Pledged Assets and Collateral, Pledged Assets (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
||||
|---|---|---|---|---|---|---|
| Security Owned and Pledged as Collateral, [Abstract] | ||||||
| Trading assets | [1] | $ 227,935 | $ 168,595 | |||
| Available-for-sale debt securities | 213,573 | 162,978 | ||||
| Held-to-maturity debt securities | 208,023 | 234,948 | ||||
| Total loans | 986,167 | 912,745 | ||||
| Total assets | [2] | 2,148,631 | 1,929,845 | |||
| Asset pledged as collateral [Member] | ||||||
| Security Owned and Pledged as Collateral, [Abstract] | ||||||
| Total assets | 1,020,164 | 904,134 | ||||
| Pledged to counterparties that had the right to sell or repledge [Member] | ||||||
| Security Owned and Pledged as Collateral, [Abstract] | ||||||
| Trading assets | 145,519 | 95,916 | ||||
| Available-for-sale debt securities | 563 | 3,078 | ||||
| Total loans | 1,161 | 461 | ||||
| Total assets | 147,243 | 99,455 | ||||
| Pledged to counterparties that did not have the right to sell or repledge [Member] | ||||||
| Security Owned and Pledged as Collateral, [Abstract] | ||||||
| Trading assets | 6,953 | 6,078 | ||||
| Available-for-sale debt securities | 150,765 | 97,025 | ||||
| Held-to-maturity debt securities | 189,730 | 213,829 | ||||
| Total loans | 524,290 | 485,701 | ||||
| All other assets | 1,183 | 2,046 | ||||
| Total assets | $ 872,921 | $ 804,679 | ||||
| ||||||
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| 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
|
| X | ||||||||||
- Definition Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of all other pledged assets not separately listed. No definition available.
|
| X | ||||||||||
- 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.
|
| X | ||||||||||
- Definition Security Owned and Pledged as Collateral No definition available.
|
| 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.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|