Owens Corning (OC) 10-K 14 Feb 24 2023 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2023	Feb. 09, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	1-33100
Entity Registrant Name	Owens Corning
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	43-2109021
Entity Address, Address Line One	One Owens Corning Parkway,
Entity Address, City or Town	Toledo,
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43659
City Area Code	419
Local Phone Number	248-8000
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	OC
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 11,723,204,804
Entity Common Stock, Shares Outstanding		87,006,138
Documents Incorporated by Reference	Portions of Owens Corning’s proxy statement to be delivered to stockholders in connection with the Annual Meeting of Stockholders to be held on or about April 18, 2024 (the “2024 Proxy Statement”) are incorporated by reference into Part III hereof
Entity Central Index Key	0001370946
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2023
Audit Information [Abstract]
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Toledo, Ohio

CONSOLIDATED STATEMENTS OF EARN

CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
NET SALES	$ 9,677	$ 9,761	$ 8,498
COST OF SALES	6,994	7,145	6,281
Gross margin	2,683	2,616	2,217
OPERATING EXPENSES
Marketing and administrative expenses	831	803	757
Science and technology expenses	123	106	91
Gain on sale of site	(189)	0	0
Gain on equity method investment	0	(130)	0
Other expense (income), net	106	123	(69)
Total operating expenses	871	902	779
OPERATING INCOME	1,812	1,714	1,438
Non-operating expense (income), net	145	(9)	(10)
EARNINGS BEFORE INTEREST AND TAXES	1,667	1,723	1,448
Interest expense, net	76	109	126
Loss on extinguishment of debt	0	0	9
EARNINGS BEFORE TAXES	1,591	1,614	1,313
Income tax expense	401	373	319
Equity in net earnings of affiliates	3	0	1
NET EARNINGS	1,193	1,241	995
Net loss attributable to non-redeemable and redeemable noncontrolling interests	(3)	0	0
NET EARNINGS ATTRIBUTABLE TO OWENS CORNING	$ 1,196	$ 1,241	$ 995
EARNINGS PER COMMON SHARE ATTRIBUTABLE TO OWENS CORNING COMMON STOCKHOLDERS
Basic (dollars per share)	$ 13.27	$ 12.85	$ 9.61
Diluted (dollars per share)	$ 13.14	$ 12.70	$ 9.54
WEIGHTED AVERAGE COMMON SHARES
Basic (in shares)	90.1	96.6	103.5
Diluted (in shares)	91	97.7	104.3

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 1,193	$ 1,241	$ 995
Currency translation adjustment (net of tax of $(2), $(1) and $(3), for the periods ended December 31, 2023, 2022 and 2021, respectively)	61	(104)	(59)
Pension and other postretirement adjustment (net of tax of $(36), $(3) and $(18), for the periods ended December 31, 2023, 2022 and 2021, respectively)	105	17	54
Hedging adjustment (net of tax of $(4), $6 and $(4), for the periods ended December 31, 2023, 2022 and 2021, respectively)	11	(16)	12
Other comprehensive income (loss), net of tax	177	(103)	7
TOTAL COMPREHENSIVE EARNINGS	1,370	1,138	1,002
Comprehensive loss attributable to non-redeemable and redeemable noncontrolling interests	(4)	(3)	0
TOTAL COMPREHENSIVE EARNINGS	$ 1,374	$ 1,141	$ 1,002

CONSOLIDATED STATEMENTS OF CO_2

CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Currency translation tax	$ (2)	$ (1)	$ (3)
Pension and other postretirement adjustment	(36)	(3)	(18)
Hedging tax	$ (4)	$ 6	$ (4)

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
CURRENT ASSETS
Cash and cash equivalents		$ 1,615	$ 1,099
Receivables, Net, Current		987	961
Inventories		1,198	1,334
Assets held for sale		0	45
Other current assets		117	117
Total current assets		3,917	3,556
Property, plant and equipment, net		3,841	3,729
Operating lease right-of-use assets		222	204
Goodwill		1,392	1,383
Intangible assets, net		1,528	1,602
Deferred income taxes		24	16
Other non-current assets		313	262
TOTAL ASSETS		11,237	10,752
CURRENT LIABILITIES
Accounts payable		1,216	1,345
Current operating lease liabilities		62	52
Long-term debt – current portion		431	28
Other current liabilities		615	679
Total current liabilities		2,324	2,104
Long-term debt, net of current portion		2,615	2,992
Pension plan liability		69	78
Other employee benefits liability		112	118
Non-current operating lease liabilities		165	152
Deferred income taxes		427	388
Other liabilities		315	299
Total liabilities		6,027	6,131
Redeemable noncontrolling interest		25	25
OWENS CORNING STOCKHOLDERS’ EQUITY
Preferred stock, par value $0.01 per share	[1]	0	0
Common stock, par value $0.01 per share	[2]	1	1
Additional paid in capital		4,166	4,139
Accumulated earnings		4,794	3,794
Accumulated other comprehensive deficit		(503)	(681)
Cost of common stock in treasury	[3]	(3,292)	(2,678)
Total Owens Corning stockholders’ equity		5,166	4,575
Noncontrolling interests		19	21
Total equity		5,185	4,596
TOTAL LIABILITIES AND EQUITY		$ 11,237	$ 10,752
[1]10 shares authorized; none issued or outstanding at December 31, 2023 and December 31, 2022[2]400 shares authorized; 135.5 issued and 87.2 outstanding at December 31, 2023; 135.5 issued and 91.9 outstanding at December 31, 2022[3]48.3 shares at December 31, 2023 and 43.6 shares at December 31, 2022

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Receivables, less allowance	$ 11	$ 11
Preferred Stock, par value (dollars per share)	$ 0.01	$ 0.01
Common stock, par value (dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized (shares)	10,000,000	10,000,000
Preferred stock issued (shares)	0	0
Preferred stock outstanding (shares)	0	0
Common stock authorized (shares)	400,000,000	400,000,000
Common stock issued (shares)	135,500,000	135,500,000
Common stock outstanding (shares)	87,200,000	91,900,000
Treasury stock (shares)	48,300,000	43,600,000

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions		Total		Common Stock Outstanding	Treasury Stock	APIC	[1]	Accumulated Earnings	AOCI	[2]	NCI	[3]
Beginning balance (in shares) at Dec. 31, 2020				105.6	29.9
Beginning balance at Dec. 31, 2020		$ 3,941		$ 1	$ (1,400)	$ 4,059		$ 1,829	$ (588)		$ 40
Increase Decrease In Stockholders Equity [Roll Forward]
Net earnings (loss) attributable to Owens Corning		995						995
Currency translation adjustment		(60)							(59)		(1)
Pension and other postretirement adjustment (net of tax)		54							54
Deferred gain (loss) on hedging transactions (net of tax)		12							12
Issuance of common stock under share-based payment plans (in shares)				1	(1)
Issuance of common stock under share-based payment plans		31			$ 48	(17)
Purchase of treasury stock (in shares)				(6.2)	6.2
Purchases of treasury stock		(570)			$ (570)
Stock-based compensation expense		50				50
Dividends declared (d)	[4]	(118)						(118)
Ending balance (in shares) at Dec. 31, 2021				100.4	35.1
Ending balance at Dec. 31, 2021		4,335	[4]	$ 1	$ (1,922)	4,092		2,706	(581)		39
Increase Decrease In Stockholders Equity [Roll Forward]
Net earnings (loss) attributable to Owens Corning		1,241						1,241
Net earnings (loss) attributable to non-redeemable noncontrolling interests		2									2
Redeemable noncontrolling interest adjustment to redemption value		2				2
Currency translation adjustment		(104)							(101)		(3)
Pension and other postretirement adjustment (net of tax)		17							17
Deferred gain (loss) on hedging transactions (net of tax)		(16)							(16)
Purchases of noncontrolling interest		(9)				8					(17)
Issuance of common stock under share-based payment plans (in shares)				0.7	(0.7)
Issuance of common stock under share-based payment plans		29			$ 39	(10)
Purchase of treasury stock (in shares)				(9.2)	9.2
Purchases of treasury stock		(795)			$ (795)
Stock-based compensation expense		51				51
Dividends declared (d)	[4]	(153)						(153)
Ending balance (in shares) at Dec. 31, 2022				91.9	43.6
Ending balance at Dec. 31, 2022		4,596		$ 1	$ (2,678)	4,139		3,794	(681)		21
Increase Decrease In Stockholders Equity [Roll Forward]
Net earnings (loss) attributable to Owens Corning		1,196						1,196
Net earnings (loss) attributable to non-redeemable noncontrolling interests		1									1
Redeemable noncontrolling interest adjustment to redemption value		(2)				(2)
Currency translation adjustment		61							62		(1)
Pension and other postretirement adjustment (net of tax)		105							105
Deferred gain (loss) on hedging transactions (net of tax)		11							11
Issuance of common stock under share-based payment plans (in shares)				1.1	(1.1)
Issuance of common stock under share-based payment plans		26			$ 48	(22)
Purchase of treasury stock (in shares)				(5.8)	5.8
Purchases of treasury stock		(662)			$ (662)
Stock-based compensation expense		51				51
Dividends declared (d)	[4]	(196)						(196)
Dividends declared (d)		(2)									(2)	[4]
Ending balance (in shares) at Dec. 31, 2023				87.2	48.3
Ending balance at Dec. 31, 2023		$ 5,185		$ 1	$ (3,292)	$ 4,166		$ 4,794	$ (503)		$ 19
[1] Additional Paid in Capital (APIC) Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”) Noncontrolling Interest (“NCI”) Dividend declarations of $2.16 per share as of December 31, 2023, $1.57 per share as of December 31, 2022, and $1.13 per share as of December 31, 2021.

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
NET CASH FLOW PROVIDED BY OPERATING ACTIVITIES
NET EARNINGS	$ 1,193	$ 1,241	$ 995
Adjustments to reconcile net earnings to cash provided by operating activities
Depreciation and amortization	609	531	502
Deferred income taxes	26	37	44
Pension annuity settlement charge	145	0	0
Stock-based compensation expense	51	51	50
Intangible assets impairment charge	0	96	0
Loss on extinguishment of debt	0	0	9
Gains on sale of certain precious metals	(2)	(18)	(53)
Gain on equity method investment	0	(130)	0
Gain on sale of site	(189)	0	0
Net loss on sale of assets or affiliates	0	36	0
Other adjustments to reconcile net earnings to cash provided by operating activities	(44)	4	11
Changes in receivables, net	(26)	(14)	(28)
Changes in inventories	148	(287)	(227)
Changes in accounts payable and accrued liabilities	(158)	363	302
Changes in other operating assets and liabilities	3	(81)	(65)
Pension fund contributions	(18)	(8)	(21)
Payments for other employee benefits liabilities	(11)	(11)	(13)
Other	(8)	(50)	(3)
Net cash flow provided by operating activities	1,719	1,760	1,503
NET CASH FLOW USED BY INVESTING ACTIVITIES
Cash paid for property, plant and equipment	526	446	416
Derivative settlements	0	44	(4)
Proceeds from the sale of assets or affiliates	194	212	89
Investment in subsidiaries and affiliates, net of cash acquired	(6)	(417)	(42)
Other	18	16	4
Net cash flow used by investing activities	(356)	(623)	(377)
NET CASH FLOW USED BY FINANCING ACTIVITIES
Payments on long-term debt	0	0	(193)
Purchase of noncontrolling interest	0	(9)	0
Dividends paid	(188)	(136)	(108)
Purchases of treasury stock	(657)	(795)	(570)
Finance lease payments	(33)	(30)	(23)
Other	1	(4)	13
Net cash flow used by financing activities	(877)	(974)	(881)
Effect of exchange rate changes on cash	30	(22)	(3)
Net increase in cash, cash equivalents and restricted cash	516	141	242
Cash, cash equivalents and restricted cash at beginning of period	1,107	966	724
Cash, cash equivalents and restricted cash at end of period	1,623	1,107	966
Cash paid during the year for income taxes	428	319	244
Cash paid during the year for interest	$ 135	$ 123	$ 133

CONSOLIDATED STATEMENTS OF ST_2

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Dividend (dollars per share)	$ 2.16	$ 1.57	$ 1.13

BUSINESS AND SUMMARY OF SIGNIFI

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Description of Business Owens Corning, a Delaware corporation, is a global building and construction materials leader committed to building a sustainable future through material innovation. The Company operates within three segments: Roofing, Insulation and Composites. Through these lines of business, Owens Corning manufactures and sells products worldwide. The Company maintains leading market positions in many of its major product categories. General On February 1, 2024, the Board of Directors declared a quarterly dividend of $0.60 per common share payable on April 4, 2024 to shareholders of record as of March 4, 2024. Basis of Presentation Unless the context requires otherwise, the terms “Owens Corning,” “Company,” “we” and “our” in these notes refer to Owens Corning and its subsidiaries. The accompanying Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States. Principles of Consolidation The Consolidated Financial Statements of the Company include the accounts of majority-owned subsidiaries. Intercompany accounts and transactions are eliminated. Reclassifications Certain reclassifications have been made to the 2022 and 2021 Consolidated Financial Statements and Notes to the Consolidated Financial Statements to conform to the classifications used in 2023. Use of Estimates and Assumptions The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates. Revenue Recognition We recognize revenue as the amount of consideration that we expect to receive in exchange for transferring promised goods or services to customers. We do not adjust the transaction price for the effects of a significant financing component, as the time period between control transfer of goods and services and expected payment is one year or less. At the time of sale, we estimate provisions for different forms of variable consideration (discounts, rebates, returns and other refund liabilities) based on historical experience, current conditions and contractual obligations, as applicable. The estimated transaction price is typically not subject to significant reversals. We adjust these estimates when the most likely amount of consideration we expect to receive changes, although these changes are typically minor. Sales, value-added and other similar taxes that we collect are excluded from revenue. Many of our customer volume commitments are short-term and our performance obligations are generally limited to single purchase orders. Substantially all of our revenue is recognized at a point-in-time when control of goods transfers to the customer. Control transfer typically occurs when goods are shipped from our facilities or at other predetermined control transfer points (for instance, destination terms or consignment arrangements). Revenue Recognition (continued) We typically do not satisfy performance obligations without obtaining an unconditional right to payment from customers and, therefore, do not carry contract asset balances on the Consolidated Balance Sheets. Contract liability balances are recorded separately from receivables on the Consolidated Balance Sheets in either Total current liabilities or Other liabilities, depending on the timing of performance obligation satisfaction. We sell separately-priced warranties that extend certain product and workmanship coverages beyond our standard product warranty, which is described in Note 11. The up-front consideration on extended warranty contracts is deferred and recognized as revenue over time, based on the respective coverage period, ranging from 16 to 20 years. On an annual basis, we expect to recognize approximately $7 million of revenue associated with these extended warranty contracts. Additionally, in certain limited cases, we receive consideration before goods or services are transferred to the customer. These customer down payments and deposits are deferred, and typically recognized as revenue in the following quarters when we satisfy the related performance obligations. As of December 31, 2023, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $101 million. As of December 31, 2022, our contract liability balances totaled $89 million, of which $18 million was recognized as revenue throughout 2023. As of December 31, 2021, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $76 million, of which $17 million was recognized as revenue throughout 2022. As of December 31, 2020, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $66 million, of which $17 million was recognized as revenue throughout 2021. As a practical expedient, we recognize incremental costs of obtaining a contract, if any, as an expense when incurred if the amortization period of the asset would have been one year or less. We do not have any costs to obtain or fulfill a contract that are capitalized under Accounting Standards Codification ( “ ASC ” ) 606. Cost of Sales Cost of sales includes material, labor, energy and manufacturing overhead costs, including depreciation and amortization expense associated with the manufacture and distribution of the Company’s products. Provisions for warranties are provided in the same period that the related sales are recorded and are based on historical experience, current conditions and contractual obligations, as applicable. Distribution costs include inbound freight costs; purchasing and receiving costs; inspection costs; warehousing costs; shipping and handling costs, which include costs incurred relating to preparing, packaging, and shipping products to customers; and other costs of the Company’s distribution network. We account for shipping and handling activities that occur after control of the related good transfers as fulfillment activities instead of performance obligations. All shipping and handling costs billed to the customer are included as net sales in the Consolidated Statements of Earnings. Marketing and Advertising Expenses Marketing and advertising expenses are included in Marketing and administrative expenses. These costs include advertising and marketing communications, which are expensed the first time the advertisement takes place. Marketing and advertising expenses for the years ended December 31, 2023, 2022 and 2021 were $134 million, $125 million and $110 million, respectively. Science and Technology Expenses The Company incurs certain expenses related to science and technology. These expenses include salaries, building and equipment costs, utilities, administrative expenses, materials and supplies associated with the improvement and development of the Company’s products and manufacturing processes. These costs are expensed as incurred. Earnings per Share Basic earnings per share are computed using the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect the dilutive effect of common equivalent shares and increased shares that would result from the conversion of equity securities. The effects of anti-dilution are not presented. The Company defines cash and cash equivalents as cash and time deposits with maturities of three months or less when purchased. On the Consolidated Statements of Cash Flows, the total of Cash, cash equivalents and restricted cash includes restricted cash of $8 million, $8 million and $7 million as of December 31, 2023, 2022 and 2021, respectively. Restricted cash primarily represents amounts received from a counterparty related to its performance assurance on an executory contract, and is included in Other current assets on the Consolidated Balance Sheets. These amounts are contractually required to be set aside, and the counterparty can exchange the cash for another form of performance assurance at its discretion. Accounts Receivable Trade accounts receivable are recorded at the invoiced amount and do not bear interest. Consistent with the requirements of ASU 2016-13, “Financial Instruments - Credit Losses (Topic 236),” the allowance for credit losses is based on the Company’s assessment of the expected losses of customer accounts. The Company regularly reviews the allowance by considering factors such as historical experience, credit quality, the age of the accounts receivable balances, and current economic conditions that may affect a customer’s ability to pay. Account balances are charged off against the allowance when the Company believes it is probable the receivable will not be recovered. Inventory Valuation Inventory costs include material, labor, and manufacturing overhead costs, including depreciation and amortization expense associated with the manufacture and distribution of the Company’s products. Inventories are stated at lower of cost or net realizable value and expense estimates are made for excess and obsolete inventories. Cost is determined by the first-in, first-out (“FIFO”) method. Investments in Affiliates The Company accounts for investments in affiliates of 20% to 50% ownership when the Company does not have a controlling financial interest using the equity method under which the Company’s share of earnings and losses of the affiliate is reflected in earnings, and dividends are credited against the investment in affiliate when declared. I nvestments in affiliates are recorded in Other non-current assets on the Consolidated Balance Sheets, and as of December 31, 2023 and 2022, the total value of investments was $29 million and $27 million, respectively. Goodwill and Other Intangible Assets Goodwill assets are not amortized but are tested for impairment on at least an annual basis. The Company has the option to use a qualitative approach to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value as a basis for determining whether it is necessary to perform a quantitative test. In the current year, as part of the annual assessment, the Company used both a qualitative and quantitative approach to determine whether the fair value of a reporting unit was less than its carrying amount. Events and circumstances we consider in performing the qualitative assessment include macro-economic conditions, market and industry conditions, internal cost factors, and the operational stability and the overall financial performance of the reporting units. When it is determined necessary for the Company to perform the quantitative testing process for goodwill, the Company estimates fair values using a discounted cash flow approach from the perspective of a market participant. Significant assumptions used in the discounted cash flow approach are revenue growth rates and earnings before interest and taxes (“EBIT”) margins used in estimating discrete period cash flow forecasts of the reporting unit, the discount rate, and the long-term revenue growth rate and EBIT margin used in estimating the terminal business value. The cash flow forecasts of the reporting units are based upon management’s long-term view of our markets and are the forecasts that are used by senior management and the Board of Directors to evaluate operating performance. The discount rate utilized is management’s estimate of what the market’s weighted average cost of capital is for a company with a similar debt rating and stock volatility, as measured by beta. The terminal business value is determined by applying the long-term growth rate to the latest year for which a forecast exists. As part of our goodwill quantitative testing process, we would evaluate whether there are reasonably likely changes to management’s estimates that would have a material impact on the results of the goodwill impairment testing. Other indefinite-lived intangible assets are not amortized but are tested for impairment on at least an annual basis or when determined to have a finite useful life. Substantially all of the indefinite-lived intangible assets are in trademarks and trade names. The Company uses the royalty relief approach to determine whether it is more likely than not that the fair value of these assets is less than its carrying amount. This review is performed annually, or when circumstances arise which indicate there may be impairment. When applying the royalty relief approach, the Company performs a discounted cash flow analysis based on the value derived from owning these trademarks and trade names and being relieved from paying royalty to third parties. Significant assumptions used include the discrete period revenue growth rates, long-term revenue growth rate, royalty rates, discount rates and terminal value. The inputs for the goodwill and indefinite-lived intangible tests are considered Level 3 inputs under the fair value hierarchy as they are the Company’s own data, and are unobservable in the marketplace. Indefinite-lived intangible assets purchased through acquisitions are generally tested qualitatively for impairment in the first year following the acquisition before transitioning to the standard methodology described herein in subsequent years. Please refer to Note 5 for additional disclosures related to Goodwill and Other Intangible Assets. Emissions Rights The Company is allotted carbon emission credit allowances (“emissions rights”) from several of the governments under which it operates. These emissions rights are recorded at market value as of the date of issuance and are classified as Intangible assets on the Consolidated Balance Sheets. When the Company emits more than the allotted amounts, additional emissions rights must be purchased. Properties and Depreciation Property, plant and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. When assets are disposed or otherwise retired, Property, plant and equipment accounts are relieved of the cost and related accumulated depreciation and any gain or loss is included in the Consolidated Statements of Earnings. Precious metals used in our production tooling are included in property, plant and equipment and are depleted as they are consumed during the production process. Depletion typically represents an annual expense of 2% of the outstanding value and is recorded in Cost of sales on the Consolidated Statements of Earnings. The range of useful lives for the major components of the Company’s plant and equipment is as follows: Buildings and leasehold improvements 15 – 40 years Machinery and equipment Furnaces 4 – 15 years Information systems 5 – 10 years Equipment 5 – 20 years Expenditures for normal maintenance and repairs are expensed as incurred. Asset Impairments The Company evaluates tangible and intangible long-lived assets for impairment when triggering events have occurred. This requires significant assumptions including projected cash flows, projected income tax rate and terminal business value. These inputs are considered Level 3 inputs under the fair value hierarchy as they are the Company’s own data, and are unobservable in the marketplace. Changes in management intentions, market conditions or operating performance could indicate that impairment charges might be necessary that could be material to the Company’s Consolidated Financial Statements in any given period. Please refer to Note 5 for additional detail on impairment charges recorded in 2022. We review supplier terms and conditions on an ongoing basis, and have negotiated payment terms extensions in recent years in connection with our efforts to reduce working capital and improve cash flow. Separate from those terms extension actions, certain of our subsidiaries have entered into paying agency agreements with third-party administrators. These voluntary supply chain finance programs (collectively, the “Programs”) generally give participating suppliers the ability to sell, or otherwise pledge as collateral, their receivables from the Company to the participating financial institutions, at the sole discretion of both the suppliers and financial institutions. The Company is not a party to the arrangements between the suppliers and the financial institutions. The Company’s obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by the suppliers’ decisions to sell, or otherwise pledge as collateral, amounts under these arrangements. The Company's payment terms to the financial institutions, including the timing and amount of payments, are based on the original supplier invoices. One of our programs includes a parent guarantee to the participating financial institution for a certain U.S. subsidiary that, at the time of the respective program’s inception in 2015, was a guarantor subsidiary of the Company’s Credit Agreement. The obligations are presented as Accounts payable within Total current liabilities on the Consolidated Balance Sheets and all activity related to the obligations is presented within operating activities on the Consolidated Statements of Cash Flow. The Company's outstanding obligations under the programs for the twelve months ended December 31, 2023 and 2022 are as follows (in millions): Twelve Months Ended December 31, 2023 2022 Confirmed obligations outstanding at the beginning of the year $ 234 $ 226 Invoices confirmed during the year 569 656 Confirmed invoices paid during the year (592) (648) Confirmed obligations outstanding at the end of the year $ 211 $ 234 The Company recognizes current tax liabilities and assets for the estimated taxes payable or refundable on the tax returns for the current year. Deferred tax balances reflect the impact of temporary differences between the carrying amount of assets and liabilities and their tax basis. Amounts are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered. In addition, realization of certain deferred tax assets is dependent upon our ability to generate future taxable income. The Company records a valuation allowance to reduce its deferred tax assets to the amount that it believes is more likely than not to be realized. In addition, the Company estimates tax reserves to cover potential taxing authority claims for income taxes and interest attributable to audits of open tax years. Please refer to Note 20 for additional disclosures related to Income Taxes. Taxes Collected from Customers and Remitted to Government Authorities and Taxes Paid to Vendors Taxes are assessed by various governmental authorities at different rates on many different types of transactions. The Company charges sales tax or value-added tax (“VAT”) on sales to customers where applicable, as well as captures and claims back all available VAT that has been paid on purchases. VAT is recorded in separate payable or receivable accounts and does not affect Net Sales or Cost of Sales line items on the Consolidated Statement of Earnings. VAT receivable is recorded as a percentage of qualifying purchases at the time the vendor invoice is processed. VAT payable is recorded as a percentage of qualifying sales at the time an Owens Corning sale to a customer subject to VAT occurs. Amounts are paid to the taxing authority according to the method and collection prescribed by local regulations. Where applicable, VAT payable is netted against VAT receivable. The Company also pays sales tax to vendors who include a tax, required by government regulations, to the purchase price charged to the Company. Pension and Other Postretirement Benefits Accounting for pensions and other postretirement benefits involves estimating the cost of benefits to be provided well into the future and attributing that cost over the time period each employee works. To accomplish this, extensive use is made of assumptions about investment returns, discount rates, inflation, mortality, turnover and medical costs. Please refer to Notes 14 and 15 for additional disclosures related to Pension Plans and Other Postretirement Benefits, respectively. Derivative Financial Instruments The Company recognizes all derivative instruments as either assets or liabilities at fair value on the balance sheet. Please refer to Note 4 for further disclosure on derivatives. The Company performs an analysis for effectiveness of its derivatives designated as hedging instruments at the end of each quarter based on the terms of the contracts and the underlying items being hedged. The change in the fair value of cash flow hedges is deferred in Accumulated other comprehensive income (deficit) (“AOCI”) and is subsequently recognized in Cost of sales (for commodity and foreign currency cash flow hedges) on the Consolidated Statements of Earnings in order to mirror the location of the hedged items impacting earnings. Cash settlements for commodity and foreign currency hedges qualifying as cash flow hedges are included in Operating activities in the Consolidated Statements of Cash Flows. The Company has translation exposure resulting from translating the financial statements of foreign subsidiaries into U.S. Dollars, which is recognized in Currency translation adjustment (a component of AOCI). The Company uses cross-currency forward contracts to hedge portions of the net investment in foreign subsidiaries against fluctuations in foreign exchange rates. The changes in fair values of these derivative instruments are recognized in Currency translation adjustment (a component of AOCI), with recognition of the excluded components amortized to Interest expense, net on the Consolidated Statements of Earnings. Cash settlements for derivatives qualifying as net investment hedges are included in Investing activities in the Consolidated Statements of Cash Flows. The Company uses forward currency exchange contracts to manage existing exposures to foreign exchange rate risks related to assets and liabilities recorded on the Consolidated Balance Sheets. Gains and losses resulting from the changes in fair value of these instruments are recorded in Other expense (income), net on the Consolidated Statements of Earnings, and are substantially offset by net revaluation impacts on foreign currency denominated balance sheet exposures (which are also recorded in Other expense (income), net). Cash settlements for non-designated derivatives are included in the Consolidated Statements of Cash Flows in the category that is consistent with the nature of the derivative instrument, which is generally the same category as the underlying item being hedged. Fair Value Measurements The carrying value of cash and cash equivalents, accounts receivable and short-term debt approximate fair value because of the short-term maturity of the instruments. Please refer to Notes 4, 13, 14 and 15 for fair value disclosures of derivative financial instruments, long-term debt, pension plans and postemployment and postretirement benefits other than pensions. The functional currency of the Company’s subsidiaries is generally the applicable local currency. Assets and liabilities of foreign subsidiaries are translated into United States Dollars at the period-end rate of exchange, and their Statements of Earnings (Loss) and Statements of Cash Flows are converted at the monthly average rate. The resulting translation adjustment is included in AOCI in the Consolidated Balance Sheets and Consolidated Statements of Stockholders’ Equity. Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are recorded in Other expense (income), net in the Consolidated Statements of Earnings as incurred. As discussed in the Derivative Financial Instruments section above, the Company uses non-designated foreign currency derivative financial instruments to mitigate this risk. The Company recorded foreign currency transactional (losses)/gains, net of associated derivative activity, of $(2) million, $(4) million and $1 million during the years ended December 31, 2023, 2022, and 2021, respectively. Please refer to Note 4 for additional disclosures related to non-designated derivatives. Related Party Transactions In the first quarter of 2021, a related party relationship was established as a result of a member of the Company’s Board of Directors being named an executive officer of one of the Company’s preexisting suppliers. The related party transactions with this supplier consist of the purchase of raw materials. Purchases from the related party supplier were $92 million for the year ended December 31, 2023. As of December 31, 2023, amounts due to the related party supplier were $5 million. Purchases from the related party supplier were $129 million and $87 million for the years ended December 31, 2022 and December 31, 2021, respectively. As of December 31, 2022 and December 31, 2021, amounts due to the related party supplier were $3 million and $1 million, respectively. Failed Sale-Leaseback - Fort Smith, Arkansas Municipal Tax Incentive In the fourth quarter of 2023, the Company signed a municipal tax incentive agreement, as part of which, the Company sold its Fort Smith, Arkansas plant and equipment (together, the “facility”) to the municipality of Fort Smith for cash of $165 million. The Company then, on the same day, entered into an agreement to lease the facility from the municipality of Fort Smith over ten years for a total lease liability of $165 million and immediately purchased ten-year municipal bonds at 6.7% interest issued by the municipality of Fort Smith with cash of $165 million. In the Consolidated Statements of Cash Flows, the cash proceeds from the sale of the facility and the cash used for the bond purchase are presented on a net basis within the Net cash flows used by investing activities. The monthly lease payments under the financing lease obligation and the semi-annual bond coupon payments associated with the bond investment are legally offset and, as such, the offset lease obligation and bond investment amounts are presented on a net basis on the Consolidated Balance Sheets. There will be no cash payments made by either party over the ten-year period. At the termination of the lease agreement, a non-cash exchange will occur where the municipality will call the bond and return title of the facility to the Company. The transaction did not qualify for sale-leaseback treatment under ASC 842 and, therefore, the plant’s net book value, as well as the net book value of the equipment sold, remains in Property, plant and equipment, net on the Consolidated Balance Sheets. Depreciation expense on the assets sold remains within Cost of Sales on the Consolidated Statements of Earnings. Accounting Pronouncements The following table summarizes recent Accounting Standard Updates (“ASU”) issued by the Financial Accounting Standards Board (“FASB”) that could have an impact on the Company's Consolidated Financial Statements: Standard Description Effective Date for Company Effect on the Consolidated Financial Statements Recently issued standards: ASU 2023-06 “Disclosure Improvements” The amendments in this update modify the disclosure or presentation requirements of a variety of Topics The effective date for each topic is contingent on future SEC rule setting. We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statement disclosures. We do not believe the adoption of this guidance will have a material effect on the results of operations. ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” The amendments in this update improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. January 1, 2024 We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statement disclosures. We do not believe the adoption of this guidance will have a material effect on the results of operations. ASU 2023-08 “Intangibles—Goodwill and Other— Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets” This standard provides that certain crypto assets should be accounted for under fair value methodology rather than as indefinite-lived intangibles. January 1, 2024 We do not believe the adoption of this guidance will have a material effect on our Consolidated Financial Statements. ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” This standard modifies the rate reconciliation and income taxes paid disclosures by requiring consistent categories and greater disaggregation of information in the rate reconciliation, as well as requiring income taxes paid to be disaggregated by jurisdiction. January 1, 2025 We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statements.

