REVENUE EARNING EQUIPMENT, NET - Revenue Earning Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue Earning Equipment [Line Items]
Cost	$ 15,449	$ 15,043
Accumulated Depreciation	(6,243)	(6,151)
Net	$ 9,206	8,892
Trucks
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	3 years
Estimated useful life, maximum	7 years
Cost	$ 6,252	5,630
Accumulated Depreciation	(2,210)	(2,192)
Net	$ 4,042	3,438
Tractors
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	4 years
Estimated useful life, maximum	7 years 6 months
Cost	$ 6,721	6,995
Accumulated Depreciation	(2,739)	(2,712)
Net	$ 3,982	4,283
Trailers and other
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	9 years 6 months
Estimated useful life, maximum	12 years
Cost	$ 1,695	1,686
Accumulated Depreciation	(671)	(683)
Net	1,024	1,003
Held for sale
Revenue Earning Equipment [Line Items]
Cost	781	732
Accumulated Depreciation	(623)	(564)
Net	$ 158	$ 168