REVENUES - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,240	$ 1,204
Volkswagen Group
Disaggregation of Revenue [Line Items]
Total revenues	167	0
New electric vehicles
Disaggregation of Revenue [Line Items]
Total revenues	764	1,115
Regulatory credits
Disaggregation of Revenue [Line Items]
Total revenues	159	1
Software and services
Disaggregation of Revenue [Line Items]
Total revenues	$ 317	$ 88