SEGMENT INFORMATION

SEGMENT INFORMATION	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION The Company has three reportable segments: Roofing, Insulation and Composites. Accounting policies for the segments are the same as those for the Company. The Company’s three reportable segments are defined as follows: Roofing – Within our Roofing segment, the Company manufactures and sells residential roofing shingles, oxidized asphalt materials, and roofing components used in residential and commercial construction and specialty applications. Insulation – Within our Insulation segment, the Company manufactures and sells thermal and acoustical batts, loosefill insulation, spray foam insulation, foam sheathing and accessories. It also manufactures and sells glass fiber pipe insulation, energy efficient flexible duct media, bonded and granulated stone wool insulation, cellular glass insulation, and foam insulation used in above- and below-grade construction applications. Composites – Within our Composites segment, the Company manufactures, fabricates and sells glass reinforcements in the form of fiber. Glass reinforcement materials are also used by the Composites segment to manufacture and sell high value applications in the form of non-wovens, fabrics and composite lumber. NET SALES The following tables show a disaggregation of our net sales by segment and geographic region (in millions). Corporate eliminations (shown below) largely reflect intercompany sales from Composites to Roofing. External customer sales are attributed to geographic region based upon the location from which the product is sold to the external customer. Twelve Months Ended December 31, 2023 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 3,781 $ 1,407 $ 359 $ (296) $ 5,251 U.S. commercial and industrial 137 869 845 (8) $ 1,843 Total United States 3,918 2,276 1,204 (304) $ 7,094 Europe 19 771 492 (3) $ 1,279 Asia-Pacific 1 147 429 — $ 577 Rest of world 92 474 161 — $ 727 NET SALES $ 4,030 $ 3,668 $ 2,286 $ (307) $ 9,677 Twelve Months Ended December 31, 2022 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 3,355 $ 1,523 $ 352 $ (262) $ 4,968 U.S. commercial and industrial 160 796 872 (4) $ 1,824 Total United States 3,515 2,319 1,224 (266) $ 6,792 Europe 21 805 671 (5) $ 1,492 Asia-Pacific 6 160 550 — $ 716 Rest of world 116 430 215 — $ 761 NET SALES $ 3,658 $ 3,714 $ 2,660 $ (271) $ 9,761 Twelve Months Ended December 31, 2021 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 2,958 $ 1,194 $ 312 $ (230) $ 4,234 U.S. commercial and industrial 120 705 637 — $ 1,462 Total United States 3,078 1,899 949 (230) $ 5,696 Europe 19 718 653 (6) $ 1,384 Asia-Pacific 7 187 552 — $ 746 Rest of world 105 380 187 — $ 672 NET SALES $ 3,209 $ 3,184 $ 2,341 $ (236) $ 8,498 Our contracts with customers are broadly similar in nature throughout our reportable segments, but the amount, timing and uncertainty of revenue and cash flows may vary in each reportable segment due to geographic and end-market economic factors. Sales to major customer - One customer, which is a customer of both the Roofing and Insulation segments, accounted for $1 billion (11%) and $895 million (11%) of consolidated sales in 2023 and 2021, respectively. No individual customers accounted for 10% or more of consolidated sales in 2022. In the United States, sales are primarily related to the residential housing market and commercial and industrial applications. Residential market demand is driven by housing starts and repair and remodeling activity (influenced by existing home sales, seasonal home improvement and damage from major storms). Significant portions of our residential products across our three reportable segments are used interchangeably in both new construction and repair and remodeling, and our customers typically distribute (or use) the products for both applications. U.S. commercial and industrial revenues are largely driven by U.S. industrial production growth, commercial construction activity and overall economic conditions in the U.S. Outside of the United States (Europe, Asia-Pacific and Rest of world), sales are primarily related to commercial and industrial applications and, to a lesser extent, residential applications in certain countries. Throughout the international regions, demand is primarily driven by industrial production growth, commercial construction activity and overall economic conditions in each respective geographical region. EARNINGS BEFORE INTEREST AND TAXES Earnings before interest and taxes (EBIT) by segment consists of net sales less related costs and expenses and are presented on a basis that is used internally for evaluating segment performance. Certain items, such as general corporate expenses or income and certain other expense or income items, are excluded from the internal evaluation of segment performance. Accordingly, these items are not reflected in EBIT for our reportable segments and are included within Corporate, Other and Eliminations. The following table summarizes EBIT by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 1,174 $ 831 $ 753 Insulation 619 612 446 Composites 242 498 376 Total reportable segments 2,035 1,941 1,575 Corporate, Other and Eliminations Restructuring costs (169) (48) (34) Gain on sale of Santa Clara, California site 189 — — Pension settlement losses (145) — — Gain on sale of land in India — — 15 Gain on sale of Shanghai, China facility — 27 — Gains on sale of certain precious metals 2 18 53 Intangible assets impairment charge — (96) — Acquisition and divestiture-related costs — (7) — Recognition of acquisition inventory fair value step-up — — (1) Paroc marine recall (15) — — Loss on sale of Chambery, France DUCS business — (30) — Loss on sale of Russian operations — (33) — Gain on remeasurement of Fiberteq equity investment — 130 — General corporate expense and other (230) (179) (160) Total Corporate, other and eliminations (368) (218) (127) EBIT $ 1,667 $ 1,723 $ 1,448 TOTAL ASSETS AND PROPERTY, PLANT AND EQUIPMENT The following table summarizes total assets by segment and property, plant and equipment by geographic region (in millions): December 31, TOTAL ASSETS 2023 2022 Reportable Segments Roofing $ 1,863 $ 1,897 Insulation 3,934 3,930 Composites 3,153 3,202 Total reportable segments 8,950 9,029 Cash and cash equivalents 1,615 1,099 Noncurrent deferred income taxes 24 16 Investments in affiliates 29 27 Assets held for sale — 45 Corporate property, plant and equipment, other assets and eliminations 619 536 CONSOLIDATED TOTAL ASSETS $ 11,237 $ 10,752 December 31, PROPERTY, PLANT AND EQUIPMENT BY GEOGRAPHIC REGION 2023 2022 United States $ 2,508 $ 2,383 Europe 606 541 Asia-Pacific 462 541 Rest of world 265 264 CONSOLIDATED PROPERTY, PLANT AND EQUIPMENT $ 3,841 $ 3,729 PROVISION FOR DEPRECIATION AND AMORTIZATION The following table summarizes the provision for depreciation and amortization by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 64 $ 62 $ 59 Insulation 210 206 208 Composites 172 175 162 Total reportable segments 446 443 429 General corporate depreciation and amortization (a) 163 88 73 CONSOLIDATED PROVISION FOR DEPRECIATION AND AMORTIZATION $ 609 $ 531 $ 502 (a) In 2023, 2022 and 2021, General corporate depreciation and amortization expense included $101 million, $26 million and $13 million, respectively, of accelerated depreciation and amortization related to restructuring actions further explained in Note 12 to the Consolidated Financial Statements. ADDITIONS TO PROPERTY, PLANT AND EQUIPMENT The following table summarizes cash paid for property, plant and equipment by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 65 $ 50 $ 54 Insulation 182 196 144 Composites 212 151 153 Total reportable segments 459 397 351 General corporate additions 67 49 65 CONSOLIDATED ADDITIONS TO PROPERTY, PLANT AND EQUIPMENT $ 526 $ 446 $ 416

INVENTORIES

INVENTORIES	12 Months Ended
	Dec. 31, 2023
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories consist of the following (in millions): December 31, 2023 2022 Finished goods $ 742 $ 843 Materials and supplies 456 491 Total inventories $ 1,198 $ 1,334

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS	DERIVATIVE FINANCIAL INSTRUMENTS The Company is exposed to, among other risks, the impact of changes in commodity prices, foreign currency exchange rates, and interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks, and does not enter into such transactions for trading purposes. The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties. Contracts with counterparties generally contain right of offset provisions. These provisions effectively reduce the Company’s exposure to credit risk in situations where the Company has gain and loss positions outstanding with a single counterparty. It is the Company’s policy to offset on the Consolidated Balance Sheets the amounts recognized for derivative instruments with any cash collateral arising from derivative instruments executed with the same counterparty under a master netting agreement. As of December 31, 2023 and 2022, the Company did not have any amounts on deposit with any of its counterparties, nor did any of its counterparties have any amounts on deposit with the Company. Derivative Fair Values Our derivatives consist of natural gas forward swaps, cross-currency swaps, foreign exchange forward contracts and U.S. treasury rate lock agreements, all of which are over-the-counter and not traded through an exchange. The Company uses widely accepted valuation tools to determine fair value, such as discounting cash flows to calculate a present value for the derivatives. The models use Level 2 inputs, which are observable market-based inputs or unobservable inputs that are corroborated by market data. Examples include forward curves and other commonly quoted observable transactions and prices. The fair value of our derivatives and hedging instruments are all classified as Level 2 investments within the three-tier hierarchy. The following table presents the fair value of derivatives and hedging instruments and the respective location on the Consolidated Balance Sheets (in millions): Fair Value at Location December 31, 2023 December 31, 2022 Derivative assets designated as hedging instruments: Cash flow hedges: Natural gas forward swaps Other current assets $ — $ 2 Derivative liabilities designated as hedging instruments: Cash flow hedges: Natural gas forward swaps Other current liabilities $ 15 $ 32 Derivative assets not designated as hedging instruments: Foreign exchange forward contracts Other current assets $ 1 $ 1 Derivative liabilities not designated as hedging instruments: Foreign exchange forward contracts Other current liabilities $ 1 $ 2 Consolidated Statements of Earnings Activity The following table presents the impact and respective location of derivative activities on the Consolidated Statements of Earnings (in millions): Twelve Months Ended Location 2023 2022 2021 Derivative activity designated as hedging instruments: Natural gas cash flow hedges: Amount of loss (gain) reclassified from AOCI (as defined below) into earnings (a) Cost of sales $ 52 $ (52) $ (15) Cross-currency swap net investment hedges: Amount of gain recognized in earnings on derivative amounts excluded from effectiveness testing Interest expense, net $ — $ (1) $ (5) Derivative activity not designated as hedging instruments: Foreign currency: Amount of loss (gain) recognized in earnings (b) Other expense (income), net $ 10 $ (29) $ (41) Treasury interest rate lock: Amount of gain recognized in earnings Other expense (income), net $ — $ (6) $ — (a) Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”) (b) Losses (gains) related to foreign currency derivatives were substantially offset by net revaluation impacts on foreign currency denominated balance sheet exposures, which were also recorded in Other expense (income), net. Please refer to the “Other Derivatives” section below for additional detail. Consolidated Statements of Comprehensive Earnings Activity The following table presents the impact of derivative activities on the Consolidated Statements of Comprehensive Earnings (in millions): Amount of Gain (Loss) Recognized in Comprehensive Earnings Twelve Months Ended December 31, Hedging Type Derivative Financial Instrument 2023 2022 Net investment hedge Cross-currency swaps $ — $ 5 Cash flow hedge Natural gas forward swaps $ 15 $ (40) Cash flow hedge Treasury interest rate lock $ — $ 20 Cash Flow Hedges The Company uses a combination of derivative financial instruments, which qualify as cash flow hedges, and physical contracts to manage forecasted exposure to electricity and natural gas prices. As of December 31, 2023, the notional amounts of these natural gas forward swaps were 7 million MMBTu (or MMBTu equivalent based on U.S. and European indices), compared with the notional amounts of 8 million MMBTu at December 31, 2022. The Company has designated these natural gas forward swaps as cash flow hedges, with the last hedge maturing no later than March 2025. A net unrecognized loss of $15 million related to these natural gas forward swaps was included in AOCI as of December 31, 2023, $15 million of which is expected to be reclassified into earnings in the next 12 months. In 2020, the Company entered into a $175 million forward U.S. Treasury rate lock agreement to manage the U.S. Treasury portion of its interest rate risk associated with the anticipated issuance of certain 10-year fixed rate senior notes. The Company designated this outstanding forward U.S. Treasury rate lock agreement, which expired on December 15, 2022, as a cash flow hedge. The locked fixed rate of this agreement was 0.994%. In September 2022, a gain of $6 million was recognized as a result of a change in the forecasted issuance of certain senior notes. In December 2022, the Company received cash of $37 million upon the settlement of the rate lock agreement, of which $31 million will be amortized as a component of interest expense upon the future issuance of senior notes. This unrecognized gain of $31 million was included in AOCI as of December 31, 2023. The Company has translation exposure resulting from translating the financial statements of foreign subsidiaries into U.S. Dollars, which is recognized in Currency translation adjustment (a component of AOCI). In the second quarter of 2022, the Company terminated the remaining cross-currency forward contracts related to the hedged portions of the net investment in foreign subsidiaries, resulting in cash proceeds of $11 million. Other Derivatives The Company uses forward currency exchange contracts to manage existing exposures to foreign exchange risk related to assets and liabilities recorded on the Consolidated Balance Sheets. As of December 31, 2023, the Company had notional amounts of $183 million for non-designated derivative financial instruments related to foreign currency exposures in U.S. Dollars primarily related to the Brazilian Real, Indian Rupee, Chinese Yuan, Hong Kong Dollar, South Korean Won, and the European Euro. In addition, the Company had notional amounts of $45 million for non-designated derivative financial instruments related to foreign currency exposures in European Euro primarily related to the Polish Złoty, British Pound Sterling, and the U.S. Dollar.

GOODWILL AND OTHER INTANGIBLE A

GOODWILL AND OTHER INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	GOODWILL AND OTHER INTANGIBLE ASSETS The Company tests goodwill and indefinite-lived intangible assets for impairment as of October 1st each year, or more frequently should circumstances change or events occur that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Goodwill The changes in the net carrying amount of goodwill by segment are as follows (in millions): Roofing Insulation Composites Total Gross carrying amount at December 31, 2022 $ 394 $ 1,499 $ 425 $ 2,318 Acquisitions (see Note 7) — — (1) (1) Foreign currency translation 1 21 1 23 Gross carrying amount at December 31, 2023 395 1,520 425 2,340 Accumulated impairment losses at December 31, 2022 — (935) — (935) Foreign currency translation — (13) — (13) Accumulated impairment losses at December 31, 2023 — (948) — (948) Balance, net of impairment at December 31, 2023 $ 395 $ 572 $ 425 $ 1,392 Roofing Insulation Composites Total Gross carrying amount at December 31, 2021 $ 397 $ 1,481 $ 75 $ 1,953 Acquisitions (see Note 7) — 62 353 415 Foreign currency translation (3) (44) (3) (50) Gross carrying amount at December 31, 2022 394 1,499 425 2,318 Accumulated impairment losses at December 31, 2021 — (963) — (963) Foreign currency translation — 28 — 28 Accumulated impairment losses at December 31, 2022 — (935) — (935) Balance, net of impairment at December 31, 2022 $ 394 $ 564 $ 425 $ 1,383 The annual tests performed in the fourth quarter of 2023 and 2022 resulted in no impairment of goodwill. The annual 2023 testing indicated that the business enterprise values for the Roofing and Insulation reporting units substantially exceeded their respective carrying values. The business enterprise value of the Composites reporting unit exceeded its carrying value by approximately 5%. There is uncertainty surrounding the macroeconomic factors that impact this reporting unit and a sustained downturn in these factors or a change in the long-term revenue growth or profitability for this reporting unit could increase the likelihood of a future impairment. Other Intangible Assets Other intangible assets consist of the following (in millions): December 31, 2023 December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Accumulated Net Indefinite-lived trademarks and trade names $ 992 $ — $ 992 $ 989 $ — $ 989 Amortizable intangible assets Customer relationships 614 (283) 331 638 (243) 395 Technology 326 (203) 123 330 (187) 143 Trademarks 12 (2) 10 12 — 12 Other (a) 74 (2) 72 66 (3) 63 Total other intangible assets $ 2,018 $ (490) $ 1,528 $ 2,035 $ (433) $ 1,602 (a) Other primarily includes emissions rights. Fair values used in testing for potential impairment of our trademarks and trade names are calculated using the relief-from-royalty method by applying an estimated market value royalty rate to the forecasted revenues of the businesses that utilize those assets. The assumed cash flows from this calculation are discounted at a rate based on a market participant discount rate. The annual test performed in the fourth quarter of 2023 resulted in no impairment of indefinite-lived intangible assets. There are two indefinite-lived intangible assets that are at an increased risk of impairment, both of which are used by our Insulation segment and were partially impaired in the fourth quarter of 2022. A change in the estimated long-term revenue growth rate or discount rate for the segment could increase the likelihood of a future impairment. The following table presents the carrying values of these assets as of December 31, 2023 (in millions): Trade names and trademarks December 31, 2023 European building and technical insulation trade name $ 90 Global cellular glass insulation trademark $ 80 All remaining indefinite-lived intangible assets substantially exceeded their carrying values as of December 31, 2023. The annual tests performed in the fourth quarter of 2022 resulted in impairment of five of the Company's indefinite-lived intangible assets. Based on the results of this testing, the Company recorded pre-tax non-cash impairment charges totaling $96 million in the fourth quarter of 2022. These charges were recorded in Other expense (income), net on the Consolidated Statements of Earnings, and were included in the Corporate, Other and Eliminations reporting category. These charges included the following within the Insulation segment: a pre-tax impairment charge of $63 million for a trade name used by our European building and technical insulation business due to the effect of a higher discount rate, associated with rising interest rates, and general economic and geopolitical uncertainty within the European markets resulting in a slightly lower profitability outlook; a pre-tax impairment charge of $12 million related to a trademark used on global cellular glass insulation products due to the effect of a higher discount rate, associated with rising interest rates, and general economic and geopolitical uncertainty within the European markets; a pre-tax impairment charge of $8 million for a trademark used on stone wool insulation products sold in the United States due to forecasted profitability of the product line. The remaining $13 million pre-tax impairment charge for trademarks used within the components business in our Roofing segment was due to the effect of a higher discount rate, associated with rising interest rates, and forecasted profitability of a specific product line. Definite-Lived Intangible Assets The Company amortizes the cost of other intangible assets over their estimated useful lives which, individually, range up to 45 years. The Company's future cash flows are not materially impacted by its ability to extend or renew agreements related to its amortizable intangible assets. Amortization expense for intangible assets for the years ended December 31, 2023, 2022 and 2021 was $94 million, $55 million, and $49 million, respectively. In 2023, amortization expense included $25 million of accelerated amortization related to restructuring actions further explained in Note 12 to the Consolidated Financial Statements. The estimated amortization expense for intangible assets for the next five years is as follows (in millions): Period Amortization 2024 $ 65 2025 $ 58 2026 $ 44 2027 $ 35 2028 $ 34

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consist of the following (in millions): December 31, 2023 2022 Land $ 168 $ 166 Buildings and leasehold improvements 1,263 1,221 Machinery and equipment 5,402 5,220 Construction in progress 665 522 7,498 7,129 Accumulated depreciation (3,657) (3,400) Property, plant and equipment, net $ 3,841 $ 3,729 Machinery and equipment includes certain precious metals used in our production tooling, which comprise approximately 10% of total machinery and equipment as of December 31, 2023 and December 31, 2022. Our production tooling needs in our Composites segment are changing in response to economic and technological factors. As a result, we exchanged certain precious metals used in production tooling for certain other precious metals to be used in production tooling. There were no non-cash exchanges during the twelve months ended December 31, 2023. During the twelve months ended December 31, 2022, these non-cash exchanges resulted in a net increase to Machinery and equipment of $18 million and gains totaling $18 million. These gains are included in Other expense (income), net on the Consolidated Statements of Earnings and reflected in the Corporate, Other and Eliminations reporting category. These non-cash investing activities are not included in Net cash flow used by investing activities in the Consolidated Statements of Cash Flows. We do not expect these non-cash exchanges to materially impact our current or future capital expenditure requirements or rate of depletion. For the years ended December 31, 2023, 2022 and 2021, depreciation expense was $481 million, $447 million and $429 million, respectively, which includes depletion expense related to precious metals used in our production tooling. In 2023, 2022 and 2021, depreciation expense included $76 million, $26 million and $13 million, respectively, of accelerated depreciation related to restructuring actions further explained in Note 12 to the Consolidated Financial Statements.

ACQUISITIONS

ACQUISITIONS	12 Months Ended
	Dec. 31, 2023
Business Combination and Asset Acquisition [Abstract]
ACQUISITIONS	ACQUISITIONS On September 1, 2022, the Company acquired the remaining 50% interest in Fiberteq, LLC (“Fiberteq”), the joint venture between Owens Corning and IKO Industries, Ltd, which produces high-quality wet-formed fiberglass mat for roofing applications for $140 million, net of cash acquired. During the third quarter of 2023, an additional $6 million of consideration was paid as a result of final working capital adjustments. The acquisition advances the Composites strategy to focus on high-value material solutions and expands Owens Corning's capacity to produce non-woven mat. The Company's 50% interest in Fiberteq was accounted for as an equity-method investment and had a carrying value of $17 million at the acquisition date. The Company used the discounted cash flow method to remeasure the previously held equity method investment to its fair value of $147 million, resulting in the recognition of a gain of $130 million, which is recorded in Gain on equity method investment on the 2022 Consolidated Statements of Earnings. The operating results for Fiberteq have been included in the Composites segment within the Consolidated Financial Statements since the date of the acquisition. The purchase price allocation included $58 million in intangible assets, which primarily consists of customer relationships with an estimated weighted average life of 3 years, a $62 million unfavorable contract liability and $242 million in goodwill , of which 50% is tax deductible . The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material. On June 1, 2022, the Company acquired all of the outstanding assets of WearDeck®, a premium producer of composite weather-resistant decking for commercial and residential applications, for $133 million, net of cash acquired. The acquisition advances the Composites business growth strategy to focus on high-value material solutions within the building and construction industry. The operating results for WearDeck® have been included in the Composites segment within the Consolidated Financial Statements since the date of the acquisition. The purchase price allocation included $38 million in intangible assets and $68 million in goodwill , of which $61 million is tax deductible. The intangible assets consist of definite-lived trademarks of $7 million with an estimated average life of 10 years, technology of $10 million with an estimated weighted average life of 11 years and customer relationships of $21 million with an estimated weighted average life of 15 years. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material. On May 23, 2022, Owens Corning and Pultron Composites (“Pultron”) formed a joint venture (the “JV”) to manufacture and sell fiberglass rebar. The Company contributed approximately $47 million to acquire a 65.5% controlling interest and has established a redeemable noncontrolling interest of $25 million related to Pultron, the minority holder. The JV expands Owens Corning’s capability to produce high-value material solutions by combining the Company’s glass-fiber material technology, channel access and extensive industry experience with Pultron’s manufacturing expertise and process efficiency. The fully consolidated operating results for the JV have been included in the Company’s Composites segment within the Consolidated Financial Statements since the date of the formation of the JV. Subsequent to the JV formation, the JV acquired assets and technology from Pultron for approximately $65 million . The purchase price allocation included $15 million in intangible assets, consisting of technology, with an estimated weighted average life of 15 years and $42 million in goodwill, of which $37 million is tax deductible. The factors contributing to the recognition of the amount of goodwill are based on several strategic and synergistic benefits that are expected to be realized from the acquisition. The pro-forma effect of this acquisition on revenues and earnings was not material.

DIVESTITURES

DIVESTITURES	12 Months Ended
	Dec. 31, 2023
Business Divestitures [Abstract]
DIVESTITURES	DIVESTITURES During the third quarter of 2021, the Company entered into a purchase and sale agreement for the Company’s Insulation site in Santa Clara, California and ceased operations in the fourth quarter of 2022. Assets held for sale as of December 31, 2022 were $45 million and primarily consisted of land. In March 2023, the Company finalized the sale for total proceeds of $234 million, net of transaction fees. Total proceeds included a non-refundable deposit of $50 million received in the third quarter of 2021. As a result, the Company recognized a pre-tax gain of $189 million in the first quarter of 2023, which is recorded in Gain on sale of site on the Consolidated Statements of Earnings. On November 24, 2022, the Company finalized the sale of its Russian operations within the Composites and Insulation segments. As a result of this sale, the Company received $104 million, net of cash sold, in consideration and recorded a pre-tax loss of $33 million in Other expense (income), net on the Consolidated Statements of Earnings. On July 1, 2022, the Company finalized the sale of the European portion of the dry-use chopped strands (“DUCS”) product line located in Chambéry, France, within the Composites segment. As a result of this sale, the Company received $80 million, net of cash sold, in consideration and recorded a pre-tax loss of $30 million in Other expense (income), net

LEASES

LEASES	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
LEASES	LEASES The Company leases certain equipment and facilities under both operating and finance leases expiring on various dates through 2050. The nature of these leases generally fall into the following five categories: real estate, material handling equipment, fleet vehicles, office equipment and energy equipment. For leases with initial terms greater than 12 months, we consider these our right-of-use assets and record the related asset and obligation at the present value of lease payments over the term. For leases with initial terms equal to or less than 12 months, we do not consider them as right-of-use assets and instead consider them short-term lease costs that are recognized on a straight-line basis over the lease term. Our leases may include escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments when reasonably certain. These options to extend or terminate a lease are at our discretion. We have elected to take the practical expedient and not separate lease and non-lease components of contracts. We estimate our incremental borrowing rate to discount the lease payments based on information available at lease commencement. Our lease agreements do not contain any material residual value guarantees. Balance Sheet Classification The table below presents the lease-related assets and liabilities recorded on the balance sheet (in millions): December 31, Leases Classification on Balance Sheet 2023 2022 Assets Operating lease assets Operating lease right-of-use assets $ 222 $ 204 Finance lease assets Other non-current assets 149 127 Total lease assets $ 371 $ 331 Liabilities Current Operating Current operating lease liabilities $ 62 $ 52 Finance Long-term debt – current portion 32 28 Non-current Operating Non-current operating lease liabilities 165 152 Finance Long-term debt, net of current portion 122 103 Total lease liabilities $ 381 $ 335 Lease Costs The table below presents lease-related costs (in millions): Twelve Months Ended December 31, 2023 2022 2021 Operating lease cost $ 81 $ 67 $ 69 Finance lease cost Amortization of right-of-use asset $ 35 $ 30 $ 23 Interest on lease liabilities $ 6 $ 4 $ 4 Short-term lease cost $ 6 $ 12 $ 7 Variable lease cost $ 8 $ 6 $ 5 Cash paid for operating leases included $76 million, $68 million and $70 million in the years ended December 31, 2023, 2022 and 2021, respectively. Cash paid for finance leases included $33 million for financing activities and $6 million for operating activities for the year ended December 31, 2023. Cash paid for finance leases included $30 million for financing activities and $4 million for operating activities for the year ended December 31, 2022. Cash paid for finance leases included $23 million for financing activities and $4 million for operating activities for the year ended December 31, 2021. We added $104 million, $119 million and $81 million of operating lease liabilities as a result of obtaining operating lease right-of-use assets in the years ended December 31, 2023, 2022 and 2021 respectively. We added $61 million, $70 million and $51 million of finance lease liabilities as a result of obtaining finance lease right-of-use assets in the years ended December 31, 2023, 2022 and 2021 respectively. Other Information The tables below present supplemental information related to leases: December 31, Weighted-average remaining lease term (years) 2023 2022 2021 Operating leases 4.6 4.8 4.2 Finance leases 9.5 9.6 6.9 December 31, Weighted-average discount rate 2023 2022 2021 Operating leases 3.79 % 3.32 % 3.27 % Finance leases 4.02 % 3.46 % 3.67 % Maturities of Lease Liabilities The table below reconciles the undiscounted cash flows for each of the first five years and the total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the balance sheet as of December 31, 2023 (in millions): Period Operating Leases Finance Leases 2024 $ 70 $ 37 2025 58 29 2026 43 20 2027 30 13 2028 17 10 2029 and beyond 30 87 Total minimum lease payments 248 196 Less: implied interest 21 42 Present value of future minimum lease payments 227 154 Less: current lease obligations 62 32 Long-term lease obligations $ 165 $ 122
LEASES	LEASES The Company leases certain equipment and facilities under both operating and finance leases expiring on various dates through 2050. The nature of these leases generally fall into the following five categories: real estate, material handling equipment, fleet vehicles, office equipment and energy equipment. For leases with initial terms greater than 12 months, we consider these our right-of-use assets and record the related asset and obligation at the present value of lease payments over the term. For leases with initial terms equal to or less than 12 months, we do not consider them as right-of-use assets and instead consider them short-term lease costs that are recognized on a straight-line basis over the lease term. Our leases may include escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments when reasonably certain. These options to extend or terminate a lease are at our discretion. We have elected to take the practical expedient and not separate lease and non-lease components of contracts. We estimate our incremental borrowing rate to discount the lease payments based on information available at lease commencement. Our lease agreements do not contain any material residual value guarantees. Balance Sheet Classification The table below presents the lease-related assets and liabilities recorded on the balance sheet (in millions): December 31, Leases Classification on Balance Sheet 2023 2022 Assets Operating lease assets Operating lease right-of-use assets $ 222 $ 204 Finance lease assets Other non-current assets 149 127 Total lease assets $ 371 $ 331 Liabilities Current Operating Current operating lease liabilities $ 62 $ 52 Finance Long-term debt – current portion 32 28 Non-current Operating Non-current operating lease liabilities 165 152 Finance Long-term debt, net of current portion 122 103 Total lease liabilities $ 381 $ 335 Lease Costs The table below presents lease-related costs (in millions): Twelve Months Ended December 31, 2023 2022 2021 Operating lease cost $ 81 $ 67 $ 69 Finance lease cost Amortization of right-of-use asset $ 35 $ 30 $ 23 Interest on lease liabilities $ 6 $ 4 $ 4 Short-term lease cost $ 6 $ 12 $ 7 Variable lease cost $ 8 $ 6 $ 5 Cash paid for operating leases included $76 million, $68 million and $70 million in the years ended December 31, 2023, 2022 and 2021, respectively. Cash paid for finance leases included $33 million for financing activities and $6 million for operating activities for the year ended December 31, 2023. Cash paid for finance leases included $30 million for financing activities and $4 million for operating activities for the year ended December 31, 2022. Cash paid for finance leases included $23 million for financing activities and $4 million for operating activities for the year ended December 31, 2021. We added $104 million, $119 million and $81 million of operating lease liabilities as a result of obtaining operating lease right-of-use assets in the years ended December 31, 2023, 2022 and 2021 respectively. We added $61 million, $70 million and $51 million of finance lease liabilities as a result of obtaining finance lease right-of-use assets in the years ended December 31, 2023, 2022 and 2021 respectively. Other Information The tables below present supplemental information related to leases: December 31, Weighted-average remaining lease term (years) 2023 2022 2021 Operating leases 4.6 4.8 4.2 Finance leases 9.5 9.6 6.9 December 31, Weighted-average discount rate 2023 2022 2021 Operating leases 3.79 % 3.32 % 3.27 % Finance leases 4.02 % 3.46 % 3.67 % Maturities of Lease Liabilities The table below reconciles the undiscounted cash flows for each of the first five years and the total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the balance sheet as of December 31, 2023 (in millions): Period Operating Leases Finance Leases 2024 $ 70 $ 37 2025 58 29 2026 43 20 2027 30 13 2028 17 10 2029 and beyond 30 87 Total minimum lease payments 248 196 Less: implied interest 21 42 Present value of future minimum lease payments 227 154 Less: current lease obligations 62 32 Long-term lease obligations $ 165 $ 122

OTHER CURRENT LIABILITIES

OTHER CURRENT LIABILITIES	12 Months Ended
	Dec. 31, 2023
Payables and Accruals [Abstract]
OTHER CURRENT LIABILITIES	OTHER CURRENT LIABILITIES Other current liabilities consist of the following current portions of these liabilities (in millions): December 31, 2023 2022 Payroll, vacation pay and incentive compensation $ 224 $ 233 Income, property, and other non-payroll taxes 91 108 Other 300 338 Total other current liabilities $ 615 $ 679

