2023, the Corporation will freeze the pensionable compensation and credited service amounts used to calculate pension benefits for employees who participate in the plans. Additionally, the Corporation contributed $545 million to its tax-qualified pension plan, of which $81 million was anticipated to satisfy minimum required contributions based on the pre‑existing plan design and market conditions at December 31, 2020.

In connection with the foregoing plan amendments and inclusive of the additional discretionary contribution to the U.S. tax-qualified plan, the Corporation remeasured the UCC Plans effective February 28, 2021, which resulted in a decrease of $45 million in expected net periodic pension benefit cost for 2021, inclusive of a curtailment gain of $7 million, recognized in the first quarter of 2021. The Corporation expects a credit for net periodic pension benefit cost of approximately $5 million in 2021, inclusive of the curtailment gain. See Note 9 to the Consolidated Financial Statements for additional information related to the Corporation's pension plans.

OTHER MATTERS

Recent Accounting Guidance

See Note 2 to the Consolidated Financial Statements for a summary of recent accounting guidance.

Critical Accounting Estimates

The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires management to make judgments, assumptions and estimates that affect the amounts reported in the consolidated financial statements and accompanying notes. Note 1 to the Consolidated Financial Statements in the Corporation's 2020 10-K describes the significant accounting policies and methods used in the preparation of the consolidated financial statements. The Corporation’s critical accounting policies that are impacted by judgments, assumptions and estimates are described in Management’s Discussion and Analysis of Financial Condition and Results of Operations in the Corporation’s 2020 10-K. Since December 31, 2020, there have been no material changes in the Corporation’s accounting policies that are impacted by judgments, assumptions and estimates.

Asbestos-Related Matters

The Corporation is and has been involved in a large number of asbestos-related suits filed primarily in state courts during the past four decades. These suits principally allege personal injury resulting from exposure to asbestos‑containing products and frequently seek both actual and punitive damages. The alleged claims primarily relate to products that UCC sold in the past, alleged exposure to asbestos-containing products located on UCC’s premises, and UCC’s responsibility for asbestos suits filed against a former UCC subsidiary, Amchem Products, Inc. ("Amchem"). In many cases, plaintiffs are unable to demonstrate that they have suffered any compensable loss as a result of such exposure, or that injuries incurred in fact resulted from exposure to UCC’s products.

The table below provides information regarding asbestos-related claims pending against the Corporation and Amchem based on criteria developed by UCC and its external consultants:

Asbestos-Related Claim Activity	2021	2020
Claims unresolved at Jan 1	9,126	11,117
Claims filed	3,177	3,623
Claims settled, dismissed or otherwise resolved	(3,340)	(5,099)
Claims unresolved at Sep 30	8,963	9,641
Claimants with claims against both UCC and Amchem	(2,312)	(3,168)
Individual claimants at Sep 30	6,651	6,473

Plaintiffs' lawyers often sue numerous defendants in individual lawsuits or on behalf of numerous claimants. As a result, the damages alleged are not expressly identified as to UCC, Amchem or any other particular defendant, even when specific damages are alleged with respect to a specific disease or injury. In fact, there are no personal injury cases in which only the Corporation and/or Amchem are the sole named defendants. For these reasons and based upon the Corporation's litigation and settlement experience, the Corporation does not consider the damages alleged against it and Amchem to be a meaningful factor in its determination of any potential asbestos-related liability.

20

For additional information, see Asbestos-Related Matters in Note 6 to the Consolidated Financial Statements and Note 14 to the Consolidated Financial Statements included in the 2020 10-K, and Part II, Item 1. Legal Proceedings.

Debt Covenants and Default Provisions

The Corporation’s outstanding public debt has been issued under indentures which contain, among other provisions, covenants that the Corporation must comply with while the underlying notes are outstanding. Such covenants are typically based on the Corporation’s size and financial position and include, subject to the exceptions and qualifications contained in the indentures, obligations not to (i) allow liens on principal U.S. manufacturing facilities, (ii) enter into sale and lease-back transactions with respect to principal U.S. manufacturing facilities, or (iii) merge into or consolidate with any other entity or sell or convey all or substantially all of its assets. Failure of the Corporation to comply with any of these covenants could, after the passage of any applicable grace period, result in a default under the applicable indenture which would allow the note holders to accelerate the due date of the outstanding principal and accrued interest on the subject notes. Management believes the Corporation was in compliance with the covenants referred to above at September 30, 2021.

Dividends

On a quarterly basis, the Board reviews and determines if there will be a dividend distribution to its parent company and sole shareholder, TDCC. The Board takes into consideration the level of earnings and cash flows, among other factors, in determining the amount of the dividend distribution. In the third quarter of 2021, the Corporation declared and paid a cash dividend of $78 million to TDCC ($118 million for the first nine months of 2021). In the third quarter of 2020, the Corporation declared and paid a cash dividend of $25 million to TDCC ($187 million for the first nine months of 2020). On October 19, 2021, the Board approved a dividend to TDCC of $170 million, payable on or before December 30, 2021.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Omitted pursuant to General Instruction H of Form 10-Q.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, the Corporation carried out an evaluation, under the supervision and with the participation of the Corporation's Disclosure Committee and the Corporation's management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the Corporation's disclosure controls and procedures pursuant to paragraph (b) of Exchange Act Rules 13a-15 and 15d-15. Based upon that evaluation, the Chief Executive Officer and the Chief Financial Officer concluded that the Corporation's disclosure controls and procedures were effective.

Changes in Internal Control Over Financial Reporting

There were no changes in the Corporation's internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Exchange Act Rules 13a-15 and 15d-15 that was conducted during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Corporation's internal control over financial reporting.

21

Union Carbide Corporation and Subsidiaries

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Asbestos-Related Matters

No material developments in asbestos-related matters occurred in the first nine months of 2021. For a current status of asbestos-related matters, see Note 6 to the Consolidated Financial Statements.

