Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The Condensed Consolidated Financial Statements include the accounts of the Bancorp and its majority-owned subsidiaries and VIEs in which the Bancorp has been determined to be the primary beneficiary. Other entities, including certain joint ventures in which the Bancorp has the ability to exercise significant influence over operating and financial policies of the investee, but upon which the Bancorp does not possess control, are accounted for by the equity method and not consolidated. The investments in those entities in which the Bancorp does not have the ability to exercise significant influence are generally carried at fair value unless the investment does not have a readily determinable fair value. The Bancorp accounts for equity investments without a readily determinable fair value using the measurement alternative to fair value, representing the cost of the investment minus any impairment recorded and plus or minus changes resulting from observable price changes in orderly transactions for an identical or a similar investment of the same issuer. Intercompany transactions and balances among consolidated entities have been eliminated. In the opinion of management, the unaudited Condensed Consolidated Financial Statements include all adjustments, which consist of normal recurring accruals, necessary to present fairly the results for the periods presented. In accordance with U.S. GAAP and the rules and regulations of the SEC for interim financial information, these statements do not include certain information and footnote disclosures required for complete annual financial statements and it is suggested that these Condensed Consolidated Financial Statements be read in conjunction with the Bancorp’s Annual Report on Form 10-K. The results of operations, comprehensive income, cash flows and changes in equity for the three months ended March 31, 2026 and 2025 are not necessarily indicative of the results to be expected for the full year. Financial information as of December 31, 2025 has been derived from the Bancorp’s Annual Report on Form 10-K. The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.
Accounting and Reporting Developments	Standard Adopted in 2026 The Bancorp adopted the following new accounting standard during the three months ended March 31, 2026: ASU 2025-08 – Financial Instrument – Credit Losses (Topic 326): Purchased Loans In November 2025, the FASB issued ASU 2025-08, which modifies the accounting for purchased financial assets by expanding the gross-up approach for recognizing the estimate of expected credit losses to purchased seasoned loans, which includes non-purchased credit deteriorated loans (excluding credit cards and leases) purchased at least 90 days after origination and the acquirer was not involved in the origination, or loans acquired in a business combination. Upon acquisition, PSLs should be accounted for under the gross-up approach, which includes recognizing an allowance and an offsetting entry as an addition to the fair value of the loan, resulting in an initial amortized cost basis in an amount equal to the sum of the purchase price plus the ACL. The difference, if any, between the amortized cost basis (as adjusted for expected credit losses) and the unpaid principal balance is recognized as a noncredit discount or premium and accreted or amortized into interest income. The amended guidance largely eliminates the day 1 credit loss expense for non-PCD acquired financial assets. The amended guidance also introduces an accounting policy election for entities that use a method other than a discounted cash flow analysis to estimate credit losses on PSLs, which allows the use of the amortized cost basis rather than the unpaid principal balance when subsequently measuring the ACL, applied on an individual-acquisition basis. As permitted, the Bancorp early adopted the amended guidance and the related accounting policy election effective January 1, 2026, on a prospective basis. Refer to Note 4 for additional information. Significant Accounting Standards Issued but Not Yet Adopted The following significant accounting standards were issued but not yet adopted by the Bancorp as of March 31, 2026: ASU 2024-03 – Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses In November 2024, the FASB issued ASU 2024-03, which introduces new requirements to disclose additional information about certain types of expenses, including employee compensation, depreciation, intangible asset amortization and selling expenses. The amended guidance is effective for the Bancorp for the year ending December 31, 2027 and subsequent interim reporting periods beginning in 2028, with early adoption permitted, and is to be applied prospectively, with retrospective application permitted. The Bancorp is in the process of evaluating the impact of the amended guidance on its Condensed Consolidated Financial Statements. ASU 2025-06 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software In September 2025, the FASB issued ASU 2025-06, which modernizes the accounting for internal-use software by replacing the stage-based capitalization model with a principle-based framework. The amended guidance clarifies that capitalization begins when management authorizes funding and determines that it is probable the project will be completed and the software will be used as intended. The amended guidance is effective for the Bancorp on January 1, 2028 with early adoption permitted. The amendments should be applied on either a prospective, modified or retrospective basis. The Bancorp is in the process of evaluating the impact of the amended guidance on its Condensed Consolidated Financial Statements. ASU 2025-07 – Derivatives and Hedging (Topic 815) and Revenue from Contracts with Customers (Topic 606): Derivatives Scope Refinements and Scope Clarification for Share-Based Noncash Consideration from a Customer in a Revenue Contract In September 2025, the FASB issued ASU 2025-07, which refines derivative accounting by introducing a scope exception for certain contracts with variables based on the specific operations or activities of one of the parties to the contract. The amended guidance also clarifies that share-based noncash consideration received from a customer in a revenue contract is initially accounted for under ASC 606, with other guidance applied only once the consideration becomes unconditional. The amended guidance is effective for the Bancorp on January 1, 2027, with early adoption permitted. The amendments should be applied on either a prospective or modified retrospective basis. The Bancorp does not expect the amended guidance to have a material impact on its Condensed Consolidated Financial Statements. ASU 2025-09 – Derivatives and Hedging (Topic 815): Hedge Accounting Improvements In November 2025, the FASB issued ASU 2025-09, which makes several amendments to existing guidance for hedge accounting. The amendments are intended to simplify the application of hedge accounting guidance in current U.S. GAAP, improve the alignment of financial reporting with an entity’s risk management strategies and enable the achievement and maintenance of hedge accounting for highly effective economic hedges of forecasted transactions. Among other things, the amendments include the expansion of hedged risks for groups of forecasted transactions in a cash flow hedge, introduction of a model for variable-rate debt with choose-your-rate debt features, expansion of hedge accounting for forecasted purchases and sales of nonfinancial assets, elimination of the net written option test for certain compound derivatives, and elimination of recognition and presentation mismatches involving foreign currency-denominated debt in dual hedge designations. The amended guidance is effective for the Bancorp on January 1, 2027, with early adoption