Consolidated Balance Sheet (Parenthetical) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Assets [Abstract] | ||||||||
| Trading assets | [1] | $ 227,935 | $ 168,595 | |||||
| Available-for sale, at amortized cost, net of allowance for credit losses, including portfolio level basis adjustments | 215,775 | 170,607 | ||||||
| Available-for-sale debt securities | 213,573 | 162,978 | ||||||
| Held-to-maturity, at fair value | 175,797 | 193,779 | ||||||
| Total loans | 986,167 | 912,745 | ||||||
| Assets | [2] | 2,148,631 | 1,929,845 | |||||
| Liabilities | ||||||||
| Long-term debt | 174,712 | 173,078 | ||||||
| Accrued expenses and other liabilities | [1] | 68,196 | 61,145 | |||||
| Liabilities | [3] | $ 1,965,593 | $ 1,748,779 | |||||
| Variable interest entity, liability, recourse status [Extensible Enumeration] | Nonrecourse [Member] | Nonrecourse [Member] | ||||||
| Wells Fargo stockholders’ equity: | ||||||||
| Preferred stock, aggregate liquidation preference | $ 17,376 | $ 19,376 | ||||||
| Common stock, par value (in dollars per share) | $ 1.6666 | $ 1.6666 | ||||||
| Common stock, shares authorized | 9,000,000,000 | 9,000,000,000 | ||||||
| Common stock, shares issued | 5,481,811,474 | 5,481,811,474 | ||||||
| Treasury stock, shares | 2,389,192,624 | 2,192,867,645 | ||||||
| Not held for trading [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Equity securities | $ 2,008 | $ 3,052 | ||||||
| Fair value, recurring [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Trading assets | 227,935 | 168,595 | ||||||
| Other assets, carried at fair value | 6,996 | 8,404 | ||||||
| Liabilities | ||||||||
| Interest-bearing deposits, carried at fair value | 0 | 318 | ||||||
| Accrued expenses and other liabilities, carried at fair value | 357 | 318 | ||||||
| Long-term debt, carried at fair value | 7,082 | 3,495 | ||||||
| Fair value, recurring [Member] | Not held for trading [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Equity securities | 2,008 | 3,052 | ||||||
| Pledged to counterparties that had the right to sell or repledge [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Trading assets | 145,519 | 95,916 | ||||||
| Available-for-sale debt securities | 563 | 3,078 | ||||||
| Total loans | 1,161 | 461 | ||||||
| Assets | 147,243 | 99,455 | ||||||
| Carrying value [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Held-to-maturity, at fair value | 208,023 | 234,948 | ||||||
| Liabilities | ||||||||
| Long-term debt, carried at fair value | 167,618 | 169,567 | ||||||
| VIEs that we consolidate [Member] | Carrying value [Member] | ||||||||
| Assets [Abstract] | ||||||||
| Trading assets | 2,271 | 472 | ||||||
| Total loans | 11,282 | 11,185 | ||||||
| All other assets, VIE | 224 | 199 | ||||||
| Assets | 13,800 | 11,900 | ||||||
| Liabilities | ||||||||
| Long-term debt | 3,775 | 2,240 | ||||||
| Accrued expenses and other liabilities | 206 | 124 | ||||||
| Liabilities | $ 4,000 | $ 2,400 | ||||||
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| X | ||||||||||
- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value portion of trade and related party payables and accrued expenses. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Value of the difference between preference in liquidation and the par or stated values of the preferred shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Indicates status of creditor recourse for liability of variable interest entity (VIE). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of all other assets not separately listed; includes loans held for sale and other assets. No definition available.
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| X | ||||||||||
- Definition Amortized cost excluding accrued interest, including portfolio level basis adjustments, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income. No definition available.
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- Definition Financing receivable amortized cost, and net investment in sales-type and direct financing leases, excluding accrued interest, before allowance for credit loss. No definition available.
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- Definition Fair value portion of interest-bearing deposit liabilities held by the entity, including, but not limited to, foreign and domestic, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. No definition available.
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| X | ||||||||||
- Definition Fair value portion of other assets, servicing asset at fair value amount, and loans held-for-sale. No definition available.
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| X | ||||||||||
- Definition The fair value amount, after the effects of master netting arrangements, as of the balance sheet date that pertains to financial instruments classified as trading: (1) debt and equity securities, (2) derivative assets, (3) physical commodities inventory, (4) loans held for sale, and (5) other assets classified as trading. No definition available.
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| X | ||||||||||
- Definition Number of previously issued common and preferred shares repurchased by the issuing entity and held in treasury. No definition available.
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