Note 1 - Significant Accounting Policies	3 Months Ended
Mar. 31, 2022
Notes to Financial Statements
Significant Accounting Policies [Text Block]	1. Significant Accounting Policies *Basis of Presentation* In these notes, the terms “Corning,” “Company,” “we,” “us,” or “our” mean Corning Incorporated and its subsidiary companies. The accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been omitted or condensed. These interim consolidated financial statements should be read in conjunction with Corning’s consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2021 (“2021 Form 10-K”). The unaudited consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair statement of the results of operations, financial position and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. The results for 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. Certain prior year amounts have been reclassified to conform to the current-year presentation. These reclassifications had no impact on the results of operations, financial position, or changes in shareholders’ equity. *New Accounting Standards* In November 2021, the FASB issued Accounting Standards Update ("ASU") 2021-10 Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance, effective for financial statements issued for annual periods beginning after December 15, 2021. ASU 2021-10 requires business entities to disclose information in the notes to the financial statements about certain types of government assistance. The annual disclosure requirements apply to transactions with a government that are accounted for by analogizing to either a grant model or a contribution model. We plan to adopt ASU 2020-10 when we issue our annual financial statements. We do not expect it to have a material impact on our consolidated financial statements. *Other Accounting Standards* No other accounting standards, newly issued or adopted as of March 31, 2022, had a material impact on Corning’s financial statements or disclosures.

Note 1 - Significant Accounting Policies

3 Months Ended

Mar. 31, 2022

Significant Accounting Policies [Text Block]

1. Significant Accounting Policies

Basis of Presentation

In these notes, the terms “Corning,” “Company,” “we,” “us,” or “our” mean Corning Incorporated and its subsidiary companies.

The accompanying unaudited consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”) for interim financial information. Certain information and note disclosures normally included in financial statements prepared in accordance with GAAP have been omitted or condensed. These interim consolidated financial statements should be read in conjunction with Corning’s consolidated financial statements and notes thereto included in its Annual Report on Form 10-K for the year ended December 31, 2021 (“2021 Form 10-K”).

The unaudited consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair statement of the results of operations, financial position and cash flows for the interim periods presented. All such adjustments are of a normal recurring nature. The results for 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.

Certain prior year amounts have been reclassified to conform to the current-year presentation. These reclassifications had no impact on the results of operations, financial position, or changes in shareholders’ equity.

New Accounting Standards

In November 2021, the FASB issued Accounting Standards Update ("ASU") 2021-10 Government Assistance (Topic 832): Disclosures by Business Entities about Government Assistance, effective for financial statements issued for annual periods beginning after December 15, 2021. ASU 2021-10 requires business entities to disclose information in the notes to the financial statements about certain types of government assistance. The annual disclosure requirements apply to transactions with a government that are accounted for by analogizing to either a grant model or a contribution model. We plan to adopt ASU 2020-10 when we issue our annual financial statements. We do not expect it to have a material impact on our consolidated financial statements.

Other Accounting Standards

No other accounting standards, newly issued or adopted as of March 31, 2022, had a material impact on Corning’s financial statements or disclosures.