DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	12 Months Ended
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Moody’s is a global provider of integrated perspectives on risk that empowers organizations and investors to make better decisions. Moody’s reports in two reportable segments: MA and MIS. MA is comprised of: i) a premier fixed income and economic research business (Research & Insights); ii) a curated data business powered by an extensive database on companies and credit (Data & Information); and iii) three cloud-based subscription businesses serving banking, insurance, and KYC workflows (Decision Solutions). MA leverages its industry expertise across multiple risks such as credit, market, financial crime, supply chain, catastrophe and climate to deliver integrated risk assessment solutions that enable business leaders to identify, measure and manage the implications of interrelated risks and opportunities. MIS publishes credit ratings and provides assessment services on a wide range of debt obligations, programs and facilities, and the entities that issue such obligations in markets worldwide, including various corporate, financial institution and governmental obligations, and structured finance securities. Certain reclassifications have been made to prior period amounts to conform to the current presentation. Adoption of New Accounting Standards in 2025 In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" ("ASU No. 2023-09"), which is intended to enhance the transparency and decision usefulness of income tax disclosures. The amendments in ASU No. 2023-09 require entities to disclose additional income tax information, primarily related to greater disaggregation of the entity's ETR reconciliation and income taxes paid by jurisdiction disclosures. This ASU is effective for annual periods beginning after December 15, 2024, and should be applied on a prospective basis; however, retrospective application is permitted. The Company adopted this ASU retrospectively for all periods presented with the new required disclosures presented in Note 15. 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", which amends Topic 326 to provide a practical expedient and an accounting policy election related to the estimation of expected credit losses for current accounts receivable and current contract assets that arise from transactions accounted for under ASC 606. Specifically, in developing reasonable and supportable forecasts as part of estimating expected credit losses on accounts receivable, entities may elect a practical expedient that assumes that current conditions as of the balance sheet date do not change for the remaining life of the asset. This ASU is effective for annual reporting periods beginning after December 15, 2025, and interim reporting periods within those annual reporting periods, with early adoption permitted. The Company early adopted this ASU in the fourth quarter of 2025, and applied it prospectively as of January 1, 2025, in accordance with the transition provisions for early adoption. The adoption of this ASU did not have a material impact on the financial statements. Reclassification of Previously Reported Transaction and Recurring Revenue In the first quarter of 2025, the Company reclassified certain prior-year transaction and recurring revenue amounts to align with a refined classification methodology. The impact of the reclassifications was not material, and the reclassified amounts for 2024 and 2023 are reflected in Note 3.