General	12 Months Ended
General	Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General Nature of Business On July 6, 2022, Schweitzer-Mauduit International, Inc. ("SWM") consummated its previously announced merger transaction involving Neenah, Inc. ("Neenah"). A wholly-owned subsidiary of SWM merged with and into Neenah (the "Merger"), with Neenah surviving the Merger as a direct and wholly-owned subsidiary of SWM. Effective as of the closing date of the Merger, SWM changed its name to Mativ Holdings, Inc. ("Mativ," "we," "our", or the "Company"). Mativ is a global leader in specialty materials headquartered in Alpharetta, Georgia, United States of America. The Company offers a wide range of critical components and engineered solutions to solve customers' most complex challenges, targeting premium applications across diversified and growing end-markets. Combined with global manufacturing, supply chain, innovation, and material science capabilities, our broad portfolio of technologies combines polymers, fibers, and resins to optimize the performance of customers' products across multiple stages of the value chain. Effective with the Merger, the Company changed the name of its two reporting segments to: Advanced Technical Materials ("ATM") and Fiber-Based Solutions ("FBS"). There was no change to the historical reporting segments or historical results for the segments. Refer to Note 21. Segment Information for additional information on our segments. We conduct business in over 100 countries and operate 47 production locations worldwide, with offices and facilities in the United States, United Kingdom, China, Germany, France, Belgium, Poland, India, Brazil, Canada, Spain, Italy, Mexico, Netherlands, Malaysia, and Luxembourg. We also have a 50% equity interest in two joint ventures in China. Refer to Note 9. Joint Ventures for additional information over these equity method investments. Basis of Presentation The accompanying consolidated financial statements and the notes thereto have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expenses during the reporting periods. The Company believes the estimates and assumptions used in the preparation of these consolidated financial statements are reasonable, based upon currently available facts and known circumstances. Actual results may differ from those estimates and assumptions as a result of a number of factors, including those discussed elsewhere in this report and in its other public filings from time to time. Reclassifications Certain prior year amounts on the Consolidated Balance Sheets and Consolidated Statements of Cash Flows have been reclassified to conform to the current year presentation for comparative purposes. Prior year's classification of certain end-markets in the legacy SWM Advanced Materials & Structures segment have been reclassified to conform to the current year presentation of ATM's end-markets for comparative purposes. Certain prior year amounts in the reconciliation of income taxes computed at the U.S. Federal statutory income tax rate to the expense for income taxes have been reclassified to conform to the current year presentation for comparative purposes. Principles of Consolidation The consolidated financial statements include the accounts of the Company and wholly-owned, majority-owned and controlled subsidiaries. Investment in equity affiliates represents the Company’s investment in its 50%-owned joint ventures in China and the Company's share of the net income from the joint ventures is included in the Consolidated Statements of Income (Loss) as Income from equity affiliates, net of income taxes. Refer to Note 9. Joint Ventures for additional information. Intercompany balances and transactions have been eliminated. The financial statements and information set forth herein is as of and for the year ended December 31, 2022 and represent the merged company operations of SWM and Neenah and their respective subsidiaries on a consolidated basis effective as of July 6, 2022 as a result of the Merger. Because SWM was deemed the accounting acquirer under GAAP, the historical financial statements of SWM are presented as the historical financial statements of the consolidated company prior to the Merger. Accordingly, references to "Mativ," "the Company," "we," or "our" means SWM and its subsidiaries when referring to periods prior to the Merger, and means Mativ Holdings, Inc. when referring to the periods after the Merger. Use of Estimates The preparation of financial statements in conformity with GAAP requires estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the revenues and expenses during the reporting period. Actual results could differ significantly from these estimates. The significant estimates underlying our consolidated financial statements include, but are not limited to, inventory valuation, useful lives of tangible and intangible assets, business acquisitions, equity-based compensation, derivatives, receivables valuation, pension, postretirement and other benefits, taxes and contingencies.