TRANSFERS OF RECEIVABLES AND VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025	Sep. 30, 2025
Securitization Transactions [Line Items]
Cash and Cash Equivalents	$ 8,251	$ 9,270
After Allowance for Credit Losses	146,138		$ 145,692
Related Debt	139,393	141,417
Total securitization transactions \| Securitization Transactions
Securitization Transactions [Line Items]
Cash and Cash Equivalents	2,800	2,900
Before Allowance for Credit Losses	78,700	77,700
Allowance for Credit Losses	(500)	(400)
After Allowance for Credit Losses	78,200	77,300
Related Debt	57,700	59,500
Total securitization transactions \| Securitization Transactions \| Retail financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	2,000	2,100
Before Allowance for Credit Losses	44,900	43,800
Allowance for Credit Losses	(500)	(400)
After Allowance for Credit Losses	44,400	43,400
Related Debt	38,500	36,900
Total securitization transactions \| Securitization Transactions \| Wholesale financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	200	200
Before Allowance for Credit Losses	20,300	20,300
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	20,300	20,300
Related Debt	10,600	13,900
Total securitization transactions \| Securitization Transactions \| Finance receivables
Securitization Transactions [Line Items]
Cash and Cash Equivalents	2,200	2,300
Before Allowance for Credit Losses	65,200	64,100
Allowance for Credit Losses	(500)	(400)
After Allowance for Credit Losses	64,700	63,700
Related Debt	49,100	50,800
Total securitization transactions \| Securitization Transactions \| Net investment in operating leases
Securitization Transactions [Line Items]
Cash and Cash Equivalents	600	600
Before Allowance for Credit Losses	13,500	13,600
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	13,500	13,600
Related Debt	8,600	8,700
VIE
Securitization Transactions [Line Items]
Cash and Cash Equivalents	2,510	2,523
Related Debt	51,182	52,054
VIE \| Securitization Transactions
Securitization Transactions [Line Items]
Cash and Cash Equivalents	2,500	2,500
Before Allowance for Credit Losses	71,600	69,700
Allowance for Credit Losses	(400)	(300)
After Allowance for Credit Losses	71,200	69,400
Related Debt	51,200	52,100
VIE \| Securitization Transactions \| Retail financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	1,700	1,700
Before Allowance for Credit Losses	38,100	36,200
Allowance for Credit Losses	(400)	(300)
After Allowance for Credit Losses	37,700	35,900
Related Debt	32,200	29,900
VIE \| Securitization Transactions \| Wholesale financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	200	200
Before Allowance for Credit Losses	20,000	19,900
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	20,000	19,900
Related Debt	10,400	13,500
VIE \| Securitization Transactions \| Finance receivables
Securitization Transactions [Line Items]
Cash and Cash Equivalents	1,900	1,900
Before Allowance for Credit Losses	58,100	56,100
Allowance for Credit Losses	(400)	(300)
After Allowance for Credit Losses	57,700	55,800
Related Debt	42,600	43,400
VIE \| Securitization Transactions \| Net investment in operating leases
Securitization Transactions [Line Items]
Cash and Cash Equivalents	600	600
Before Allowance for Credit Losses	13,500	13,600
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	13,500	13,600
Related Debt	8,600	8,700
Non-VIE \| Securitization Transactions
Securitization Transactions [Line Items]
Cash and Cash Equivalents	300	400
Before Allowance for Credit Losses	7,100	8,000
Allowance for Credit Losses	(100)	(100)
After Allowance for Credit Losses	7,000	7,900
Related Debt	6,500	7,400
Non-VIE \| Securitization Transactions \| Retail financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	300	400
Before Allowance for Credit Losses	6,800	7,600
Allowance for Credit Losses	(100)	(100)
After Allowance for Credit Losses	6,700	7,500
Related Debt	6,300	7,000
Non-VIE \| Securitization Transactions \| Wholesale financing
Securitization Transactions [Line Items]
Cash and Cash Equivalents	0	0
Before Allowance for Credit Losses	300	400
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	300	400
Related Debt	200	400
Non-VIE \| Securitization Transactions \| Finance receivables
Securitization Transactions [Line Items]
Cash and Cash Equivalents	300	400
Before Allowance for Credit Losses	7,100	8,000
Allowance for Credit Losses	(100)	(100)
After Allowance for Credit Losses	7,000	7,900
Related Debt	6,500	7,400
Non-VIE \| Securitization Transactions \| Net investment in operating leases
Securitization Transactions [Line Items]
Cash and Cash Equivalents	0	0
Before Allowance for Credit Losses	0	0
Allowance for Credit Losses	0	0
After Allowance for Credit Losses	0	0
Related Debt	$ 0	$ 0