BASIS OF PRESENTATION (Policies)	3 Months Ended
Mar. 31, 2026
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Form 10-Q instructions and in the opinion of management contain all adjustments, including those that are normal, recurring and necessary to present fairly the financial position, results of operations and cash flows for the periods presented. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. These interim financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2025 of Avient Corporation. When used in this Quarterly Report on Form 10-Q, the terms “we,” “us,” “our,” “Avient” and the “Company” mean Avient Corporation and its consolidated subsidiaries. Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be attained in subsequent periods or for the year ending December 31, 2026.
Accounting Standards Adopted and Accounting Standards Not Yet Adopted	Accounting Standards Adopted In July 2025, the FASB issued ASU 2025-05, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05). This accounting standard provides a practical expedient allowing entities to assume that current conditions as of the balance sheet date remain unchanged over the remaining life of the asset when estimating expected credit losses. The Company adopted the ASU effective January 1, 2026 on a prospective basis. The adoption did not have a material impact on the Company's allowance for doubtful accounts. Accounting Standards Not Yet Adopted In November 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (ASU 2024-03). This accounting standard requires disaggregated income statement expense disclosures on an annual and interim basis, including inventory purchases, employee compensation, depreciation, and intangible asset amortization for each income statement line item that contains theses expenses. The standard also requires disclosure of total selling expenses on an annual and interim basis, and the definition of those expenses disclosed annually. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, and may be applied prospectively or retrospectively. The Company is evaluating the impact of ASU 2024-03. As the standard will only impact its disclosures, there will be no material impact to the consolidated financial statements. In September 2025, the FASB issued ASU 2025-06, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) Targeted Improvements to the Accounting for Internal-Use Software (ASU 2025-06). This accounting standard changes when software project costs should be capitalized by removing all references to development stages and requiring costs to be capitalized when (1) the Company authorizes and commits to funding the software project and (2) it is probable the software project will be completed. The standard also requires additional annual and interim disclosures, including the capitalized software balance and accumulated amortization. ASU 2025-06 is effective for annual reporting periods, including interim reporting periods within those annual periods, beginning after December 15, 2027, with early adoption permitted and may be applied prospectively, retrospectively, or using a modified prospective transition approach. The Company is evaluating the impact of ASU 2025-06 and expects the standard will not have a material impact on the consolidated financial statements and related disclosures.

BASIS OF PRESENTATION (Policies)

3 Months Ended

Mar. 31, 2026

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with Form 10-Q instructions and in the opinion of management contain all adjustments, including those that are normal, recurring and necessary to present fairly the financial position, results of operations and cash flows for the periods presented. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. These interim financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Annual Report on Form 10-K for the year ended December 31, 2025 of Avient Corporation. When used in this Quarterly Report on Form 10-Q, the terms “we,” “us,” “our,” “Avient” and the “Company” mean Avient Corporation and its consolidated subsidiaries.

Operating results for the three months ended March 31, 2026 are not necessarily indicative of the results that may be attained in subsequent periods or for the year ending December 31, 2026.

Accounting Standards Adopted and Accounting Standards Not Yet Adopted

Accounting Standards Adopted

In July 2025, the FASB issued ASU 2025-05, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets (ASU 2025-05). This accounting standard provides a practical expedient allowing entities to assume that current conditions as of the balance sheet date remain unchanged over the remaining life of the asset when estimating expected credit losses. The Company adopted the ASU effective January 1, 2026 on a prospective basis. The adoption did not have a material impact on the Company's allowance for doubtful accounts.

Accounting Standards Not Yet Adopted

In November 2024, the FASB issued ASU 2024-03, Income Statement — Reporting Comprehensive Income — Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (ASU 2024-03). This accounting standard requires disaggregated income statement expense disclosures on an annual and interim basis, including inventory purchases, employee compensation, depreciation, and intangible asset amortization for each income statement line item that contains theses expenses. The standard also requires disclosure of total selling expenses on an annual and interim basis, and the definition of those expenses disclosed annually. ASU 2024-03 is effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027, and may be applied prospectively or retrospectively. The Company is evaluating the impact of ASU 2024-03. As the standard will only impact its disclosures, there will be no material impact to the consolidated financial statements.

In September 2025, the FASB issued ASU 2025-06, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40) Targeted Improvements to the Accounting for Internal-Use Software (ASU 2025-06). This accounting standard changes when software project costs should be capitalized by removing all references to development stages and requiring costs to be capitalized when (1) the Company authorizes and commits to funding the software project and (2) it is probable the software project will be completed. The standard also requires additional annual and interim disclosures, including the capitalized software balance and accumulated amortization. ASU 2025-06 is effective for annual reporting periods, including interim reporting periods within those annual periods, beginning after December 15, 2027, with early adoption permitted and may be applied prospectively, retrospectively, or using a modified prospective transition approach. The Company is evaluating the impact of ASU 2025-06 and expects the standard will not have a material impact on the consolidated financial statements and related disclosures.