Revenues - Schedule of Accounts Receivables, Net (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Accounts Receivable, net	$ 1,326	$ 1,393
Freight Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivables, gross	1,012	1,047
Allowance for Credit Losses	(16)	(18)
Total Accounts Receivable, net	996	1,029
Non-Freight Receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts Receivables, gross	343	378
Allowance for Credit Losses	(13)	(14)
Total Accounts Receivable, net	$ 330	$ 364