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Supplemental Cash Flow Information (Tables)
 12 Months Ended
Dec. 31, 2015
Supplemental Cash Flow Elements  
Supplemental Cash Flow Information

 

 

 

 

 

 

 

 

 

 

 

(Millions)

    

2015

    

2014

    

2013

 

Cash income tax payments, net of refunds

 

$
2,331

 

$
1,968

 

$
1,803

 

Cash interest payments

 

 
134

 

 
178

 

 
169

 

Capitalized interest

 

 
13

 

 
15

 

 
21