permitted. The amendments should be applied on a prospective basis for all hedging relationships. The Bancorp may elect to adopt the amendments for hedging relationships that exist as of the date of adoption. The Bancorp does not expect the amended guidance to have a material impact on its Condensed Consolidated Financial Statements. ASU 2025-11 – Interim Reporting (Topic 270): Narrow-Scope Improvements In December 2025, the FASB issued ASU 2025-11, which clarifies interim disclosure requirements by providing a comprehensive list of disclosures that are required in interim periods. The amendments also introduce a disclosure principle that requires entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. The amended guidance is effective for the Bancorp on January 1, 2028, with early adoption permitted. The amendments should be applied on either a prospective or retrospective basis. The Bancorp is in the process of evaluating the impact of the amended guidance on its interim reporting. Updates to Significant Accounting and Reporting Policies In conjunction with the adoption of ASU 2025-08 on January 1, 2026, the Bancorp has updated its accounting and reporting policy for portfolio loans and leases as described below. Additionally, in conjunction with the acquisition of Comerica Incorporated on February 1, 2026, the Bancorp has updated its accounting and reporting policy for pension plans as described below. Refer to Note 1 of the Notes to Consolidated Financial Statements in the Bancorp’s Annual Report on Form 10-K for the year ended December 31, 2025 for discussion of these accounting and reporting policies for periods prior to January 1, 2026. Portfolio Loans and Leases Basis of accounting Portfolio loans and leases are generally reported at the principal balance outstanding, net of unearned income, deferred direct loan origination fees and costs and any direct principal charge-offs. Direct loan origination fees and costs are deferred and the net amount is amortized over the contractual life or estimated life, if prepayments are estimated, of the related loans as a yield adjustment. Interest income is recognized based on the principal balance outstanding, computed using the effective interest method. Loans and leases acquired by the Bancorp through a purchase or business combination are initially evaluated for classification as PCD. Acquired loans and leases (including both sales-type leases and direct financing leases) are classified as PCD when there is evidence of more than insignificant deterioration in credit quality since origination. Loans that do not meet the criteria to be classified as PCD, are evaluated to determine whether they qualify as PSLs. Loans are considered PSLs if they are acquired at least 90 days after origination and the Bancorp was not involved in the origination of the loan. Loans acquired in a business combination are automatically deemed PSLs. Excluded from the scope of PSLs are credit cards, debt securities, contract assets, trade receivables and leases. At acquisition, PCD and PSLs are accounted for under the gross-up approach, which includes recognizing an allowance and an offsetting entry as an addition to the fair value of the loan, resulting in an initial amortized cost basis in an amount equal to the sum of the purchase price plus the ACL. The difference, if any, between the amortized cost basis (as adjusted for expected credit losses) and the unpaid principal balance is recognized as a noncredit discount or premium and accreted or amortized into interest income over the life of the loan as an adjustment to yield. For acquired loans and finance leases that do not qualify as PCD or PSLs, the Bancorp does not carry over the acquired company’s ACL but upon acquisition will record an ACL and provision for credit losses reflective of credit losses expected to be incurred over the remaining contractual life of the acquired loans. Premiums and discounts reflected in the initial fair value are amortized into interest income over the life of the loan as an adjustment to yield. The Bancorp’s lease portfolio consists of sales-type, direct financing and leveraged leases. Leases are classified as sales-type if the Bancorp transfers control of the underlying asset to the lessee. The Bancorp classifies leases that do not meet any of the criteria for a sales-type lease as a direct financing lease if the present value of the sum of the lease payments and any residual value guaranteed by the lessee and/or any other third party equals or exceeds substantially all of the fair value of the underlying asset and the collection of the lease payments and residual value guarantee is probable. Sales-type and direct financing leases are recorded at the aggregate of lease payments plus estimated residual value of the leased property, less unearned income. Interest income on sales-type and direct financing leases is recognized over the term of the lease to achieve a constant periodic rate of return on the outstanding investment. Leveraged leases, entered into before January 1, 2019, are recorded at the aggregate of lease payments (less nonrecourse debt payments) plus estimated residual value of the leased property, less unearned income. Interest income on leveraged leases is recognized over the term of the lease to achieve a constant rate of return on the outstanding investment in the lease, net of the related deferred income tax liability, in the years in which the net investment is positive. Leveraged lease accounting is no longer applied for leases entered into or modified after the Bancorp’s adoption of ASU 2016-02, Leases, on January 1, 2019. Pension Plans The Bancorp uses a third-party actuary to assist in determining the projected obligations and annual costs of its defined benefit pension plans, which are dependent on assumptions of future events. These include demographic assumptions such as retirement age, mortality, the rate of compensation increases and the form of payment election, as well as market-based assumptions such as discount rates and expected returns on plan assets. Net periodic pension cost (or benefit) includes service cost, interest cost, expected returns on plan assets, the amortization of prior service cost (or credit) and the amortization of net actuarial gains (or losses). To determine the expected investment returns on plan assets, the Bancorp estimates expected long-term rates of return for classes of investments, which are then applied to a market-related value of plan assets as of the measurement date. For fixed-income and private placement securities, the market-related value of plan assets is based on the fair value as of the measurement date. For other types of investments, the market-related value of plan assets at the measurement date is based on amortizing the difference between actual returns and expected returns over a period of up to five years. Amortization of the net gain or loss resulting from experience different from that assumed and from changes in assumptions (excluding asset gains and losses not yet reflected in market-related value) is included as a component of net periodic benefit cost. If, as of the beginning of the year, that net gain or loss exceeds 10% of the greater of the projected benefit obligation and the market-related value of plan assets, the amortization is that excess divided by the average remaining service period of participating employees expected to receive benefits under the plan. Service cost is included in compensation and benefits expense, while the other components of net periodic pension cost (or benefit) are included in other noninterest expense in the Condensed Consolidated Statements of Income. The Bancorp recognizes the overfunded or underfunded status of each plan in other assets and accrued taxes, interest and expenses, respectively, in the Condensed Consolidated Balance Sheets.

