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Financing Arrangements (Tables)
3 Months Ended
Mar. 31, 2019
Debt Disclosure [Abstract]  
Schedule of Notes Payable
The following table summarizes the carrying value of notes payable at March 31, 2019 and December 31, 2018:
Millions of dollars
 
March 31, 2019
 
December 31, 2018
Commercial paper
 
$
800

 
$

Short-term borrowings due to banks
 
1,219

 
1,034

Total notes payable
 
$
2,019

 
$
1,034