ITEM 1A. RISK FACTORS

Since December 31, 2020, there have been no material changes to the Corporation's Risk Factors.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 6. EXHIBITS

EXHIBIT NO.	DESCRIPTION
23 *	Ankura Consulting Group, LLC's Consent.
31.1 *	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2 *	Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1 *	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2 *	Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema Document.
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104	Cover Page Interactive Data File. The cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

* Filed herewith

22

 Union Carbide Corporation and Subsidiaries

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

UNION CARBIDE CORPORATION

Date: October 22, 2021

/s/ RONALD C. EDMONDS

Ronald C. Edmonds
Controller and Vice President
of Controllers and Tax
The Dow Chemical Company
Authorized Representative of
Union Carbide Corporation

/s/ IGNACIO MOLINA

Ignacio Molina
Vice President, Treasurer and
Chief Financial Officer

23

EX-23

Ankura Consulting Group, LLC's Consent EXHIBIT 23

Union Carbide Corporation:

Ankura Consulting Group, LLC ("Ankura") hereby consents to the use of Ankura's name and the reference to Ankura's reports appearing in this Quarterly Report on Form 10-Q of Union Carbide Corporation for the quarter ended September 30, 2021.

Date: October 22, 2021

/s/ AMY BROCKMAN

Amy Brockman
Senior Managing Director
Ankura Consulting Group, LLC

24

EX-31.1

Union Carbide Corporation and Subsidiaries EXHIBIT 31.1

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Fernando Signorini, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Union Carbide Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: October 22, 2021

/s/ FERNANDO SIGNORINI

Fernando Signorini
President and Chief Executive Officer

25

EX-31.2

Union Carbide Corporation and Subsidiaries EXHIBIT 31.2

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Ignacio Molina, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Union Carbide Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):

a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: October 22, 2021

/s/ IGNACIO MOLINA

Ignacio Molina
Vice President, Treasurer and
Chief Financial Officer

26

EX-32.1

Union Carbide Corporation and Subsidiaries EXHIBIT 32.1

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Fernando Signorini, President and Chief Executive Officer of Union Carbide Corporation (the "Corporation"), certify that:

1.the Quarterly Report on Form 10-Q of the Corporation for the quarter ended September 30, 2021 as filed with the Securities and Exchange Commission (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Date: October 22, 2021

/s/ FERNANDO SIGNORINI

Fernando Signorini
President and Chief Executive Officer

27

EX-32.2

Union Carbide Corporation and Subsidiaries EXHIBIT 32.2

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, Ignacio Molina, Vice President, Treasurer and Chief Financial Officer of Union Carbide Corporation (the "Corporation"), certify that:

1.the Quarterly Report on Form 10-Q of the Corporation for the quarter ended September 30, 2021 as filed with the Securities and Exchange Commission (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Corporation.

Date: October 22, 2021

/s/ IGNACIO MOLINA

Ignacio Molina
Vice President, Treasurer and
Chief Financial Officer

28

XML

Cover Page	9 Months Ended
	Sep. 30, 2021 shares
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	1-1463
Entity Registrant Name	Union Carbide Corporation
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	13-1421730
Entity Address, Address Line One	7501 STATE HIGHWAY 185 NORTH
Entity Address, City or Town	SEADRIFT
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77983
City Area Code	361
Local Phone Number	553-2997
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	935.51
Entity Central Index Key	0000100790
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Title of 12(b) Security	None

XML

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue from Contract with Customer, Including Assessed Tax	$ 31	$ 25	$ 102	$ 75
Net sales to related companies	1,244	817	3,502	2,679
Net trade sales	1,275	842	3,604	2,754
Cost of sales	1,093	787	3,338	2,359
Research and development expenses	7	6	19	17
Selling, general and administrative expenses	2	2	7	6
Restructuring and asset related charges - net	1	13	1	15
Sundry income (expense) - net	(10)	45	(43)	5
Interest Income, Other	1	1	2	10
Interest expense and amortization of debt discount	5	7	19	26
Income before income taxes	158	73	179	346
Provision for income taxes	54	14	59	73
Net Income Attributable to Union Carbide Corporation	$ 104	$ 59	$ 120	$ 273

XML

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Supplemental Income Statement Elements [Abstract]
Depreciation	$ 41	$ 46	$ 124	$ 137
Capital expenditures	$ 32	$ 34	$ 85	$ 99

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income attributable to Union Carbide Corporation	$ 104	$ 59	$ 120	$ 273
Cumulative translation adjustments	1	0	1	3
Pension and other postretirement benefit plans	21	20	125	59
Total other comprehensive income	22	20	126	62
Comprehensive income attributable to Union Carbide Corporation	$ 126	$ 79	$ 246	$ 335

XML

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Cash and Cash Equivalents, at Carrying Value	$ 10	$ 11
Trade (net of allowance for doubtful receivables 2020: $-; 2019: $-)	26	26
Related companies	1,016	698
Other	35	27
Income taxes receivable	277	337
Notes receivable from related companies	965	1,660
Inventories	212	223
Other current assets	32	17
Total current assets	2,573	2,999
Investments in related companies	237	237
Other investments	22	22
Noncurrent receivables	127	124
Noncurrent receivables from related companies	69	66
Total investments	455	449
Property	7,163	7,089
Less accumulated depreciation	5,946	5,824
Net property	1,217	1,265
Intangible assets (net of accumulated amortization 2020: $92; 2019: $90)	13	16
Operating lease right-of-use assets	110	123
Deferred Tax Assets, Deferred Income	409	494
Deferred charges and other assets	39	29
Total other assets	571	662
Total Assets	4,816	5,375
Notes payable - related companies	28	33
Long-term debt due within one year	3	2
Trade	304	229
Related companies	389	409
Other	18	28
Operating lease liabilities - current	19	19
Income taxes payable	22	23
Asbestos-related liabilities - current	85	85
Accrued and other current liabilities	156	139
Total current liabilities	1,024	967
Long-Term Debt	393	391
Pension and other postretirement benefits - noncurrent	614	1,340
Asbestos-related liabilities - noncurrent	962	1,013
Operating lease liabilities - noncurrent	92	105
Other noncurrent obligations	245	201
Liabilities, Other than Long-term Debt, Noncurrent	1,913	2,659
Common stock (authorized: 1,000 shares of $0.01 par value each; issued: 935.51 shares)	0	0
Additional paid-in capital	141	141
Retained earnings	2,989	2,987
Accumulated other comprehensive loss	(1,644)	(1,770)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,486	1,358
Total Liabilities and Equity	$ 4,816	$ 5,375

