INVENTORY AND INVENTORY VALUATION - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Inventory [Line Items]
Inventory write-down	$ 328		$ 319
Accrued inventory, firm purchase commitments, current	45		$ 126
Charge to reflect the LCNRV of inventory and losses on firm purchase commitments	150	$ 229
End Of Line Vehicles
Inventory [Line Items]
End of line vehicles	$ 290