Leases - Schedule of Net Book Value of Assets Subject to Leases (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Lessor asset under operating lease, accumulated depreciation	$ 236
Operating lease equipment, net	7,984	$ 0	$ 0
Railcars and locomotives
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	7,248
Other equipment
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	736
Off-lease rail equipment
Property, Plant, and Equipment, Lessor Asset under Operating Lease [Line Items]
Operating lease equipment, net	$ 509