Acquisition Activity (Acquisition Consideration) (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Jan. 05, 2026 |
Mar. 31, 2026 |
Dec. 31, 2025 |
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| Liabilities | |||
| Goodwill | $ 2,300 | $ 13,282 | $ 10,959 |
| FirstBank Holding Company | |||
| Business Combination [Line Items] | |||
| Cash paid | 1,238 | $ 1,238 | |
| Total consideration | 4,300 | ||
| Assets | |||
| Cash and due from banks | 162 | ||
| Interest-earning deposits with banks | 996 | ||
| Investment securities | 8,278 | ||
| Net loans | 15,177 | ||
| Core deposit intangible | 761 | ||
| Other | 1,273 | ||
| Total assets | 26,647 | ||
| Liabilities | |||
| Deposits | 23,076 | ||
| Borrowed funds and other | 1,594 | ||
| Total liabilities | 24,670 | ||
| Net assets | 1,977 | ||
| Goodwill | $ 2,323 | ||
| FirstBank Holding Company | Common Stock | |||
| Business Combination [Line Items] | |||
| Stock issued (in shares) | 13,715,133 | ||
| Stock issued, fair value | $ 2,943 | ||
| Liabilities | |||
| Deferred restricted stock compensation | 29 | ||
| Shares withheld to satisfy tax obligations | $ 13 | ||
| FirstBank Holding Company | Preferred Stock | |||
| Business Combination [Line Items] | |||
| Stock issued (in shares) | 115,200 | ||
| Stock issued, fair value | $ 119 |
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt And Lease Obligation No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Debt Securities, Available-for-sale No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Receivable, Covered, After Allowance for Credit Loss No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Interest-bearing Deposits In Banks And Other Financial Institutions No definition available.
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- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Less Noncontrolling Interest No definition available.
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- Definition Share-Based Payment, Arrangement, Deferred Restricted Stock Compensation, Va;ie No definition available.
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- Definition Number of shares of equity interest issued or issuable by acquirer as part of consideration transferred in business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of cash and cash equivalent acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of identifiable intangible asset acquired in business combination and recognized at acquisition date. Excludes goodwill and financial asset. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of liability assumed in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of asset acquired in business combination and recognized at acquisition date, classified as other and noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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