WARRANTIES

WARRANTIES	12 Months Ended
	Dec. 31, 2023
Product Warranties Disclosures [Abstract]
WARRANTIES	WARRANTIES The Company records a liability for warranty obligations at the date the related products are sold. Adjustments are made as new information becomes available. Please refer to Note 1 for information about our separately-priced extended warranty contracts. A reconciliation of the warranty liability is as follows (in millions): December 31, 2023 2022 Beginning balance $ 88 $ 81 Amounts accrued for current year 26 20 Settlements of warranty claims (17) (13) Ending balance $ 97 $ 88

RESTRUCTURING, ACQUISITION AND

RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS	RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS The Company may incur restructuring, transaction and integration costs related to acquisitions and divestitures, and may incur restructuring and other exit costs in connection with its global cost reduction, product line and productivity initiatives and the Company’s growth strategy. Global Composites Restructuring In December 2023, the Company took actions to reduce costs throughout its global Composites segment given current market conditions, primarily through global workforce reductions, as well as streamlining manufacturing and supply chain operations. These actions primarily include salaried workforce reductions and the relocation of the Changzhou, China operations to Hangzhou, China. In connection with these actions, the Company estimates it will incur cash charges in the range of $20 million to $30 million, primarily related to severance and other exit costs, including termination costs, and non-cash charges in the range of $15 million to $20 million, primarily related to accelerated depreciation. During 2023, the Company recorded $16 million of charges, of which $4 million were non-cash charges, primarily related to accelerated depreciation and $12 million of cash charges, primarily related to severance. Building Materials Asia-Pacific Optimization In December 2023, the Company took actions to further its ongoing cost optimization strategy for the Insulation segment by permanently closing the Xi'an, China facility, which had previously ceased operations, and permanently closing one idled production line at the Guangde, China facility. These actions are expected to result in cumulative costs of approximately $20 million, primarily related to accelerated depreciation. During 2023, the Company recorded $18 million of charges primarily related to accelerated depreciation. The Company does not expect to recognize significant incremental costs related to these actions. Protective Packaging Exit In May 2023, the Company made the decision to exit the Protective Packaging business within the Roofing segment, including the production and sale of wood packaging, metal packaging and custom products. Exiting Protective Packaging will allow the Company to focus resources on the growth of its building materials products, which supports the future growth aspirations of the enterprise. With the exit of the Protective Packaging business, the Company closed its plants in Dorval, Quebec and Mission, British Columbia, Canada. The Company also ceased operations at its Qingdao, China facility. In connection with the exit of the Protective Packaging business, the Company estimates that it will incur cash charges of approximately $15 million, primarily related to severance and other exit costs. Additionally, the Company will incur total non-cash charges in the range of $70 to $75 million, primarily related to accelerated depreciation of property, plant and equipment and accelerated amortization of definite-lived intangibles. During 2023, the Company recorded $78 million of charges, of which $69 million were non-cash charges, primarily related to accelerated depreciation, amortization and inventory write-offs and $9 million of cash charges, primarily related to severance. Wabash Facility Closure In April 2023, the Company took actions to support its strategy to operate a flexible and cost-efficient manufacturing network through decisions to relocate the Wabash, Indiana mineral wool operations to Joplin, Missouri, and to exit the U.S. granulated mineral wool market. These actions are expected to result in cumulative costs of approximately $30 million, primarily related to severance and accelerated depreciation. During 2023, the Company recorded $33 million of charges, primarily related to accelerated depreciation, severance and other exit costs. The Company does not expect to recognize significant incremental costs related to these actions. European Operating Structure Optimization In March 2023, the Company took actions to optimize the operating structure of its segments across Europe to increase its competitiveness. These actions are expected to result in cumulative costs of approximately $20 million, primarily related to severance and other exit costs. During 2023, the Company recorded $12 million of charges primarily related to severance costs. Composites Strategic Realignment Actions On July 1, 2022, the Company finalized the sale of the European portion of the DUCS product line located in Chambéry, France, within the Company's Composites segment. The Company recorded a pre-tax charge of $30 million in Other expense (income), net on the Consolidated Statements of Earnings in 2022 to reflect the fair value less cost to sell the assets. The Company also took actions to convert the DUCS manufacturing facilities located in Anderson, South Carolina and Kimchon, Korea to produce other glass fiber products needed to support our growth strategy in building and construction applications. As a result, during 2023, the Company recorded $2 million of charges primarily related to other exit costs. The Company does not expect to recognize significant incremental costs related to these actions. Roofing Restructuring Actions In December 2021, the Company took actions to restructure operations within the Roofing segment's components product line by relocating production assets from China to India, which allowed the business to optimize its manufacturing network and support a tariff mitigation strategy. During 2023, the Company recorded $2 million of charges primarily related to other exit costs. The Company does not expect to recognize significant incremental charges related to these actions. Santa Clara Insulation Site During the third quarter of 2021, the Company entered into a sales agreement for the Company's Insulation site in Santa Clara, California as part of the Company's on-going strategy to operate a flexible, cost-efficient manufacturing network and geographically locate its assets to better serve its customers. On March 3, 2023, the Company finalized the sale of this site for total proceeds of $234 million, net of transaction fees. Total proceeds included a non-refundable deposit of $50 million received in the third quarter of 2021. During 2023, the Company recorded $6 million of charges, primarily related to other exit costs. The Company does not expect to recognize significant incremental costs related to this action. Consolidated Statements of Earnings Classification The following table presents the impact and respective location of total restructuring, acquisition and divestiture-related costs on the Consolidated Statements of Earnings, which are included within Corporate, Other and Eliminations (in millions): Twelve Months Ended December 31, Type of Cost Location 2023 2022 2021 Accelerated depreciation Cost of sales $ (76) $ (26) $ (13) Other exit (costs) gains Cost of sales (26) (16) (1) Recognition of acquisition inventory fair value step-up Cost of sales — — (1) Other exit (costs) gains Marketing and administrative expenses (2) — (2) Acquisition and divestiture-related (costs) gains Marketing and administrative expenses — (7) — Severance Other expense (income), net (34) (1) (11) Other exit (costs) gains Other expense (income), net (6) (41) 10 Accelerated amortization Other expense (income), net (25) — — Acquisition and divestiture-related (costs) gains Gain on equity method investment — 130 — Gain on sale of Santa Clara, California site Gain on sale of site 189 — — Other exit (costs) gains Non-operating expense (income), net — — (2) Total restructuring, acquisition and divestiture-related gains (costs) $ 20 $ 39 $ (20) Summary of Unpaid Liabilities The following tables summarize the status of the unpaid liabilities from the Company’s restructuring activities (in millions): December 31, 2023 Global Composites Restructuring Building Materials Asia-Pacific Optimization Protective Packaging Exit Wabash Facility Closure Balance at December 31, 2022 $ — $ — $ — $ — Restructuring costs 16 18 78 33 Payments — (1) (8) (4) Accelerated depreciation and other non-cash items (4) (17) (69) (26) Balance at December 31, 2023 $ 12 $ — $ 1 $ 3 Cumulative charges incurred $ 16 $ 18 $ 78 $ 33 December 31, 2023 (continued) European Operating Structure Optimization Composites Strategic Realignment Actions Roofing Restructuring Actions Santa Clara Insulation Site Balance at December 31, 2022 $ — $ 1 $ — $ 7 Restructuring costs 12 2 2 6 Payments (6) (3) (2) (12) Accelerated depreciation and other non-cash items — — — (1) Balance at December 31, 2023 $ 6 $ — $ — $ — Cumulative charges incurred $ 12 $ 11 $ 10 $ 66 As of December 31, 2023, the remaining liability balance is comprised of $22 million of severance, which the Company expects to pay over the next twelve months. December 31, 2022 Composites Strategic Realignment Actions Roofing Restructuring Actions Santa Clara Insulation Site 2020 Insulation Restructuring Actions Acquisition-Related Restructuring Balance at December 31, 2021 $ — $ 1 $ 13 $ 1 $ 5 Restructuring costs (gains) 9 3 35 2 (1) Payments (2) — (19) (1) (3) Accelerated depreciation and other non-cash items (6) (4) (22) (2) 1 Balance at December 31, 2022 $ 1 $ — $ 7 $ — $ 2 Cumulative charges incurred $ 9 $ 8 $ 60 $ 29 $ 26 As of December 31, 2022, the remaining liability balance is comprised of $11 million of severance, which the Company expects to pay over the next twelve months.

DEBT

DEBT	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
DEBT	DEBT Details of the Company’s outstanding long-term debt, as well as the fair values, are as follows (in millions): December 31, 2023 December 31, 2022 Carrying Value Fair Value Carrying Value Fair Value 4.200% senior notes, net of discount and financing fees, due 2024 $ 399 99 % $ 398 99 % 3.400% senior notes, net of discount and financing fees, due 2026 398 96 % 398 94 % 3.950% senior notes, net of discount and financing fees, due 2029 447 95 % 446 90 % 3.875% senior notes, net of discount and financing fees, due 2030 298 94 % 298 89 % 7.000% senior notes, net of discount and financing fees, due 2036 369 116 % 368 107 % 4.300% senior notes, net of discount and financing fees, due 2047 589 88 % 589 78 % 4.400% senior notes, net of discount and financing fees, due 2048 391 87 % 390 78 % Various finance leases, due through 2050 (a) 154 100 % 131 100 % Other 1 N/A 2 N/A Total long-term debt 3,046 N/A 3,020 N/A Less – current portion of senior notes 399 99 % — — % Less – current portion of other long-term debt (a) 32 100 % 28 100 % Long-term debt, net of current portion $ 2,615 N/A $ 2,992 N/A (a) The Company determined that the book value of the above noted long-term debt instruments approximates fair value. The fair values of the Company's outstanding long-term debt instruments were estimated using market observable inputs, including quoted prices in active markets, market indices and interest rate measurements. Within the hierarchy of fair value measurements, these are Level 2 fair values. Senior Notes The Company issued $300 million of 2030 senior notes on May 12, 2020. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on December 1, 2020. The proceeds from these notes were used for general corporate purposes. The Company issued $450 million of 2029 senior notes on August 12, 2019. Interest on the notes is payable semiannually in arrears on February 15 and August 15 each year, beginning on February 15, 2020. The proceeds from these notes were used to repay $416 million of our 2022 senior notes and $34 million of our 2036 senior notes. The Company issued $400 million of 2048 senior notes on January 25, 2018. Interest on the notes is payable semiannually in arrears on January 30 and July 30 each year, beginning on July 30, 2018. The proceeds from these notes were used, along with borrowings on a $600 million term loan commitment and borrowings on the Receivables Securitization Facility (as defined below), to fund the purchase of Paroc in the first quarter of 2018. The Company issued $600 million of 2047 senior notes on June 26, 2017. Interest on the notes is payable semiannually in arrears on January 15 and July 15 each year, beginning on January 15, 2018. A portion of the proceeds from these notes was used to fund the purchase of Pittsburgh Corning in 2017 and for general corporate purposes. The remaining proceeds were used to repay $144 million of our 2019 senior notes and $140 million of our 2036 senior notes. The Company issued $400 million of 2026 senior notes on August 8, 2016. Interest on the notes is payable semiannually in arrears on February 15 and August 15 each year, beginning on February 15, 2017. A portion of the proceeds from these notes was used to redeem $158 million of our 2016 senior notes. The remaining proceeds were used to pay down portions of our Receivables Securitization Facility and for general corporate purposes. The Company issued $400 million of 2024 senior notes on November 12, 2014. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on June 1, 2015. A portion of the proceeds from these notes was used to repay $242 million of our 2016 senior notes and $105 million of our 2019 senior notes. The remaining proceeds were used to pay down our Senior Revolving Credit Facility (as defined below), finance general working capital needs, and for general corporate purposes. As of December 31, 2023, the $399 million outstanding principal related to the senior notes was recorded in Long-term debt – current portion. The Company issued $600 million of 2022 senior notes on October 17, 2012. Interest on the notes was payable semiannually in arrears on June 15 and December 15 each year, beginning on June 15, 2013. The proceeds of these notes were used to repay $250 million of our 2016 senior notes and $100 million of our 2019 senior notes and pay down our Senior Revolving Credit Facility. On August 19, 2021, the Company issued a make-whole call to repay the remaining portion of its outstanding 2022 senior notes, and the redemption was completed in the third quarter of 2021. The Company recognized approximately $9 million of loss on extinguishment of debt in the third quarter of 2021 associated with these actions. The Company issued $550 million of 2036 senior notes on October 31, 2006. Interest on the notes is payable semiannually in arrears on June 1 and December 1 each year, beginning on June 1, 2007. The proceeds of these notes were used to pay certain unsecured and administrative claims, finance general working capital needs and for general corporate purposes. Collectively, the senior notes above are referred to as the “Senior Notes.” The Senior Notes are general unsecured obligations of the Company and rank pari passu with all existing and future senior unsecured indebtedness of the Company. The Company has the option to redeem all or part of the Senior Notes at any time at a “make-whole” redemption price. The Company is subject to certain covenants in connection with the issuance of the Senior Notes that it believes are usual and customary. The Company was in compliance with these covenants as of December 31, 2023. Senior Revolving Credit Facility The Company has an $800 million senior revolving credit facility (the “Senior Revolving Credit Facility”) with a maturity date in July 2026 that includes both borrowings and letters of credit. Borrowings under the Senior Revolving Credit Facility may be used for general corporate purposes and working capital. The Company has the discretion to borrow under multiple options, which provide for varying terms and interest rates including the United States prime rate, federal funds rate plus a spread or the Secured Overnight Financing Rate (“Term SOFR”) plus a spread. The Senior Revolving Credit Facility contains various covenants, including a maximum allowed leverage ratio, that the Company believes are usual and customary for a senior unsecured credit agreement. The Company was in compliance with these covenants as of December 31, 2023. Please refer to the Credit Facility Utilization section below for liquidity information as of December 31, 2023. In May 2023, the Senior Revolving Credit Facility was amended to formally adopt Term SOFR plus a spread as the benchmark reference rate in anticipation of the June 30, 2023 discontinuation of the London Interbank Offered Rate (“LIBOR”). Receivables Securitization Facility The Company has a Receivables Purchase Agreement (“RPA”) that is accounted for as secured borrowings in accordance with ASC 860, “Accounting for Transfers and Servicing.” Owens Corning Sales, LLC and Owens Corning Receivables LLC, each a subsidiary of the Company, have a $280 million RPA with certain financial institutions. The Company has the ability to borrow at the lenders' cost of funds, which approximates A-1/P-1 commercial paper rates vs. Term SOFR plus a spread. As of the June 30, 2023 discontinuation of LIBOR, fallback language in the RPA took effect to transition the facility to Term SOFR plus a spread. The RPA has been amended from time to time, with a maturity date in April 2024. The RPA contains various covenants, including a maximum allowed leverage ratio, that the Company believes are usual and customary for a securitization facility. The Company was in compliance with these covenants as of December 31, 2023. Please refer to the Credit Facility Utilization section below for liquidity information as of December 31, 2023. Owens Corning Receivables LLC’s sole business consists of the purchase or acceptance through capital contributions of trade receivables and related rights from Owens Corning Sales, LLC and the subsequent retransfer of or granting of a security interest in such trade receivables and related rights to certain purchasers who are party to the RPA. Owens Corning Receivables LLC is a separate legal entity with its own separate creditors who will be entitled, upon its liquidation, to be satisfied out of Owens Corning Receivables LLC’s assets prior to any assets or value in Owens Corning Receivables LLC becoming available to Owens Corning Receivables LLC’s equity holders. The assets of Owens Corning Receivables LLC are not available to pay creditors of the Company or any other affiliates of the Company or Owens Corning Sales, LLC. Credit Facility Utilization The following table shows how the Company utilized its primary sources of liquidity (in millions): Balance at December 31, 2023 Senior Revolving Credit Facility Receivables Securitization Facility Facility size $ 800 $ 280 Collateral capacity limitation on availability N/A — Outstanding borrowings — — Outstanding letters of credit 4 1 Availability on facility $ 796 $ 279 Debt Maturities The aggregate maturities for all outstanding long-term debt borrowings for each of the five years following December 31, 2023 and thereafter are presented in the table below (in millions). The maturities below are the aggregate par amounts of the outstanding senior notes and finance lease liabilities: Period Maturities 2024 $ 432 2025 24 2026 416 2027 10 2028 7 2029 and beyond 2,191 Total $ 3,080 Short-Term Debt At December 31, 2023 and December 31, 2022, short-term borrowings were $1 million. The short-term borrowings for both periods consisted of various operating lines of credit. The weighted average interest rate on all short-term borrowings was approximately 5.1% and 2.8% for December 31, 2023 and December 31, 2022, respectively.

PENSION PLANS

PENSION PLANS	12 Months Ended
	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
PENSION PLANS	PENSION PLANS Pension Plans The Company sponsors defined benefit pension plans. Under the plans, pension benefits are based on an employee’s years of service and, for certain categories of employees, qualifying compensation. Company contributions to these pension plans are determined by an independent actuary to meet or exceed minimum funding requirements. In our U.S. plan, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average remaining life expectancy of inactive participants. In all of our Non-U.S. plans, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average future service period of plan participants expected to receive benefits. During the fourth quarter of 2023, the Company entered into two agreements to purchase non-participating annuity contracts from insurance companies to transfer $291 million of the Company's outstanding pension projected benefit obligation (“PBO”) related to certain U.S. and non-U.S. pension plans. These transactions were funded with pension plan assets of $268 million. As a result of these transactions, the Company recognized a pre-tax settlement charge of $145 million in the fourth quarter of 2023 from the accelerated recognition of a pro rata portion of plan actuarial losses. This charge was recorded in Non-operating expense (income), net The following tables provide a reconciliation of the change in the projected benefit obligation, the change in plan assets and the net amount recognized in the Consolidated Balance Sheets (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 638 $ 326 $ 964 $ 841 $ 476 $ 1,317 Service cost 3 3 6 5 4 9 Interest cost 29 16 45 23 11 34 Actuarial (gain) loss (21) 9 (12) (174) (103) (277) Currency loss (gain) — 11 11 — (38) (38) Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Other — 1 1 1 (2) (1) Benefit obligation at end of period $ 366 $ 304 $ 670 $ 638 $ 326 $ 964 December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Plan Assets Fair value of assets at beginning of period $ 602 $ 302 $ 904 $ 816 $ 443 $ 1,259 Actual return on plan assets 22 14 36 (156) (92) (248) Currency gain (loss) — 9 9 — (35) (35) Company contributions — 18 18 — 8 8 Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Fair value of assets at end of period 341 281 622 602 302 904 Funded status $ (25) $ (23) $ (48) $ (36) $ (24) $ (60) The following table presents the amount recorded and respective location in the Consolidated Balance sheets (in millions): December 31, 2023 December 31, 2022 Location U.S. Non-U.S. Total U.S. Non-U.S. Total Prepaid pension cost Other non-current assets $ — $ 23 $ 23 $ — $ 21 $ 21 Accrued pension cost – current Other current liabilities — (2) (2) (1) (2) (3) Accrued pension cost – non-current Pension plan liability (25) (44) (69) (35) (43) (78) Total amount recorded $ (25) $ (23) $ (48) $ (36) $ (24) $ (60) The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (191) $ (74) $ (265) $ (340) $ (72) $ (412) Net prior service cost — (5) (5) — (5) (5) Total amount recorded $ (191) $ (79) $ (270) $ (340) $ (77) $ (417) For the year ended December 31, 2023, the actuarial gain of $12 million was largely the result of the impacts related to the annuity purchase settlement offset by losses due to decreased discount rates. In the U.S. plan, the actuarial gain was primarily driven by the settling of the annuity purchase at a lower value relative to the PBO held at the time. The gain was slightly offset by an actuarial loss due to the decrease in the discount rate. In the Non-U.S. plans, the actuarial loss was primarily driven by a decrease in the discount rates across all the plans. For the year ended December 31, 2022, the actuarial gain of $277 million was largely the result of increases in discount rates across all plans. In the U.S. plan, the actuarial gain was primarily driven by the increase in the discount rate. The gain was slightly offset by the unfavorable impact of differences between expected and actual pension experience. In the Non-U.S. plans, the actuarial gain was driven by an increase in the discount rate of the U.K. and Canada plans, partially offset by the unfavorable impact of differences between expected and actual pension experience. The following table presents information about the projected benefit obligation, accumulated benefit obligation (“ABO”) and plan assets of the Company’s pension plans (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Plans with PBO in excess of fair value of plan assets: Projected benefit obligation $ 366 $ 221 $ 587 $ 638 $ 208 $ 846 Fair value of plan assets $ 341 $ 174 $ 515 $ 602 $ 163 $ 765 Plans with ABO in excess of fair value of plan assets: Accumulated benefit obligation $ 366 $ 203 $ 569 $ 638 $ 192 $ 830 Fair value of plan assets $ 341 $ 164 $ 505 $ 602 $ 153 $ 755 Weighted-Average Assumptions Used to Determine Benefit Obligation The following table presents weighted average assumptions used to determine benefit obligations at the measurement dates: December 31, 2023 2022 United States Plans Discount rate 5.00 % 5.15 % Cash balance interest crediting rate 4.63 % 3.77 % Non-United States Plans Discount rate 4.62 % 5.02 % Rate of compensation increase 3.25 % 3.31 % Components of Net Periodic Pension Cost The following table presents the components of net periodic pension cost (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States Plans Service cost $ 3 $ 5 $ 5 Interest cost 29 23 22 Expected return on plan assets (37) (36) (36) Amortization of actuarial loss 5 11 12 Settlement/curtailment 138 — — Other — — 2 Net periodic pension cost $ 138 $ 3 $ 5 Non-United States Plans Service cost $ 3 $ 4 $ 6 Interest cost 16 11 9 Expected return on plan assets (15) (16) (18) Amortization of actuarial loss 3 2 4 Settlement/curtailment 7 (1) — Other 1 — — Net periodic pension cost $ 15 $ — $ 1 Total Service cost $ 6 $ 9 $ 11 Interest cost 45 34 31 Expected return on plan assets (52) (52) (54) Amortization of actuarial loss 8 13 16 Settlement/curtailment 145 (1) — Other 1 — 2 Net periodic pension cost $ 153 $ 3 $ 6 Weighted-Average Assumptions Used to Determine Net Periodic Pension Cost The following table presents weighted-average assumptions used to determine net periodic pension costs for the periods noted: Twelve Months Ended December 31, 2023 2022 2021 United States Plans Discount rate 5.15 % 2.85 % 2.50 % Expected return on plan assets 5.75 % 4.75 % 4.75 % Cash balance interest crediting rate 3.76 % 1.26 % 0.79 % Rate of compensation increase N/A (a) N/A (a) N/A (a) Non-United States Plans Discount rate 5.02 % 2.35 % 1.73 % Expected return on plan assets 5.00 % 3.93 % 4.08 % Rate of compensation increase 3.31 % 3.31 % 3.00 % (a) Not applicable due to changes in plan made on August 1, 2009 that were effective beginning January 1, 2010. The expected return on plan assets assumption is derived by taking into consideration the target plan asset allocation, historical rates of return on those assets, projected future asset class returns and net outperformance of the market by active investment managers. An asset return model is used to develop an expected range of returns on plan investments over a 30 year period, with the expected rate of return selected from a best estimate range within the total range of projected results. The result is then rounded down to the nearest 25 basis points. Items Measured at Fair Value The Company classifies and discloses pension plan assets in one of the following three categories: Level 1: Quoted market prices in active markets for identical assets. Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data. Level 3: Unobservable inputs that are not corroborated by market data. Plan Assets The tables in this section show pension plan asset fair values and fair value leveling information. The assets are categorized into one of the three levels of the fair value hierarchy or are not subject to leveling, in the case of investments that are valued using the net asset value per share (or its equivalent) practical expedient (“NAV”). The following tables summarize the fair values and applicable fair value hierarchy levels of United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ — $ — $ — $ — Fixed income and cash equivalents: Corporate bonds 12 82 — 94 Government debt — 20 — 20 Total United States plan assets subject to leveling $ 12 $ 102 $ — 114 Plan assets measured at NAV: Equities 69 Real assets 11 Fixed income and cash equivalents 110 Absolute return strategies 37 Total United States plan assets $ 341 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ 39 $ — $ — $ 39 Fixed income and cash equivalents: Corporate bonds 26 230 — 256 Government debt — 58 — 58 Total United States plan assets subject to leveling $ 65 $ 288 $ — 353 Plan assets measured at NAV: Equities 95 Real assets 25 Fixed income and cash equivalents 87 Absolute return strategies 42 Total United States plan assets $ 602 The following tables summarize the fair values and applicable fair value hierarchy levels of non-United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 57 — 57 Fixed income — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 69 $ — 69 Plan assets measured at NAV: Equities 28 Fixed income and cash equivalents 122 Absolute return strategies and other 62 Total non-United States plan assets $ 281 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 56 — 56 Corporate bonds — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 68 $ — 68 Plan assets measured at NAV: Equities 22 Fixed income and cash equivalents 127 Absolute return strategies 85 Total non-United States plan assets $ 302 Investment Strategy The current targeted asset allocation for the United States pension plan is to have 23% of assets invested in equities, 70% in intermediate and long-term fixed income securities, high yield and cash and 7% in other strategies. Assets are rebalanced at least quarterly to conform to policy tolerances. The Company actively evaluates the reasonableness of its asset mix given changes in the projected benefit obligation and market dynamics. Our investment policy and asset mix for the non-United States pension plans varies by location and is based on projected benefit obligation and market dynamics. Estimated Future Benefit Payments The following table shows estimated future benefit payments from the Company’s pension plans (in millions): Year Estimated Benefit Payments 2024 $ 47 2025 $ 47 2026 $ 49 2027 $ 46 2028 $ 48 2029-2033 $ 246 Contributions The Company expects to contribute $20 million in cash to its defined benefit pension plans during 2024. Actual contributions to the plans may change as a result of a variety of factors, including changes in laws that impact funding requirements. Defined Contribution Plans The Company sponsors two defined contribution plans which are available to substantially all United States employees. The Company matches a percentage of employee contributions up to a maximum level and contributes up to 2% of an employee’s wages regardless of employee contributions. The Company recognized expense of $65 million, $57 million and $52 million during the years ended December 31, 2023, 2022 and 2021, respectively, related to these plans. The Company maintains health care and life insurance benefit plans for certain retired employees and their dependents. The health care plans in the United States are non-funded and pay either (1) stated percentages of covered medically necessary expenses, after subtracting payments by Medicare or other providers and after stated deductibles have been met, or (2) fixed amounts of medical expense reimbursement. Employees hired on or before December 31, 2005 become eligible to participate in the United States health care plans upon retirement if they have accumulated 10 years of service after age 45, 48 or 50, depending on the category of employee. For employees hired after December 31, 2005, the Company does not provide subsidized retiree health care. Some of the plans are contributory, with some retiree contributions adjusted annually. The Company has reserved the right to change or eliminate these benefit plans subject to the terms of collective bargaining agreements. The following table provides a reconciliation of the change in the projected benefit obligation and the net amount recognized in the Consolidated Balance Sheets for the years ended December 31, 2023 and 2022 (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 115 $ 10 $ 125 $ 151 $ 13 $ 164 Service cost 1 — 1 1 — 1 Interest cost 5 1 6 4 — 4 Actuarial gain (2) — (2) (30) (2) (32) Currency gain — — — — (1) (1) Benefits paid (11) — (11) (11) — (11) Benefit obligation at end of period $ 108 $ 11 $ 119 $ 115 $ 10 $ 125 Funded status $ (108) $ (11) $ (119) $ (115) $ (10) $ (125) The following table presents the amount recorded and respective location in the Consolidated Balance sheet (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Location Accrued benefit obligation – current Other current liabilities $ (11) $ (1) $ (12) $ (11) $ (1) $ (12) Accrued benefit obligation – non-current Other employee benefits liability (97) (10) (107) (104) (9) (113) Net amount recorded $ (108) $ (11) $ (119) $ (115) $ (10) $ (125) The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial (loss) gain $ (54) $ (4) $ (58) $ 60 $ 5 $ 65 Net prior service credit — — — — — — Total amount recorded $ (54) $ (4) $ (58) $ 60 $ 5 $ 65 Weighted-Average Assumptions Used to Determine Benefit Obligations December 31, 2023 2022 United States plans Discount rate 4.90 % 5.10 % Rate of compensation increase N/A N/A Non-United States plans Discount rate 5.64 % 5.93 % Rate of compensation increase 3.00 % 3.00 % Components of Net Periodic Postretirement Benefit Income The following table presents the components of net periodic postretirement benefit income (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States plans Service cost $ 1 $ 1 $ 1 Interest cost 5 4 4 Amortization of prior service credit — — (1) Amortization of actuarial loss (8) (7) (8) Net periodic postretirement benefit income $ (2) $ (2) $ (4) Weighted-Average Assumptions Used to Determine Net Periodic Postretirement Benefit Income The following table presents the discount rates used to determine net periodic postretirement benefit income: Twelve Months Ended December 31, 2023 2022 2021 United States plans 5.10 % 2.70 % 2.25 % Non-United States plans 5.93 % 3.63 % 3.04 % The following table presents health care cost trend rates used to determine net periodic postretirement benefit income, as well as information regarding the ultimate rate and the year in which the ultimate rate is reached: Twelve Months Ended December 31, 2023 2022 2021 United States plans: Initial rate at end of year 11.27 % 8.86 % 8.10 % Ultimate rate 4.50 % 4.50 % 4.50 % Year in which ultimate rate is reached 2033 2031 2029 Non-United States plans: Initial rate at end of year 4.97 % 4.65 % 4.25 % Ultimate rate 4.31 % 4.13 % 3.87 % Year in which ultimate rate is reached 2037 2040 2040 Estimated Future Benefit Payments The following table shows estimated future benefit payments from the Company’s postretirement benefit plans (in millions): Year Estimated Benefit Payments 2024 $ 12 2025 $ 12 2026 $ 11 2027 $ 11 2028 $ 11 2029-2033 $ 46 Postemployment Benefits The Company may also provide benefits to former or inactive employees after employment but before retirement under certain conditions. These benefits include continuation of benefits such as health care and life insurance coverage. The accrued postemployment benefits liability was $5 million at December 31, 2023 and 2022. The net periodic postemployment benefit expense/(income) for the years ended December 31, 2023, 2022 and 2021 were less than $1 million, less than $1 million and less than $(1) million, respectively.

