DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	3 Months Ended
DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION	Mar. 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 a global provider of: i) decision solutions; ii) research and insights; and iii) data and information, which help companies make better and faster decisions. 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. These interim financial statements have been prepared in accordance with the instructions to Form 10-Q and should be read in conjunction with the Company’s consolidated financial statements and related notes in the Company’s 2024 annual report on Form 10-K filed with the SEC on February 14, 2025. The results of interim periods are not necessarily indicative of results for the full year or any subsequent period. In the opinion of management, all adjustments (including normal recurring accruals) considered necessary for a fair presentation of financial position, results of operations and cash flows at the dates and for the periods presented have been included. The year-end consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. Certain reclassifications have been made to prior period amounts to conform to the current presentation. Recently Issued Accounting Standards 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 is currently evaluating the impact of adopting this ASU on its consolidated financial statements and disclosures. 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 No. 2024-03"). The amendments in this ASU require more detailed disclosures about specific expense categories in the notes to financial statements (including employee compensation, depreciation and intangible asset amortization) and apply to both interim and annual reporting periods. ASU No. 2024-03 also requires disclosure of total selling expenses for both interim and annual reporting periods, with an additional requirement to provide an entity’s definition of selling expenses in annual reporting. This ASU is effective in fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Early adoption is permitted. The amendments in this ASU should be applied either (1) prospectively for annual and interim reporting periods beginning after the aforementioned effective dates or (2) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of adopting this ASU on its consolidated financial statements and disclosures. 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 were not material, and the reclassified amounts for 2024 are reflected in Note 3.