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Related Party Transactions Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2019
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions
The following table summarizes revenues earned by BNSF for services provided to related parties and expenditures to related parties (in millions):
 
 
Years ended December 31,
 
 
2019
 
2018
 
2017
Revenues
 
$
158

 
$
152

 
$
139

Expenditures
 
$
386

 
$
381

 
$
342