v3.26.3
Railway Operating Revenues - Schedule of Accounts Receivable (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
  Accounts receivable – net $ 1,229 $ 988
Customer    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
  Accounts receivable – net 896 715
Non-customer    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
  Accounts receivable – net $ 333 $ 273