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Accounts Payable and Other Current Liabilities
12 Months Ended
Dec. 31, 2014
Payables and Accruals [Abstract]  
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accounts Payable and Other Current Liabilities
 
Accounts payable and other current liabilities consisted of the following (in millions):
 
 
December 31,
2014
 
December 31,
2013
Compensation and benefits payable
 
$
789

 
$
821

Accounts payable
 
344

 
311

Property and income tax liabilities
 
330

 
290

Accrued interest
 
265

 
243

Rents and leases
 
158

 
161

Customer incentives
 
151

 
151

Casualty and environmental liabilities
 
140

 
145

Other
 
1,258

 
1,084

      Total
 
$
3,435

 
$
3,206