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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule of Property, Plant and Equipment | Useful lives for premises and equipment are generally estimated as follows:
Premises and Equipment |  | Useful Lives
Buildings and improvements |  | 5-39 years
Furniture and equipment |  | 3-10 years
Computer software |  | 3 years
Leasehold improvements |  | Lesser of the useful life or the remaining lease term
The following table presents our premises and equipment as of December 31, 2024 and 2023. Table 8.1 Components of Premises and Equipment
(Dollars in millions) |  | December 31, 2024 |  | December 31, 2023
Land |  | $ | 303 |  |  | $ | 305 |
Buildings and improvements |  | 4,276 |  |  | 4,297 |
Furniture and equipment |  | 1,751 |  |  | 1,800 |
Computer software |  | 3,357 |  |  | 2,863 |
In progress |  | 426 |  |  | 291 |
Total premises and equipment, gross |  | 10,113 |  |  | 9,556 |
Less: Accumulated depreciation and amortization |  | (5,602) |  |  | (5,181) |
Total premises and equipment, net |  | $ | 4,511 |  |  | $ | 4,375 |
Accounting Standards Update and Change in Accounting Principle |
Standard |  | Guidance |  | Adoption Timing and Financial Statement Impacts
Tax Credit Investments ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method Issued March 2023 |  | Permits entities to elect to account for their tax equity investments, regardless of the tax credit program from which the income tax credits are received, using the proportional amortization method, if certain criteria are met. Previously, only Low-Income Housing Tax Credit investments were eligible for application of the proportional amortization method. |  | We adopted this standard on its effective date of January 1, 2024 using a modified retrospective transition method, which results in a cumulative-effect adjustment to retained earnings in the period of adoption. Our adoption of this standard did not have a material impact on our consolidated financial statements. See “Consolidated Statements of Changes in Stockholders’ Equity” and “Note 6—Variable Interest Entities and Securitizations” for additional disclosures.
Segment Reporting Disclosures ASU No. 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures Issued November 2023 |  | Requires disclosure of incremental segment information on an annual and interim basis. |  | We adopted this standard as of December 31, 2024 using a retrospective transition method. See “Note 18—Business Segments and Revenue from Contracts with Customers” for additional disclosures.

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