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Variable Interest Entities | 9 Months Ended
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Sep. 30, 2025
Disclosure Variable Interest Entities Schedule Of Equity Method Investments [Abstract] |
Variable Interest Entities | NOTE 2. VARIABLE INTEREST ENTITIES Regions is involved in various entities that are considered to be VIEs, as defined by authoritative accounting literature. Generally, a VIE is a corporation, partnership, trust or other legal structure that either does not have equity investors with substantive voting rights or has equity investors that do not provide sufficient financial resources for the entity to support its activities. The following discusses the VIEs in which Regions has a significant interest. Regions periodically invests in various limited partnerships that sponsor affordable housing projects and economic development projects, which then provide tax credits to Regions. These investments are funded through a combination of debt and equity. These partnerships meet the definition of a VIE and are collectively referred to as tax credit investments in the table below. Due to the nature of the management activities of the general partner, Regions is not the primary beneficiary of these partnerships. Refer to Note 1 "Summary of Significant Accounting Policies" in the Annual Report on Form 10-K for the year ended December 31, 2024 for additional details. Additionally, Regions has loans or letters of credit commitments with certain limited partnerships. The funded portion of the loans and letters of credit are classified as commercial and industrial loans or investor real estate loans as applicable in Note 4 . A summary of Regions’ tax credit investments and related loans and letters of credit, representing Regions’ maximum exposure to loss, is as follows:
| September 30, 2025 |  | December 31, 2024
| (In millions)
Tax credit investments included in other assets | $ | 1,473 |  |  | $ | 1,471 |
Unfunded tax credit commitments included in other liabilities | 485 |  |  | 590 |
Loans and letters of credit commitments | 545 |  |  | 663 |
Funded portion of loans and letters of credit commitments | 311 |  |  | 336 |
| Three Months Ended September 30 |  | Nine Months Ended September 30
| 2025 |  | 2024 |  | 2025 |  | 2024
| (In millions)
Tax credits and other tax benefits recognized | $ | 57 |  |  | $ | 59 |  |  | $ | 169 |  |  | $ | 175 |
Tax credit amortization expense included in income tax expense | 47 |  |  | 49 |  |  | 142 |  |  | 142
In addition to the investments discussed above, Regions also syndicates affordable housing investments. In these syndication transactions, Regions creates affordable housing funds in which a subsidiary is the general partner or managing member and sells limited partnership interests to third parties. Regions' general partner or managing member interest represents an insignificant interest in the affordable housing fund. The affordable housing funds meet the definition of a VIE. As Regions is not the primary beneficiary, these investments are not consolidated. At September 30, 2025 and December 31, 2024, the value of Regions’ general partnership interest in affordable housing investments was immaterial.

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- Definition Disclosure - Variable Interest Entities (Schedule Of Equity Method Investments) [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478156/740-323-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 323 -Publisher FASB -URI https://asc.fasb.org/323/tableOfContent + Details
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