Securitizations and Variable Interest Entities (VIE) - Schedule of Carrying Amounts of Assets and Liabilities of Consolidated Securitization Trusts (Detail) - USD ($) $ in Millions |
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
||
|---|---|---|---|---|---|
| Assets | |||||
| Restricted cash | [1] | $ 715 | $ 715 | $ 420 | |
| Other | 118 | 80 | |||
| Liabilities | |||||
| Secured debt | $ 12,384 | $ 9,351 | |||
| Restricted Cash and Cash Equivalents, Statement of Financial Position [Extensible Enumeration] | Other assets | Other assets | |||
| Variable Interest Entity, Primary Beneficiary | |||||
| Assets | |||||
| Securitized assets | $ 12,969 | $ 9,796 | |||
| Restricted cash | 715 | 715 | |||
| Other | 40 | 25 | |||
| Liabilities | |||||
| Secured debt | 12,384 | 9,351 | |||
| Other | $ 22 | $ 17 | |||
| |||||
| X | ||||||||||
- Definition Securitized Assets No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of other miscellaneous assets. No definition available.
|
| X | ||||||||||
- Definition Amount of liabilities classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Indicates line item in statement of financial position that includes cash and cash equivalents restricted to withdrawal or usage. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|