LEASES - Schedule of Net Book Value of Assets Subject to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Lessor asset under operating lease, accumulated depreciation	$ 941	$ 658
Impairment on operating lease equipment	4
Operating lease equipment, net	9,323	8,746	$ 8,156
Railcars and locomotives
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	8,573	7,966
Other equipment
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	750	780
Off-lease rail equipment
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	$ 219	$ 253