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Summary of Significant Accounting Policies | 9 Months Ended
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Sep. 30, 2025
Accounting Policies [Abstract] |
Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation and Principles of Consolidation In these notes, the terms “Corning,” “Company,” “we,” “us,” or “our” mean Corning Incorporated and its subsidiary companies. The consolidated financial statements include the accounts of Corning Incorporated and our consolidated subsidiaries (collectively, the “Company”), consisting of our wholly-owned subsidiaries and those entities in which we have a variable interest and of which we are the primary beneficiary, and are consolidated in conformity with accounting principles generally accepted in the United States of America (“GAAP”). In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments, consisting of normal recurring adjustments, necessary to state fairly the financial position, results of operations and cash flows for the periods presented. All intercompany accounts, transactions and profits have been eliminated. Certain information and footnote disclosures normally included in financial statements prepared in accordance with GAAP have been omitted pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”). These consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024 (“2024 Form 10-K”). The results of operations for the interim periods are not necessarily indicative of results which may be expected for any other interim period or for the full year. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues, expenses and the disclosure of contingent assets and liabilities in the consolidated financial statements and accompanying notes. Significant estimates and assumptions in these consolidated financial statements require the exercise of judgment. Due to the inherent uncertainty involved in making estimates, actual results could differ materially from these estimates. The results of businesses acquired in business combinations are included in the Company’s consolidated financial statements from the date of acquisition. Refer to Note 3 (Acquisition) for additional information. The non-controlling interest as recorded in the consolidated financial statements represents amounts attributable to the minority shareholders of less-than-wholly-owned consolidated subsidiaries, including Hemlock Semiconductor Group (“HSG”) and other subsidiaries primarily within our Optical Communications segment. Certain prior year amounts have been reclassified to conform to the current year presentation, including the recast of the Company’s segment related disclosures to align with the new reportable segments as of January 1, 2025. Refer to Note 16 (Reportable Segments) for additional information. These reclassifications had no impact on the results of operations, financial position or changes in shareholders’ equity.

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- Definition The entire disclosure for all significant accounting policies of the reporting entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/235/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483426/235-10-50-1 + Details
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