XML

Consolidated Balance Sheets Parentheticals - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 0	$ 0
Finite-Lived Intangible Assets, Accumulated Amortization	$ 102	$ 97
Common stock, shares authorized	1,000	1,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares issued	935.51	935.51

XML

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Statement of Cash Flows [Abstract]
Net income attributable to Union Carbide Corporation	$ 120	$ 273
Depreciation and amortization	150	159
Provision (credit) for deferred income tax	48	3
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0	(87)
Restructuring and asset related charges - net	1	15
Net periodic pension benefit cost	(3)	41
Pension contributions	(548)	(2)
Gain (Loss) on Extinguishment of Debt	0	19
Other Noncash Income (Expense)	9	0
Accounts and notes receivable	(5)	11
Related company receivables	377	(29)
Inventories	(8)	15
Accounts payable	65	14
Related company payables	(25)	(76)
Asbestos-related payments	(51)	(49)
Increase (Decrease) in Other Operating Assets and Liabilities, Net	76	(21)
Cash provided by operating activities	206	286
Capital expenditures	(85)	(99)
Change in noncurrent receivable from related company	(3)	0
Proceeds from Sales of Business, Affiliate and Productive Assets	1	98
Cash used for investing activities	(87)	(1)
Dividends paid to parent	(118)	(187)
Changes in short-term notes payable	0	5
Repayments of Long-term Debt	(2)	(84)
Payments of Financing Costs	0	(19)
Cash used for financing activities	(120)	(285)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(1)	0
Cash and cash equivalents at beginning of period	11	11
Cash and cash equivalents at end of period	$ 10	$ 11

XML

Consolidated Statements of Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		$ 0	$ 141	$ 2,922	$ (1,665)
Net income attributable to Union Carbide Corporation	$ 273			273
Dividends, Common Stock				(187)
Other Comprehensive Income (Loss), Net of Tax	(62)				62
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		0	141	2,974	(1,623)
Net income attributable to Union Carbide Corporation	59			59
Dividends, Common Stock				(25)
Other Comprehensive Income (Loss), Net of Tax	(20)				20
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,546	0	141	3,008	(1,603)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1,358	0	141	2,987	(1,770)
Net income attributable to Union Carbide Corporation	120			120
Dividends, Common Stock				(118)
Other Comprehensive Income (Loss), Net of Tax	(126)				126
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		0	141	2,963	(1,666)
Net income attributable to Union Carbide Corporation	104			104
Dividends, Common Stock				(78)
Other Comprehensive Income (Loss), Net of Tax	(22)				22
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 1,486	$ 0	$ 141	$ 2,989	$ (1,644)

XML

CONSOLIDATED FINANCIAL STATEMENTS

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

CONSOLIDATED FINANCIAL STATEMENTS

Basis of Presentation

The unaudited interim consolidated financial statements of Union Carbide Corporation and its subsidiaries (the "Corporation" or "UCC") were prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and reflect all adjustments (including normal recurring accruals) which, in the opinion of management, are considered necessary for the fair presentation of the results for the periods presented. These statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2020 ("2020 10-K").

The Corporation is a wholly owned subsidiary of The Dow Chemical Company ("TDCC"). In accordance with the accounting guidance for earnings per share, the presentation of earnings per share is not required in financial statements of wholly owned subsidiaries.

The Corporation’s business activities comprise components of TDCC’s global operations rather than stand-alone operations. TDCC conducts its worldwide operations through global businesses. Because there are no separate reportable business segments for UCC under the accounting guidance related to segment reporting and no detailed business information is provided to a chief operating decision maker regarding the Corporation’s stand-alone operations, the Corporation’s results are reported as a single operating segment.

Intercompany transactions and balances are eliminated in consolidation. Transactions with the Corporation’s parent company, TDCC, and other subsidiaries of TDCC, have been reflected as related company transactions in the consolidated financial statements. See Note 11 for additional information.

XML

RECENT ACCOUNTING GUIDANCE

9 Months Ended

Sep. 30, 2021

Accounting Changes and Error Corrections [Abstract]

Accounting Standards Update and Change in Accounting Principle

RECENT ACCOUNTING GUIDANCE

Recently Adopted Accounting Guidance

In the first quarter of 2021, the Corporation adopted Accounting Standards Update 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes." The amendments simplify the accounting for income taxes by removing certain exceptions to the general principles of Topic 740, "Income Taxes" and improve consistent application by clarifying and amending existing guidance. The adoption of this guidance did not have a material impact on the consolidated financial statements.

XML

REVENUE FROM CONTRACT WITH CUSTOMERS

9 Months Ended

Sep. 30, 2021

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from Contract with Customer [Text Block]

REVENUE

Substantially all of the Corporation's revenue is generated by sales to TDCC. Products are sold to and purchased from TDCC at prices determined in accordance with the terms of an agreement between UCC and TDCC. The Corporation's revenue related to sales of product was approximately 99 percent and 97 percent for the three and nine months ended September 30, 2021, respectively (98 percent and 99 percent for the three and nine months ended September 30, 2020, respectively); the remaining revenue primarily related to the licensing of patents and technology. The Corporation sells its products to TDCC to simplify the customer interface process.

The Corporation’s contract liabilities include payments received in advance of performance under long-term contracts for product sales and royalties with remaining contract terms that range up to 20 years. Amounts are recognized in revenue when the performance obligations for the contract are met. The Corporation has rights to additional consideration when product is delivered to the customer. The balance of contract liabilities was $39 million at September 30, 2021 ($40 million at December 31, 2020), of which $6 million ($5 million at December 31, 2020) was included in "Accrued and other current liabilities" and $33 million ($35 million at December 31, 2020) was included in "Other noncurrent obligations" in the consolidated balance sheets.

The Corporation disaggregates its revenue from contracts with customers by type of customer (sales to related companies and sales to trade customers) as presented in the consolidated statements of income and believes this disaggregation best depicts the nature, amount, timing and uncertainty of its revenue and cash flows. Substantially all of the product sales are made to the Corporation's parent company, TDCC, and there are no unique economic factors that affect revenue recognition and cash flows associated with these product sales.

