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Accounts Payable and Other Current Liabilities
12 Months Ended
Dec. 31, 2014
Payables and Accruals [Abstract]  
Accounts Payable and Other Current Liabilities
Accounts Payable and Other Current Liabilities
Accounts payable and other current liabilities consisted of: 
 
As of December 31,
 
2014
 
2013
Accounts payable
$
328

 
$
344

Accrued payroll and related
229

 
210

Accrued sales and use taxes
194

 
193

Public liability and property damage insurance liabilities – current
121

 
136

Deferred revenue – current
89

 
87

Other
530

 
509

Accounts payable and other current liabilities
$
1,491

 
$
1,479