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Note 11 - Accounts Payable and Other Current Liabilities (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
 

Mar. 31,

Dec. 31,

 

Millions

 

2022

   

2021

 

Income and other taxes payable

  $ 1,178     $ 823  

Accounts payable

    868       752  

Accrued wages and vacation

    355       352  

Current operating lease liabilities

    305       330  

Interest payable

    237       330  

Accrued casualty costs

    202       187  

Equipment rents payable

    96       98  

Other

    662       706  

Total accounts payable and other current liabilities

  $ 3,903     $ 3,578