Segment Reporting - Schedule of Financing Receivables by Segment (Details) $ in Millions |
Jun. 30, 2026
USD ($)
employee
|
Dec. 31, 2025
USD ($)
employee
|
|---|---|---|
| Segment Reporting [Line Items] | ||
| Loans, net of deferred fees and costs | $ 88,076 | $ 39,154 |
| Deposits | $ 100,898 | $ 47,401 |
| Full-time equivalent employees | employee | 8,433 | 3,710 |
| Operating Segments | Banking | ||
| Segment Reporting [Line Items] | ||
| Loans, net of deferred fees and costs | $ 86,014 | $ 37,985 |
| Deposits | $ 88,359 | $ 42,339 |
| Full-time equivalent employees | employee | 4,924 | 2,367 |
| Operating Segments | Wealth | ||
| Segment Reporting [Line Items] | ||
| Loans, net of deferred fees and costs | $ 6 | $ 0 |
| Deposits | $ 3,096 | $ 1,160 |
| Full-time equivalent employees | employee | 566 | 250 |
| Treasury and Corporate Other | ||
| Segment Reporting [Line Items] | ||
| Loans, net of deferred fees and costs | $ 2,056 | $ 1,169 |
| Deposits | $ 9,443 | $ 3,902 |
| Full-time equivalent employees | employee | 2,943 | 1,093 |
| X | ||||||||||
- Definition Entity Full-Time Equivalent Employees No definition available.
|
| X | ||||||||||
- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|