In November 2025, the FASB issued ASU 2025-08, which modifies the accounting for purchased financial assets by expanding the gross-up approach for recognizing the estimate of expected credit losses to purchased seasoned loans, which includes non-purchased credit deteriorated loans (excluding credit cards and leases) purchased at least 90 days after origination and the acquirer was not involved in the origination, or loans acquired in a business combination. Upon acquisition, PSLs should be accounted for under the gross-up approach, which includes recognizing an allowance and an offsetting entry as an addition to the fair value of the loan, resulting in an initial amortized cost basis in an amount equal to the sum of the purchase price plus the ACL. The difference, if any, between the amortized cost basis (as adjusted for expected credit losses) and the unpaid principal balance is recognized as a noncredit discount or premium and accreted or amortized into interest income. The amended guidance largely eliminates the day 1 credit loss expense for non-PCD acquired financial assets. The amended guidance also introduces an accounting policy election for entities that use a method other than a discounted cash flow analysis to estimate credit losses on PSLs, which allows the use of the amortized cost basis rather than the unpaid principal balance when subsequently measuring the ACL, applied on an individual-acquisition basis. As permitted, the Bancorp early adopted the amended guidance and the related accounting policy election effective January 1, 2026, on a prospective basis. Refer to Note 4 for additional information.

