CREDIT FACILITIES AND LONG-TERM DEBT - Schedule of Credit Facilities and Long Term Debt (Details) - Line of Credit - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Borrowing Capacity	$ 7,618
Outstanding, current	374	$ 432
Net Carrying Amount	966	1,492
Asset-Backed Senior Facilities
Debt Instrument [Line Items]
Borrowing Capacity	4,368
Outstanding amount, current	374	432
Issuance Costs	0	0
Carrying Value	374	432
Outstanding amount, noncurrent	625	1,150
Issuance Costs	(4)	(7)
Net Carrying Amount	621	1,143
Asset-backed Mezzanine Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	3,250
Outstanding amount, current	0	0
Outstanding amount, noncurrent	350	350
Issuance Costs	(5)	(1)
Net Carrying Amount	345	349
Revolving Facility 2018-2 \| Asset-backed Senior Revolving Credit Facilities
Debt Instrument [Line Items]
Borrowing Capacity	1,000
Outstanding amount, current	0	0
Outstanding amount, noncurrent	$ 0	$ 0
Weighted average interest rate (in percent)	0.00%	0.00%
Revolving Facility 2018-3 \| Asset-backed Senior Revolving Credit Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 1,000
Outstanding amount, current	6	$ 182
Outstanding amount, noncurrent	$ 0	$ 0
Weighted average interest rate (in percent)	7.28%	8.00%
Revolving Facility 2019-1 \| Asset-backed Senior Revolving Credit Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 300
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 0	$ 0
Weighted average interest rate (in percent)	7.24%	0.00%
Revolving Facility 2019-2 \| Asset-backed Senior Revolving Credit Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 300
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 0	$ 0
Weighted average interest rate (in percent)	7.15%	0.00%
Revolving Facility 2019-3 \| Asset-backed Senior Revolving Credit Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 100
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 0	$ 0
Weighted average interest rate (in percent)	7.28%	8.13%
Term Debt Facility 2021-S1 \| Asset-backed Senior Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 400
Outstanding amount, current	100	$ 0
Outstanding amount, noncurrent	$ 0	$ 100
Weighted average interest rate (in percent)	5.88%	3.48%
Term Debt Facility 2021-S2 \| Asset-backed Senior Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 268
Outstanding amount, current	268	$ 0
Outstanding amount, noncurrent	$ 0	$ 300
Weighted average interest rate (in percent)	3.57%	3.31%
Term Debt Facility 2021-S3 \| Asset-backed Senior Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 1,000
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 625	$ 750
Weighted average interest rate (in percent)	3.75%	3.75%
Term Debt Facility 2022-S1 \| Asset-backed Senior Term Debt Facilities
Debt Instrument [Line Items]
Outstanding amount, current		$ 250
Outstanding amount, noncurrent		$ 0
Weighted average interest rate (in percent)		4.07%
Term Debt Facility 2020-M1 \| Asset-backed Mezzanine Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 3,000
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 200	$ 200
Weighted average interest rate (in percent)	12.00%	10.00%
Term Debt Facility 2022-M1 \| Asset-backed Mezzanine Term Debt Facilities
Debt Instrument [Line Items]
Borrowing Capacity	$ 250
Outstanding amount, current	0	$ 0
Outstanding amount, noncurrent	$ 150	$ 150
Weighted average interest rate (in percent)	12.24%	10.00%

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