XML

INVENTORIES

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

The following table provides a breakdown of inventories:

Inventories	Sep 30, 2021		Dec 31, 2020
In millions
Finished goods	$	212	$	157
Work in process	34		23
Raw materials	46		38
Supplies	78		98
Total	$	370	$	316
Adjustment of inventories to a LIFO basis	(158)		(93)
Total inventories	$	212	$	223

A reduction of certain inventories resulted in the liquidation of related LIFO inventory layers, which increased pretax income $13 million and $16 million for the three and nine months ended September 30, 2021, respectively, and had an immaterial impact on pretax income for the three and nine months ended September 30, 2020.

XML

INTANGIBLE ASSETS

9 Months Ended

Sep. 30, 2021

Intangible Assets, Net (Excluding Goodwill) [Abstract]

INTANGIBLE ASSETS DISCLOSURE

INTANGIBLE ASSETS

The following table provides information regarding the Corporation’s intangible assets:

Intangible Assets	Sep 30, 2021						Dec 31, 2020
In millions	Gross Carrying Amount		Accum Amort		Net		Gross Carrying Amount		Accum Amort		Net
Intangible assets with finite lives:
Developed technology	$	33	$	(33)	$	—	$	33	$	(33)	$	—
Software	82		(69)		13		80		(64)		16
Total intangible assets	$	115	$	(102)	$	13	$	113	$	(97)	$	16

Total estimated amortization expense for 2021 and the five succeeding fiscal years, including amounts expected to be capitalized, is as follows:

Estimated Amortization Expense
In millions
2021	$	6
2022	$	5
2023	$	3
2024	$	2
2025	$	1
2026	$	—

XML

COMMITMENTS AND CONTINGENT LIABILITIES

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES DISCLOSURE

COMMITMENTS AND CONTINGENT LIABILITIES

A summary of the Corporation's commitments and contingent liabilities can be found in Note 14 to the Consolidated Financial Statements included in the 2020 10-K, which is incorporated by reference herein.

Environmental Matters

Accruals for environmental matters are recorded when it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, based on current law and existing technologies. At September 30, 2021, the Corporation had accrued obligations of $143 million for probable environmental remediation and restoration costs, including $19 million for the remediation of Superfund sites. These obligations are included in "Accrued and other current liabilities" and "Other noncurrent obligations" in the consolidated balance sheets. This is management’s best estimate of the costs for remediation and restoration with respect to environmental matters for which the Corporation has accrued liabilities, although it is reasonably possible that the ultimate cost with respect to these particular matters could range up to approximately two and a half times that amount. Consequently, it is reasonably possible that environmental remediation and restoration costs in excess of amounts accrued could have a material impact on the Corporation's results of operations, financial condition and cash flows. It is the opinion of the Corporation’s management that the possibility is remote that costs in excess of the range disclosed will have a material impact on the Corporation’s results of operations, financial condition and cash flows. Inherent uncertainties exist in these estimates primarily due to unknown environmental conditions, changing governmental regulations and legal standards regarding liability, and emerging remediation technologies for handling site remediation and restoration. As new or additional information becomes available and/or certain spending trends become known, management will evaluate such information in determination of the current estimate of the environmental liability. At December 31, 2020, the Corporation had accrued obligations of $133 million for probable environmental remediation and restoration costs, including $18 million for the remediation of Superfund sites.

Litigation

Asbestos-Related Matters

Each quarter, the Corporation reviews claims filed, settled and dismissed, as well as average settlement and resolution costs by disease category. The Corporation also considers additional quantitative and qualitative factors such as the nature of pending claims, trial experience of the Corporation and other asbestos defendants, current spending for defense and processing costs, significant appellate rulings and legislative developments, trends in the tort system, and their respective effects on expected future resolution costs. UCC management considers these factors in conjunction with the most recent actuarial study and determines whether a change in the estimate is warranted. Based on the Corporation's review of 2021 activity, it was determined that no adjustment to the accrual was required at September 30, 2021.

The Corporation’s total asbestos-related liability for pending and future claims and defense and processing costs was $1,047 million at September 30, 2021 ($1,098 million at December 31, 2020), and was included in “Asbestos-related liabilities - current” and “Asbestos-related liabilities - noncurrent” in the consolidated balance sheets. At September 30, 2021, approximately 24 percent of the recorded claim liability related to pending claims and approximately 76 percent related to future claims.

XML

LEASES (Notes)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Lessee, Operating And Finance Leases

LEASES

For additional information on the Corporation's leases, see Note 15 to the Consolidated Financial Statements included in the 2020 10-K.

The components of lease cost for operating and finance leases for the three and nine months ended September 30, 2021 and 2020 were as follows:

Lease Cost	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Operating lease cost	$	5	$	5	$	17	$	15
Short-term lease cost	7		6		21		17
Variable lease cost	14		2		32		6
Amortization of right-of-use assets - finance	1		—		2		1
Total lease cost	$	27	$	13	$	72	$	39

The following table provides supplemental cash flow and other information related to leases:

Other Lease Information	Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	17	$	14
Financing cash flows for finance leases	$	2	$	1
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	—	$	8
Finance leases	$	5	$	1

The following table summarizes the lease-related assets and liabilities recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020:

Lease Position	Balance Sheet Classification	Sep 30, 2021		Dec 31, 2020
In millions
Assets
Operating lease assets	Operating lease right-of-use assets	$	110	$	123
Finance lease assets	Property	19		15
Finance lease amortization	Accumulated depreciation	(10)		(8)
Total lease assets		$	119	$	130
Liabilities
Current
Operating	Operating lease liabilities - current	$	19	$	19
Finance	Long-term debt due within one year	3		2
Noncurrent
Operating	Operating lease liabilities - noncurrent	92		105
Finance	Long-term debt	6		5
Total lease liabilities		$	120	$	131

The weighted-average remaining lease term and discount rate for leases recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020 are provided below:

Lease Term and Discount Rate	Sep 30, 2021		Dec 31, 2020
Weighted-average remaining lease term
Operating leases	6.9 years		7.5 years
Finance leases	3.4 years		3.4 years
Weighted-average discount rate
Operating leases	3.29	%	3.28	%
Finance leases	2.59	%	3.62	%

The following table provides the maturities of lease liabilities at September 30, 2021:

Maturities of Lease Liabilities	Sep 30, 2021
	Operating Leases		Finance Leases
In millions
2021	$	5	$	1
2022	22		3
2023	21		3
2024	20		2
2025	18		1
2026 and thereafter	38		—
Total future undiscounted lease payments	$	124	$	10
Less: Imputed interest	13		1
Total present value of lease liabilities	$	111	$	9

XML

AOCL

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE LOSS

ACCUMULATED OTHER COMPREHENSIVE LOSS

The changes in the balances for each component of accumulated other comprehensive loss ("AOCL") for the three and nine months ended September 30, 2021 and 2020 were as follows:

Accumulated Other Comprehensive Loss	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Cumulative Translation Adjustment
Beginning balance	$	(55)	$	(53)	$	(55)	$	(56)
Unrealized gains (losses) on foreign currency translation	1		(1)		1		2
(Gains) losses reclassified from AOCL to net income 1	—		1		—		1
Other comprehensive income (loss), net of tax	1		—		1		3
Ending balance	$	(54)	$	(53)	$	(54)	$	(53)
Pension and Other Postretirement Benefits
Beginning balance	$	(1,611)	$	(1,570)	$	(1,715)	$	(1,609)
Gains (losses) arising during the period 2	—		—		87		—
Tax (expense) benefit	—		—		(20)		—
Net gains (losses) arising during the period	—		—		67		—
Amortization and recognition of net loss 3	27		26		76		77
Tax expense (benefit) 4	(6)		(6)		(18)		(18)
Net loss reclassified from AOCL to net income	21		20		58		59
Other comprehensive income (loss), net of tax	21		20		125		59
Ending balance	$	(1,590)	$	(1,550)	$	(1,590)	$	(1,550)
Total AOCL ending balance	$	(1,644)	$	(1,603)	$	(1,644)	$	(1,603)

1.Reclassified to "Sundry income (expense) - net."

2.See Note 9 for additional information.

3.These AOCL components are included in the computation of net periodic benefit cost (credit) of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 9 for additional information.

4.Reclassified to "Provision for income taxes."

XML

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

A summary of the Corporation's pension and other postretirement benefit plans can be found in Note 17 to the Consolidated Financial Statements included in the 2020 10-K.

On March 4, 2021, TDCC announced changes to the design of its U.S. tax-qualified and non-qualified pension plans, including the plans of the Corporation (the “UCC Plans”). Effective December 31, 2023 (“Effective Date”), the Corporation will freeze the pensionable compensation and credited service amounts used to calculate pension benefits for employees who participate in the UCC Plans. As a result, at the Effective Date and subject to any bargaining obligations required by law, active participants of the UCC Plans will not accrue additional benefits for future service and compensation. Additionally, contributions to U.S. tax-qualified and non-qualified defined contribution plans will be harmonized across the U.S. eligible employee population of TDCC and its consolidated subsidiaries. The new matching contribution, beginning January 1, 2022, will allow all eligible U.S. employees to receive matching contributions of up to 5 percent of their eligible compensation. In addition, beginning on January 1, 2024, all eligible U.S. employees will receive an automatic non-elective contribution of 4 percent of eligible compensation to their respective defined contribution plans.

The Corporation's funding policy is to contribute to pension plans when pension laws and/or economics either require or encourage funding. On March 4, 2021, the Corporation elected to contribute $545 million to its tax-qualified pension plan, funded by the Corporation's notes receivable from TDCC, and, as a result, increased its estimated total 2021 pension contributions to approximately $550 million, of which $548 million has been contributed through September 30, 2021.

In connection with the foregoing plan amendments, the Corporation remeasured the UCC Plans effective February 28, 2021, which resulted in a pretax actuarial gain of $87 million, reflected in other comprehensive income and inclusive of a $14 million reduction in the projected benefit obligation resulting from the plan amendments, and a pretax curtailment gain of $7 million, recognized in the first quarter of 2021.

The following table provides the components of the Corporation's net periodic benefit cost (credit) for all significant plans:

Net Periodic Benefit Cost (Credit) for All Significant Plans	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Defined Benefit Pension Plans
Service cost	$	6	$	9	$	20	$	26
Interest cost	21		28		61		84
Expected return on plan assets	(56)		(50)		(163)		(150)
Amortization of prior service credit	(1)		—		(1)		—
Amortization of net loss	29		27		87		81
Curtailment gain	—		—		(7)		—
Net periodic benefit cost (credit)	$	(1)	$	14	$	(3)	$	41
Other Postretirement Benefit Plan
Service cost	$	1	$	—	$	1	$	1
Interest cost	—		1		2		4
Amortization of net gain	(1)		(1)		(3)		(4)
Net periodic benefit cost	$	—	$	—	$	—	$	1

Net periodic benefit cost (credit), other than the service cost component, is included in "Sundry income (expense) - net" in the consolidated statements of income.

XML

Fair Value Measures and Disclosures

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments Disclosure [Text Block]

FAIR VALUE MEASUREMENTS

The Corporation's financial instruments are classified as Level 2 measurements. For assets and liabilities classified as Level 2 measurements, where the security is frequently traded in less active markets, fair value is based on the closing price at the end of the period; where the security is less frequently traded, fair value is based on the price a dealer would pay for the security or similar securities, adjusted for any terms specific to that asset or liability, or by using observable market data points of similar, more liquid securities to imply the price. Market inputs are obtained from well-established and recognized vendors of market data and subjected to tolerance and quality checks.

The following table summarizes the fair value of the Corporation's financial instruments at September 30, 2021 and December 31, 2020:

Fair Value of Financial Instruments	Sep 30, 2021								Dec 31, 2020
In millions	Cost		Gain		Loss		Fair Value		Cost		Gain		Loss		Fair Value
Cash equivalents 1	$	10	$	—	$	—	$	10	$	10	$	—	$	—	$	10
Long-term debt including debt due within one year	$	(396)	$	—	$	(145)	$	(541)	$	(393)	$	—	$	(120)	$	(513)

1.Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value.

Cost approximates fair value for all other financial instruments.

XML

RELATED PARTY TRANSACTIONS

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

RELATED PARTY TRANSACTIONS DISCLOSURE

RELATED PARTY TRANSACTIONS

A summary of the Corporation's related party transactions can be found in Note 19 to the Consolidated Financial Statements included in the 2020 10-K.