POSTEMPLOYMENT AND POSTRETIREME

POSTEMPLOYMENT AND POSTRETIREMENT BENEFITS OTHER THAN PENSIONS	12 Months Ended
	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
POSTEMPLOYMENT AND POSTRETIREMENT BENEFITS OTHER THAN PENSIONS	PENSION PLANS Pension Plans The Company sponsors defined benefit pension plans. Under the plans, pension benefits are based on an employee’s years of service and, for certain categories of employees, qualifying compensation. Company contributions to these pension plans are determined by an independent actuary to meet or exceed minimum funding requirements. In our U.S. plan, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average remaining life expectancy of inactive participants. In all of our Non-U.S. plans, the unrecognized cost of any retroactive amendments and actuarial gains and losses are amortized over the average future service period of plan participants expected to receive benefits. During the fourth quarter of 2023, the Company entered into two agreements to purchase non-participating annuity contracts from insurance companies to transfer $291 million of the Company's outstanding pension projected benefit obligation (“PBO”) related to certain U.S. and non-U.S. pension plans. These transactions were funded with pension plan assets of $268 million. As a result of these transactions, the Company recognized a pre-tax settlement charge of $145 million in the fourth quarter of 2023 from the accelerated recognition of a pro rata portion of plan actuarial losses. This charge was recorded in Non-operating expense (income), net The following tables provide a reconciliation of the change in the projected benefit obligation, the change in plan assets and the net amount recognized in the Consolidated Balance Sheets (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 638 $ 326 $ 964 $ 841 $ 476 $ 1,317 Service cost 3 3 6 5 4 9 Interest cost 29 16 45 23 11 34 Actuarial (gain) loss (21) 9 (12) (174) (103) (277) Currency loss (gain) — 11 11 — (38) (38) Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Other — 1 1 1 (2) (1) Benefit obligation at end of period $ 366 $ 304 $ 670 $ 638 $ 326 $ 964 December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Plan Assets Fair value of assets at beginning of period $ 602 $ 302 $ 904 $ 816 $ 443 $ 1,259 Actual return on plan assets 22 14 36 (156) (92) (248) Currency gain (loss) — 9 9 — (35) (35) Company contributions — 18 18 — 8 8 Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Fair value of assets at end of period 341 281 622 602 302 904 Funded status $ (25) $ (23) $ (48) $ (36) $ (24) $ (60) The following table presents the amount recorded and respective location in the Consolidated Balance sheets (in millions): December 31, 2023 December 31, 2022 Location U.S. Non-U.S. Total U.S. Non-U.S. Total Prepaid pension cost Other non-current assets $ — $ 23 $ 23 $ — $ 21 $ 21 Accrued pension cost – current Other current liabilities — (2) (2) (1) (2) (3) Accrued pension cost – non-current Pension plan liability (25) (44) (69) (35) (43) (78) Total amount recorded $ (25) $ (23) $ (48) $ (36) $ (24) $ (60) The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (191) $ (74) $ (265) $ (340) $ (72) $ (412) Net prior service cost — (5) (5) — (5) (5) Total amount recorded $ (191) $ (79) $ (270) $ (340) $ (77) $ (417) For the year ended December 31, 2023, the actuarial gain of $12 million was largely the result of the impacts related to the annuity purchase settlement offset by losses due to decreased discount rates. In the U.S. plan, the actuarial gain was primarily driven by the settling of the annuity purchase at a lower value relative to the PBO held at the time. The gain was slightly offset by an actuarial loss due to the decrease in the discount rate. In the Non-U.S. plans, the actuarial loss was primarily driven by a decrease in the discount rates across all the plans. For the year ended December 31, 2022, the actuarial gain of $277 million was largely the result of increases in discount rates across all plans. In the U.S. plan, the actuarial gain was primarily driven by the increase in the discount rate. The gain was slightly offset by the unfavorable impact of differences between expected and actual pension experience. In the Non-U.S. plans, the actuarial gain was driven by an increase in the discount rate of the U.K. and Canada plans, partially offset by the unfavorable impact of differences between expected and actual pension experience. The following table presents information about the projected benefit obligation, accumulated benefit obligation (“ABO”) and plan assets of the Company’s pension plans (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Plans with PBO in excess of fair value of plan assets: Projected benefit obligation $ 366 $ 221 $ 587 $ 638 $ 208 $ 846 Fair value of plan assets $ 341 $ 174 $ 515 $ 602 $ 163 $ 765 Plans with ABO in excess of fair value of plan assets: Accumulated benefit obligation $ 366 $ 203 $ 569 $ 638 $ 192 $ 830 Fair value of plan assets $ 341 $ 164 $ 505 $ 602 $ 153 $ 755 Weighted-Average Assumptions Used to Determine Benefit Obligation The following table presents weighted average assumptions used to determine benefit obligations at the measurement dates: December 31, 2023 2022 United States Plans Discount rate 5.00 % 5.15 % Cash balance interest crediting rate 4.63 % 3.77 % Non-United States Plans Discount rate 4.62 % 5.02 % Rate of compensation increase 3.25 % 3.31 % Components of Net Periodic Pension Cost The following table presents the components of net periodic pension cost (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States Plans Service cost $ 3 $ 5 $ 5 Interest cost 29 23 22 Expected return on plan assets (37) (36) (36) Amortization of actuarial loss 5 11 12 Settlement/curtailment 138 — — Other — — 2 Net periodic pension cost $ 138 $ 3 $ 5 Non-United States Plans Service cost $ 3 $ 4 $ 6 Interest cost 16 11 9 Expected return on plan assets (15) (16) (18) Amortization of actuarial loss 3 2 4 Settlement/curtailment 7 (1) — Other 1 — — Net periodic pension cost $ 15 $ — $ 1 Total Service cost $ 6 $ 9 $ 11 Interest cost 45 34 31 Expected return on plan assets (52) (52) (54) Amortization of actuarial loss 8 13 16 Settlement/curtailment 145 (1) — Other 1 — 2 Net periodic pension cost $ 153 $ 3 $ 6 Weighted-Average Assumptions Used to Determine Net Periodic Pension Cost The following table presents weighted-average assumptions used to determine net periodic pension costs for the periods noted: Twelve Months Ended December 31, 2023 2022 2021 United States Plans Discount rate 5.15 % 2.85 % 2.50 % Expected return on plan assets 5.75 % 4.75 % 4.75 % Cash balance interest crediting rate 3.76 % 1.26 % 0.79 % Rate of compensation increase N/A (a) N/A (a) N/A (a) Non-United States Plans Discount rate 5.02 % 2.35 % 1.73 % Expected return on plan assets 5.00 % 3.93 % 4.08 % Rate of compensation increase 3.31 % 3.31 % 3.00 % (a) Not applicable due to changes in plan made on August 1, 2009 that were effective beginning January 1, 2010. The expected return on plan assets assumption is derived by taking into consideration the target plan asset allocation, historical rates of return on those assets, projected future asset class returns and net outperformance of the market by active investment managers. An asset return model is used to develop an expected range of returns on plan investments over a 30 year period, with the expected rate of return selected from a best estimate range within the total range of projected results. The result is then rounded down to the nearest 25 basis points. Items Measured at Fair Value The Company classifies and discloses pension plan assets in one of the following three categories: Level 1: Quoted market prices in active markets for identical assets. Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data. Level 3: Unobservable inputs that are not corroborated by market data. Plan Assets The tables in this section show pension plan asset fair values and fair value leveling information. The assets are categorized into one of the three levels of the fair value hierarchy or are not subject to leveling, in the case of investments that are valued using the net asset value per share (or its equivalent) practical expedient (“NAV”). The following tables summarize the fair values and applicable fair value hierarchy levels of United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ — $ — $ — $ — Fixed income and cash equivalents: Corporate bonds 12 82 — 94 Government debt — 20 — 20 Total United States plan assets subject to leveling $ 12 $ 102 $ — 114 Plan assets measured at NAV: Equities 69 Real assets 11 Fixed income and cash equivalents 110 Absolute return strategies 37 Total United States plan assets $ 341 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ 39 $ — $ — $ 39 Fixed income and cash equivalents: Corporate bonds 26 230 — 256 Government debt — 58 — 58 Total United States plan assets subject to leveling $ 65 $ 288 $ — 353 Plan assets measured at NAV: Equities 95 Real assets 25 Fixed income and cash equivalents 87 Absolute return strategies 42 Total United States plan assets $ 602 The following tables summarize the fair values and applicable fair value hierarchy levels of non-United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 57 — 57 Fixed income — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 69 $ — 69 Plan assets measured at NAV: Equities 28 Fixed income and cash equivalents 122 Absolute return strategies and other 62 Total non-United States plan assets $ 281 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 56 — 56 Corporate bonds — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 68 $ — 68 Plan assets measured at NAV: Equities 22 Fixed income and cash equivalents 127 Absolute return strategies 85 Total non-United States plan assets $ 302 Investment Strategy The current targeted asset allocation for the United States pension plan is to have 23% of assets invested in equities, 70% in intermediate and long-term fixed income securities, high yield and cash and 7% in other strategies. Assets are rebalanced at least quarterly to conform to policy tolerances. The Company actively evaluates the reasonableness of its asset mix given changes in the projected benefit obligation and market dynamics. Our investment policy and asset mix for the non-United States pension plans varies by location and is based on projected benefit obligation and market dynamics. Estimated Future Benefit Payments The following table shows estimated future benefit payments from the Company’s pension plans (in millions): Year Estimated Benefit Payments 2024 $ 47 2025 $ 47 2026 $ 49 2027 $ 46 2028 $ 48 2029-2033 $ 246 Contributions The Company expects to contribute $20 million in cash to its defined benefit pension plans during 2024. Actual contributions to the plans may change as a result of a variety of factors, including changes in laws that impact funding requirements. Defined Contribution Plans The Company sponsors two defined contribution plans which are available to substantially all United States employees. The Company matches a percentage of employee contributions up to a maximum level and contributes up to 2% of an employee’s wages regardless of employee contributions. The Company recognized expense of $65 million, $57 million and $52 million during the years ended December 31, 2023, 2022 and 2021, respectively, related to these plans. The Company maintains health care and life insurance benefit plans for certain retired employees and their dependents. The health care plans in the United States are non-funded and pay either (1) stated percentages of covered medically necessary expenses, after subtracting payments by Medicare or other providers and after stated deductibles have been met, or (2) fixed amounts of medical expense reimbursement. Employees hired on or before December 31, 2005 become eligible to participate in the United States health care plans upon retirement if they have accumulated 10 years of service after age 45, 48 or 50, depending on the category of employee. For employees hired after December 31, 2005, the Company does not provide subsidized retiree health care. Some of the plans are contributory, with some retiree contributions adjusted annually. The Company has reserved the right to change or eliminate these benefit plans subject to the terms of collective bargaining agreements. The following table provides a reconciliation of the change in the projected benefit obligation and the net amount recognized in the Consolidated Balance Sheets for the years ended December 31, 2023 and 2022 (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 115 $ 10 $ 125 $ 151 $ 13 $ 164 Service cost 1 — 1 1 — 1 Interest cost 5 1 6 4 — 4 Actuarial gain (2) — (2) (30) (2) (32) Currency gain — — — — (1) (1) Benefits paid (11) — (11) (11) — (11) Benefit obligation at end of period $ 108 $ 11 $ 119 $ 115 $ 10 $ 125 Funded status $ (108) $ (11) $ (119) $ (115) $ (10) $ (125) The following table presents the amount recorded and respective location in the Consolidated Balance sheet (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Location Accrued benefit obligation – current Other current liabilities $ (11) $ (1) $ (12) $ (11) $ (1) $ (12) Accrued benefit obligation – non-current Other employee benefits liability (97) (10) (107) (104) (9) (113) Net amount recorded $ (108) $ (11) $ (119) $ (115) $ (10) $ (125) The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial (loss) gain $ (54) $ (4) $ (58) $ 60 $ 5 $ 65 Net prior service credit — — — — — — Total amount recorded $ (54) $ (4) $ (58) $ 60 $ 5 $ 65 Weighted-Average Assumptions Used to Determine Benefit Obligations December 31, 2023 2022 United States plans Discount rate 4.90 % 5.10 % Rate of compensation increase N/A N/A Non-United States plans Discount rate 5.64 % 5.93 % Rate of compensation increase 3.00 % 3.00 % Components of Net Periodic Postretirement Benefit Income The following table presents the components of net periodic postretirement benefit income (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States plans Service cost $ 1 $ 1 $ 1 Interest cost 5 4 4 Amortization of prior service credit — — (1) Amortization of actuarial loss (8) (7) (8) Net periodic postretirement benefit income $ (2) $ (2) $ (4) Weighted-Average Assumptions Used to Determine Net Periodic Postretirement Benefit Income The following table presents the discount rates used to determine net periodic postretirement benefit income: Twelve Months Ended December 31, 2023 2022 2021 United States plans 5.10 % 2.70 % 2.25 % Non-United States plans 5.93 % 3.63 % 3.04 % The following table presents health care cost trend rates used to determine net periodic postretirement benefit income, as well as information regarding the ultimate rate and the year in which the ultimate rate is reached: Twelve Months Ended December 31, 2023 2022 2021 United States plans: Initial rate at end of year 11.27 % 8.86 % 8.10 % Ultimate rate 4.50 % 4.50 % 4.50 % Year in which ultimate rate is reached 2033 2031 2029 Non-United States plans: Initial rate at end of year 4.97 % 4.65 % 4.25 % Ultimate rate 4.31 % 4.13 % 3.87 % Year in which ultimate rate is reached 2037 2040 2040 Estimated Future Benefit Payments The following table shows estimated future benefit payments from the Company’s postretirement benefit plans (in millions): Year Estimated Benefit Payments 2024 $ 12 2025 $ 12 2026 $ 11 2027 $ 11 2028 $ 11 2029-2033 $ 46 Postemployment Benefits The Company may also provide benefits to former or inactive employees after employment but before retirement under certain conditions. These benefits include continuation of benefits such as health care and life insurance coverage. The accrued postemployment benefits liability was $5 million at December 31, 2023 and 2022. The net periodic postemployment benefit expense/(income) for the years ended December 31, 2023, 2022 and 2021 were less than $1 million, less than $1 million and less than $(1) million, respectively.

CONTINGENT LIABILITIES AND OTHE

CONTINGENT LIABILITIES AND OTHER MATTERS	12 Months Ended
	Dec. 31, 2023
Loss Contingency [Abstract]
CONTINGENT LIABILITIES AND OTHER MATTERS	CONTINGENT LIABILITIES AND OTHER MATTERS The Company may be involved in various legal and regulatory proceedings relating to employment, antitrust, tax, product liability, environmental, contracts, intellectual property and other matters (collectively, “Proceedings”). The Company regularly reviews the status of such Proceedings along with legal counsel. Liabilities for such Proceedings are recorded when it is probable that the liability has been incurred and when the amount of the liability can be reasonably estimated. Liabilities are adjusted when additional information becomes available. Management believes that the amount of any reasonably possible losses in excess of any amounts accrued, if any, with respect to such Proceedings or any other known claim, including the matters described below under the caption Environmental Matters (the “Environmental Matters”), are not material to the Company’s financial statements. Management believes that the ultimate disposition of the Proceedings and the Environmental Matters will not have a material adverse effect on the Company’s financial condition. While the likelihood is remote, the disposition of the Proceedings and Environmental Matters could have a material impact on the results of operations, cash flows or liquidity in any given reporting period. Litigation and Regulatory Proceedings The Company is involved in litigation and regulatory proceedings from time to time in the regular course of its business. The Company believes that adequate provisions for resolution of all contingencies, claims and pending matters have been made for probable losses that are reasonably estimable. During the second quarter of 2023, the Company's subsidiary, Paroc Group OY (“Paroc”), which the Company acquired in 2018, notified the appropriate European maritime regulatory authorities that specific products in its marine insulation product line may not meet certain fire safety requirements in accordance with their certifications. Paroc voluntarily withdrew these specific products from the market, issued recalls, and suspended distribution and sales of these products. Paroc continues to cooperate with the applicable regulatory and government authorities and work with its customers and end-users to assist with remediation. During 2023, the Company established an estimated liability for expected future costs related to the marine recall on our Consolidated Balance Sheet as of December 31, 2023. The estimated liability is primarily based on assumptions related to the estimated costs of the remedy for the recall. We will reevaluate these assumptions each period, and the related liability may be adjusted when factors indicate that the liability is either not sufficient to cover or exceeds the estimated product recall costs. Based on the factors currently known, we believe the appropriate liability has been established at this time. It is reasonably possible that additional product recall costs could be incurred that exceed the estimated liability by amounts that could be material to our consolidated financial statements. As part of its review of the Paroc insulation product portfolio, the Company discovered potential nonconformances relating to certain ventilation duct insulation products. In January 2024, Paroc suspended sales of the affected insulation products as a precautionary measure while it reviews the potential nonconformances. The Company is continuing its review. Environmental Matters The Company has established policies and procedures designed to ensure that its operations are conducted in compliance with all relevant laws and regulations and that enable the Company to meet its high standards for corporate sustainability and environmental stewardship. Our manufacturing facilities are subject to numerous foreign, federal, state and local laws and regulations relating to the presence of hazardous materials, pollution and protection of the environment, including emissions to air, reductions of greenhouse gases, discharges to water, management of hazardous materials, handling and disposal of solid wastes, use of chemicals in our manufacturing processes, and remediation of contaminated sites. All Company manufacturing facilities are either ISO 14001 certified or deploy environmental management systems based on ISO 14001 principles. The Company’s 2030 Sustainability Goals include targets related to significant global reductions in energy use, water consumption, waste to landfill, and emissions of greenhouse gases, fine particulate matter, and volatile organic air emissions, and protection of biodiversity. Owens Corning is involved in remedial response activities and is responsible for environmental remediation at a number of sites, including certain of its currently owned or formerly owned plants. These responsibilities arise under a number of laws, including, but not limited to, the Federal Resource Conservation and Recovery Act, and similar state or local laws pertaining to the management and remediation of hazardous materials and petroleum. The Company has also been named a potentially responsible party under the U.S. Federal Superfund law, or state equivalents, at a number of disposal sites. The Company became involved in these sites as a result of government action or in connection with business acquisitions. As of December 31, 2023, the Company was involved with a total of 22 sites worldwide, including 10 Superfund and state or country equivalent sites and 12 owned or formerly owned sites. None of the liabilities for these sites are individually significant to the Company.

STOCK COMPENSATION

STOCK COMPENSATION	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
STOCK COMPENSATION	STOCK COMPENSATION Description of the Plan On April 20, 2023, the Company's stockholders approved the Owens Corning 2023 Stock Plan (the “2023 Stock Plan”) which authorizes grants of stock options, stock appreciation rights, stock awards (including restricted stock awards, restricted stock units and bonus stock awards), performance share awards and performance share units. At December 31, 2023, the number of shares remaining available under the 2023 Stock Plan for all stock awards was 3.4 million. Prior to the 2023 Stock Plan, employees were eligible to receive stock awards under the Owens Corning 2019 Stock Plan. Total Stock-Based Compensation Expense Stock-based compensation expense included in Marketing and administrative expenses in the accompanying Consolidated Statements of Earnings is as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Total stock-based compensation expense $ 51 $ 51 $ 50 Income tax benefit recognized on stock-based compensation expense $ 14 $ 11 $ 14 Stock Options The Company has granted stock options under its stockholder approved stock plans. The Company calculates a weighted-average grant-date fair value using a Black-Scholes valuation model for options granted. Compensation expense for options is measured based on the fair market value of the option on the date of grant, and is recognized on a straight-line basis over a four-year vesting period. In general, the exercise price of each option awarded was equal to the closing market price of the Company’s common stock on the date of grant and an option’s maximum term is 10 years. The volatility assumption was based on a benchmark study of our peers prior to 2014. Starting with the options granted in 2014, the volatility was based on the Company’s historic volatility. The Company has not granted stock options since the year ended December 31, 2014. As of December 31, 2023, there was no unrecognized compensation cost related to stock options and the exercise prices on outstanding stock options was $37.65. The following table summarizes the Company’s stock option activity in 2023: Weighted-Average Number of Options Exercise Price Remaining Intrinsic Value (in millions) Outstanding, December 31, 2022 27,000 $ 37.65 1.10 $ 1 Exercised (17,900) 37.65 Outstanding, December 31, 2023 9,100 $ 37.65 0.10 $ 1 Exercisable, December 31, 2023 9,100 $ 37.65 0.10 $ 1 The total cash received from the exercise of stock options and the resulting tax benefits received were as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Cash received upon exercise of stock option awards $ 1 $ 1 $ 11 Income tax benefit received for stock option awards exercised $ — $ — $ 4 Restricted Stock Units The Company has granted restricted stock units (“RSUs”) under its stockholder-approved stock plans. Generally, all outstanding RSUs will fully settle in stock. Compensation expense for RSUs is measured based on the closing market price of the stock at date of grant and is recognized on a straight-line basis over the vesting period, which is typically three The weighted average grant date fair value of RSUs granted in 2023, 2022 and 2021 was $104.27, $90.41 and $84.03, respectively. The following table shows a summary of the Company’s RSUs: Number of Weighted- Balance at January 1, 2023 1,276,160 $ 69.16 Granted 408,890 104.27 Vested (391,096) 68.32 Forfeited (68,286) 87.10 Balance at December 31, 2023 1,225,668 $ 79.72 As of December 31, 2023, there was $40 million of total unrecognized compensation cost related to RSUs. That cost is expected to be recognized over a weighted-average period of 2.42 years. The total grant date fair value of stock vested during the years ended December 31, 2023, 2022 and 2021 was $27 million, $22 million and $26 million, respectively. Performance Share Units The Company has granted performance share units (“PSUs”) as a part of its long-term incentive plan. All outstanding PSUs will fully settle in stock. The amount of shares ultimately distributed from the 2023, 2022 and 2021 grants is contingent on meeting internal company-based metrics or an external-based stock performance metric. In 2023, 2022 and 2021, the Company granted both internal company-based and external-based metric PSUs. Internal Company-based metrics The internal Company-based metric PSUs are based on various Company metrics and typically vest after a three-year period. The amount of stock distributed will vary from 0% to 200% of PSUs awarded depending on each award's design and performance versus the Company-based metrics. The initial fair value for all internal company-based metric PSUs assumes that the performance goals will be achieved and is based on the grant date stock price. This assumption is monitored quarterly and if it becomes probable that such goals will not be achieved or will be exceeded, compensation expense recognized will be adjusted and previous surplus compensation expense recognized will be reversed or additional expense will be recognized. The expected term represents the period from the grant date to the end of the three-year performance period. Pro-rata vesting may be utilized in the case of death, disability or retirement, and awards, if earned, will be paid at the end of the three-year period. The following table provides a summary of the grant date fair values of the internal Company-based metric PSUs: Twelve Months Ended December 31, 2023 2022 2021 Grant date fair value of units granted $92.97 $87.06 $78.01 External based metrics The external-based metric PSUs vest after a three-year period. Outstanding grants issued in or after 2018 until 2022 were based on the Company’s total stockholder return relative to the performance of the Dow Jones U.S. Construction & Materials Index. Outstanding grants issued in 2023 are based on the Company’s total stockholder return relative to a peer group. The amount of stock distributed will vary from 0% to 200% of PSUs awarded depending on the relative stockholder return performance. The fair value of external-based metric PSUs has been estimated at the grant date using a Monte Carlo simulation that uses various assumptions. The following table provides a summary of the assumptions for PSUs granted in 2023, 2022 and 2021: Twelve Months Ended December 31, 2023 2022 2021 Expected volatility 44.66% 41.65% 42.74% — 43.67% Risk free interest rate 3.75% 1.36% 0.18% — 0.24% Expected term (in years) 2.91 2.91 2.56 — 2.90 Grant date fair value of units granted $119.33 $122.69 $99.19 — $127.37 The risk-free interest rate was based on zero-coupon United States Treasury STRIPS at the grant date. The expected term represents the period from the grant date to the end of the three-year performance period. PSU Summary As of December 31, 2023, there was $17 million total unrecognized compensation cost related to PSUs. That cost is expected to be recognized over a weighted-average period of 1.64 years. The total grant date fair value of shares vested during the years ended December 31, 2023, 2022 and 2021, was $21 million, $9 million and $8 million, respectively. The following table shows a summary of the Company's PSUs: Number of Weighted- Average Grant Date Fair Value Balance as of January 1, 2023 303,716 $ 91.47 Granted 266,149 95.01 Vested (245,697) 84.74 Forfeited (55,491) 94.98 Balance as of December 31, 2023 268,677 $ 100.57 Employee Stock Purchase Plan The Owens Corning Employee Stock Purchase Plan (“ESPP”) is a tax-qualified plan under Section 423 of the Internal Revenue Code. The purchase price of shares purchased under the ESPP is equal to 85% of the lower of the fair market value of shares of Owens Corning common stock at the beginning or ending of the offering period, which is a six month period ending on May 31 and November 30 of each year. On April 16, 2020, the Company's stockholders approved the Amended and Restated Owens Corning Employee Stock Purchase Plan which increased the number of shares available for issuance under the plan by 4.2 million shares. As of December 31, 2023, 3.2 million shares remain available for purchase. Included in total stock-based compensation expense is $7 million, $6 million and $6 million of expense related to the Company's ESPP for the years ended December 31, 2023, 2022 and 2021, respectively. As of December 31, 2023, the Company had $3 million of total unrecognized compensation costs related to the ESPP. Under the outstanding ESPP as of February 9, 2024, employees have contributed $5 million to purchase shares for the current purchase period ending May 31, 2024. The following table shows a summary of employee purchase activity under the ESPP: Twelve Months Ended December 31, 2023 2022 2021 Total shares purchased by employees 287,732 293,364 289,945 Average purchase price $ 83.51 $ 74.19 $ 66.68

CHANGES IN ACCUMULATED OTHER CO

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT	CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT The following table summarizes the changes in accumulated other comprehensive income (deficit) (in millions): Twelve Months Ended December 31, 2023 2022 Currency Translation Adjustment Beginning balance $ (380) $ (279) Net investment hedge amounts classified into AOCI, net of tax — 4 Gain (loss) on foreign currency translation 62 (105) Other comprehensive income (loss), net of tax 62 (101) Ending balance $ (318) $ (380) Pension and Other Postretirement Adjustment Beginning balance $ (301) $ (318) Amounts reclassified from AOCI to net earnings, net of tax (a) — 5 Pension annuity settlement charge reclassified from AOCI, net of tax (b) 109 — Amounts classified into AOCI, net of tax (4) 12 Other comprehensive income, net of tax 105 17 Ending balance $ (196) $ (301) Hedging Adjustment Beginning balance $ — $ 16 Amounts reclassified from AOCI to net earnings, net of tax (c) 39 (44) Amounts classified into AOCI, net of tax (28) 28 Other comprehensive income (loss), net of tax 11 (16) Ending balance $ 11 $ — Total AOCI ending balance $ (503) $ (681) (a) These AOCI components are included in the computation of total Pension and Other Postretirement cost and are recorded in Non-operating expense (income), net. See Notes 14 and 15 for additional information. (b) These amounts reclassified from AOCI relate to a pension annuity settlement which occurred in the fourth quarter of 2023. See Note 14 for additional information. (c) Amounts reclassified from (loss) gain on cash flow hedges are reclassified from AOCI to income when the hedged item affects earnings and is recognized in Cost of sales or Interest expense, net depending on the hedged item. See Note 4 for additional information.

EARNINGS PER SHARE

EARNINGS PER SHARE	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE The following table is a reconciliation of weighted-average shares for calculating basic and diluted earnings per-share (in millions, except per share amounts): Twelve Months Ended December 31, 2023 2022 2021 Net earnings attributable to Owens Corning $ 1,196 $ 1,241 $ 995 Weighted-average number of shares outstanding used for basic earnings per share 90.1 96.6 103.5 Non-vested restricted and performance shares 0.9 1.1 0.8 Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings per share 91.0 97.7 104.3 Earnings per common share attributable to Owens Corning common stockholders: Basic $ 13.27 $ 12.85 $ 9.61 Diluted $ 13.14 $ 12.70 $ 9.54 Basic earnings per share is calculated by dividing earnings attributable to Owens Corning by the weighted-average number of shares of the Company’s common stock outstanding during the period. Outstanding shares consist of issued shares less treasury stock. The Board of Directors approved two share repurchase programs in 2022 under which the Company is authorized to repurchase up to an aggregate of 20 million shares of the Company’s outstanding common stock (the “Repurchase Authorization”). The Repurchase Authorization enables the Company to repurchase shares through the open market, privately negotiated, or other transactions. The actual number of shares repurchased will depend on timing, market conditions and other factors and will be at the Company’s discretion. The Company repurchased 5.4 million shares of its common stock for $629 million, inclusive of applicable taxes, during the year ended December 31, 2023 under the Repurchase Authorization. As of December 31, 2023, 8.9 million shares remained available for repurchase under the Repurchase Authorization. For the year ended December 31, 2023, the Company did not have any non-vested restricted stock units or non-vested performance share units that had an anti-dilutive effect on earnings per share. For the year ended December 31, 2022, the Company did not have any non-vested restricted stock units or non-vested performance share units that had an anti-dilutive effect on earnings per share. For the year ended December 31, 2021, the number of shares used in the calculation of diluted earnings per share did not include 0.1 million shares of Company stock underlying unvested performance share units due to their anti-dilutive effect.

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The following table summarizes our Earnings before taxes and Income tax expense (in millions): Twelve Months Ended December 31, 2023 2022 2021 Earnings before taxes: United States $ 1,360 $ 1,286 $ 868 Foreign 231 328 445 Total $ 1,591 $ 1,614 $ 1,313 Income tax expense: Current United States $ 286 $ 180 $ 139 State and local 62 38 27 Foreign 65 125 90 Total current 413 343 256 Deferred United States (4) 50 53 State and local 5 (6) (3) Foreign (13) (14) 13 Total deferred (12) 30 63 Total income tax expense $ 401 $ 373 $ 319 The reconciliation between the United States federal statutory rate and the Company’s effective income tax rate from continuing operations is: Twelve Months Ended December 31, 2023 2022 2021 United States federal statutory rate 21 % 21 % 21 % State and local income taxes, net of federal tax benefit 3 2 3 Foreign tax credits — — (1) R&D Credits — (1) — Other, net 1 1 1 Effective tax rate 25 % 23 % 24 % The Company continues to assert indefinite reinvestment in accordance with ASC 740 based on the laws as of enactment of the Tax Act. As of December 31, 2023, the Company has not provided for withholding or income taxes on approximately $1.5 billion of undistributed reserves of its foreign subsidiaries and affiliates as they are considered by management to be permanently reinvested. Quantification of the deferred tax liability associated with these undistributed reserves is not practicable. The cumulative temporary differences giving rise to the deferred tax assets and liabilities are as follows (in millions): December 31, 2023 December 31, 2022 Deferred Deferred Deferred Deferred Other employee benefits $ 57 $ — $ 59 $ — Pension plans 13 — 16 — Operating loss and tax credit carryforwards 92 — 108 — Depreciation — 363 — 334 Capitalized R&D 53 — 24 — Leases - right of use assets — 70 — 70 Leases - liabilities 62 — 56 — Amortization — 293 — 298 Inventory 30 — 24 — Foreign tax credit carryforwards 53 — 52 — Other 103 — 120 — Subtotal 463 726 459 702 Valuation allowances (140) — (129) — Total deferred taxes $ 323 $ 726 $ 330 $ 702 The following table summarizes the amount and expiration dates of our deferred tax assets related to operating loss and tax credit carryforwards and foreign tax credit carryforwards at December 31, 2023 (in millions) (a): Expiration Amounts Domestic loss and tax credit carryforwards 2024-2036 $ 85 Foreign loss and tax credit carryforwards (b) 2024 - Indefinite 60 Total operating loss and tax credit carryforwards $ 145 (a) The use of certain of the Company's domestic loss carryforwards is limited pursuant to Internal Revenue Code (IRC) Section 382. IRC Section 382 imposes an annual limitation on a corporation's ability to use loss carryforwards that arose before a change in control. A change in control is generally defined as a cumulative change of more than 50% in the ownership positions of certain stockholders during a rolling three-year period. The Company believes that these limitations will not result in the loss of any of the loss carryforwards. (b) The foreign net operating losses are related to various jurisdictions that provide for both indefinite carryforward periods and others with carryforward periods that range from the tax years 2024 to 2033. Deferred income taxes are provided for temporary differences between amounts of assets and liabilities for financial reporting purposes and the basis of such assets and liabilities as measured under enacted tax laws and regulations, as well as NOLs, tax credits and other tax carryforwards. We have a variety of deferred tax assets in numerous tax jurisdictions. These deferred tax assets are subject to periodic assessment as to recoverability and if it is determined that it is more likely than not that the benefits will not be realized, valuation allowances are recognized. In evaluating whether it is more likely than not that we would recover these deferred tax assets, future taxable income, the reversal of existing temporary differences and tax planning strategies are considered. We believe that our estimates for the valuation allowances recorded against deferred tax assets are appropriate based on current facts and circumstances. As of December 31, 2023 we had $140 million of valuation allowances on deferred tax assets, on a tax-effected basis, primarily related to U.S. federal foreign tax credit carryforwards and certain foreign deferred tax attributes as it is more likely than not that some portion or all of these tax attributes will not be realized. We file a consolidated federal income tax return in the United States as well as tax returns in multiple state, local and foreign jurisdictions. In the normal course of business, the Company is subject to examination by the taxing authorities in each of the jurisdictions where we file tax returns. The Company is no longer subject to U.S. federal tax examinations for years before 2020 or state and foreign examinations for years before 2014. We have on-going audits in various stages of completion in several state and foreign jurisdictions, one or more of which may conclude within the next 12 months. Such settlements could involve some or all of the following: the payment of additional taxes, the adjustment of certain deferred taxes and/or the recognition of unrecognized tax benefits. The resolution of these matters, in combination with the expiration of certain statutes of limitations in various jurisdictions, make it reasonably possible that our unrecognized tax benefits may decrease as a result of either payment or recognition by up to $44 million in the next 12 months, excluding interest. A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Balance at beginning of period $ 71 $ 74 $ 76 Tax positions related to the current year Gross additions — — — Tax positions related to prior years Gross additions — 2 1 Gross reductions — — (1) Settlements — (1) (1) Expiration of statute of limitations (1) (3) (1) Impact of currency changes — (1) — Balance at end of period $ 70 $ 71 $ 74 If these unrecognized tax benefits were to be recognized as of December 31, 2023, the Company’s income tax expense would decrease by about $58 million. The Company recognizes all interest and penalties related to unrecognized tax benefits as a component of income tax expense. Accrued interest and penalties, which are not presented in the rollforward table above, were $9 million, $7 million and $7 million as of December 31, 2023, 2022 and 2021, respectively. Related to interest and penalties, we recognized an income tax expense of $2 million, $1 million and $2 million, as of December 31, 2023, 2022 and 2021, respectively.

