Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 2,441	$ 2,463
Accounts receivable, net	1,377	1,320
Materials and supplies	1,154	1,066
Other current assets	222	162
Total current assets	5,194	5,011
Property and equipment, net of accumulated depreciation of $22,779 and $22,327, respectively	72,462	72,372
Goodwill	15,351	15,351
Operating lease right-of-use assets	1,124	1,207
Other assets	3,974	3,948
Total assets	98,105	97,889
Current liabilities:
Accounts payable and other current liabilities	4,231	3,856
Long-term debt and finance leases due within one year	71	571
Total current liabilities	4,302	4,427
Long-term debt and finance leases	23,489	23,491
Deferred income taxes	16,067	15,985
Operating lease liabilities	838	903
Casualty and environmental liabilities	359	364
Pension and retiree health and welfare liability	162	164
Other liabilities	882	921
Total liabilities	46,099	46,255
Commitments and contingencies (see Note 7)
Equity:
Member’s equity	51,513	51,136
Accumulated other comprehensive income (loss)	493	498
Total equity	52,006	51,634
Total liabilities and equity	$ 98,105	$ 97,889