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Related Party Transactions Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2013
Related Party Transaction [Line Items]  
Schedule of Related Party Transactions [Table Text Block]
BNSF engages in various arm's-length transactions with affiliates in the ordinary course of business. The following tables summarize revenues earned by BNSF for services provided to affiliates and expenditures to affiliates (in millions):
 
 
Three Months Ended September 30,
 
 
2013
 
2012
Revenues
 
$
40

 
$
14

Expenditures
 
$
5

 
$
7


 
 
Nine Months Ended September 30,
 
 
2013
 
2012
Revenues
 
$
106

 
$
33

Expenditures
 
$
15

 
$
18