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS	12 Months Ended
	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On February 8, 2024, the Company entered into a definitive agreement to purchase all of the outstanding shares of Masonite. The purchase price for the acquisition of Masonite is approximately $3.9 billion in cash, which we expect to fund with cash on hand and new committed financing. Masonite is a leading global designer, manufacturer, marketer and distributor of interior and exterior doors and door systems for the new construction and repair, renovation and remodeling sectors of the residential and non-residential building construction markets. The transaction was unanimously approved by the board of directors of both companies and is expected to close mid-2024, subject to regulatory and other customary closing conditions, including the approval of Masonite shareholders. On February 9, 2024, the Company announced the decision to review strategic alternatives for its global glass reinforcements (“GR”) business, consistent with our strategy to focus on building and construction materials. The GR business, which operates within our Composites segment, supplies a wide variety of glass fiber products for applications in wind energy, infrastructure, industrial, transportation, and consumer markets. The GR business generates annual revenues of approximately $1.3 billion and has operations in 11 countries, with 18 manufacturing facilities. While a range of options are under consideration, including a potential sale, spin-off or other strategic option, there can be no assurance that the strategic review will result in any transaction or other outcome.

SCHEDULE II - VALUATION AND QUA

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES	12 Months Ended
	Dec. 31, 2023
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES	SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS AND RESERVES FOR THE YEARS ENDED DECEMBER 31, 2023, 2022 AND 2021 (in millions) Balance at Charged to Charged to Deductions Balance FOR THE YEAR ENDED DECEMBER 31, 2023 Allowance for doubtful accounts $ 11 $ 1 $ — $ (1) (a) $ 11 Tax valuation allowance $ 129 $ 11 $ 1 $ (1) $ 140 FOR THE YEAR ENDED DECEMBER 31, 2022 Allowance for doubtful accounts $ 9 $ 3 $ — $ (1) (a) $ 11 Tax valuation allowance $ 132 $ 5 $ (2) $ (6) $ 129 FOR THE YEAR ENDED DECEMBER 31, 2021 Allowance for doubtful accounts $ 10 $ 1 $ — $ (2) (a) $ 9 Tax valuation allowance $ 133 $ 11 $ 8 $ (20) $ 132 (a) Uncollectible accounts written off, net of recoveries.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net Income (Loss) Attributable to Parent	$ 1,196	$ 1,241	$ 995

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	12 Months Ended
	Dec. 31, 2023 shares	Dec. 31, 2023 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Gunner Smith [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On October 31, 2023, Gunner Smith, the Company's President, Roofing, entered into a written plan for the sale of shares of Company common stock, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Securities Exchange Act of 1934 (the “Exchange Act”). Mr. Smith’s plan provides for the sale of 12,515 shares of Company common stock in the aggregate underlying future vesting restricted stock units and performance stock units (“PSUs”) that are expected to vest during the term of the plan. The amount of shares disclosed above has not been reduced by the number of shares that may be withheld for income taxes, and assumes that the PSUs will vest at 100% attainment. The actual number of PSUs that may vest can vary between 0% - 200% of the target award amount, subject to the achievement of certain performance conditions as set forth in the PSU award agreement, and the number of shares sold pursuant to Mr. Smith’s plan may increase or decrease accordingly. This plan is scheduled to terminate no later than October 25, 2024.
Name	Gunner Smith
Title	President, Roofing
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	October 31, 2023
Arrangement Duration	360 days
Aggregate Available	12,515	12,515
José Méndez-Andino [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On December 13, 2023, José Méndez-Andino, the Company's Executive Vice President, Chief Research and Development Officer, entered into a written plan for the sale of up to 2,833 shares of Company common stock, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. This plan is scheduled to terminate no later than December 13, 2024.
Name	José Méndez-Andino
Title	Executive Vice President, Chief Research and Development Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 13, 2023
Arrangement Duration	366 days
Aggregate Available	2,833	2,833
Paula Russell [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On December 14, 2023, Paula Russell, the Company's Executive Vice President, Chief Human Resources Officer, entered into a written plan for the sale of up to 3,765 shares of Company common stock, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. This plan is scheduled to terminate no later than November 29, 2024.
Name	Paula Russell
Title	Executive Vice President, Chief Human Resources Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	December 14, 2023
Arrangement Duration	351 days
Aggregate Available	3,765	3,765

BUSINESS AND SUMMARY OF SIGNI_2

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Basis of Accounting, Policy	Basis of Presentation Unless the context requires otherwise, the terms “Owens Corning,” “Company,” “we” and “our” in these notes refer to Owens Corning and its subsidiaries. The accompanying Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States.
Principles of Consolidation	Principles of Consolidation The Consolidated Financial Statements of the Company include the accounts of majority-owned subsidiaries. Intercompany accounts and transactions are eliminated.
Reclassifications	Reclassifications
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates.
Revenue Recognition	Revenue Recognition We recognize revenue as the amount of consideration that we expect to receive in exchange for transferring promised goods or services to customers. We do not adjust the transaction price for the effects of a significant financing component, as the time period between control transfer of goods and services and expected payment is one year or less. At the time of sale, we estimate provisions for different forms of variable consideration (discounts, rebates, returns and other refund liabilities) based on historical experience, current conditions and contractual obligations, as applicable. The estimated transaction price is typically not subject to significant reversals. We adjust these estimates when the most likely amount of consideration we expect to receive changes, although these changes are typically minor. Sales, value-added and other similar taxes that we collect are excluded from revenue. Many of our customer volume commitments are short-term and our performance obligations are generally limited to single purchase orders. Substantially all of our revenue is recognized at a point-in-time when control of goods transfers to the customer. Control transfer typically occurs when goods are shipped from our facilities or at other predetermined control transfer points (for instance, destination terms or consignment arrangements). Revenue Recognition (continued) We typically do not satisfy performance obligations without obtaining an unconditional right to payment from customers and, therefore, do not carry contract asset balances on the Consolidated Balance Sheets. Contract liability balances are recorded separately from receivables on the Consolidated Balance Sheets in either Total current liabilities or Other liabilities, depending on the timing of performance obligation satisfaction. We sell separately-priced warranties that extend certain product and workmanship coverages beyond our standard product warranty, which is described in Note 11. The up-front consideration on extended warranty contracts is deferred and recognized as revenue over time, based on the respective coverage period, ranging from 16 to 20 years. On an annual basis, we expect to recognize approximately $7 million of revenue associated with these extended warranty contracts. Additionally, in certain limited cases, we receive consideration before goods or services are transferred to the customer. These customer down payments and deposits are deferred, and typically recognized as revenue in the following quarters when we satisfy the related performance obligations. As of December 31, 2023, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $101 million. As of December 31, 2022, our contract liability balances totaled $89 million, of which $18 million was recognized as revenue throughout 2023. As of December 31, 2021, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $76 million, of which $17 million was recognized as revenue throughout 2022. As of December 31, 2020, our contract liability balances (for extended warranties, down payments and deposits, collectively) totaled $66 million, of which $17 million was recognized as revenue throughout 2021. As a practical expedient, we recognize incremental costs of obtaining a contract, if any, as an expense when incurred if the amortization period of the asset would have been one year or less. We do not have any costs to obtain or fulfill a contract that are capitalized under Accounting Standards Codification ( “ ASC ” ) 606.
Cost of Sales	Cost of Sales Cost of sales includes material, labor, energy and manufacturing overhead costs, including depreciation and amortization expense associated with the manufacture and distribution of the Company’s products. Provisions for warranties are provided in the same period that the related sales are recorded and are based on historical experience, current conditions and contractual obligations, as applicable. Distribution costs include inbound freight costs; purchasing and receiving costs; inspection costs; warehousing costs; shipping and handling costs, which include costs incurred relating to preparing, packaging, and shipping products to customers; and other costs of the Company’s distribution network. We account for shipping and handling activities that occur after control of the related good transfers as fulfillment activities instead of performance obligations. All shipping and handling costs billed to the customer are included as net sales in the Consolidated Statements of Earnings.
Marketing and Administrative Expenses	Marketing and Advertising Expenses
Science and Technology Expenses	Science and Technology Expenses The Company incurs certain expenses related to science and technology. These expenses include salaries, building and equipment costs, utilities, administrative expenses, materials and supplies associated with the improvement and development of the Company’s products and manufacturing processes. These costs are expensed as incurred.
Earnings per Share	Earnings per Share Basic earnings per share are computed using the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect the dilutive effect of common equivalent shares and increased shares that would result from the conversion of equity securities. The effects of anti-dilution are not presented.
Cash, Cash Equivalents and Restricted Cash
Accounts Receivable	Accounts Receivable
Inventory Valuation	Inventory Valuation Inventory costs include material, labor, and manufacturing overhead costs, including depreciation and amortization expense associated with the manufacture and distribution of the Company’s products. Inventories are stated at lower of cost or net realizable value and expense estimates are made for excess and obsolete inventories. Cost is determined by the first-in, first-out (“FIFO”) method.
Investments in Affiliates	Investments in Affiliates
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill assets are not amortized but are tested for impairment on at least an annual basis. The Company has the option to use a qualitative approach to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying value as a basis for determining whether it is necessary to perform a quantitative test. In the current year, as part of the annual assessment, the Company used both a qualitative and quantitative approach to determine whether the fair value of a reporting unit was less than its carrying amount. Events and circumstances we consider in performing the qualitative assessment include macro-economic conditions, market and industry conditions, internal cost factors, and the operational stability and the overall financial performance of the reporting units. When it is determined necessary for the Company to perform the quantitative testing process for goodwill, the Company estimates fair values using a discounted cash flow approach from the perspective of a market participant. Significant assumptions used in the discounted cash flow approach are revenue growth rates and earnings before interest and taxes (“EBIT”) margins used in estimating discrete period cash flow forecasts of the reporting unit, the discount rate, and the long-term revenue growth rate and EBIT margin used in estimating the terminal business value. The cash flow forecasts of the reporting units are based upon management’s long-term view of our markets and are the forecasts that are used by senior management and the Board of Directors to evaluate operating performance. The discount rate utilized is management’s estimate of what the market’s weighted average cost of capital is for a company with a similar debt rating and stock volatility, as measured by beta. The terminal business value is determined by applying the long-term growth rate to the latest year for which a forecast exists. As part of our goodwill quantitative testing process, we would evaluate whether there are reasonably likely changes to management’s estimates that would have a material impact on the results of the goodwill impairment testing. Other indefinite-lived intangible assets are not amortized but are tested for impairment on at least an annual basis or when determined to have a finite useful life. Substantially all of the indefinite-lived intangible assets are in trademarks and trade names. The Company uses the royalty relief approach to determine whether it is more likely than not that the fair value of these assets is less than its carrying amount. This review is performed annually, or when circumstances arise which indicate there may be impairment. When applying the royalty relief approach, the Company performs a discounted cash flow analysis based on the value derived from owning these trademarks and trade names and being relieved from paying royalty to third parties. Significant assumptions used include the discrete period revenue growth rates, long-term revenue growth rate, royalty rates, discount rates and terminal value. The inputs for the goodwill and indefinite-lived intangible tests are considered Level 3 inputs under the fair value hierarchy as they are the Company’s own data, and are unobservable in the marketplace. Indefinite-lived intangible assets purchased through acquisitions are generally tested qualitatively for impairment in the first year following the acquisition before transitioning to the standard methodology described herein in subsequent years. Please refer to Note 5 for additional disclosures related to Goodwill and Other Intangible Assets. Emissions Rights
Properties and Depreciation	Properties and Depreciation Property, plant and equipment are stated at cost and depreciated over their estimated useful lives using the straight-line method. When assets are disposed or otherwise retired, Property, plant and equipment accounts are relieved of the cost and related accumulated depreciation and any gain or loss is included in the Consolidated Statements of Earnings. Precious metals used in our production tooling are included in property, plant and equipment and are depleted as they are consumed during the production process. Depletion typically represents an annual expense of 2% of the outstanding value and is recorded in Cost of sales on the Consolidated Statements of Earnings. The range of useful lives for the major components of the Company’s plant and equipment is as follows: Buildings and leasehold improvements 15 – 40 years Machinery and equipment Furnaces 4 – 15 years Information systems 5 – 10 years Equipment 5 – 20 years Expenditures for normal maintenance and repairs are expensed as incurred.
Asset Impairments	Asset Impairments The Company evaluates tangible and intangible long-lived assets for impairment when triggering events have occurred. This requires significant assumptions including projected cash flows, projected income tax rate and terminal business value. These inputs are considered Level 3 inputs under the fair value hierarchy as they are the Company’s own data, and are unobservable in the marketplace. Changes in management intentions, market conditions or operating performance could indicate that impairment charges might be necessary that could be material to the Company’s Consolidated Financial Statements in any given period. Please refer to Note 5 for additional detail on impairment charges recorded in 2022.
Supplier Finance Programs	We review supplier terms and conditions on an ongoing basis, and have negotiated payment terms extensions in recent years in connection with our efforts to reduce working capital and improve cash flow. Separate from those terms extension actions, certain of our subsidiaries have entered into paying agency agreements with third-party administrators. These voluntary supply chain finance programs (collectively, the “Programs”) generally give participating suppliers the ability to sell, or otherwise pledge as collateral, their receivables from the Company to the participating financial institutions, at the sole discretion of both the suppliers and financial institutions. The Company is not a party to the arrangements between the suppliers and the financial institutions. The Company’s obligations to its suppliers, including amounts due and scheduled payment dates, are not impacted by the suppliers’ decisions to sell, or otherwise pledge as collateral, amounts under these arrangements. The Company's payment terms to the financial institutions, including the timing and amount of payments, are based on the original supplier invoices. One of our programs includes a parent guarantee to the participating financial institution for a certain U.S. subsidiary that, at the time of the respective program’s inception in 2015, was a guarantor subsidiary of the Company’s Credit Agreement. The obligations are presented as Accounts payable within Total current liabilities on the Consolidated Balance Sheets and all activity related to the obligations is presented within operating activities on the Consolidated Statements of Cash Flow.
Income Taxes	The Company recognizes current tax liabilities and assets for the estimated taxes payable or refundable on the tax returns for the current year. Deferred tax balances reflect the impact of temporary differences between the carrying amount of assets and liabilities and their tax basis. Amounts are stated at enacted tax rates expected to be in effect when taxes are actually paid or recovered. In addition, realization of certain deferred tax assets is dependent upon our ability to generate future taxable income. The Company records a valuation allowance to reduce its deferred tax assets to the amount that it believes is more likely than not to be realized. In addition, the Company estimates tax reserves to cover potential taxing authority claims for income taxes and interest attributable to audits of open tax years. Please refer to Note 20 for additional disclosures related to Income Taxes.
Taxes Collected From Customers and Remitted to Government Authorities and Taxes Paid to Vendors	Taxes Collected from Customers and Remitted to Government Authorities and Taxes Paid to Vendors Taxes are assessed by various governmental authorities at different rates on many different types of transactions. The Company charges sales tax or value-added tax (“VAT”) on sales to customers where applicable, as well as captures and claims back all available VAT that has been paid on purchases. VAT is recorded in separate payable or receivable accounts and does not affect Net Sales or Cost of Sales line items on the Consolidated Statement of Earnings. VAT receivable is recorded as a percentage of qualifying purchases at the time the vendor invoice is processed. VAT payable is recorded as a percentage of qualifying sales at the time an Owens Corning sale to a customer subject to VAT occurs. Amounts are paid to the taxing authority according to the method and collection prescribed by local regulations. Where applicable, VAT payable is netted against VAT receivable. The Company also pays sales tax to vendors who include a tax, required by government regulations, to the purchase price charged to the Company.
Pension and Other Postretirement Benefits	Pension and Other Postretirement Benefits Accounting for pensions and other postretirement benefits involves estimating the cost of benefits to be provided well into the future and attributing that cost over the time period each employee works. To accomplish this, extensive use is made of assumptions about investment returns, discount rates, inflation, mortality, turnover and medical costs. Please refer to Notes 14 and 15 for additional disclosures related to Pension Plans and Other Postretirement Benefits, respectively.
Derivative Financial Instruments	Derivative Financial Instruments The Company recognizes all derivative instruments as either assets or liabilities at fair value on the balance sheet. Please refer to Note 4 for further disclosure on derivatives. The Company performs an analysis for effectiveness of its derivatives designated as hedging instruments at the end of each quarter based on the terms of the contracts and the underlying items being hedged. The change in the fair value of cash flow hedges is deferred in Accumulated other comprehensive income (deficit) (“AOCI”) and is subsequently recognized in Cost of sales (for commodity and foreign currency cash flow hedges) on the Consolidated Statements of Earnings in order to mirror the location of the hedged items impacting earnings. Cash settlements for commodity and foreign currency hedges qualifying as cash flow hedges are included in Operating activities in the Consolidated Statements of Cash Flows. The Company has translation exposure resulting from translating the financial statements of foreign subsidiaries into U.S. Dollars, which is recognized in Currency translation adjustment (a component of AOCI). The Company uses cross-currency forward contracts to hedge portions of the net investment in foreign subsidiaries against fluctuations in foreign exchange rates. The changes in fair values of these derivative instruments are recognized in Currency translation adjustment (a component of AOCI), with recognition of the excluded components amortized to Interest expense, net on the Consolidated Statements of Earnings. Cash settlements for derivatives qualifying as net investment hedges are included in Investing activities in the Consolidated Statements of Cash Flows. The Company uses forward currency exchange contracts to manage existing exposures to foreign exchange rate risks related to assets and liabilities recorded on the Consolidated Balance Sheets. Gains and losses resulting from the changes in fair value of these instruments are recorded in Other expense (income), net on the Consolidated Statements of Earnings, and are substantially offset by net revaluation impacts on foreign currency denominated balance sheet exposures (which are also recorded in Other expense (income), net). Cash settlements for non-designated derivatives are included in the Consolidated Statements of Cash Flows in the category that is consistent with the nature of the derivative instrument, which is generally the same category as the underlying item being hedged.
Fair Value Measurements	Fair Value Measurements The carrying value of cash and cash equivalents, accounts receivable and short-term debt approximate fair value because of the short-term maturity of the instruments. Please refer to Notes 4, 13, 14 and 15 for fair value disclosures of derivative financial instruments, long-term debt, pension plans and postemployment and postretirement benefits other than pensions.
Foreign Currency
Related Party Transactions	Related Party Transactions
Failed Sale-Leaseback - Fort Smith, Arkansas Municipal Tax Incentive	Failed Sale-Leaseback - Fort Smith, Arkansas Municipal Tax Incentive In the fourth quarter of 2023, the Company signed a municipal tax incentive agreement, as part of which, the Company sold its Fort Smith, Arkansas plant and equipment (together, the “facility”) to the municipality of Fort Smith for cash of $165 million. The Company then, on the same day, entered into an agreement to lease the facility from the municipality of Fort Smith over ten years for a total lease liability of $165 million and immediately purchased ten-year municipal bonds at 6.7% interest issued by the municipality of Fort Smith with cash of $165 million. In the Consolidated Statements of Cash Flows, the cash proceeds from the sale of the facility and the cash used for the bond purchase are presented on a net basis within the Net cash flows used by investing activities. The monthly lease payments under the financing lease obligation and the semi-annual bond coupon payments associated with the bond investment are legally offset and, as such, the offset lease obligation and bond investment amounts are presented on a net basis on the Consolidated Balance Sheets. There will be no cash payments made by either party over the ten-year period. At the termination of the lease agreement, a non-cash exchange will occur where the municipality will call the bond and return title of the facility to the Company. The transaction did not qualify for sale-leaseback treatment under ASC 842 and, therefore, the plant’s net book value, as well as the net book value of the equipment sold, remains in Property, plant and equipment, net on the Consolidated Balance Sheets. Depreciation expense on the assets sold remains within Cost of Sales on the Consolidated Statements of Earnings.
Accounting Pronouncements	Accounting Pronouncements The following table summarizes recent Accounting Standard Updates (“ASU”) issued by the Financial Accounting Standards Board (“FASB”) that could have an impact on the Company's Consolidated Financial Statements: Standard Description Effective Date for Company Effect on the Consolidated Financial Statements Recently issued standards: ASU 2023-06 “Disclosure Improvements” The amendments in this update modify the disclosure or presentation requirements of a variety of Topics The effective date for each topic is contingent on future SEC rule setting. We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statement disclosures. We do not believe the adoption of this guidance will have a material effect on the results of operations. ASU 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures” The amendments in this update improve reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. January 1, 2024 We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statement disclosures. We do not believe the adoption of this guidance will have a material effect on the results of operations. ASU 2023-08 “Intangibles—Goodwill and Other— Crypto Assets (Subtopic 350-60): Accounting for and Disclosure of Crypto Assets” This standard provides that certain crypto assets should be accounted for under fair value methodology rather than as indefinite-lived intangibles. January 1, 2024 We do not believe the adoption of this guidance will have a material effect on our Consolidated Financial Statements. ASU 2023-09 “Income Taxes (Topic 740): Improvements to Income Tax Disclosures” This standard modifies the rate reconciliation and income taxes paid disclosures by requiring consistent categories and greater disaggregation of information in the rate reconciliation, as well as requiring income taxes paid to be disaggregated by jurisdiction. January 1, 2025 We are currently assessing the impact adopting this standard will have on our Consolidated Financial Statements.

BUSINESS AND SUMMARY OF SIGNI_3

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Property, Plant and Equipment	The range of useful lives for the major components of the Company’s plant and equipment is as follows: Buildings and leasehold improvements 15 – 40 years Machinery and equipment Furnaces 4 – 15 years Information systems 5 – 10 years Equipment 5 – 20 years Property, plant and equipment consist of the following (in millions): December 31, 2023 2022 Land $ 168 $ 166 Buildings and leasehold improvements 1,263 1,221 Machinery and equipment 5,402 5,220 Construction in progress 665 522 7,498 7,129 Accumulated depreciation (3,657) (3,400) Property, plant and equipment, net $ 3,841 $ 3,729
Outstanding Obligations Under Supplier Finance Programs	The Company's outstanding obligations under the programs for the twelve months ended December 31, 2023 and 2022 are as follows (in millions): Twelve Months Ended December 31, 2023 2022 Confirmed obligations outstanding at the beginning of the year $ 234 $ 226 Invoices confirmed during the year 569 656 Confirmed invoices paid during the year (592) (648) Confirmed obligations outstanding at the end of the year $ 211 $ 234

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Reconciliation of Revenue from Segments to Consolidated	The following tables show a disaggregation of our net sales by segment and geographic region (in millions). Corporate eliminations (shown below) largely reflect intercompany sales from Composites to Roofing. External customer sales are attributed to geographic region based upon the location from which the product is sold to the external customer. Twelve Months Ended December 31, 2023 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 3,781 $ 1,407 $ 359 $ (296) $ 5,251 U.S. commercial and industrial 137 869 845 (8) $ 1,843 Total United States 3,918 2,276 1,204 (304) $ 7,094 Europe 19 771 492 (3) $ 1,279 Asia-Pacific 1 147 429 — $ 577 Rest of world 92 474 161 — $ 727 NET SALES $ 4,030 $ 3,668 $ 2,286 $ (307) $ 9,677 Twelve Months Ended December 31, 2022 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 3,355 $ 1,523 $ 352 $ (262) $ 4,968 U.S. commercial and industrial 160 796 872 (4) $ 1,824 Total United States 3,515 2,319 1,224 (266) $ 6,792 Europe 21 805 671 (5) $ 1,492 Asia-Pacific 6 160 550 — $ 716 Rest of world 116 430 215 — $ 761 NET SALES $ 3,658 $ 3,714 $ 2,660 $ (271) $ 9,761 Twelve Months Ended December 31, 2021 Reportable Segments Roofing Insulation Composites Eliminations Consolidated Disaggregation Categories U.S. residential $ 2,958 $ 1,194 $ 312 $ (230) $ 4,234 U.S. commercial and industrial 120 705 637 — $ 1,462 Total United States 3,078 1,899 949 (230) $ 5,696 Europe 19 718 653 (6) $ 1,384 Asia-Pacific 7 187 552 — $ 746 Rest of world 105 380 187 — $ 672 NET SALES $ 3,209 $ 3,184 $ 2,341 $ (236) $ 8,498
Schedule of Earnings before Interest and Taxes	The following table summarizes EBIT by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 1,174 $ 831 $ 753 Insulation 619 612 446 Composites 242 498 376 Total reportable segments 2,035 1,941 1,575 Corporate, Other and Eliminations Restructuring costs (169) (48) (34) Gain on sale of Santa Clara, California site 189 — — Pension settlement losses (145) — — Gain on sale of land in India — — 15 Gain on sale of Shanghai, China facility — 27 — Gains on sale of certain precious metals 2 18 53 Intangible assets impairment charge — (96) — Acquisition and divestiture-related costs — (7) — Recognition of acquisition inventory fair value step-up — — (1) Paroc marine recall (15) — — Loss on sale of Chambery, France DUCS business — (30) — Loss on sale of Russian operations — (33) — Gain on remeasurement of Fiberteq equity investment — 130 — General corporate expense and other (230) (179) (160) Total Corporate, other and eliminations (368) (218) (127) EBIT $ 1,667 $ 1,723 $ 1,448
Reconciliation of Assets from Segment to Consolidated	The following table summarizes total assets by segment and property, plant and equipment by geographic region (in millions): December 31, TOTAL ASSETS 2023 2022 Reportable Segments Roofing $ 1,863 $ 1,897 Insulation 3,934 3,930 Composites 3,153 3,202 Total reportable segments 8,950 9,029 Cash and cash equivalents 1,615 1,099 Noncurrent deferred income taxes 24 16 Investments in affiliates 29 27 Assets held for sale — 45 Corporate property, plant and equipment, other assets and eliminations 619 536 CONSOLIDATED TOTAL ASSETS $ 11,237 $ 10,752
Schedule of Property, Plant and Equipment by Geographical Areas	December 31, PROPERTY, PLANT AND EQUIPMENT BY GEOGRAPHIC REGION 2023 2022 United States $ 2,508 $ 2,383 Europe 606 541 Asia-Pacific 462 541 Rest of world 265 264 CONSOLIDATED PROPERTY, PLANT AND EQUIPMENT $ 3,841 $ 3,729
Schedule of Depreciation and Amortization by Segment	The following table summarizes the provision for depreciation and amortization by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 64 $ 62 $ 59 Insulation 210 206 208 Composites 172 175 162 Total reportable segments 446 443 429 General corporate depreciation and amortization (a) 163 88 73 CONSOLIDATED PROVISION FOR DEPRECIATION AND AMORTIZATION $ 609 $ 531 $ 502 (a) In 2023, 2022 and 2021, General corporate depreciation and amortization expense included $101 million, $26 million and $13 million, respectively, of accelerated depreciation and amortization related to restructuring actions further explained in Note 12 to the Consolidated Financial Statements.
Schedule of Additions to Property, Plant and Equipment by Segment	The following table summarizes cash paid for property, plant and equipment by segment (in millions): Twelve Months Ended December 31, 2023 2022 2021 Reportable Segments Roofing $ 65 $ 50 $ 54 Insulation 182 196 144 Composites 212 151 153 Total reportable segments 459 397 351 General corporate additions 67 49 65 CONSOLIDATED ADDITIONS TO PROPERTY, PLANT AND EQUIPMENT $ 526 $ 446 $ 416

INVENTORIES (Tables)

INVENTORIES (Tables)	12 Months Ended
	Dec. 31, 2023
Inventory Disclosure [Abstract]
Schedule of Inventory, Current	Inventories consist of the following (in millions): December 31, 2023 2022 Finished goods $ 742 $ 843 Materials and supplies 456 491 Total inventories $ 1,198 $ 1,334

DERIVATIVE FINANCIAL INSTRUME_2

DERIVATIVE FINANCIAL INSTRUMENTS (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Assets and Liabilities at Fair Value	The following table presents the fair value of derivatives and hedging instruments and the respective location on the Consolidated Balance Sheets (in millions): Fair Value at Location December 31, 2023 December 31, 2022 Derivative assets designated as hedging instruments: Cash flow hedges: Natural gas forward swaps Other current assets $ — $ 2 Derivative liabilities designated as hedging instruments: Cash flow hedges: Natural gas forward swaps Other current liabilities $ 15 $ 32 Derivative assets not designated as hedging instruments: Foreign exchange forward contracts Other current assets $ 1 $ 1 Derivative liabilities not designated as hedging instruments: Foreign exchange forward contracts Other current liabilities $ 1 $ 2
Schedule of Fair Value Derivative Instruments Statements of Earnings Location	The following table presents the impact and respective location of derivative activities on the Consolidated Statements of Earnings (in millions): Twelve Months Ended Location 2023 2022 2021 Derivative activity designated as hedging instruments: Natural gas cash flow hedges: Amount of loss (gain) reclassified from AOCI (as defined below) into earnings (a) Cost of sales $ 52 $ (52) $ (15) Cross-currency swap net investment hedges: Amount of gain recognized in earnings on derivative amounts excluded from effectiveness testing Interest expense, net $ — $ (1) $ (5) Derivative activity not designated as hedging instruments: Foreign currency: Amount of loss (gain) recognized in earnings (b) Other expense (income), net $ 10 $ (29) $ (41) Treasury interest rate lock: Amount of gain recognized in earnings Other expense (income), net $ — $ (6) $ — (a) Accumulated Other Comprehensive Earnings (Deficit) (“AOCI”) (b) The following table presents the impact of derivative activities on the Consolidated Statements of Comprehensive Earnings (in millions): Amount of Gain (Loss) Recognized in Comprehensive Earnings Twelve Months Ended December 31, Hedging Type Derivative Financial Instrument 2023 2022 Net investment hedge Cross-currency swaps $ — $ 5 Cash flow hedge Natural gas forward swaps $ 15 $ (40) Cash flow hedge Treasury interest rate lock $ — $ 20

GOODWILL AND OTHER INTANGIBLE_2

GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the net carrying amount of goodwill by segment are as follows (in millions): Roofing Insulation Composites Total Gross carrying amount at December 31, 2022 $ 394 $ 1,499 $ 425 $ 2,318 Acquisitions (see Note 7) — — (1) (1) Foreign currency translation 1 21 1 23 Gross carrying amount at December 31, 2023 395 1,520 425 2,340 Accumulated impairment losses at December 31, 2022 — (935) — (935) Foreign currency translation — (13) — (13) Accumulated impairment losses at December 31, 2023 — (948) — (948) Balance, net of impairment at December 31, 2023 $ 395 $ 572 $ 425 $ 1,392 Roofing Insulation Composites Total Gross carrying amount at December 31, 2021 $ 397 $ 1,481 $ 75 $ 1,953 Acquisitions (see Note 7) — 62 353 415 Foreign currency translation (3) (44) (3) (50) Gross carrying amount at December 31, 2022 394 1,499 425 2,318 Accumulated impairment losses at December 31, 2021 — (963) — (963) Foreign currency translation — 28 — 28 Accumulated impairment losses at December 31, 2022 — (935) — (935) Balance, net of impairment at December 31, 2022 $ 394 $ 564 $ 425 $ 1,383
Schedule of Finite-Lived Intangible Assets	Other intangible assets consist of the following (in millions): December 31, 2023 December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Accumulated Net Indefinite-lived trademarks and trade names $ 992 $ — $ 992 $ 989 $ — $ 989 Amortizable intangible assets Customer relationships 614 (283) 331 638 (243) 395 Technology 326 (203) 123 330 (187) 143 Trademarks 12 (2) 10 12 — 12 Other (a) 74 (2) 72 66 (3) 63 Total other intangible assets $ 2,018 $ (490) $ 1,528 $ 2,035 $ (433) $ 1,602
Schedule of Indefinite-Lived Intangible Assets	The following table presents the carrying values of these assets as of December 31, 2023 (in millions): Trade names and trademarks December 31, 2023 European building and technical insulation trade name $ 90 Global cellular glass insulation trademark $ 80
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The estimated amortization expense for intangible assets for the next five years is as follows (in millions): Period Amortization 2024 $ 65 2025 $ 58 2026 $ 44 2027 $ 35 2028 $ 34

