Securitizations and Variable Interest Entities (VIE) - Narrative (Detail) - USD ($) $ in Millions |
9 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2025 |
|
| Variable Interest Entity [Line Items] | |||
| Asset-backed securitization notes issued during period | $ 8,300 | $ 6,400 | |
| Initial receivable principal balance underlying asset-backed securitization notes issued during period | 9,000 | $ 6,900 | |
| Cash to be remitted to trusts | $ 815 | $ 688 | |
| X | ||||||||||
- Definition Cash collections on receivables underlying asset-backed securitization notes, which were required to be remitted to the trusts. No definition available.
|
| X | ||||||||||
- Definition Asset-backed securitization notes issued during period. No definition available.
|
| X | ||||||||||
- Definition Initial receivable principal balance underlying asset-backed securitization notes issued during period. No definition available.
|
| 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
|