REVENUE EARNING EQUIPMENT, NET - Schedule of Revenue Earning Equipment (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Revenue Earning Equipment [Line Items]
Cost	$ 15,091	$ 14,433
Accumulated Depreciation	(6,296)	(6,243)
Net	8,795	8,190
Fair Value, Inputs, Level 3 | Fair Value, Measurements, Nonrecurring
Revenue Earning Equipment [Line Items]
Assets held for sale	$ 3	3
Trucks
Revenue Earning Equipment [Line Items]
Estimated Useful Lives (In Years) , Minimum	3 years
Estimated Useful Lives (In Years) , Maximum	7 years
Cost	$ 5,499	5,282
Accumulated Depreciation	(2,153)	(2,114)
Net	$ 3,346	3,168
Tractors
Revenue Earning Equipment [Line Items]
Estimated Useful Lives (In Years) , Minimum	4 years
Estimated Useful Lives (In Years) , Maximum	7 years 6 months
Cost	$ 7,283	7,153
Accumulated Depreciation	(2,972)	(3,153)
Net	$ 4,311	4,000
Trailers and other
Revenue Earning Equipment [Line Items]
Estimated Useful Lives (In Years) , Minimum	9 years 6 months
Estimated Useful Lives (In Years) , Maximum	12 years
Cost	$ 1,679	1,610
Accumulated Depreciation	(686)	(690)
Net	993	920
Held-for-sale
Revenue Earning Equipment [Line Items]
Cost	630	388
Accumulated Depreciation	(485)	(286)
Net	$ 145	$ 102