REVENUE EARNING EQUIPMENT, NET - Revenue Earning Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenue Earning Equipment [Line Items]
Cost	$ 15,360	$ 15,449
Accumulated Depreciation	(6,462)	(6,243)
Net	$ 8,898	9,206
Trucks
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	3 years
Estimated useful life, maximum	7 years
Cost	$ 6,183	6,252
Accumulated Depreciation	(2,216)	(2,210)
Net	$ 3,967	4,042
Tractors
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	4 years
Estimated useful life, maximum	7 years 6 months
Cost	$ 6,567	6,721
Accumulated Depreciation	(2,843)	(2,739)
Net	$ 3,724	3,982
Trailers and other
Revenue Earning Equipment [Line Items]
Estimated useful life, minimum	9 years 6 months
Estimated useful life, maximum	12 years
Cost	$ 1,754	1,695
Accumulated Depreciation	(723)	(671)
Net	1,031	1,024
Held for sale
Revenue Earning Equipment [Line Items]
Cost	856	781
Accumulated Depreciation	(680)	(623)
Net	$ 176	$ 158