In November 2024, the FASB issued ASU 2024-03, which introduces new requirements to disclose additional information about certain types of expenses, including employee compensation, depreciation, intangible asset amortization and selling expenses. The amended guidance is effective for the Bancorp for the year ending December 31, 2027 and subsequent interim reporting periods beginning in 2028, with early adoption permitted, and is to be applied prospectively, with retrospective application permitted. The Bancorp is in the process of evaluating the impact of the amended guidance on its Condensed Consolidated Financial Statements.

In September 2025, the FASB issued ASU 2025-06, which modernizes the accounting for internal-use software by replacing the stage-based capitalization model with a principle-based framework. The amended guidance clarifies that capitalization begins when management authorizes funding and determines that it is probable the project will be completed and the software will be used as intended. The amended guidance is effective for the Bancorp on January 1, 2028 with early adoption permitted. The amendments should be applied on either a prospective, modified or retrospective basis. The Bancorp is in the process of evaluating the impact of the amended guidance on its Condensed Consolidated Financial Statements.

In September 2025, the FASB issued ASU 2025-07, which refines derivative accounting by introducing a scope exception for certain contracts with variables based on the specific operations or activities of one of the parties to the contract. The amended guidance also clarifies that share-based noncash consideration received from a customer in a revenue contract is initially accounted for under ASC 606, with other guidance applied only once the consideration becomes unconditional. The amended guidance is effective for the Bancorp on January 1, 2027, with early adoption permitted. The amendments should be applied on either a prospective or modified retrospective basis. The Bancorp does not expect the amended guidance to have a material impact on its Condensed Consolidated Financial Statements.

In November 2025, the FASB issued ASU 2025-09, which makes several amendments to existing guidance for hedge accounting. The amendments are intended to simplify the application of hedge accounting guidance in current U.S. GAAP, improve the alignment of financial reporting with an entity’s risk management strategies and enable the achievement and maintenance of hedge accounting for highly effective economic hedges of forecasted transactions. Among other things, the amendments include the expansion of hedged risks for groups of forecasted transactions in a cash flow hedge, introduction of a model for variable-rate debt with choose-your-rate debt features, expansion of hedge accounting for forecasted purchases and sales of nonfinancial assets, elimination of the net written option test for certain compound derivatives, and elimination of recognition and presentation mismatches involving foreign currency-denominated debt in dual hedge designations. The amended guidance is effective for the Bancorp on January 1, 2027, with early adoption permitted. The amendments should be applied on a prospective basis for all hedging relationships. The Bancorp may elect to adopt the amendments for hedging relationships that exist as of the date of adoption. The Bancorp does not expect the amended guidance to have a material impact on its Condensed Consolidated Financial Statements.

In December 2025, the FASB issued ASU 2025-11, which clarifies interim disclosure requirements by providing a comprehensive list of disclosures that are required in interim periods. The amendments also introduce a disclosure principle that requires entities to disclose events since the end of the last annual reporting period that have a material impact on the entity. The amended guidance is effective for the Bancorp on January 1, 2028, with early adoption permitted. The amendments should be applied on either a prospective or retrospective basis. The Bancorp is in the process of evaluating the impact of the amended guidance on its interim reporting.

In conjunction with the adoption of ASU 2025-08 on January 1, 2026, the Bancorp has updated its accounting and reporting policy for portfolio loans and leases as described below. Additionally, in conjunction with the acquisition of Comerica Incorporated on February 1, 2026, the Bancorp has updated its accounting and reporting policy for pension plans as described below. Refer to Note 1 of the Notes to Consolidated Financial Statements in the Bancorp’s Annual Report on Form 10-K for the year ended December 31, 2025 for discussion of these accounting and reporting policies for periods prior to January 1, 2026.

Portfolio loans and leases are generally reported at the principal balance outstanding, net of unearned income, deferred direct loan origination fees and costs and any direct principal charge-offs. Direct loan origination fees and costs are deferred and the net amount is amortized over the contractual life or estimated life, if prepayments are estimated, of the related loans as a yield adjustment. Interest income is recognized based on the principal balance outstanding, computed using the effective interest method.

