Debt Instruments - Schedule of Debt Instruments, Excluding Finance Leases (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Total debt	$ 5,571	$ 5,469
Total asset-based financing	914	906
Less: current portion	(312)	(302)
Less: unamortized debt issuance costs	(42)	(46)
Plus: unamortized premium	23	27
Total included in long-term debt, net	5,240	5,148
Accrued payment-in-kind interest	112	105
Financing of beneficial interests in securitizations
Debt Instrument [Line Items]
Total debt	357	354
Real estate financing
Debt Instrument [Line Items]
Total debt	485	485
Senior Notes
Debt Instrument [Line Items]
Less: current portion	(98)	(98)
Less: unamortized debt issuance costs	(36)	(40)
Plus: unamortized premium	23	27
Floor plan facility \| Line of Credit
Debt Instrument [Line Items]
Total debt	72	67
Senior Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Total debt	4,452	4,358
Senior Unsecured Notes \| Senior Notes
Debt Instrument [Line Items]
Total debt	$ 205	$ 205

Interest Payable, Payment-In-Kind

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