REVENUE EARNING EQUIPMENT, NET - Schedule of Revenue Earning Equipment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
Revenue Earning Equipment [Line Items]
Cost	$ 15,415	$ 15,449
Accumulated Depreciation	(6,275)	(6,243)
Net	$ 9,140	9,206
Trucks
Revenue Earning Equipment [Line Items]
Estimated Useful Lives (In Years) , Minimum	3 years
Estimated Useful Lives (In Years) , Maximum	7 years
Cost	$ 6,297	6,252
Accumulated Depreciation	(2,189)	(2,210)
Net	$ 4,108	4,042
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	$ 6,624	6,721
Accumulated Depreciation	(2,779)	(2,739)
Net	$ 3,845	3,982
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	$ 1,694	1,695
Accumulated Depreciation	(676)	(671)
Net	1,018	1,024
Held for sale
Revenue Earning Equipment [Line Items]
Cost	800	781
Accumulated Depreciation	(631)	(623)
Net	$ 169	$ 158