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Basis of Presentation and Accounting Policies | 3 Months Ended
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Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Basis of Presentation and Accounting Policies | Basis of Presentation and Accounting Policies The accompanying unaudited consolidated financial statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information and notes necessary for complete financial statements in accordance with GAAP. In the opinion of management, the accompanying unaudited consolidated financial statements contain all significant adjustments, consisting of normal and recurring items, considered necessary for fair presentation. These interim financial statements should be read in conjunction with FHN's audited consolidated financial statements and notes in FHN's Annual Report on Form 10-K for the year ended December 31, 2024. Operating results for the interim period are not necessarily indicative of the results that may be expected for the full year. All significant intercompany balances and transactions have been eliminated in consolidation. Certain amounts reported in prior years have been reclassified to conform to the current period presentation. See the Glossary included in this Report for terms used herein. Summary of Accounting Changes ASU 2023-07 In November 2023, the FASB issued ASU 2023-07, "Improvements to Reportable Segment Disclosures" that requires public entities to provide disclosures of significant segment expenses and other segment items on an annual and interim basis and to provide in interim periods all disclosures about a reportable segment's profit or loss and assets that are currently required annually. The ASU requires a public entity to disclose, for each reportable segment, the significant expense categories and amounts that are regularly provided to the chief operating decision-maker ("CODM") and included in each reported measure of a segment's profit or loss. ASU 2023-07 also requires disclosure of the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023 and for interim periods beginning after December 15, 2024. FHN adopted ASU 2023-07 as of December 31, 2024 and its requirements have been applied retrospectively to all periods presented in Note 12 — Business Segment Information. Accounting Changes Issued But Not Currently Effective ASU 2023-09 In December 2023, the FASB issued ASU 2023-09, "Improvements to Income Tax Disclosures" to enhance transparency and decision usefulness of income tax disclosures. The provisions of this ASU require disaggregated information about a reporting entity's effective tax rate reconciliation in both percentages and reporting currency amounts. Certain categories of reconciling items are required by the ASU with additional categories required if a specified quantitative threshold is met. Reporting entities are also required to provide a qualitative discussion of the primary state and local jurisdictions for income taxes and the type of reconciling categories. ASU 2023-09 also requires disaggregation of income taxes paid by jurisdiction. For public business entities, ASU 2023-09 is effective for annual periods beginning after December 31, 2024. The guidance will be applied on a prospective basis with the option to apply the standard retrospectively. Early adoption is permitted. FHN is currently assessing the impact of adopting ASU 2023-09 on its income tax disclosures. ASU 2024-03 In November 2024, the FASB issued ASU 2024-03, "Disaggregation of Income Statement Expenses" that requires tabular disclosure, on an annual and interim basis, of additional disaggregated information about prescribed expense categories if they are present in any expense caption on the face of the income statement within continuing operations. The prescribed categories applicable to FHN are employee compensation, depreciation, and intangible asset amortization. Other required expense disclosures must be included in the tabular disclosure when they are included in the same income statement caption as a prescribed expense category. ASU 2024-03 also requires disclosure of the total amount of selling expenses and, annually, an entity’s definition of selling expenses. ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and for interim periods beginning after December 15, 2027. The guidance is required to be applied prospectively. Early adoption and retrospective application are permitted. FHN is currently assessing the effects of adopting ASU 2024-03 on its financial statement disclosures. SEC Final Rule In March 2024, the SEC adopted final rules, “The Enhancement and Standardization of Climate-Related Disclosures for Investors” (the “Climate Disclosures Rules”) to require registrants to disclose certain climate-related information in registration statements and annual reports. Information required for inclusion within the footnotes to the financial statements for severe weather events and other natural conditions includes 1) income statement effects before insurance recoveries above 1% of pre-tax income/loss, 2) balance sheet effects above 1% of shareholders’ equity, and 3) certain carbon offsets and renewable energy credits. Qualitative discussion is also required for material impacts on financial estimates and assumptions that are due to severe weather events and other natural conditions or disclosed climate-related targets or transition plans. In April 2024, the SEC issued a stay of the Climate Disclosures Rules pending the completion of judicial review of various legal challenges. On March 27, 2025, the SEC voted to end the legal defense of the Climate Disclosures Rules. The SEC has not voted to withdraw the Climate Disclosures Rules. Therefore, the actual timing of the implementation of the Climate Disclosures Rules, if sustained through the judicial process and not withdrawn or modified by the SEC, is uncertain. FHN is assessing the potential effects of the Climate Disclosures Rules on its financial statements.

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