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	The range of useful lives for the major components of the Company’s plant and equipment is as follows: Buildings and leasehold improvements 15 – 40 years Machinery and equipment Furnaces 4 – 15 years Information systems 5 – 10 years Equipment 5 – 20 years Property, plant and equipment consist of the following (in millions): December 31, 2023 2022 Land $ 168 $ 166 Buildings and leasehold improvements 1,263 1,221 Machinery and equipment 5,402 5,220 Construction in progress 665 522 7,498 7,129 Accumulated depreciation (3,657) (3,400) Property, plant and equipment, net $ 3,841 $ 3,729

LEASES (Tables)

LEASES (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Schedule of Lease-Related Assets and Liabilities	The table below presents the lease-related assets and liabilities recorded on the balance sheet (in millions): December 31, Leases Classification on Balance Sheet 2023 2022 Assets Operating lease assets Operating lease right-of-use assets $ 222 $ 204 Finance lease assets Other non-current assets 149 127 Total lease assets $ 371 $ 331 Liabilities Current Operating Current operating lease liabilities $ 62 $ 52 Finance Long-term debt – current portion 32 28 Non-current Operating Non-current operating lease liabilities 165 152 Finance Long-term debt, net of current portion 122 103 Total lease liabilities $ 381 $ 335
Lease, Cost	The table below presents lease-related costs (in millions): Twelve Months Ended December 31, 2023 2022 2021 Operating lease cost $ 81 $ 67 $ 69 Finance lease cost Amortization of right-of-use asset $ 35 $ 30 $ 23 Interest on lease liabilities $ 6 $ 4 $ 4 Short-term lease cost $ 6 $ 12 $ 7 Variable lease cost $ 8 $ 6 $ 5
Supplemental Information Related to Leases	The tables below present supplemental information related to leases: December 31, Weighted-average remaining lease term (years) 2023 2022 2021 Operating leases 4.6 4.8 4.2 Finance leases 9.5 9.6 6.9 December 31, Weighted-average discount rate 2023 2022 2021 Operating leases 3.79 % 3.32 % 3.27 % Finance leases 4.02 % 3.46 % 3.67 %
Finance Lease, Liability, Maturity	The table below reconciles the undiscounted cash flows for each of the first five years and the total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the balance sheet as of December 31, 2023 (in millions): Period Operating Leases Finance Leases 2024 $ 70 $ 37 2025 58 29 2026 43 20 2027 30 13 2028 17 10 2029 and beyond 30 87 Total minimum lease payments 248 196 Less: implied interest 21 42 Present value of future minimum lease payments 227 154 Less: current lease obligations 62 32 Long-term lease obligations $ 165 $ 122
Lessee, Operating Lease, Liability, Maturity	The table below reconciles the undiscounted cash flows for each of the first five years and the total of the remaining years to the finance lease liabilities and operating lease liabilities recorded on the balance sheet as of December 31, 2023 (in millions): Period Operating Leases Finance Leases 2024 $ 70 $ 37 2025 58 29 2026 43 20 2027 30 13 2028 17 10 2029 and beyond 30 87 Total minimum lease payments 248 196 Less: implied interest 21 42 Present value of future minimum lease payments 227 154 Less: current lease obligations 62 32 Long-term lease obligations $ 165 $ 122

OTHER CURRENT LIABILITIES (Tabl

OTHER CURRENT LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2023
Payables and Accruals [Abstract]
Schedule of Accounts Payable and Accrued Liabilities	Other current liabilities consist of the following current portions of these liabilities (in millions): December 31, 2023 2022 Payroll, vacation pay and incentive compensation $ 224 $ 233 Income, property, and other non-payroll taxes 91 108 Other 300 338 Total other current liabilities $ 615 $ 679

WARRANTIES (Tables)

WARRANTIES (Tables)	12 Months Ended
	Dec. 31, 2023
Product Warranties Disclosures [Abstract]
Schedule of Product Warranty Liability	A reconciliation of the warranty liability is as follows (in millions): December 31, 2023 2022 Beginning balance $ 88 $ 81 Amounts accrued for current year 26 20 Settlements of warranty claims (17) (13) Ending balance $ 97 $ 88

RESTRUCTURING, ACQUISITION AN_2

RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS (Tables)	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Restructuring and Related Costs	The following table presents the impact and respective location of total restructuring, acquisition and divestiture-related costs on the Consolidated Statements of Earnings, which are included within Corporate, Other and Eliminations (in millions): Twelve Months Ended December 31, Type of Cost Location 2023 2022 2021 Accelerated depreciation Cost of sales $ (76) $ (26) $ (13) Other exit (costs) gains Cost of sales (26) (16) (1) Recognition of acquisition inventory fair value step-up Cost of sales — — (1) Other exit (costs) gains Marketing and administrative expenses (2) — (2) Acquisition and divestiture-related (costs) gains Marketing and administrative expenses — (7) — Severance Other expense (income), net (34) (1) (11) Other exit (costs) gains Other expense (income), net (6) (41) 10 Accelerated amortization Other expense (income), net (25) — — Acquisition and divestiture-related (costs) gains Gain on equity method investment — 130 — Gain on sale of Santa Clara, California site Gain on sale of site 189 — — Other exit (costs) gains Non-operating expense (income), net — — (2) Total restructuring, acquisition and divestiture-related gains (costs) $ 20 $ 39 $ (20)
Schedule of Restructuring Reserve by Type of Cost	The following tables summarize the status of the unpaid liabilities from the Company’s restructuring activities (in millions): December 31, 2023 Global Composites Restructuring Building Materials Asia-Pacific Optimization Protective Packaging Exit Wabash Facility Closure Balance at December 31, 2022 $ — $ — $ — $ — Restructuring costs 16 18 78 33 Payments — (1) (8) (4) Accelerated depreciation and other non-cash items (4) (17) (69) (26) Balance at December 31, 2023 $ 12 $ — $ 1 $ 3 Cumulative charges incurred $ 16 $ 18 $ 78 $ 33 December 31, 2023 (continued) European Operating Structure Optimization Composites Strategic Realignment Actions Roofing Restructuring Actions Santa Clara Insulation Site Balance at December 31, 2022 $ — $ 1 $ — $ 7 Restructuring costs 12 2 2 6 Payments (6) (3) (2) (12) Accelerated depreciation and other non-cash items — — — (1) Balance at December 31, 2023 $ 6 $ — $ — $ — Cumulative charges incurred $ 12 $ 11 $ 10 $ 66 December 31, 2022 Composites Strategic Realignment Actions Roofing Restructuring Actions Santa Clara Insulation Site 2020 Insulation Restructuring Actions Acquisition-Related Restructuring Balance at December 31, 2021 $ — $ 1 $ 13 $ 1 $ 5 Restructuring costs (gains) 9 3 35 2 (1) Payments (2) — (19) (1) (3) Accelerated depreciation and other non-cash items (6) (4) (22) (2) 1 Balance at December 31, 2022 $ 1 $ — $ 7 $ — $ 2 Cumulative charges incurred $ 9 $ 8 $ 60 $ 29 $ 26

DEBT (Tables)

DEBT (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments	Details of the Company’s outstanding long-term debt, as well as the fair values, are as follows (in millions): December 31, 2023 December 31, 2022 Carrying Value Fair Value Carrying Value Fair Value 4.200% senior notes, net of discount and financing fees, due 2024 $ 399 99 % $ 398 99 % 3.400% senior notes, net of discount and financing fees, due 2026 398 96 % 398 94 % 3.950% senior notes, net of discount and financing fees, due 2029 447 95 % 446 90 % 3.875% senior notes, net of discount and financing fees, due 2030 298 94 % 298 89 % 7.000% senior notes, net of discount and financing fees, due 2036 369 116 % 368 107 % 4.300% senior notes, net of discount and financing fees, due 2047 589 88 % 589 78 % 4.400% senior notes, net of discount and financing fees, due 2048 391 87 % 390 78 % Various finance leases, due through 2050 (a) 154 100 % 131 100 % Other 1 N/A 2 N/A Total long-term debt 3,046 N/A 3,020 N/A Less – current portion of senior notes 399 99 % — — % Less – current portion of other long-term debt (a) 32 100 % 28 100 % Long-term debt, net of current portion $ 2,615 N/A $ 2,992 N/A
Schedule of Line of Credit Facilities	The following table shows how the Company utilized its primary sources of liquidity (in millions): Balance at December 31, 2023 Senior Revolving Credit Facility Receivables Securitization Facility Facility size $ 800 $ 280 Collateral capacity limitation on availability N/A — Outstanding borrowings — — Outstanding letters of credit 4 1 Availability on facility $ 796 $ 279
Schedule of Maturities of Long-term Debt	The aggregate maturities for all outstanding long-term debt borrowings for each of the five years following December 31, 2023 and thereafter are presented in the table below (in millions). The maturities below are the aggregate par amounts of the outstanding senior notes and finance lease liabilities: Period Maturities 2024 $ 432 2025 24 2026 416 2027 10 2028 7 2029 and beyond 2,191 Total $ 3,080

PENSION PLANS (Tables)

PENSION PLANS (Tables)	12 Months Ended
	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations	The following tables provide a reconciliation of the change in the projected benefit obligation, the change in plan assets and the net amount recognized in the Consolidated Balance Sheets (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 638 $ 326 $ 964 $ 841 $ 476 $ 1,317 Service cost 3 3 6 5 4 9 Interest cost 29 16 45 23 11 34 Actuarial (gain) loss (21) 9 (12) (174) (103) (277) Currency loss (gain) — 11 11 — (38) (38) Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Other — 1 1 1 (2) (1) Benefit obligation at end of period $ 366 $ 304 $ 670 $ 638 $ 326 $ 964
Schedule of Changes in Fair Value of Plan Assets	December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Plan Assets Fair value of assets at beginning of period $ 602 $ 302 $ 904 $ 816 $ 443 $ 1,259 Actual return on plan assets 22 14 36 (156) (92) (248) Currency gain (loss) — 9 9 — (35) (35) Company contributions — 18 18 — 8 8 Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Fair value of assets at end of period 341 281 622 602 302 904 Funded status $ (25) $ (23) $ (48) $ (36) $ (24) $ (60)
Schedule of Amounts Recognized in Balance Sheet	The following table presents the amount recorded and respective location in the Consolidated Balance sheets (in millions): December 31, 2023 December 31, 2022 Location U.S. Non-U.S. Total U.S. Non-U.S. Total Prepaid pension cost Other non-current assets $ — $ 23 $ 23 $ — $ 21 $ 21 Accrued pension cost – current Other current liabilities — (2) (2) (1) (2) (3) Accrued pension cost – non-current Pension plan liability (25) (44) (69) (35) (43) (78) Total amount recorded $ (25) $ (23) $ (48) $ (36) $ (24) $ (60)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (191) $ (74) $ (265) $ (340) $ (72) $ (412) Net prior service cost — (5) (5) — (5) (5) Total amount recorded $ (191) $ (79) $ (270) $ (340) $ (77) $ (417)
Schedule of Assumptions Used to Determine Benefit Obligations	The following table presents weighted average assumptions used to determine benefit obligations at the measurement dates: December 31, 2023 2022 United States Plans Discount rate 5.00 % 5.15 % Cash balance interest crediting rate 4.63 % 3.77 % Non-United States Plans Discount rate 4.62 % 5.02 % Rate of compensation increase 3.25 % 3.31 %
Schedule of Allocation of Plan Assets	The following tables summarize the fair values and applicable fair value hierarchy levels of United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ — $ — $ — $ — Fixed income and cash equivalents: Corporate bonds 12 82 — 94 Government debt — 20 — 20 Total United States plan assets subject to leveling $ 12 $ 102 $ — 114 Plan assets measured at NAV: Equities 69 Real assets 11 Fixed income and cash equivalents 110 Absolute return strategies 37 Total United States plan assets $ 341 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ 39 $ — $ — $ 39 Fixed income and cash equivalents: Corporate bonds 26 230 — 256 Government debt — 58 — 58 Total United States plan assets subject to leveling $ 65 $ 288 $ — 353 Plan assets measured at NAV: Equities 95 Real assets 25 Fixed income and cash equivalents 87 Absolute return strategies 42 Total United States plan assets $ 602 The following tables summarize the fair values and applicable fair value hierarchy levels of non-United States pension plan assets (in millions): December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 57 — 57 Fixed income — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 69 $ — 69 Plan assets measured at NAV: Equities 28 Fixed income and cash equivalents 122 Absolute return strategies and other 62 Total non-United States plan assets $ 281 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 56 — 56 Corporate bonds — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 68 $ — 68 Plan assets measured at NAV: Equities 22 Fixed income and cash equivalents 127 Absolute return strategies 85 Total non-United States plan assets $ 302
Pension Plans, Defined Benefit
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets	The following table presents information about the projected benefit obligation, accumulated benefit obligation (“ABO”) and plan assets of the Company’s pension plans (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Plans with PBO in excess of fair value of plan assets: Projected benefit obligation $ 366 $ 221 $ 587 $ 638 $ 208 $ 846 Fair value of plan assets $ 341 $ 174 $ 515 $ 602 $ 163 $ 765 Plans with ABO in excess of fair value of plan assets: Accumulated benefit obligation $ 366 $ 203 $ 569 $ 638 $ 192 $ 830 Fair value of plan assets $ 341 $ 164 $ 505 $ 602 $ 153 $ 755
Schedule of Net Benefit Costs	The following table presents the components of net periodic pension cost (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States Plans Service cost $ 3 $ 5 $ 5 Interest cost 29 23 22 Expected return on plan assets (37) (36) (36) Amortization of actuarial loss 5 11 12 Settlement/curtailment 138 — — Other — — 2 Net periodic pension cost $ 138 $ 3 $ 5 Non-United States Plans Service cost $ 3 $ 4 $ 6 Interest cost 16 11 9 Expected return on plan assets (15) (16) (18) Amortization of actuarial loss 3 2 4 Settlement/curtailment 7 (1) — Other 1 — — Net periodic pension cost $ 15 $ — $ 1 Total Service cost $ 6 $ 9 $ 11 Interest cost 45 34 31 Expected return on plan assets (52) (52) (54) Amortization of actuarial loss 8 13 16 Settlement/curtailment 145 (1) — Other 1 — 2 Net periodic pension cost $ 153 $ 3 $ 6
Schedule of Assumptions Used to Determine Net Benefit Cost	The following table presents weighted-average assumptions used to determine net periodic pension costs for the periods noted: Twelve Months Ended December 31, 2023 2022 2021 United States Plans Discount rate 5.15 % 2.85 % 2.50 % Expected return on plan assets 5.75 % 4.75 % 4.75 % Cash balance interest crediting rate 3.76 % 1.26 % 0.79 % Rate of compensation increase N/A (a) N/A (a) N/A (a) Non-United States Plans Discount rate 5.02 % 2.35 % 1.73 % Expected return on plan assets 5.00 % 3.93 % 4.08 % Rate of compensation increase 3.31 % 3.31 % 3.00 % (a) Not applicable due to changes in plan made on August 1, 2009 that were effective beginning January 1, 2010.
Schedule of Expected Benefit Payments	The following table shows estimated future benefit payments from the Company’s pension plans (in millions): Year Estimated Benefit Payments 2024 $ 47 2025 $ 47 2026 $ 49 2027 $ 46 2028 $ 48 2029-2033 $ 246
United States
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Allocation of Plan Assets	December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities: Domestic $ — $ — $ — $ — Fixed income and cash equivalents: Corporate bonds 12 82 — 94 Government debt — 20 — 20 Total United States plan assets subject to leveling $ 12 $ 102 $ — 114 Plan assets measured at NAV: Equities 69 Real assets 11 Fixed income and cash equivalents 110 Absolute return strategies 37 Total United States plan assets $ 341
Foreign Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Allocation of Plan Assets	December 31, 2023 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 57 — 57 Fixed income — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 69 $ — 69 Plan assets measured at NAV: Equities 28 Fixed income and cash equivalents 122 Absolute return strategies and other 62 Total non-United States plan assets $ 281 December 31, 2022 Asset Category Level 1 Level 2 Level 3 Total Equities $ — $ 1 $ — $ 1 Fixed income and cash equivalents: Cash and cash equivalents — 56 — 56 Corporate bonds — 11 — 11 Total non-United States plan assets subject to leveling $ — $ 68 $ — 68 Plan assets measured at NAV: Equities 22 Fixed income and cash equivalents 127 Absolute return strategies 85 Total non-United States plan assets $ 302

POSTEMPLOYMENT AND POSTRETIRE_2

POSTEMPLOYMENT AND POSTRETIREMENT BENEFITS OTHER THAN PENSIONS (Tables)	12 Months Ended
	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations	The following tables provide a reconciliation of the change in the projected benefit obligation, the change in plan assets and the net amount recognized in the Consolidated Balance Sheets (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 638 $ 326 $ 964 $ 841 $ 476 $ 1,317 Service cost 3 3 6 5 4 9 Interest cost 29 16 45 23 11 34 Actuarial (gain) loss (21) 9 (12) (174) (103) (277) Currency loss (gain) — 11 11 — (38) (38) Benefits paid (36) (20) (56) (58) (18) (76) Settlements/curtailments (247) (42) (289) — (4) (4) Other — 1 1 1 (2) (1) Benefit obligation at end of period $ 366 $ 304 $ 670 $ 638 $ 326 $ 964
Schedule of Amounts Recognized in Balance Sheet	The following table presents the amount recorded and respective location in the Consolidated Balance sheets (in millions): December 31, 2023 December 31, 2022 Location U.S. Non-U.S. Total U.S. Non-U.S. Total Prepaid pension cost Other non-current assets $ — $ 23 $ 23 $ — $ 21 $ 21 Accrued pension cost – current Other current liabilities — (2) (2) (1) (2) (3) Accrued pension cost – non-current Pension plan liability (25) (44) (69) (35) (43) (78) Total amount recorded $ (25) $ (23) $ (48) $ (36) $ (24) $ (60)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial loss $ (191) $ (74) $ (265) $ (340) $ (72) $ (412) Net prior service cost — (5) (5) — (5) (5) Total amount recorded $ (191) $ (79) $ (270) $ (340) $ (77) $ (417)
Schedule of Assumptions Used to Determine Benefit Obligations	The following table presents weighted average assumptions used to determine benefit obligations at the measurement dates: December 31, 2023 2022 United States Plans Discount rate 5.00 % 5.15 % Cash balance interest crediting rate 4.63 % 3.77 % Non-United States Plans Discount rate 4.62 % 5.02 % Rate of compensation increase 3.25 % 3.31 %
Other Postretirement Benefits Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Schedule of Changes in Projected Benefit Obligations	The following table provides a reconciliation of the change in the projected benefit obligation and the net amount recognized in the Consolidated Balance Sheets for the years ended December 31, 2023 and 2022 (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Change in Projected Benefit Obligation Benefit obligation at beginning of period $ 115 $ 10 $ 125 $ 151 $ 13 $ 164 Service cost 1 — 1 1 — 1 Interest cost 5 1 6 4 — 4 Actuarial gain (2) — (2) (30) (2) (32) Currency gain — — — — (1) (1) Benefits paid (11) — (11) (11) — (11) Benefit obligation at end of period $ 108 $ 11 $ 119 $ 115 $ 10 $ 125 Funded status $ (108) $ (11) $ (119) $ (115) $ (10) $ (125)
Schedule of Amounts Recognized in Balance Sheet	The following table presents the amount recorded and respective location in the Consolidated Balance sheet (in millions): December 31, 2023 December 31, 2022 U.S. Non-U.S. Total U.S. Non-U.S. Total Location Accrued benefit obligation – current Other current liabilities $ (11) $ (1) $ (12) $ (11) $ (1) $ (12) Accrued benefit obligation – non-current Other employee benefits liability (97) (10) (107) (104) (9) (113) Net amount recorded $ (108) $ (11) $ (119) $ (115) $ (10) $ (125)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The following table represents the amounts recorded to Accumulated Other Comprehensive Income (in millions): December 31, 2023 December 31, 2022 Amounts Recorded in AOCI U.S. Non-U.S. Total U.S. Non-U.S. Total Net actuarial (loss) gain $ (54) $ (4) $ (58) $ 60 $ 5 $ 65 Net prior service credit — — — — — — Total amount recorded $ (54) $ (4) $ (58) $ 60 $ 5 $ 65
Schedule of Assumptions Used to Determine Benefit Obligations	December 31, 2023 2022 United States plans Discount rate 4.90 % 5.10 % Rate of compensation increase N/A N/A Non-United States plans Discount rate 5.64 % 5.93 % Rate of compensation increase 3.00 % 3.00 %
Schedule of Net Benefit Costs	The following table presents the components of net periodic postretirement benefit income (in millions): Twelve Months Ended December 31, 2023 2022 2021 United States plans Service cost $ 1 $ 1 $ 1 Interest cost 5 4 4 Amortization of prior service credit — — (1) Amortization of actuarial loss (8) (7) (8) Net periodic postretirement benefit income $ (2) $ (2) $ (4)
Schedule of Assumptions Used to Determine Net Benefit Cost	The following table presents the discount rates used to determine net periodic postretirement benefit income: Twelve Months Ended December 31, 2023 2022 2021 United States plans 5.10 % 2.70 % 2.25 % Non-United States plans 5.93 % 3.63 % 3.04 %
Schedule of Health Care Cost Trend Rates	The following table presents health care cost trend rates used to determine net periodic postretirement benefit income, as well as information regarding the ultimate rate and the year in which the ultimate rate is reached: Twelve Months Ended December 31, 2023 2022 2021 United States plans: Initial rate at end of year 11.27 % 8.86 % 8.10 % Ultimate rate 4.50 % 4.50 % 4.50 % Year in which ultimate rate is reached 2033 2031 2029 Non-United States plans: Initial rate at end of year 4.97 % 4.65 % 4.25 % Ultimate rate 4.31 % 4.13 % 3.87 % Year in which ultimate rate is reached 2037 2040 2040
Schedule of Expected Benefit Payments	The following table shows estimated future benefit payments from the Company’s postretirement benefit plans (in millions): Year Estimated Benefit Payments 2024 $ 12 2025 $ 12 2026 $ 11 2027 $ 11 2028 $ 11 2029-2033 $ 46

STOCK COMPENSATION (Tables)

STOCK COMPENSATION (Tables)	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Disclosure of Share-based Compensation Expense	Stock-based compensation expense included in Marketing and administrative expenses in the accompanying Consolidated Statements of Earnings is as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Total stock-based compensation expense $ 51 $ 51 $ 50 Income tax benefit recognized on stock-based compensation expense $ 14 $ 11 $ 14
Schedule of Share-based Compensation, Stock Options, Activity	The following table summarizes the Company’s stock option activity in 2023: Weighted-Average Number of Options Exercise Price Remaining Intrinsic Value (in millions) Outstanding, December 31, 2022 27,000 $ 37.65 1.10 $ 1 Exercised (17,900) 37.65 Outstanding, December 31, 2023 9,100 $ 37.65 0.10 $ 1 Exercisable, December 31, 2023 9,100 $ 37.65 0.10 $ 1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable	The total cash received from the exercise of stock options and the resulting tax benefits received were as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Cash received upon exercise of stock option awards $ 1 $ 1 $ 11 Income tax benefit received for stock option awards exercised $ — $ — $ 4
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	The following table shows a summary of the Company’s RSUs: Number of Weighted- Balance at January 1, 2023 1,276,160 $ 69.16 Granted 408,890 104.27 Vested (391,096) 68.32 Forfeited (68,286) 87.10 Balance at December 31, 2023 1,225,668 $ 79.72
Share-Based Payment Arrangement, Performance Shares, Activity	The following table provides a summary of the grant date fair values of the internal Company-based metric PSUs: Twelve Months Ended December 31, 2023 2022 2021 Grant date fair value of units granted $92.97 $87.06 $78.01
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions	The following table provides a summary of the assumptions for PSUs granted in 2023, 2022 and 2021: Twelve Months Ended December 31, 2023 2022 2021 Expected volatility 44.66% 41.65% 42.74% — 43.67% Risk free interest rate 3.75% 1.36% 0.18% — 0.24% Expected term (in years) 2.91 2.91 2.56 — 2.90 Grant date fair value of units granted $119.33 $122.69 $99.19 — $127.37
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest	The following table shows a summary of the Company's PSUs: Number of Weighted- Average Grant Date Fair Value Balance as of January 1, 2023 303,716 $ 91.47 Granted 266,149 95.01 Vested (245,697) 84.74 Forfeited (55,491) 94.98 Balance as of December 31, 2023 268,677 $ 100.57
Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity	The following table shows a summary of employee purchase activity under the ESPP: Twelve Months Ended December 31, 2023 2022 2021 Total shares purchased by employees 287,732 293,364 289,945 Average purchase price $ 83.51 $ 74.19 $ 66.68

CHANGES IN ACCUMULATED OTHER _2

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT (Tables)	12 Months Ended
	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table summarizes the changes in accumulated other comprehensive income (deficit) (in millions): Twelve Months Ended December 31, 2023 2022 Currency Translation Adjustment Beginning balance $ (380) $ (279) Net investment hedge amounts classified into AOCI, net of tax — 4 Gain (loss) on foreign currency translation 62 (105) Other comprehensive income (loss), net of tax 62 (101) Ending balance $ (318) $ (380) Pension and Other Postretirement Adjustment Beginning balance $ (301) $ (318) Amounts reclassified from AOCI to net earnings, net of tax (a) — 5 Pension annuity settlement charge reclassified from AOCI, net of tax (b) 109 — Amounts classified into AOCI, net of tax (4) 12 Other comprehensive income, net of tax 105 17 Ending balance $ (196) $ (301) Hedging Adjustment Beginning balance $ — $ 16 Amounts reclassified from AOCI to net earnings, net of tax (c) 39 (44) Amounts classified into AOCI, net of tax (28) 28 Other comprehensive income (loss), net of tax 11 (16) Ending balance $ 11 $ — Total AOCI ending balance $ (503) $ (681) (a) These AOCI components are included in the computation of total Pension and Other Postretirement cost and are recorded in Non-operating expense (income), net. See Notes 14 and 15 for additional information. (b) These amounts reclassified from AOCI relate to a pension annuity settlement which occurred in the fourth quarter of 2023. See Note 14 for additional information. (c) Amounts reclassified from (loss) gain on cash flow hedges are reclassified from AOCI to income when the hedged item affects earnings and is recognized in Cost of sales or Interest expense, net depending on the hedged item. See Note 4 for additional information.

