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Accounts Payable and Other Current Liabilities
 12 Months Ended
Dec. 31, 2021
Payables and Accruals [Abstract]  
Accounts Payable and Other Current Liabilities Accounts Payable and Other Current Liabilities
 
Accounts payable and other current liabilities consisted of the following (in millions):
 December 31,
2021		December 31,
2020
Compensation and benefits payable$1,034 $760 
Property and income tax liabilities492 435 
Operating leases - current328 391 
Accounts payable314 310 
Customer incentives288 224 
Accrued interest279 277 
Casualty and environmental liabilities120 110 
Capital expenditure estimated liabilities116 74 
Rents and leases97 101 
Other828 752 
      Total$3,896 $3,434