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Financing Arrangements (Tables)
9 Months Ended
Sep. 30, 2017
Financing Arrangements [Abstract]  
Schedule of Notes Payable
The following table summarizes the carrying value of notes payable at September 30, 2017 and December 31, 2016, respectively.
Millions of dollars
 
September 30, 2017
 
December 31, 2016
Commercial paper
 
$
1,138

 
$

Short-term borrowings to banks
 
304

 
34

Total notes payable
 
$
1,442

 
$
34