Product and Services Agreements

The following table summarizes UCC’s transactions with TDCC and a TDCC subsidiary related to product and services agreements for the three and nine months ended September 30, 2021 and 2020:

Product and Services Agreements Transactions	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020		Income Statement Classification
In millions
TDCC Subsidiary:
Commodity and raw materials purchases 1	$	382	$	270	$	1,360	$	707	Cost of sales
Commission expense	$	4	$	5	$	16	$	16	Sundry income (expense) - net
TDCC:
General administrative and overhead type services and service fee 2	$	12	$	7	$	47	$	23	Sundry income (expense) - net
Activity-based costs	$	18	$	19	$	55	$	66	Cost of sales

1.Period-end balances on hand are included in inventory. The increase in purchase costs was primarily due to higher feedstock and energy costs, which includes the impact of Winter Storm Uri in the first quarter of 2021.

2.The increase in services and fees resulted from TDCC's periodic review of the actual cost of services provided to UCC in accordance with related agreements.

Dividends

The following table summarizes cash dividends declared and paid to TDCC for the three and nine months ended September 30, 2021 and 2020:

Cash Dividends Declared and Paid	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
In millions
Cash dividends declared and paid	$	78	$	25	$	118	$	187

XML

INVENTORIES (Tables)

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

The following table provides a breakdown of inventories:

Inventories	Sep 30, 2021		Dec 31, 2020
In millions
Finished goods	$	212	$	157
Work in process	34		23
Raw materials	46		38
Supplies	78		98
Total	$	370	$	316
Adjustment of inventories to a LIFO basis	(158)		(93)
Total inventories	$	212	$	223

XML

INTANGIBLE ASSETS (Tables)

9 Months Ended

Sep. 30, 2021

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Intangible Assets

The following table provides information regarding the Corporation’s intangible assets:

Intangible Assets	Sep 30, 2021						Dec 31, 2020
In millions	Gross Carrying Amount		Accum Amort		Net		Gross Carrying Amount		Accum Amort		Net
Intangible assets with finite lives:
Developed technology	$	33	$	(33)	$	—	$	33	$	(33)	$	—
Software	82		(69)		13		80		(64)		16
Total intangible assets	$	115	$	(102)	$	13	$	113	$	(97)	$	16

Schedule of Expected Amortization Expense [Table Text Block]

Total estimated amortization expense for 2021 and the five succeeding fiscal years, including amounts expected to be capitalized, is as follows:

Estimated Amortization Expense
In millions
2021	$	6
2022	$	5
2023	$	3
2024	$	2
2025	$	1
2026	$	—

XML

LEASES (Tables)

9 Months Ended

Sep. 30, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

The components of lease cost for operating and finance leases for the three and nine months ended September 30, 2021 and 2020 were as follows:

Lease Cost	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Operating lease cost	$	5	$	5	$	17	$	15
Short-term lease cost	7		6		21		17
Variable lease cost	14		2		32		6
Amortization of right-of-use assets - finance	1		—		2		1
Total lease cost	$	27	$	13	$	72	$	39

Schedule of Supplemental Cash Flow Information Related to Leases [Table Text Block]

The following table provides supplemental cash flow and other information related to leases:

Other Lease Information	Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows for operating leases	$	17	$	14
Financing cash flows for finance leases	$	2	$	1
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$	—	$	8
Finance leases	$	5	$	1

Schedule of Lease Assets and Liabilities [Table Text Block]

The following table summarizes the lease-related assets and liabilities recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020:

Lease Position	Balance Sheet Classification	Sep 30, 2021		Dec 31, 2020
In millions
Assets
Operating lease assets	Operating lease right-of-use assets	$	110	$	123
Finance lease assets	Property	19		15
Finance lease amortization	Accumulated depreciation	(10)		(8)
Total lease assets		$	119	$	130
Liabilities
Current
Operating	Operating lease liabilities - current	$	19	$	19
Finance	Long-term debt due within one year	3		2
Noncurrent
Operating	Operating lease liabilities - noncurrent	92		105
Finance	Long-term debt	6		5
Total lease liabilities		$	120	$	131

Lease Terms and Discount Rates [Table Text Block]

The weighted-average remaining lease term and discount rate for leases recorded in the consolidated balance sheets at September 30, 2021 and December 31, 2020 are provided below:

Lease Term and Discount Rate	Sep 30, 2021		Dec 31, 2020
Weighted-average remaining lease term
Operating leases	6.9 years		7.5 years
Finance leases	3.4 years		3.4 years
Weighted-average discount rate
Operating leases	3.29	%	3.28	%
Finance leases	2.59	%	3.62	%

Maturities of Lease Liabilities [Table Text Block]

The following table provides the maturities of lease liabilities at September 30, 2021:

Maturities of Lease Liabilities	Sep 30, 2021
	Operating Leases		Finance Leases
In millions
2021	$	5	$	1
2022	22		3
2023	21		3
2024	20		2
2025	18		1
2026 and thereafter	38		—
Total future undiscounted lease payments	$	124	$	10
Less: Imputed interest	13		1
Total present value of lease liabilities	$	111	$	9

XML

AOCL (Tables)

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Schedule of Components of Other Comprehensive Income (Loss)

The changes in the balances for each component of accumulated other comprehensive loss ("AOCL") for the three and nine months ended September 30, 2021 and 2020 were as follows:

Accumulated Other Comprehensive Loss	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Cumulative Translation Adjustment
Beginning balance	$	(55)	$	(53)	$	(55)	$	(56)
Unrealized gains (losses) on foreign currency translation	1		(1)		1		2
(Gains) losses reclassified from AOCL to net income 1	—		1		—		1
Other comprehensive income (loss), net of tax	1		—		1		3
Ending balance	$	(54)	$	(53)	$	(54)	$	(53)
Pension and Other Postretirement Benefits
Beginning balance	$	(1,611)	$	(1,570)	$	(1,715)	$	(1,609)
Gains (losses) arising during the period 2	—		—		87		—
Tax (expense) benefit	—		—		(20)		—
Net gains (losses) arising during the period	—		—		67		—
Amortization and recognition of net loss 3	27		26		76		77
Tax expense (benefit) 4	(6)		(6)		(18)		(18)
Net loss reclassified from AOCL to net income	21		20		58		59
Other comprehensive income (loss), net of tax	21		20		125		59
Ending balance	$	(1,590)	$	(1,550)	$	(1,590)	$	(1,550)
Total AOCL ending balance	$	(1,644)	$	(1,603)	$	(1,644)	$	(1,603)

1.Reclassified to "Sundry income (expense) - net."