Loans and leases acquired by the Bancorp through a purchase or business combination are initially evaluated for classification as PCD. Acquired loans and leases (including both sales-type leases and direct financing leases) are classified as PCD when there is evidence of more than insignificant deterioration in credit quality since origination. Loans that do not meet the criteria to be classified as PCD, are evaluated to determine whether they qualify as PSLs. Loans are considered PSLs if they are acquired at least 90 days after origination and the Bancorp was not involved in the origination of the loan. Loans acquired in a business combination are automatically deemed PSLs. Excluded from the scope of PSLs are credit cards, debt securities, contract assets, trade receivables and leases.

At acquisition, PCD and PSLs are accounted for under the gross-up approach, which includes recognizing an allowance and an offsetting entry as an addition to the fair value of the loan, resulting in an initial amortized cost basis in an amount equal to the sum of the purchase price plus the ACL. The difference, if any, between the amortized cost basis (as adjusted for expected credit losses) and the unpaid principal balance is recognized as a noncredit discount or premium and accreted or amortized into interest income over the life of the loan as an adjustment to yield.

For acquired loans and finance leases that do not qualify as PCD or PSLs, the Bancorp does not carry over the acquired company’s ACL but upon acquisition will record an ACL and provision for credit losses reflective of credit losses expected to be incurred over the remaining contractual life of the acquired loans. Premiums and discounts reflected in the initial fair value are amortized into interest income over the life of the loan as an adjustment to yield.

The Bancorp’s lease portfolio consists of sales-type, direct financing and leveraged leases. Leases are classified as sales-type if the Bancorp transfers control of the underlying asset to the lessee. The Bancorp classifies leases that do not meet any of the criteria for a sales-type lease as a direct financing lease if the present value of the sum of the lease payments and any residual value guaranteed by the lessee and/or any other third party equals or exceeds substantially all of the fair value of the underlying asset and the collection of the lease payments and residual value guarantee is probable. Sales-type and direct financing leases are recorded at the aggregate of lease payments plus estimated residual value of the leased property, less unearned income. Interest income on sales-type and direct financing leases is recognized over the term of the lease to achieve a constant periodic rate of return on the outstanding investment.

Leveraged leases, entered into before January 1, 2019, are recorded at the aggregate of lease payments (less nonrecourse debt payments) plus estimated residual value of the leased property, less unearned income. Interest income on leveraged leases is recognized over the term of the lease to achieve a constant rate of return on the outstanding investment in the lease, net of the related deferred income tax liability, in the years in which the net investment is positive. Leveraged lease accounting is no longer applied for leases entered into or modified after the Bancorp’s adoption of ASU 2016-02, Leases, on January 1, 2019.

The Bancorp uses a third-party actuary to assist in determining the projected obligations and annual costs of its defined benefit pension plans, which are dependent on assumptions of future events. These include demographic assumptions such as retirement age, mortality, the rate of compensation increases and the form of payment election, as well as market-based assumptions such as discount rates and expected returns on plan assets. Net periodic pension cost (or benefit) includes service cost, interest cost, expected returns on plan assets, the amortization of prior service cost (or credit) and the amortization of net actuarial gains (or losses). To determine the expected investment returns on plan assets, the Bancorp estimates expected long-term rates of return for classes of investments, which are then applied to a market-related value

of plan assets as of the measurement date. For fixed-income and private placement securities, the market-related value of plan assets is based on the fair value as of the measurement date. For other types of investments, the market-related value of plan assets at the measurement date is based on amortizing the difference between actual returns and expected returns over a period of up to five years. Amortization of the net gain or loss resulting from experience different from that assumed and from changes in assumptions (excluding asset gains and losses not yet reflected in market-related value) is included as a component of net periodic benefit cost. If, as of the beginning of the year, that net gain or loss exceeds 10% of the greater of the projected benefit obligation and the market-related value of plan assets, the amortization is that excess divided by the average remaining service period of participating employees expected to receive benefits under the plan. Service cost is included in compensation and benefits expense, while the other components of net periodic pension cost (or benefit) are included in other noninterest expense in the Condensed Consolidated Statements of Income. The Bancorp recognizes the overfunded or underfunded status of each plan in other assets and accrued taxes, interest and expenses, respectively, in the Condensed Consolidated Balance Sheets.