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Related Party Transactions (Tables)
 3 Months Ended
Mar. 31, 2015
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 March 31,
 
 
2015
 
2014
Revenues
 
$
42

 
$
40

Expenditures
 
$
5

 
$
6