RELATED PARTY INFORMATION - Schedule of Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Receivables from Iveco Group N.V.	$ 224		$ 224		$ 0
Trade payables	95		95		502
FCA Group
Related Party Transaction [Line Items]
Net sales	0	$ 0	0	$ 0
Cost of goods sold	3	8	14	26
Selling, general and administrative expenses	11	15	36	43
Trade receivables	0		0		0
Trade payables	13		13		20
Iveco Group post-Demerger
Related Party Transaction [Line Items]
Net sales	12	10	33	20
Cost of goods sold	218	228	721	717
Trade receivables	18		18		87
Trade payables	173		173		181
Unconsolidated subsidiaries and affiliates
Related Party Transaction [Line Items]
Net sales	79	94	301	306
Cost of goods sold	138	$ 117	382	$ 348
Trade receivables	0		0		0
Trade payables	$ 68		$ 68		$ 101