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Accounts Payable and Other Current Liabilities
6 Months Ended
Jun. 30, 2021
Accounts Payable and Other Current Liabilties [Abstract]  
Accounts Payable and Other Current Liabilities 12. Accounts Payable and Other Current Liabilities

Jun. 30,

Dec. 31,

Millions

2021

2020

Income and other taxes payable

$

769 

$

635 

Accounts payable

612 

612 

Accrued wages and vacation

340 

340 

Interest payable

330 

326 

Current operating lease liabilities

297 

321 

Accrued casualty costs

186 

177 

Equipment rents payable

99 

101 

Other

614 

592 

Total accounts payable and other current liabilities

$

3,247 

$

3,104