2.See Note 9 for additional information.

3.These AOCL components are included in the computation of net periodic benefit cost (credit) of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 9 for additional information.

4.Reclassified to "Provision for income taxes."

XML

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

9 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Net Periodic Benefit Cost for All Significant Plans

The following table provides the components of the Corporation's net periodic benefit cost (credit) for all significant plans:

Net Periodic Benefit Cost (Credit) for All Significant Plans	Three Months Ended				Nine Months Ended
In millions	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
Defined Benefit Pension Plans
Service cost	$	6	$	9	$	20	$	26
Interest cost	21		28		61		84
Expected return on plan assets	(56)		(50)		(163)		(150)
Amortization of prior service credit	(1)		—		(1)		—
Amortization of net loss	29		27		87		81
Curtailment gain	—		—		(7)		—
Net periodic benefit cost (credit)	$	(1)	$	14	$	(3)	$	41
Other Postretirement Benefit Plan
Service cost	$	1	$	—	$	1	$	1
Interest cost	—		1		2		4
Amortization of net gain	(1)		(1)		(3)		(4)
Net periodic benefit cost	$	—	$	—	$	—	$	1

XML

Fair Value Measures and Disclosures (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

The following table summarizes the fair value of the Corporation's financial instruments at September 30, 2021 and December 31, 2020:

Fair Value of Financial Instruments	Sep 30, 2021								Dec 31, 2020
In millions	Cost		Gain		Loss		Fair Value		Cost		Gain		Loss		Fair Value
Cash equivalents 1	$	10	$	—	$	—	$	10	$	10	$	—	$	—	$	10
Long-term debt including debt due within one year	$	(396)	$	—	$	(145)	$	(541)	$	(393)	$	—	$	(120)	$	(513)

1.Money market fund is included in "Cash and cash equivalents" in the consolidated balance sheets and held at amortized cost, which approximates fair value.

XML

Related Party Disclosures (Tables)

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

The following table summarizes UCC’s transactions with TDCC and a TDCC subsidiary related to product and services agreements for the three and nine months ended September 30, 2021 and 2020:

Product and Services Agreements Transactions	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020		Income Statement Classification
In millions
TDCC Subsidiary:
Commodity and raw materials purchases 1	$	382	$	270	$	1,360	$	707	Cost of sales
Commission expense	$	4	$	5	$	16	$	16	Sundry income (expense) - net
TDCC:
General administrative and overhead type services and service fee 2	$	12	$	7	$	47	$	23	Sundry income (expense) - net
Activity-based costs	$	18	$	19	$	55	$	66	Cost of sales

1.Period-end balances on hand are included in inventory. The increase in purchase costs was primarily due to higher feedstock and energy costs, which includes the impact of Winter Storm Uri in the first quarter of 2021.

2.The increase in services and fees resulted from TDCC's periodic review of the actual cost of services provided to UCC in accordance with related agreements.

Dividends Declared

The following table summarizes cash dividends declared and paid to TDCC for the three and nine months ended September 30, 2021 and 2020:

Cash Dividends Declared and Paid	Three Months Ended				Nine Months Ended
	Sep 30, 2021		Sep 30, 2020		Sep 30, 2021		Sep 30, 2020
In millions
Cash dividends declared and paid	$	78	$	25	$	118	$	187

XML

Revenue from Contract with Customer (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Revenue from External Customer [Line Items]
Revenue, Percentage from Products and Services Transferred to Customers	99.00%	98.00%	97.00%	99.00%
Contract with Customer, Liability	$ 39		$ 39		$ 40
Accrued Liabilities [Member]
Revenue from External Customer [Line Items]
Contract with Customer, Liability, Current	6		6		5
Other Noncurrent Liabilities [Member]
Revenue from External Customer [Line Items]
Contract with Customer, Liability, Noncurrent	$ 33		$ 33		$ 35
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-10-01
Revenue from External Customer [Line Items]
Revenue, Performance Obligation, Description of Timing	20 years		20 years

XML

INVENTORIES (Schedule of Inventories) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Inventory Disclosure [Abstract]
Finished goods	$ 212		$ 212		$ 157
Work in process	34		34		23
Raw materials	46		46		38
Supplies	78		78		98
Inventory, Gross	370		370		316
Inventory Adjustments	(158)		(158)		(93)
Total inventories	212		212		$ 223
Effect of LIFO Inventory Liquidation on Income	$ 13	$ 0	$ 16	$ 0

XML

INTANGIBLE ASSETS (Schedule of Amortization Expense of Intangible Assets) (Table and Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets, Gross	$ 115	$ 113
Finite-Lived Intangible Assets, Accumulated Amortization	(102)	(97)
Finite-Lived Intangible Assets, Net	13	16
Developed Technology Rights
Finite-Lived Intangible Assets, Gross	33	33
Finite-Lived Intangible Assets, Accumulated Amortization	(33)	(33)
Finite-Lived Intangible Assets, Net	0	0
Software [Member]
Finite-Lived Intangible Assets, Gross	82	80
Finite-Lived Intangible Assets, Accumulated Amortization	(69)	(64)
Finite-Lived Intangible Assets, Net	$ 13	$ 16

XML

INTANGIBLE ASSETS (Schedule of Future Amortization Expense of Intangible Assets) (Details) $ in Millions	Sep. 30, 2021 USD ($)
Finite-Lived Intangible Asset, Expected Amortization, Year One	$ 6
Finite-Lived Intangible Asset, Expected Amortization, Year Two	5
Finite-Lived Intangible Asset, Expected Amortization, Year Three	3
Finite-Lived Intangible Asset, Expected Amortization, Year Four	2
Finite-Lived Intangible Asset, Expected Amortization, Year Five	1
Finite-Lived Intangible Asset, Expected Amortization, after Year Five	$ 0