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table is a reconciliation of weighted-average shares for calculating basic and diluted earnings per-share (in millions, except per share amounts): Twelve Months Ended December 31, 2023 2022 2021 Net earnings attributable to Owens Corning $ 1,196 $ 1,241 $ 995 Weighted-average number of shares outstanding used for basic earnings per share 90.1 96.6 103.5 Non-vested restricted and performance shares 0.9 1.1 0.8 Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings per share 91.0 97.7 104.3 Earnings per common share attributable to Owens Corning common stockholders: Basic $ 13.27 $ 12.85 $ 9.61 Diluted $ 13.14 $ 12.70 $ 9.54

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Income before Income Tax, Domestic and Foreign	The following table summarizes our Earnings before taxes and Income tax expense (in millions): Twelve Months Ended December 31, 2023 2022 2021 Earnings before taxes: United States $ 1,360 $ 1,286 $ 868 Foreign 231 328 445 Total $ 1,591 $ 1,614 $ 1,313
Schedule of Components of Income Tax Expense (Benefit), By Jurisdiction	Income tax expense: Current United States $ 286 $ 180 $ 139 State and local 62 38 27 Foreign 65 125 90 Total current 413 343 256 Deferred United States (4) 50 53 State and local 5 (6) (3) Foreign (13) (14) 13 Total deferred (12) 30 63 Total income tax expense $ 401 $ 373 $ 319
Schedule of Effective Income Tax Rate Reconciliation	The reconciliation between the United States federal statutory rate and the Company’s effective income tax rate from continuing operations is: Twelve Months Ended December 31, 2023 2022 2021 United States federal statutory rate 21 % 21 % 21 % State and local income taxes, net of federal tax benefit 3 2 3 Foreign tax credits — — (1) R&D Credits — (1) — Other, net 1 1 1 Effective tax rate 25 % 23 % 24 %
Schedule of Deferred Tax Assets and Liabilities	The cumulative temporary differences giving rise to the deferred tax assets and liabilities are as follows (in millions): December 31, 2023 December 31, 2022 Deferred Deferred Deferred Deferred Other employee benefits $ 57 $ — $ 59 $ — Pension plans 13 — 16 — Operating loss and tax credit carryforwards 92 — 108 — Depreciation — 363 — 334 Capitalized R&D 53 — 24 — Leases - right of use assets — 70 — 70 Leases - liabilities 62 — 56 — Amortization — 293 — 298 Inventory 30 — 24 — Foreign tax credit carryforwards 53 — 52 — Other 103 — 120 — Subtotal 463 726 459 702 Valuation allowances (140) — (129) — Total deferred taxes $ 323 $ 726 $ 330 $ 702
Summary of Operating Loss and Tax Credit Carryforwards	The following table summarizes the amount and expiration dates of our deferred tax assets related to operating loss and tax credit carryforwards and foreign tax credit carryforwards at December 31, 2023 (in millions) (a): Expiration Amounts Domestic loss and tax credit carryforwards 2024-2036 $ 85 Foreign loss and tax credit carryforwards (b) 2024 - Indefinite 60 Total operating loss and tax credit carryforwards $ 145 (a) The use of certain of the Company's domestic loss carryforwards is limited pursuant to Internal Revenue Code (IRC) Section 382. IRC Section 382 imposes an annual limitation on a corporation's ability to use loss carryforwards that arose before a change in control. A change in control is generally defined as a cumulative change of more than 50% in the ownership positions of certain stockholders during a rolling three-year period. The Company believes that these limitations will not result in the loss of any of the loss carryforwards. (b)
Summary of Income Tax Contingencies	A reconciliation of the beginning and ending amounts of unrecognized tax benefits is as follows (in millions): Twelve Months Ended December 31, 2023 2022 2021 Balance at beginning of period $ 71 $ 74 $ 76 Tax positions related to the current year Gross additions — — — Tax positions related to prior years Gross additions — 2 1 Gross reductions — — (1) Settlements — (1) (1) Expiration of statute of limitations (1) (3) (1) Impact of currency changes — (1) — Balance at end of period $ 70 $ 71 $ 74

BUSINESS AND SUMMARY OF SIGNI_4

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Millions		3 Months Ended		12 Months Ended
	Feb. 01, 2024 $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) segment $ / shares	Dec. 31, 2022 USD ($) $ / shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($)
Property Plant And Equipment [Line Items]
Number of reportable segments | segment				3
Dividend (dollars per share) | $ / shares				$ 2.16	$ 1.57	$ 1.13
Revenue, remaining performance obligation		$ 7		$ 7
Contract with customer, liability		101	$ 89	101	$ 89	$ 76	$ 66
Contract with customer, liability, revenue recognized				18	17	17
Marketing and advertising expense				134	125	110
Restricted cash and cash equivalents		8	8	8	8	7
Investments in affiliates		$ 29	27	$ 29	27
Precious metals depletion, percentage		2%		2%
Foreign currency transaction gain (loss)				$ (2)	(4)	1
Related part expenses				92	129	87
Finance lease, liability		$ 154		154
Payments on long-term debt				$ 0	0	193
Goodwill impairment charge		0	0
Arkansas
Property Plant And Equipment [Line Items]
Proceeds from sale of property and equipment		$ 165
Term of contract (in years)		10 years		10 years
Finance lease, liability		$ 165		$ 165
Term (in years)		10 years
Stated rate		6.70%		6.70%
Payments on long-term debt		$ 165
Related Party
Property Plant And Equipment [Line Items]
Due to related party supplier		$ 5	$ 3	$ 5	$ 3	$ 1
Subsequent Event
Property Plant And Equipment [Line Items]
Dividend (dollars per share) | $ / shares	$ 0.60
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2040-01-01 | Minimum
Property Plant And Equipment [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period		16 years		16 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2044-01-01 | Maximum
Property Plant And Equipment [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period		20 years		20 years

BUSINESS AND SUMMARY OF SIGNI_5

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - PROPERTY, PLANT AND EQUIPMENT USEFUL LIFE (Details)	Dec. 31, 2023
Building and Building Improvements | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	15 years
Building and Building Improvements | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	40 years
Furnaces | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	4 years
Furnaces | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	15 years
Technology Equipment | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	5 years
Technology Equipment | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	10 years
Equipment | Minimum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	5 years
Equipment | Maximum
Property Plant And Equipment [Line Items]
Property, plant and equipment estimated useful lives	20 years

BUSINESS AND SUMMARY OF SIGNI_6

BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - OUTSTANDING OBLIGATIONS UNDER SUPPLIER FINANCE PROGRAMS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Supplier Finance Programs [Roll Forward]
Confirmed obligations outstanding at the beginning of the year	$ 234	$ 226
Invoices confirmed during the year	569	656
Confirmed invoices paid during the year	(592)	(648)
Confirmed obligations outstanding at the end of the year	$ 211	$ 234

SEGMENT INFORMATION - Narrative

SEGMENT INFORMATION - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 segment
Segment Reporting [Abstract]
Number of reportable segments	3

SEGMENT INFORMATION - Net Sales

SEGMENT INFORMATION - Net Sales by Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales	$ 9,677	$ 9,761	$ 8,498
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(307)	(271)	(236)
United States
Disaggregation of Revenue [Line Items]
Net sales	7,094	6,792	5,696
United States | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(304)	(266)	(230)
Europe
Disaggregation of Revenue [Line Items]
Net sales	1,279	1,492	1,384
Europe | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(3)	(5)	(6)
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	577	716	746
Asia Pacific | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Rest of World
Disaggregation of Revenue [Line Items]
Net sales	727	761	672
Rest of World | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	0	0	0
Composites | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	2,286	2,660	2,341
Composites | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,204	1,224	949
Composites | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	492	671	653
Composites | Asia Pacific | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	429	550	552
Composites | Rest of World | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	161	215	187
Insulation | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,668	3,714	3,184
Insulation | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	2,276	2,319	1,899
Insulation | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	771	805	718
Insulation | Asia Pacific | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	147	160	187
Insulation | Rest of World | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	474	430	380
Roofing | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	4,030	3,658	3,209
Roofing | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,918	3,515	3,078
Roofing | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	19	21	19
Roofing | Asia Pacific | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1	6	7
Roofing | Rest of World | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	92	116	105
Roofing and Insulation | Customer Concentration Risk | Revenue Benchmark
Disaggregation of Revenue [Line Items]
Net sales	$ 1,000		$ 895
Concentration risk percentage	11%		11%
Residential | United States
Disaggregation of Revenue [Line Items]
Net sales	$ 5,251	4,968	$ 4,234
Residential | United States | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(296)	(262)	(230)
Residential | Composites | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	359	352	312
Residential | Insulation | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,407	1,523	1,194
Residential | Roofing | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	3,781	3,355	2,958
Commercial and Industrial Sector | United States
Disaggregation of Revenue [Line Items]
Net sales	1,843	1,824	1,462
Commercial and Industrial Sector | United States | Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Net sales	(8)	(4)	0
Commercial and Industrial Sector | Composites | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	845	872	637
Commercial and Industrial Sector | Insulation | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	869	796	705
Commercial and Industrial Sector | Roofing | United States | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 137	$ 160	$ 120

SEGMENT INFORMATION - EBIT by S

SEGMENT INFORMATION - EBIT by Segment (Details) - USD ($) $ in Millions		3 Months Ended		12 Months Ended
	Nov. 24, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Restructuring costs				$ (169)	$ (48)	$ (34)
Gain on sale of Santa Clara, California site				189	0	0
Gain on sale of land in India				0	0	15
Gain on sale of Shanghai, China facility				0	27	0
Gains on sale of certain precious metals				2	18	53
Goodwill impairment charge		$ 0	$ 0
Intangible assets impairment charge				0	(96)	0
Acquisition and divestiture-related costs				0	(7)	0
Recognition of acquisition inventory fair value step-up				0	0	(1)
Paroc marine recall				(15)	0	0
Loss on sale of Chambery, France DUCS business				0	(30)	0
Loss on sale of Russian operations	$ (33)			0	(33)	0
Gain on remeasurement of Fiberteq equity investment				0	130	0
General corporate expense and other				(230)	(179)	(160)
Total Corporate, other and eliminations				1,667	1,723	1,448
Pension settlement losses				(145)	0	0
Composites | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				242	498	376
Insulation | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				619	612	446
Roofing | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				1,174	831	753
Total Segments | Operating Segments
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				2,035	1,941	1,575
Corporate Eliminations
Segment Reporting Information [Line Items]
Total Corporate, other and eliminations				(368)	(218)	(127)
Pension Plan
Segment Reporting Information [Line Items]
Pension settlement losses				(145)	1	0
Foreign Plan | Pension Plan
Segment Reporting Information [Line Items]
Pension settlement losses				$ (7)	$ 1	$ 0

SEGMENT INFORMATION - Total Ass

SEGMENT INFORMATION - Total Assets and Property, Plant and Equipment by Geographic Region (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total Assets	$ 11,237	$ 10,752
Cash and cash equivalents	1,615	1,099
Noncurrent deferred income taxes	24	16
Investments in affiliates	29	27
Assets held for sale	0	45
Corporate property, plant and equipment, net	619	536
Property, plant and equipment, net	3,841	3,729
Composites | Operating Segments
Segment Reporting Information [Line Items]
Total Assets	3,153	3,202
Insulation | Operating Segments
Segment Reporting Information [Line Items]
Total Assets	3,934	3,930
Roofing | Operating Segments
Segment Reporting Information [Line Items]
Total Assets	1,863	1,897
Total Segments | Operating Segments
Segment Reporting Information [Line Items]
Total Assets	8,950	9,029
United States
Segment Reporting Information [Line Items]
Property, plant and equipment, net	2,508	2,383
Europe
Segment Reporting Information [Line Items]
Property, plant and equipment, net	606	541
Asia Pacific
Segment Reporting Information [Line Items]
Property, plant and equipment, net	462	541
Other Geographical
Segment Reporting Information [Line Items]
Property, plant and equipment, net	$ 265	$ 264

SEGMENT INFORMATION - Provision

SEGMENT INFORMATION - Provision For Depreciation and Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Depreciation and amortization	$ 609	$ 531	$ 502
Charges related to cost reduction actions	(20)	(39)	20
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation and amortization	163	88	73
Roofing | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	64	62	59
Insulation | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	210	206	208
Composites | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	172	175	162
Total Segments | Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization	446	443	429
Accelerated Depreciation And Amortization
Segment Reporting Information [Line Items]
Charges related to cost reduction actions	$ 101	$ 26	$ 13

SEGMENT INFORMATION - Additions

SEGMENT INFORMATION - Additions to Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	$ 526	$ 446	$ 416
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	67	49	65
Composites | Operating Segments
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	212	151	153
Insulation | Operating Segments
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	182	196	144
Roofing | Operating Segments
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	65	50	54
Total Segments | Operating Segments
Segment Reporting Information [Line Items]
Property, plant and equipment, additions	$ 459	$ 397	$ 351

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Finished goods	$ 742	$ 843
Materials and supplies	456	491
Total inventories	$ 1,198	$ 1,334

DERIVATIVE FINANCIAL INSTRUME_3

DERIVATIVE FINANCIAL INSTRUMENTS - BALANCE SHEET (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Designated as Hedging Instrument | Cash Flow Hedging | Energy Related Derivative
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	$ 0	$ 2
Derivative Liability, Fair Value, Net	15	32
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	1	1
Derivative Liability, Fair Value, Net	$ 1	$ 2

DERIVATIVE FINANCIAL INSTRUME_4

DERIVATIVE FINANCIAL INSTRUMENTS - INCOME STMT (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Designated as Hedging Instrument | Energy Related Derivative
Derivative Instruments Gain Loss [Line Items]
Amount of (gain) loss reclassified from AOCI into earnings	$ 52	$ (52)	$ (15)
Designated as Hedging Instrument | Interest Rate Swap
Derivative Instruments Gain Loss [Line Items]
Amount of gain recognized in earnings on derivative amounts excluded from effectiveness testing	0	(1)	(5)
Not Designated as Hedging Instrument | Foreign Exchange Contract
Derivative Instruments Gain Loss [Line Items]
Amount of loss recognized in earnings (ineffective portion)	10	(29)	(41)
Not Designated as Hedging Instrument | Treasury interest rate lock
Derivative Instruments Gain Loss [Line Items]
Amount of loss recognized in earnings (ineffective portion)	0	(6)	$ 0
Net Investment Hedging | Cross Currency Interest Rate Contract
Derivative Instruments Gain Loss [Line Items]
Amount of loss recognized in earnings (ineffective portion)	0	(5)
Cash Flow Hedging | Energy Related Derivative
Derivative Instruments Gain Loss [Line Items]
Amount of loss recognized in earnings (ineffective portion)	(15)	40
Cash Flow Hedging | Treasury interest rate lock
Derivative Instruments Gain Loss [Line Items]
Amount of loss recognized in earnings (ineffective portion)	$ 0	$ (20)

DERIVATIVE FINANCIAL INSTRUME_5

DERIVATIVE FINANCIAL INSTRUMENTS - NARRATIVE (Details) MMBTU in Millions, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) MMBTU	Dec. 31, 2022 USD ($) MMBTU	Dec. 31, 2020 USD ($)
Derivative [Line Items]
Notional amount, energy measure | MMBTU			7	8
Cross Currency Interest Rate Contract
Derivative [Line Items]
Proceeds from derivative instrument		$ 11
Interest Rate Lock Commitments
Derivative [Line Items]
Notional amount					$ 175
Fixed interest rate					0.994%
Foreign currency transactional gains, net of associated derivative activity	$ 6
Cash received upon settlement				$ 37
Amortized portion part of interest expense for future issuance of debt			$ 31
Euros | Foreign Exchange Forward
Derivative [Line Items]
Notional amount			45
United States | Foreign Exchange Forward
Derivative [Line Items]
Notional amount			183
Cash Flow Hedging | Energy Related Derivative
Derivative [Line Items]
Net unrecognized loss included in AOCI			15
Loss to be reclassified into earnings in the next 12 months			15
Foreign currency transactional gains, net of associated derivative activity			$ 15	$ (40)

GOODWILL AND OTHER INTANGIBLE_3

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2023 USD ($) intangible_asset	Dec. 31, 2022 USD ($) intangible_asset	Dec. 31, 2023 USD ($) intangible_asset	Dec. 31, 2022 USD ($) intangible_asset	Dec. 31, 2021 USD ($)
Finite-Lived Intangible Assets [Line Items]
Goodwill impairment charge	$ 0	$ 0
Impairment of indefinite-lived intangible assets	$ 0
Non-cash impairment charge		$ 96
Number of intangible assets impaired | intangible_asset		5		5
Amortization of intangible assets			$ 94	$ 55	$ 49
Charges related to cost reduction actions			(20)	$ (39)	$ 20
Accelerated amortization
Finite-Lived Intangible Assets [Line Items]
Charges related to cost reduction actions			$ 25
Maximum
Finite-Lived Intangible Assets [Line Items]
Weighted average useful life	45 years		45 years
Insulation
Finite-Lived Intangible Assets [Line Items]
Number of intangible assets at increased risk of impairment | intangible_asset	2		2
Insulation | Trade name
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge		$ 63
Insulation | Trademarks
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge		12
Insulation | Trademarks | United States
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge		8
Roofing | Trademarks
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charge		$ 13

GOODWILL AND OTHER INTANGIBLE_4

GOODWILL AND OTHER INTANGIBLE ASSETS - ROLLFORWARD (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Gross Goodwill [Roll Forward]
Goodwill, gross, beginning balance	$ 2,318	$ 1,953
Acquisitions (see Note 7)	(1)	415
Foreign currency translation	23	(50)
Goodwill, gross, ending balance	2,340	2,318
Accumulated Impairment Loss [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	935	963
Foreign currency translation	(13)	28
Goodwill, Impaired, Accumulated Impairment Loss	948	935
Goodwill, net	1,392	1,383
Composites
Gross Goodwill [Roll Forward]
Goodwill, gross, beginning balance	425	75
Acquisitions (see Note 7)	(1)	353
Foreign currency translation	1	(3)
Goodwill, gross, ending balance	425	425
Accumulated Impairment Loss [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Foreign currency translation	0	0
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Goodwill, net	425	425
Insulation
Gross Goodwill [Roll Forward]
Goodwill, gross, beginning balance	1,499	1,481
Acquisitions (see Note 7)	0	62
Foreign currency translation	21	(44)
Goodwill, gross, ending balance	1,520	1,499
Accumulated Impairment Loss [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	935	963
Foreign currency translation	(13)	28
Goodwill, Impaired, Accumulated Impairment Loss	948	935
Goodwill, net	572	564
Roofing
Gross Goodwill [Roll Forward]
Goodwill, gross, beginning balance	394	397
Acquisitions (see Note 7)	0	0
Foreign currency translation	1	(3)
Goodwill, gross, ending balance	395	394
Accumulated Impairment Loss [Roll Forward]
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Foreign currency translation	0	0
Goodwill, Impaired, Accumulated Impairment Loss	0	0
Goodwill, net	$ 395	$ 394

GOODWILL AND OTHER INTANGIBLE_5

GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Intangible Assets [Line Items]
Indefinite-lived trademarks and trade names	$ 992	$ 989
Gross Carrying Amount	2,018	2,035
Accumulated Amortization	(490)	(433)
Net Carrying Amount	1,528	1,602
Trademarks
Intangible Assets [Line Items]
Gross Carrying Amount	12	12
Accumulated Amortization	(2)	0
Net Carrying Amount	10	12
Customer Relationships
Intangible Assets [Line Items]
Gross Carrying Amount	614	638
Accumulated Amortization	(283)	(243)
Net Carrying Amount	331	395
Technology
Intangible Assets [Line Items]
Gross Carrying Amount	326	330
Accumulated Amortization	(203)	(187)
Net Carrying Amount	123	143
Other
Intangible Assets [Line Items]
Gross Carrying Amount	74	66
Accumulated Amortization	(2)	(3)
Net Carrying Amount	$ 72	$ 63

GOODWILL AND OTHER INTANGIBLE_6

GOODWILL AND OTHER INTANGIBLE ASSETS - INTANGIBLE ASSETS (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Schedule of Intangible Assets by Major Class [Line Items]
Intangible assets, net	$ 1,528	$ 1,602
European building and technical insulation trade name
Schedule of Intangible Assets by Major Class [Line Items]
Intangible assets, net	90
Global cellular glass insulation trademark
Schedule of Intangible Assets by Major Class [Line Items]
Intangible assets, net	$ 80

GOODWILL AND OTHER INTANGIBLE_7

GOODWILL AND OTHER INTANGIBLE ASSETS - ESTIMATED AMORTIZATION EXPENSE (Details) $ in Millions	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 65
2025	58
2026	44
2027	35
2028	$ 34

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property Plant And Equipment [Line Items]
Property, plant, and equipment, gross	$ 7,498	$ 7,129
Accumulated depreciation	(3,657)	(3,400)
Property, plant and equipment, net	$ 3,841	$ 3,729
Precious metals percentage	10%	10%
Increase to property, plant and equipment		$ 18
Depreciation	$ 481	447	$ 429
Accelerated depreciation related to cost reduction actions	76	26	$ 13
Land
Property Plant And Equipment [Line Items]
Property, plant, and equipment, gross	168	166
Buildings and Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, plant, and equipment, gross	1,263	1,221
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, plant, and equipment, gross	5,402	5,220
Construction in Progress
Property Plant And Equipment [Line Items]
Property, plant, and equipment, gross	$ 665	522
Other Nonoperating Income (Expense)
Property Plant And Equipment [Line Items]
Increase to property, plant and equipment		$ 18

ACQUISITIONS (Details)

ACQUISITIONS (Details) - USD ($) $ in Millions						3 Months Ended	12 Months Ended
	Sep. 01, 2022	Aug. 01, 2022	Jun. 01, 2022	May 23, 2022	Jul. 13, 2021	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Gain on equity method investment							$ 0	$ 130	$ 0
Goodwill						$ 1,392	$ 1,392	1,383
Fiberteq LLC
Business Acquisition [Line Items]
Voting interest acquired	50%
Consideration to be paid as part of business acquisition	$ 140
Business Combination, Additional Consideration Transferred						$ 6
Carrying value	17
Fair value of equity method investments	147
Gain on equity method investment								$ 130
Unfavorable contract liability	62
Goodwill	$ 242
Percentage of goodwill tax deductible	50%
Fiberteq LLC | Customer Relationships
Business Acquisition [Line Items]
Intangible assets acquired other than goodwill	$ 58
Weighted average useful life	3 years
Natural Polymers, LLC
Business Acquisition [Line Items]
Consideration to be paid as part of business acquisition		$ 111
Intangible assets acquired other than goodwill		44
Goodwill, expected tax deductible amount		$ 62
Natural Polymers, LLC | Customer Relationships
Business Acquisition [Line Items]
Weighted average useful life		17 years
Finite-lived intangible assets acquired		$ 27
Natural Polymers, LLC | Trademarks
Business Acquisition [Line Items]
Weighted average useful life		10 years
Finite-lived intangible assets acquired		$ 5
Natural Polymers, LLC | Technology-Based Intangible Assets
Business Acquisition [Line Items]
Weighted average useful life		6 years
Finite-lived intangible assets acquired		$ 12
WearDeck
Business Acquisition [Line Items]
Consideration to be paid as part of business acquisition			$ 133
Intangible assets acquired other than goodwill			38
Goodwill			68
Goodwill, expected tax deductible amount			$ 61
WearDeck | Customer Relationships
Business Acquisition [Line Items]
Weighted average useful life			15 years
Finite-lived intangible assets acquired			$ 21
WearDeck | Trademarks
Business Acquisition [Line Items]
Weighted average useful life			10 years
Finite-lived intangible assets acquired			$ 7
WearDeck | Technology-Based Intangible Assets
Business Acquisition [Line Items]
Weighted average useful life			11 years
Finite-lived intangible assets acquired			$ 10
Pultron Composites
Business Acquisition [Line Items]
Voting interest acquired				65.50%
Consideration to be paid as part of business acquisition				$ 47
Goodwill				42
Goodwill, expected tax deductible amount				37
Redeemable noncontrolling interest				25
Assets acquired				$ 65
Pultron Composites | Technology-Based Intangible Assets
Business Acquisition [Line Items]
Weighted average useful life				15 years
Finite-lived intangible assets acquired				$ 15
Vliepa GmbH
Business Acquisition [Line Items]
Consideration to be paid as part of business acquisition					$ 42
Intangible assets acquired other than goodwill					13
Goodwill					$ 16
Vliepa GmbH | Customer Relationships
Business Acquisition [Line Items]
Weighted average useful life					12 years

DIVESTITURES (Details)

DIVESTITURES (Details) - USD ($) $ in Millions				3 Months Ended		12 Months Ended
	Mar. 03, 2023	Nov. 24, 2022	Jul. 01, 2022	Mar. 31, 2023	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Divestitures [Line Items]
Assets held for sale						$ 0	$ 45
Loss on sale of Russian operations		$ 33				$ 0	$ 33	$ 0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]						Other expense (income), net	Other expense (income), net	Other expense (income), net
Santa Clara Insulation Site | CALIFORNIA
Business Divestitures [Line Items]
Proceeds from divestiture	$ 234
Non-refundable deposit					$ 50
Gain on sale				$ 189
Composites And Insulation | Russia
Business Divestitures [Line Items]
Proceeds from divestiture		$ 104
Chambery, France Manufacturing Assets | Disposal Group, Held-for-sale, Not Discontinued Operations
Business Divestitures [Line Items]
Proceeds from divestiture			$ 80
Pre-tax loss							$ 30

LEASES - Balance Sheet Informat

LEASES - Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease right-of-use assets	$ 222	$ 204
Finance lease, right-of-use asset	149	127
Total lease assets	371	331
Operating lease, liability, current	62	52
Finance lease , liability, current	32	28
Non-current operating lease liabilities	165	152
Non-current finance lease liabilities	122	103
Total lease liabilities	$ 381	$ 335
Other non-current assets	Other non-current assets	Other non-current assets
Other current liabilities	Other Liabilities, Current	Other Liabilities, Current
Long-term debt, net of current portion	Long-term debt, net of current portion	Long-term debt, net of current portion

LEASES - Lease Related Costs (D

LEASES - Lease Related Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease cost	$ 81	$ 67	$ 69
Finance lease cost
Amortization of right-of-use asset	35	30	23
Interest on lease liabilities	6	4	4
Short-term lease cost	6	12	7
Variable lease cost	$ 8	$ 6	$ 5

LEASES - Narrative (Details)

LEASES - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease, payments	$ 76	$ 68	$ 70
Finance lease payments, financing activities	33	30	23
Finance lease payments, operating activities	6	4	4
Right-of-use asset obtained in exchange for operating lease liability	104	119	81
Right-of-use asset obtained in exchange for finance lease liability	$ 61	$ 70	$ 51

LEASES - Supplemental Informati

LEASES - Supplemental Information Related to Leases (Details)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease, weighted average remaining lease term	4 years 7 months 6 days	4 years 9 months 18 days	4 years 2 months 12 days
Finance lease, weighted average remaining lease term	9 years 6 months	9 years 7 months 6 days	6 years 10 months 24 days
Operating lease, weighted average discount rate, percent	3.79%	3.32%	3.27%
Financing lease, weighted average discount rate, percent	4.02%	3.46%	3.67%

LEASES - Operating and Financin

LEASES - Operating and Financing Lease Liability Maturity (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2024	$ 70
2025	58
2026	43
2027	30
2028	17
2029 and beyond	30
Total minimum lease payments	248
Less: implied interest	21
Present value of future minimum lease payments	227
Less: current operating lease obligations	62	$ 52
Long-term lease obligations	165	152
Finance Lease, Liability, Payment, Due [Abstract]
2024	37
2025	29
2026	20
2027	13
2028	10
2029 and beyond	87
Total minimum lease payments	196
Less: implied interest	42
Present value of future minimum lease payments	154
Less: current finance lease obligations	32	28
Long-term lease obligations	$ 122	$ 103

OTHER CURRENT LIABILITIES (Deta

OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Accounts Payable and Accrued Liabilities [Abstract]
Payroll, vacation pay and incentive compensation	$ 224	$ 233
Income, property, and other non-payroll taxes	91	108
Other	300	338
Total other current liabilities	$ 615	$ 679

WARRANTIES (Details)

WARRANTIES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Movement In Standard And Extended Product Warranty Increase Decrease [Roll Forward]
Product warranty accrual, beginning balance	$ 88	$ 81
Amounts accrued for current year	26	20
Settlements of warranty claims	(17)	(13)
Product warranty accrual, ending balance	$ 97	$ 88

RESTRUCTURING, ACQUISITION AN_3

RESTRUCTURING, ACQUISITION AND DIVESTITURE-RELATED COSTS (Details) - USD ($) $ in Millions			3 Months Ended	12 Months Ended
	Mar. 03, 2023	Jul. 01, 2022	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Apr. 30, 2023	Mar. 31, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring costs				$ 169	$ 48	$ 34
Restructuring costs				20	39	(20)
Restructuring Reserve Roll Forward
Restructuring costs				169	48	34
CALIFORNIA | Santa Clara Insulation Site
Restructuring Cost and Reserve [Line Items]
Proceeds from divestiture	$ 234
Non-refundable deposit			$ 50
Disposal Group, Held-for-sale, Not Discontinued Operations | Chambery, France Manufacturing Assets
Restructuring Cost and Reserve [Line Items]
Pre-tax loss					30
Proceeds from divestiture		$ 80
Severance
Restructuring Reserve Roll Forward
Beginning Balance				11
Ending Balance				22	11
Accelerated amortization
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(25)
Cost of sales | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(76)	(26)	(13)
Cost of sales | Additional Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(26)	(16)	(1)
Cost of sales | Recognition of acquisition inventory fair value step-up
Restructuring Cost and Reserve [Line Items]
Restructuring costs				0	0	(1)
Marketing and administrative expenses | Additional Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(2)	0	(2)
Marketing and administrative expenses | Acquisition and divestiture-related (costs) gains
Restructuring Cost and Reserve [Line Items]
Restructuring costs				0	(7)	0
Other expense (income), net | Additional Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(6)	(41)	10
Other expense (income), net | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(34)	(1)	(11)
Other expense (income), net | Accelerated amortization
Restructuring Cost and Reserve [Line Items]
Restructuring costs				(25)	0	0
Gain on equity method investment | Acquisition and divestiture-related (costs) gains
Restructuring Cost and Reserve [Line Items]
Restructuring costs				0	130	0
Gain on sale of site | Gain on sale of Santa Clara, California site
Restructuring Cost and Reserve [Line Items]
Restructuring costs				189	0	0
Non-operating expense (income), net | Additional Exit Costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs				0	0	(2)
Global Composites Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring costs				16
Restructuring Reserve Roll Forward
Beginning Balance				0
Restructuring costs				16
Payments				0
Accelerated depreciation and other non-cash items				(4)
Ending Balance				12	0
Cumulative charges incurred				16
Global Composites Restructuring | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs				4
Restructuring Reserve Roll Forward
Restructuring costs				4
Global Composites Restructuring | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs				12
Restructuring Reserve Roll Forward
Restructuring costs				12
Building Materials Asia-Pacific Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring costs				18
Restructuring Reserve Roll Forward
Beginning Balance				0
Restructuring costs				18
Payments				(1)
Accelerated depreciation and other non-cash items				(17)
Ending Balance				0	0
Cumulative charges incurred				18
Building Materials Asia-Pacific Optimization | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Expected cost				20
Protective Packaging Exit
Restructuring Cost and Reserve [Line Items]
Restructuring costs				78
Restructuring Reserve Roll Forward
Beginning Balance				0
Restructuring costs				78
Payments				(8)
Accelerated depreciation and other non-cash items				(69)
Ending Balance				1	0
Cumulative charges incurred				78
Protective Packaging Exit | Employee Severance And Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Expected cost				15
Protective Packaging Exit | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs				69
Restructuring Reserve Roll Forward
Restructuring costs				69
Protective Packaging Exit | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs				9
Restructuring Reserve Roll Forward
Restructuring costs				9
Wabash Facility Closure
Restructuring Cost and Reserve [Line Items]
Restructuring costs				33
Restructuring Reserve Roll Forward
Beginning Balance				0
Restructuring costs				33
Payments				(4)
Accelerated depreciation and other non-cash items				(26)
Ending Balance				3	0
Cumulative charges incurred				33
Wabash Facility Closure | Employee Severance And Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Expected cost							$ 30
Wabash Facility Closure | Severance
Restructuring Cost and Reserve [Line Items]
Restructuring costs				33
Restructuring Reserve Roll Forward
Restructuring costs				33
European Operating Structure Optimization
Restructuring Cost and Reserve [Line Items]
Restructuring costs				12
Expected cost								$ 20
Severance Costs				12
Restructuring Reserve Roll Forward
Beginning Balance				0
Restructuring costs				12
Payments				(6)
Accelerated depreciation and other non-cash items				0
Ending Balance				6	0
Cumulative charges incurred				12
Composites Strategic Realignment Actions
Restructuring Cost and Reserve [Line Items]
Restructuring costs				2	9
Restructuring Reserve Roll Forward
Beginning Balance				1	0
Restructuring costs				2	9
Payments				(3)	(2)
Accelerated depreciation and other non-cash items				0
Accelerated depreciation and other non-cash items					(6)
Ending Balance				0	1	0
Cumulative charges incurred				11	9
Composites Strategic Realignment Actions | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs				2
Restructuring Reserve Roll Forward
Restructuring costs				2
Roofing Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Restructuring costs				2	3
Expected cost				2
Restructuring Reserve Roll Forward
Beginning Balance				0	1
Restructuring costs				2	3
Payments				(2)	0
Accelerated depreciation and other non-cash items				0
Accelerated depreciation and other non-cash items					(4)
Ending Balance				0	0	1
Cumulative charges incurred				10	8
Santa Clara Insulation Site
Restructuring Cost and Reserve [Line Items]
Restructuring costs				6	35
Restructuring Reserve Roll Forward
Beginning Balance				7	13
Restructuring costs				6	35
Payments				(12)	(19)
Accelerated depreciation and other non-cash items				(1)
Accelerated depreciation and other non-cash items					(22)
Ending Balance				0	7	13
Cumulative charges incurred				66	60
Santa Clara Insulation Site | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Restructuring costs				6
Restructuring Reserve Roll Forward
Restructuring costs				6
2020 Insulation Restructuring Actions
Restructuring Cost and Reserve [Line Items]
Restructuring costs					2
Restructuring Reserve Roll Forward
Beginning Balance				0	1
Restructuring costs					2
Payments					(1)
Accelerated depreciation and other non-cash items					(2)
Ending Balance					0	1
Cumulative charges incurred					29
Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring costs					(1)
Restructuring Reserve Roll Forward
Beginning Balance				2	5
Restructuring costs					(1)
Payments					(3)
Accelerated depreciation and other non-cash items					1
Ending Balance					2	$ 5
Cumulative charges incurred					$ 26
Minimum | Global Composites Restructuring | Employee Severance And Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Expected cost				20
Minimum | Global Composites Restructuring | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Expected cost				15
Minimum | Protective Packaging Exit | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Expected cost				70
Maximum | Global Composites Restructuring | Employee Severance And Other Exit Costs
Restructuring Cost and Reserve [Line Items]
Expected cost				30
Maximum | Global Composites Restructuring | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Expected cost				20
Maximum | Protective Packaging Exit | Accelerated depreciation
Restructuring Cost and Reserve [Line Items]
Expected cost				$ 75

DEBT - SCHEDULE OF DEBT (Detail

DEBT - SCHEDULE OF DEBT (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt	$ 3,046,000,000	$ 3,020,000,000
Other	1,000,000	2,000,000
Less – current portion of senior notes	399,000,000	0
Less – current portion	32,000,000	28,000,000
Long-term debt, net of current portion	$ 2,615,000,000	$ 2,992,000,000
Notes payable, fair value	100%	100%
Senior Notes, Fair Value Disclosure, Par Value	99%	0%
4.200% senior notes, net of discount and financing fees, due 2024
Debt Instrument [Line Items]
Long-term debt	$ 399,000,000	$ 398,000,000
Notes payable, fair value	99%	99%
3.400% senior notes, net of discount and financing fees, due 2026
Debt Instrument [Line Items]
Long-term debt	$ 398,000,000	$ 398,000,000
Notes payable, fair value	96%	94%
3.950% senior notes, net of discount and financing fees, due 2029
Debt Instrument [Line Items]
Long-term debt	$ 447,000,000	$ 446,000,000
Notes payable, fair value	95%	90%
3.875% senior notes, net of discount and financing fees, due 2030
Debt Instrument [Line Items]
Long-term debt	$ 298,000,000	$ 298,000,000
Notes payable, fair value	94%	89%
7.000% senior notes, net of discount and financing fees, due 2036
Debt Instrument [Line Items]
Long-term debt	$ 369,000,000	$ 368,000,000
Notes payable, fair value	116%	107%
4.300% senior notes, net of discount and financing fees, due 2047
Debt Instrument [Line Items]
Long-term debt	$ 589,000,000	$ 589,000,000
Notes payable, fair value	88%	78%
4.400% senior notes, net of discount and financing fees, due 2048
Debt Instrument [Line Items]
Long-term debt	$ 391,000,000	$ 390,000,000
Notes payable, fair value	87%	78%
Various finance leases, due through 2036
Debt Instrument [Line Items]
Long-term debt	$ 154,000,000	$ 131,000,000
Notes payable, fair value	100%	100%

