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Financing Arrangements (Tables)
9 Months Ended
Sep. 30, 2020
Debt Disclosure [Abstract]  
Schedule of Notes Payable
The following table summarizes the carrying value of notes payable at September 30, 2020 and December 31, 2019:
Millions of dollarsSeptember 30, 2020December 31, 2019
Commercial paper$ $274 
Short-term borrowings due to banks1,735 20 
Total notes payable$1,735 $294