Debt - Schedule of Class E Notes (Details) - USD ($) $ in Millions	Jun. 30, 2026	Apr. 30, 2026
Debt Instrument [Line Items]
Total Class E Notes	$ 19,080
Class E Notes \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 221
HVF III Series 2022-5 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 17
Interest Rate		10.67%
HVF III Series 2023-2 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 14
Interest Rate		10.99%
HVF III Series 2023-4 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 24
Interest Rate		11.48%
HVF III Series 2024-1 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 18
Interest Rate		10.95%
HVF III Series 2024-2 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 18
Interest Rate		11.99%
HVF III Series 2025-1 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 24
Interest Rate		10.99%
HVF III Series 2025-2 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 24
Interest Rate		12.26%
HVF III Series 2025-3 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 18
Interest Rate		11.47%
HVF III Series 2025-4 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 15
Interest Rate		12.28%
HVF III Series 2025-5 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 22
Interest Rate		11.72%
HVF III Series 2025-6 \| Medium-term Notes
Debt Instrument [Line Items]
Total Class E Notes		$ 27
Interest Rate		12.54%