DEBT (Details)

DEBT (Details) - USD ($)						3 Months Ended		12 Months Ended
	Aug. 12, 2019	Jun. 26, 2017	Aug. 08, 2016	Nov. 12, 2014	Oct. 17, 2012	Sep. 30, 2021	Mar. 31, 2018	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 12, 2020	Jan. 25, 2018	Oct. 31, 2006
Long-Term Debt [Line Items]
Loss on extinguishment of debt						$ 9,000,000		$ 0	$ 0	$ 9,000,000
Other								1,000,000	2,000,000
Borrowing capacity under credit facility								800,000,000
Short-term Debt [Abstract]
Short-term debt								$ 1,000,000	$ 1,000,000
Short term debt, weighted average interest rate								5.10%	2.80%
Long-term debt								$ 3,046,000,000	$ 3,020,000,000
Notes payable, fair value								100%	100%
Notes Payable, Fair Value Disclosure, Par Value								(100.00%)	(100.00%)
4.200% senior notes, net of discount and financing fees, due 2024
Long-Term Debt [Line Items]
Fixed interest, percentage rate								4.20%
Face amount				$ 400,000,000
Short-term Debt [Abstract]
Long-term debt								$ 399,000,000	$ 398,000,000
Notes payable, fair value								99%	99%
Notes Payable, Fair Value Disclosure, Par Value								(99.00%)	(99.00%)
3.875% senior notes, net of discount and financing fees, due 2030
Long-Term Debt [Line Items]
Fixed interest, percentage rate								3.875%
Face amount											$ 300,000,000
Short-term Debt [Abstract]
Long-term debt								$ 298,000,000	$ 298,000,000
Notes payable, fair value								94%	89%
Notes Payable, Fair Value Disclosure, Par Value								(94.00%)	(89.00%)
3.950% senior notes, net of discount and financing fees, due 2029
Long-Term Debt [Line Items]
Fixed interest, percentage rate								3.95%
Face amount	$ 450,000,000
Short-term Debt [Abstract]
Long-term debt								$ 447,000,000	$ 446,000,000
Notes payable, fair value								95%	90%
Notes Payable, Fair Value Disclosure, Par Value								(95.00%)	(90.00%)
7.000% senior notes, net of discount and financing fees, due 2036
Long-Term Debt [Line Items]
Fixed interest, percentage rate								7%
Face amount													$ 550,000,000
Repayments	34,000,000	$ 140,000,000
Short-term Debt [Abstract]
Long-term debt								$ 369,000,000	$ 368,000,000
Notes payable, fair value								116%	107%
Notes Payable, Fair Value Disclosure, Par Value								(116.00%)	(107.00%)
4.400% senior notes, net of discount and financing fees, due 2048
Long-Term Debt [Line Items]
Fixed interest, percentage rate								4.40%
Face amount												$ 400,000,000
Short-term Debt [Abstract]
Long-term debt								$ 391,000,000	$ 390,000,000
Notes payable, fair value								87%	78%
Notes Payable, Fair Value Disclosure, Par Value								(87.00%)	(78.00%)
4.300% senior notes, net of discount and financing fees, due 2047
Long-Term Debt [Line Items]
Fixed interest, percentage rate								4.30%
Face amount		600,000,000
Short-term Debt [Abstract]
Long-term debt								$ 589,000,000	$ 589,000,000
Notes payable, fair value								88%	78%
Notes Payable, Fair Value Disclosure, Par Value								(88.00%)	(78.00%)
3.400% senior notes, net of discount and financing fees, due 2026
Long-Term Debt [Line Items]
Fixed interest, percentage rate								3.40%
Face amount			$ 400,000,000
Short-term Debt [Abstract]
Long-term debt								$ 398,000,000	$ 398,000,000
Notes payable, fair value								96%	94%
Notes Payable, Fair Value Disclosure, Par Value								(96.00%)	(94.00%)
Senior Notes Due 2016
Long-Term Debt [Line Items]
Repayments			$ 158,000,000	242,000,000	$ 250,000,000
9.00% senior notes, net of discount and financing fees, due 2019
Long-Term Debt [Line Items]
Repayments		$ 144,000,000		$ 105,000,000	100,000,000
4.200% senior notes, net of discount and financing fees, due 2022
Long-Term Debt [Line Items]
Face amount					$ 600,000,000
Repayments	$ 416,000,000
Senior Revolving Credit Facility B
Long-Term Debt [Line Items]
Proceeds from issuance of debt							$ 600,000,000
Borrowing capacity under credit facility								$ 800,000,000
Letter of Credit Under Receivables Purchase Agreement
Long-Term Debt [Line Items]
Face amount								280,000,000
Borrowing capacity under credit facility								$ 280,000,000

DEBT - CREDIT FACILITY UTILIZAT

DEBT - CREDIT FACILITY UTILIZATION (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Facility size	$ 800
Senior Revolving Credit Facility B
Debt Instrument [Line Items]
Facility size	800
Outstanding borrowings	0
Outstanding letters of credit	4
Availability on facility	796
Letter of Credit Under Receivables Purchase Agreement
Debt Instrument [Line Items]
Facility size	280
Collateral capacity limitation on availability	0
Outstanding borrowings	0
Outstanding letters of credit	1
Availability on facility	$ 279

DEBT - SCHEDULE OF DEBT MATURIT

DEBT - SCHEDULE OF DEBT MATURITIES (Details) $ in Millions	Dec. 31, 2023 USD ($)
Maturities of Long-term Debt [Abstract]
2024	$ 432
2025	24
2026	416
2027	10
2028	7
2029 and beyond	2,191
Total	$ 3,080

PENSION PLANS (Details)

PENSION PLANS (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2023 USD ($) agreement	Dec. 31, 2023 USD ($) plan	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Number of agreements | agreement	2
Payment for settlement, benefit obligation	$ 291
Payment for settlement, plan assets	268
Pre-tax settlement charge	145
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]		Non-operating expense (income), net	Non-operating expense (income), net	Non-operating expense (income), net
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Settlement/curtailment		$ 145	$ 0	$ 0
Defined Benefit Plans, Accumulated Other Comprehensive Income (Loss), After Tax [Abstract]
Defined Benefit Plan, Target Plan Asset Allocations, Period		30 years
Defined Benefit Plan, Target Plan Asset Allocations Range Amount		25%
Estimated Benefit Payments
2024	12	$ 12
2025	12	12
2026	11	11
2027	11	11
2028	11	11
2029-2033	46	$ 46
Defined Contribution Plan [Abstract]
Defined contribution plans, number of plans | plan		2
Cost Recognized Related to Defined Benefit Plans		$ 65	57	52
Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period		964	1,317
Service cost		6	9	11
Interest cost		45	34	31
Actuarial gain		12	277
Currency gain		11	(38)
Benefits paid		(56)	(76)
Defined Benefit Plan, Settlements / Curtailments		(289)	(4)
Other		1	(1)
Benefit obligation at end of period	670	670	964	1,317
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		904	1,259
Actual return on plan assets		36	(248)
Currency gain (loss)		9	(35)
Company contributions		18	8
Benefits paid		(56)	(76)
Settlements/curtailments		(289)	(4)
Fair Value of Assets at End of Period	622	622	904	1,259
Funded status	(48)	(48)	(60)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Prepaid pension cost	23	23	21
Accrued pension cost – current	(2)	(2)	(3)
Accrued pension cost – non-current	(69)	(69)	(78)
Total amount recorded	(48)	(48)	(60)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial loss	(265)	(265)	(412)
Net prior service cost	(5)	(5)	(5)
Total amount recorded	(270)	(270)	(417)
Plans with PBO in excess of fair value of plan assets:
Projected benefit obligation	587	587	846
Fair value of plan assets	515	515	765
Plans with ABO in excess of fair value of plan assets:
Accumulated benefit obligation	569	569	830
Fair value of plan assets	505	505	755
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost		6	9	11
Expected return on plan assets		(52)	(52)	(54)
Amortization of actuarial (loss) gain		8	13	16
Settlement/curtailment		145	(1)	0
Other		1	0	2
Net periodic postretirement benefit income		153	3	6
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	622	622	904	1,259
Estimated Benefit Payments
2024	47	47
2025	47	47
2026	49	49
2027	46	46
2028	48	48
2029-2033	246	246
United States
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		353
Fair Value of Assets at End of Period	$ 114	$ 114	$ 353
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5%	5%	5.15%
Cash balance interest crediting rate	4.63%	4.63%	3.77%
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	$ 114	$ 114	$ 353
United States | Equities, Domestic
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		39
Fair Value of Assets at End of Period	0	0	39
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	39
United States | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		256
Fair Value of Assets at End of Period	94	94	256
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	94	94	256
United States | Government Debt
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		58
Fair Value of Assets at End of Period	20	20	58
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	20	20	58
United States | Fair Value, Inputs, Level 1
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		65
Fair Value of Assets at End of Period	12	12	65
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	12	12	65
United States | Fair Value, Inputs, Level 1 | Equities, Domestic
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		39
Fair Value of Assets at End of Period	0	0	39
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	39
United States | Fair Value, Inputs, Level 1 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		26
Fair Value of Assets at End of Period	12	12	26
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	12	12	26
United States | Fair Value, Inputs, Level 1 | Government Debt
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | Fair Value, Inputs, Level 2
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		288
Fair Value of Assets at End of Period	102	102	288
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	102	102	288
United States | Fair Value, Inputs, Level 2 | Equities, Domestic
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | Fair Value, Inputs, Level 2 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		230
Fair Value of Assets at End of Period	82	82	230
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	82	82	230
United States | Fair Value, Inputs, Level 2 | Government Debt
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		58
Fair Value of Assets at End of Period	20	20	58
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	20	20	58
United States | Fair Value, Inputs, Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | Fair Value, Inputs, Level 3 | Equities, Domestic
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | Fair Value, Inputs, Level 3 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | Fair Value, Inputs, Level 3 | Government Debt
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
United States | NAV
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		602
Fair Value of Assets at End of Period	341	341	602
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	341	341	602
United States | NAV | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		95
Fair Value of Assets at End of Period	69	69	95
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	69	69	95
United States | NAV | Real assets
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		25
Fair Value of Assets at End of Period	11	11	25
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	11	11	25
United States | NAV | Fixed income and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		87
Fair Value of Assets at End of Period	110	110	87
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	110	110	87
United States | NAV | Absolute return strategies and other
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		42
Fair Value of Assets at End of Period	37	37	42
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	37	37	42
United States | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period		638	841
Service cost		3	5	5
Interest cost		29	23	22
Actuarial gain		21	174
Currency gain		0	0
Benefits paid		(36)	(58)
Defined Benefit Plan, Settlements / Curtailments		(247)	0
Other		0	1
Benefit obligation at end of period	366	366	638	841
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		602	816
Actual return on plan assets		22	(156)
Currency gain (loss)		0	0
Company contributions		0	0
Benefits paid		(36)	(58)
Settlements/curtailments		(247)	0
Fair Value of Assets at End of Period	341	341	602	816
Funded status	(25)	(25)	(36)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Prepaid pension cost	0	0	0
Accrued pension cost – current	0	0	(1)
Accrued pension cost – non-current	(25)	(25)	(35)
Total amount recorded	(25)	(25)	(36)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial loss	(191)	(191)	(340)
Net prior service cost	0	0	0
Total amount recorded	(191)	(191)	(340)
Plans with PBO in excess of fair value of plan assets:
Projected benefit obligation	366	366	638
Fair value of plan assets	341	341	602
Plans with ABO in excess of fair value of plan assets:
Accumulated benefit obligation	366	366	638
Fair value of plan assets	341	341	602
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost		3	5	5
Expected return on plan assets		(37)	(36)	(36)
Amortization of actuarial (loss) gain		5	11	12
Settlement/curtailment		138	0	0
Other		0	0	2
Net periodic postretirement benefit income		$ 138	$ 3	$ 5
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate		5.15%	2.85%	2.50%
Expected return on plan assets		5.75%	4.75%	4.75%
Cash balance interest crediting rate		3.76%	1.26%	0.79%
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	$ 341	$ 341	$ 602	$ 816
Defined Benefit Plan, Plan Assets, Allocations [Abstract]
Percentage of Assets Invested in Equity		23%
Percentage of Assets Invested in Intermediate and Long-term Fixed income Securities		70%
Percentage of Assets Invested in Absolute Return Securities		7%
Defined Contribution Plan [Abstract]
Company Match Regardless of Employee Contribution	2%	2%
Foreign Plan
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		$ 68
Fair Value of Assets at End of Period	$ 69	$ 69	$ 68
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.62%	4.62%	5.02%
Rate of compensation increase	3.25%	3.25%	3.31%
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	$ 69	$ 69	$ 68
Defined Contribution Plan [Abstract]
Expected contributions by employer	20	20
Foreign Plan | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		1
Fair Value of Assets at End of Period	1	1	1
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	1	1	1
Foreign Plan | Cash and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		56
Fair Value of Assets at End of Period	57	57	56
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	57	57	56
Foreign Plan | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		11
Fair Value of Assets at End of Period	11	11	11
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	11	11	11
Foreign Plan | Fair Value, Inputs, Level 1
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at End of Period	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0
Foreign Plan | Fair Value, Inputs, Level 1 | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 1 | Cash and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 1 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 2
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		68
Fair Value of Assets at End of Period	69	69	68
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	69	69	68
Foreign Plan | Fair Value, Inputs, Level 2 | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		1
Fair Value of Assets at End of Period	1	1	1
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	1	1	1
Foreign Plan | Fair Value, Inputs, Level 2 | Cash and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		56
Fair Value of Assets at End of Period	57	57	56
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	57	57	56
Foreign Plan | Fair Value, Inputs, Level 2 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		11
Fair Value of Assets at End of Period	11	11	11
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	11	11	11
Foreign Plan | Fair Value, Inputs, Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 3 | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 3 | Cash and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | Fair Value, Inputs, Level 3 | Corporate bonds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		0
Fair Value of Assets at End of Period	0	0	0
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	0	0	0
Foreign Plan | NAV
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		302
Fair Value of Assets at End of Period	281	281	302
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	281	281	302
Foreign Plan | NAV | Equities
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		22
Fair Value of Assets at End of Period	28	28	22
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	28	28	22
Foreign Plan | NAV | Fixed income and cash equivalents
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		127
Fair Value of Assets at End of Period	122	122	127
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	122	122	127
Foreign Plan | NAV | Absolute return strategies and other
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		85
Fair Value of Assets at End of Period	62	62	85
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	62	62	85
Foreign Plan | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period		326	476
Service cost		3	4	6
Interest cost		16	11	9
Actuarial gain		(9)	103
Currency gain		11	(38)
Benefits paid		(20)	(18)
Defined Benefit Plan, Settlements / Curtailments		(42)	(4)
Other		1	(2)
Benefit obligation at end of period	304	304	326	476
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Assets at Beginning of Period		302	443
Actual return on plan assets		14	(92)
Currency gain (loss)		9	(35)
Company contributions		18	8
Benefits paid		(20)	(18)
Settlements/curtailments		(42)	(4)
Fair Value of Assets at End of Period	281	281	302	443
Funded status	(23)	(23)	(24)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Prepaid pension cost	23	23	21
Accrued pension cost – current	(2)	(2)	(2)
Accrued pension cost – non-current	(44)	(44)	(43)
Total amount recorded	(23)	(23)	(24)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial loss	(74)	(74)	(72)
Net prior service cost	(5)	(5)	(5)
Total amount recorded	(79)	(79)	(77)
Plans with PBO in excess of fair value of plan assets:
Projected benefit obligation	221	221	208
Fair value of plan assets	174	174	163
Plans with ABO in excess of fair value of plan assets:
Accumulated benefit obligation	203	203	192
Fair value of plan assets	164	164	153
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost		3	4	6
Expected return on plan assets		(15)	(16)	(18)
Amortization of actuarial (loss) gain		3	2	4
Settlement/curtailment		7	(1)	0
Other		1	0	0
Net periodic postretirement benefit income		$ 15	$ 0	$ 1
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate		5.02%	2.35%	1.73%
Expected return on plan assets		5%	3.93%	4.08%
Rate of compensation increase		3.31%	3.31%	3%
Defined Benefit Plan, Information about Plan Assets [Abstract]
Assets	$ 281	$ 281	$ 302	$ 443

POSTEMPLOYMENT AND POSTRETIRE_3

POSTEMPLOYMENT AND POSTRETIREMENT BENEFITS OTHER THAN PENSIONS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Estimated Benefit Payments
2024	$ 12
2025	12
2026	11
2027	11
2028	11
2029-2033	46
Postemployment Benefits [Abstract]
Postemployment Benefits Liability	5	$ 5
Postemployment Benefits, Period Expense	1
Postemployment Benefits, Period Income		(1)	$ 1
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period	125	164
Service cost	1	1
Interest cost	6	4
Actuarial gain	(2)	(32)
Currency gain	0	(1)
Benefits paid	(11)	(11)
Benefit obligation at end of period	119	125	164
Funded status	(119)	(125)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Accrued benefit obligation – current	(12)	(12)
Accrued benefit obligation – non-current	(107)	(113)
Total amount recorded	(119)	(125)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial (loss) gain	(58)	65
Net prior service credit	0	0
Total amount recorded	(58)	65
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	1	1
Interest cost	$ 6	$ 4
United States
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5%	5.15%
United States | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Employee Eligible Age	10 years
Defined Benefit Plan, Qualifying Employee Age, Scenario 1	45 years
Defined Benefit Plan, Qualifying Employee Age, Scenario 2	48 years
Defined Benefit Plan, Qualifying Employee Age, Scenario 3	50 years
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period	$ 115	$ 151
Service cost	1	1	1
Interest cost	5	4	4
Actuarial gain	(2)	(30)
Currency gain	0	0
Benefits paid	(11)	(11)
Benefit obligation at end of period	108	115	151
Funded status	(108)	(115)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Accrued benefit obligation – current	(11)	(11)
Accrued benefit obligation – non-current	(97)	(104)
Total amount recorded	(108)	(115)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial (loss) gain	(54)	60
Net prior service credit	0	0
Total amount recorded	$ (54)	$ 60
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.90%	5.10%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 1	$ 1	1
Interest cost	5	4	4
Amortization of prior service credit	0	0	(1)
Amortization of actuarial (loss) gain	(8)	(7)	(8)
Net periodic postretirement benefit income	$ (2)	$ (2)	$ (4)
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	5.10%	2.70%	2.25%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Initial rate at end of year	11.27%	8.86%	8.10%
Ultimate rate	4.50%	4.50%	4.50%
Year in which ultimate rate is reached	2033	2031	2029
Foreign Plan
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	4.62%	5.02%
Rate of compensation increase	3.25%	3.31%
Foreign Plan | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period	$ 10	$ 13
Service cost	0	0
Interest cost	1	0
Actuarial gain	0	(2)
Currency gain	0	(1)
Benefits paid	0	0
Benefit obligation at end of period	11	10	$ 13
Funded status	(11)	(10)
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]
Accrued benefit obligation – current	(1)	(1)
Accrued benefit obligation – non-current	(10)	(9)
Total amount recorded	(11)	(10)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax [Abstract]
Net actuarial (loss) gain	(4)	5
Net prior service credit	0	0
Total amount recorded	$ (4)	$ 5
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	5.64%	5.93%
Rate of compensation increase	3%	3%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 0	$ 0
Interest cost	$ 1	$ 0
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	5.93%	3.63%	3.04%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Initial rate at end of year	4.97%	4.65%	4.25%
Ultimate rate	4.31%	4.13%	3.87%
Year in which ultimate rate is reached	2037	2040	2040

CONTINGENT LIABILITIES AND OT_2

CONTINGENT LIABILITIES AND OTHER MATTERS (Details) $ in Millions	Dec. 31, 2023 USD ($) site
Unusual or Infrequent Item, or Both [Line Items]
Environmental liability sites	22
Environmental liabilities reserve | $	$ 4
Superfund Sites
Unusual or Infrequent Item, or Both [Line Items]
Environmental liability sites	10
Owned or Formerly Owned Sites
Unusual or Infrequent Item, or Both [Line Items]
Environmental liability sites	12
Other Current Liabilities
Unusual or Infrequent Item, or Both [Line Items]
Environmental liabilities reserve | $	$ 1

STOCK COMPENSATION (Details)

STOCK COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 09, 2024	Apr. 16, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation costs related to stock options	$ 0
Grants, weighted average grant date fair value	$ 104.27	$ 90.41	$ 84.03
Intrinsic value of options outstanding	$ 1	$ 1
Intrinsic value of options exercisable	$ 1
Outstanding Options, Weighted Average Remaining Contractual Term	1 month 6 days	1 year 1 month 6 days
Exercisable Options, Weighted Average Remaining Contractual Term	1 month 6 days
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward
Options, Outstanding, Number, Beginning Balance	27,000
Options, Outstanding, Number, Options Exercised	(17,900)
Options, Outstanding, Number, Ending Balance	9,100	27,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Options, Outstanding, Weighted Average Exercise Price, Beginning of Period	$ 37.65
Options, Outstanding, Exercises In Period Weighted Average Exercise Price	37.65
Options, Outstanding, Weighted Average Exercise Price, End of Period	$ 37.65	$ 37.65
Marketing and Administrative Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense	$ 51	$ 51	$ 50
Tax benefit from exercise of stock options	$ 14	$ 11	$ 14
Subsequent Event
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Contributions from employees				$ 5
Stock Plan 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for grant	3,400,000
Performance Stock Units (PSUs) 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grants, weighted average grant date fair value	$ 119.33	$ 122.69
Expected volatility rate	44.66%	41.65%
Risk free interest rate	3.75%	1.36%
Expected term	2 years 10 months 28 days	2 years 10 months 28 days
Performance Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonoptions, Number, Beginning Balance	303,716
Nonoptions, Number, Grants In Period	266,149
Nonoptions, Number, Vested In Period	(245,697)
Nonoptions, Number, Forfeited In Period	(55,491)
Nonoptions, Number, Ending Balance	268,677	303,716
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonoptions, Weighted Average Fair Value, Beginning Balance	$ 91.47
Nonoptions, Weighted Average Fair Value, Grants in Period	95.01
Nonoptions, Weighted Average Fair Value, Vested	84.74
Nonoptions, Weighted Average Fair Value, Forfeited	94.98
Nonoptions, Weighted Average Fair Value, Ending Balance	$ 100.57	$ 91.47
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for grant	3,200,000				4,200,000
Internal Based Performance Metric
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	3 years
Grants, weighted average grant date fair value	$ 92.97	$ 87.06	$ 78.01
Percentage of outstanding stock minimum	0%
Percentage of outstanding stock maximum	200%
External Based Performance Metric
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	3 years
Percentage of outstanding stock minimum	0%
Percentage of outstanding stock maximum	200%
Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Tax benefit from exercise of stock options	$ 0	$ 0	$ 4
Award vesting period (in years)	4 years
Options maximum term	10 years
Cash received from exercise of stock options	$ 1	1	11
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	2 years 5 months 1 day
Total unrecognized compensation cost related to restricted stock	$ 40
Grants in period fair value	$ 27	$ 22	26
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Nonoptions, Number, Beginning Balance	1,276,160
Nonoptions, Number, Grants In Period	408,890
Nonoptions, Number, Vested In Period	(391,096)
Nonoptions, Number, Forfeited In Period	(68,286)
Nonoptions, Number, Ending Balance	1,225,668	1,276,160
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Nonoptions, Weighted Average Fair Value, Beginning Balance	$ 69.16
Nonoptions, Weighted Average Fair Value, Grants in Period	104.27
Nonoptions, Weighted Average Fair Value, Vested	68.32
Nonoptions, Weighted Average Fair Value, Forfeited	87.10
Nonoptions, Weighted Average Fair Value, Ending Balance	$ 79.72	$ 69.16
Performance Shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	1 year 7 months 20 days
Total unrecognized compensation cost related to restricted stock	$ 17
Grants in period fair value	21	$ 9	8
Employee Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost related to restricted stock	$ 3
Offering period (in months)	6 months
Purchase price, percentage of market value	85%
Employee emergence equity program expense	$ 7	$ 6	$ 6
Shares purchased by employees	287,732	293,364	289,945
Average price of shares purchased	$ 83.51	$ 74.19	$ 66.68
Minimum | Performance Stock Units (PSUs) 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grants, weighted average grant date fair value			$ 99.19
Expected volatility rate			42.74%
Risk free interest rate			0.18%
Expected term			2 years 6 months 21 days
Minimum | Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercisable Options, Weighted Average Exercise Price	$ 37.65
Minimum | Restricted Stock Awards and Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	3 years
Maximum | Performance Stock Units (PSUs) 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Grants, weighted average grant date fair value			$ 127.37
Expected volatility rate			43.67%
Risk free interest rate			0.24%
Expected term			2 years 10 months 24 days
Maximum | Restricted Stock Awards and Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period (in years)	4 years

CHANGES IN ACCUMULATED OTHER _3

CHANGES IN ACCUMULATED OTHER COMPREHENSIVE DEFICIT (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 4,596	$ 4,335	[1]	$ 3,941
Gain (loss) on foreign currency translation	61	(104)		(60)
Other comprehensive income (loss), net of tax	177	(103)		7
Ending balance	5,185	4,596		4,335	[1]
AOCI Including Portion Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(681)
Ending balance	(503)	(681)
Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(380)	(279)
Amounts classified into AOCI, net of tax	0	4
Gain (loss) on foreign currency translation	62	(105)
Other comprehensive income (loss), net of tax	62	(101)
Ending balance	(318)	(380)		(279)
Pension and Other Postretirement Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(301)	(318)
Amounts classified into AOCI, net of tax	4	(12)
Amounts reclassified from AOCI to net earnings, net of tax	0	5
Pension annuity settlement charge reclassified from AOCI, net of tax	109	0
Other comprehensive income (loss), net of tax	105	17
Ending balance	(196)	(301)		(318)
Hedging Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0	16
Amounts classified into AOCI, net of tax	28	(28)
Amounts reclassified from AOCI to net earnings, net of tax	39	(44)
Other comprehensive income (loss), net of tax	11	(16)
Ending balance	$ 11	$ 0		$ 16
[1] Dividend declarations of $2.16 per share as of December 31, 2023, $1.57 per share as of December 31, 2022, and $1.13 per share as of December 31, 2021.

EARNINGS PER SHARE (Details)

EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net earnings attributable to Owens Corning	$ 1,196	$ 1,241	$ 995
Weighted-average number of shares outstanding used for basic earnings per share	90.1	96.6	103.5
Non-vested restricted and performance shares	0.9	1.1	0.8
Weighted-average number of shares outstanding and common equivalent shares used for diluted earnings per share	91	97.7	104.3
Basic (dollars per share)	$ 13.27	$ 12.85	$ 9.61
Diluted (dollars per share)	$ 13.14	$ 12.70	$ 9.54

EARNINGS PER SHARE - Narrative

EARNINGS PER SHARE - Narrative (Details) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 share_repurchase_program shares	Dec. 31, 2021 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of share repurchase programs approved | share_repurchase_program		2
Payments for repurchase of equity | $	$ 629
Remaining number of shares authorized to be repurchased	8.9
Antidilutive securities excluded from computation of earnings per share amount	0	0
Performance Shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share amount			0.1
February 2022 Repurchase Authorization
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares authorized to be repurchased		20
Combined Repurchase Programs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Purchase of treasury stock (in shares)	5.4

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
United States	$ 1,360	$ 1,286	$ 868
Foreign	231	328	445
EARNINGS BEFORE TAXES	1,591	1,614	1,313
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current Federal Tax Expense (Benefit)	286	180	139
Current State and Local Tax Expense (Benefit)	62	38	27
Current Foreign Tax Expense (Benefit)	65	125	90
Current Income Tax Expense (Benefit)	413	343	256
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred Federal Income Tax Expense (Benefit)	(4)	50	53
Deferred State and Local Income Tax Expense (Benefit)	5	(6)	(3)
Deferred Foreign Income Tax Expense (Benefit)	(13)	(14)	13
Deferred Income Tax Expense (Benefit)	(12)	30	63
Total income tax expense	$ 401	$ 373	$ 319
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
United States federal statutory rate	21%	21%	21%
State and local income taxes, net of federal tax benefit	3%	2%	3%
Foreign tax credits	0%	0%	1%
R&D Credits	0%	(1.00%)	0%
Other, net	1%	1%	1%
Effective tax rate	25%	23%	24%
Undistributed earnings of foreign subsidiaries	$ 1,500
Components of Deferred Tax Assets [Abstract]
Deferred Tax Assets, Other Employee Benefits	57	$ 59
Deferred Tax Assets, Pension Plans	13	16
Deferred Tax Assets, Operating Loss Carryforwards	92	108
Deferred Tax Assets, Capitalized Research And Development	53	24
Deferred Tax Asset, Lease Liability	62	56
Deferred Tax Assets, Inventory	30	24
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	53	52
Deferred Tax Assets, Other	103	120
Deferred Tax Assets, Gross	463	459
Valuation Allowance, Amount	140	129
Deferred Tax Assets Total	323	330
Components of Deferred Tax Liabilities [Abstract]
Deferred Tax Liabilities, Depreciation	363	334
Deferred Tax Liabilities, Right of Use Assets	70	70
Deferred Tax Liabilities, Amortization	293	298
Deferred Tax Liabilities Total	726	702
Deferred Tax Assets, Operating Loss and Tax Credit Carryforwards [Abstract]
Domestic loss and tax credit carryforwards	85
Foreign loss and tax credit carryforwards	60
Operating Loss And Tax Credit Carryforwards	145
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	71	74	$ 76
Tax Positions Related to Current Year, Gross Additions	0	0	0
Tax Positions Related to Prior Years, Gross Additions	0	2	1
Tax Positions Related to Prior Years, Gross Reductions	0	0	(1)
Settlements	0	(1)	(1)
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations	(1)	(3)	(1)
Impact of currency changes	0	(1)	0
Unrecognized Tax Benefits, Ending Balance	70	71	74
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	58
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities	0	1	1
Income Tax Penalties and Interest [Abstract]
Decrease unrecognized tax benefits in the next 12 months, excluding interest	44
Income Tax Examination, Penalties and Interest Accrued	9	7	7
Income Tax Examination, Penalties and Interest Expense	$ 2	$ 1	$ 2

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) $ in Millions		12 Months Ended
	Feb. 09, 2024 USD ($) manufacturing_facility country	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Subsequent Event [Line Items]
Annual revenue		$ 9,677	$ 9,761	$ 8,498
Subsequent Event | Composites | GR business
Subsequent Event [Line Items]
Annual revenue	$ 1,300
Number of countries | country	11
Subsequent Event | Composites | GR business | Manufacturing Facility
Subsequent Event [Line Items]
Number of manufacturing facilities | manufacturing_facility	18
Masonite, Outstandig Shares | Subsequent Event
Subsequent Event [Line Items]
Estimated purchase price for acquisition	$ 3,900

SCHEDULE II - VALUATION AND Q_2

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS AND RESERVES (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for Doubtful Accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		$ 11	$ 9	$ 10
Charged to Costs and Expenses		1	3	1
Charged to Other Accounts		0	0	0
Deductions	[1]	(1)	(1)	(2)
Balance at End of Period		11	11	9
Tax Valuation Allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period		129	132	133
Charged to Costs and Expenses		11	5	11
Charged to Other Accounts		1	(2)	8
Deductions		(1)	(6)	(20)
Balance at End of Period		$ 140	$ 129	$ 132
[1] Uncollectible accounts written off, net of recoveries.