XML

COMMITMENTS AND CONTINGENT LIABILITIES (Environmental Matters) (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies	$ 143	$ 133
Super Fund Sites [Member]
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies	$ 19	$ 18

XML

COMMITMENTS AND CONTINGENT LIABILITIES (Asbestos-Related Matters of Union Carbide Corporation) (Table and Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Liability for Asbestos and Environmental Claims, Gross	$ 1,047	$ 1,098
Percentage of recorded asbestos liability related to pending claims	24.00%
Percentage of recorded asbestos liability related to future claims	76.00%

XML

LEASES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Operating Lease Cost	$ 5	$ 5	$ 17	$ 15
Short-term Lease Cost	7	6	21	17
Variable Lease, Cost	14	2	32	6
Finance Lease, Right-of-Use Asset, Amortization	1	0	2	1
Lease, Cost	27	$ 13	72	39
Operating cash flows for operating leases			17	14
Finance Lease, Principal Payments			2	1
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			0	8
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability			5	$ 1
Operating lease right-of-use assets	110		110		$ 123
Finance Lease, Right-of-Use Asset	19		19		15
Accumulated depreciation	(5,946)		(5,946)		(5,824)
Total Lease Assets	119		119		130
Operating lease liabilities - current	19		19		19
Finance Lease, Liability, Current	3		3		2
Operating lease liabilities - noncurrent	92		92		105
Finance Lease, Liability, Noncurrent	6		6		5
Total Lease Liabilities	$ 120		$ 120		$ 131
Operating Lease, Weighted Average Remaining Lease Term	6 years 10 months 24 days		6 years 10 months 24 days		7 years 6 months
Finance Lease, Weighted Average Remaining Lease Term	3 years 4 months 24 days		3 years 4 months 24 days		3 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	3.29%		3.29%		3.28%
Finance Lease, Weighted Average Discount Rate, Percent	2.59%		2.59%		3.62%
Lessee, Operating Lease, Liability, Payments, Remainder of 2020	$ 5		$ 5
Finance Lease, Liability, Payments, Due 2020	1		1
Lessee, Operating Lease, Liability, Payments, Due 2021	22		22
Finance Lease, Liability, Payments, Due 2021	3		3
Lessee, Operating Lease, Liability, Payments, Due 2022	21		21
Finance Lease, Liability, Payments, Due 2022	3		3
Lessee, Operating Lease, Liability, Payments, Due 2023	20		20
Finance Lease, Liability, Payments, Due 2023	2		2
Lessee, Operating Lease, Liability, Payments, Due 2024	18		18
Finance Lease, Liability, Payments, Due 2024	1		1
Lessee, Operating Lease, Liability, Payments, Due 2025 and thereafter	38		38
Finance Lease, Liability, Payments, Due 2025 and thereafter	0		0
Lessee, Operating Lease, Liability, Payments, Due	124		124
Finance Lease, Liability, Payment, Due	10		10
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	13		13
Finance Lease, Liability, Undiscounted Excess Amount	1		1
Operating Lease, Liability	111		111
Finance Lease, Liability	9		9
finance leases [Member]
Accumulated depreciation	$ (10)		$ (10)		$ (8)

XML

AOCL (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (1,644)	$ (1,603)	$ (1,644)	$ (1,603)		$ (1,770)
Other Comprehensive Income (Loss), Net of Tax	(22)	(20)	(126)	(62)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(54)	(53)	(54)	(53)	$ (55)	(55)	$ (53)	$ (56)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1	(1)	1	2
Other Comprehensive Income (Loss), Net of Tax	1	0	1	3
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	1	0	1
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(1,590)	(1,550)	(1,590)	(1,550)	$ (1,611)	$ (1,715)	$ (1,570)	$ (1,609)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	67	0
Other Comprehensive Income (Loss), before Reclassifications, before Tax	0	0	87	0
Other Comprehensive Income (Loss) before Reclassifications, Tax	0	0	(20)	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	27	26	76	77
Reclassification from AOCI, Current Period, Tax	(6)	(6)	(18)	(18)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	21	20	58	59
Other Comprehensive Income (Loss), Net of Tax	$ 21	$ 20	$ 125	$ 59

XML

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			5.00%
Qualified Plan
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 545
Automatic Non-Elective Contribution
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay			4.00%
Defined Benefit Pension Plans [Member]
Defined Benefit Plan, Plan Assets, Contributions by Employer			$ 548
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year	$ 550		550
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)			87
Increase (Decrease) in Obligation, Pension Benefits			(14)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	$ 0	7	$ 0
Service cost	6	9	20	26
Interest cost	21	28	61	84
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	56	50	163	150
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(1)	0	(1)	0
Defined Benefit Plan, Amortization of Gain (Loss)	(29)	(27)	(87)	(81)
Net periodic benefit cost	(1)	14	(3)	41
Other Postretirement Benefits [Member]
Service cost	1	0	1	1
Interest cost	0	1	2	4
Defined Benefit Plan, Amortization of Gain (Loss)	1	1	3	4
Net periodic benefit cost	$ 0	$ 0	$ 0	$ 1

XML

Fair Value Measures and Disclosures (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Long-term Debt	$ (396)	$ (393)
Long-term Debt, Fair Value	(541)	(513)
Long-term Debt [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial Instruments Gross Unrealized Gains	0	0
Financial Instruments Gross Unrealized Loss	(145)	(120)
Money Market Funds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Cash Equivalents, at Carrying Value	10	10
Financial Instruments Gross Unrealized Gains	0	0
Financial Instruments Gross Unrealized Loss	0	0
Cash Equivalents, Fair Value	$ 10	$ 10

XML

RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Related Party Transaction [Line Items]
Payments of Dividends			$ 118	$ 187
The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Payments of Dividends	$ 78	$ 25	118	187
Commodity And Raw Material Purchases | Cost of Sales [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	382	270	1,360	707
Net Commission Expense | Sundry Income (Expense), Net [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	4	5	16	16
General and Administrative Expense | Sundry Income (Expense), Net [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	12	7	47	23
Activity Based Costs | Cost of Sales [Member] | The Dow Chemical Company [Member]
Related Party Transaction [Line Items]
Related Party Transaction, Expenses from Transactions with Related Party	$ 18	$ 19	$ 55	$ 66