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Debt (Tables)
9 Months Ended
Sep. 30, 2020
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Commercial paper outstanding, which is included in Short-term debt and current portion of long-term debt in the Condensed Consolidated Statements of Financial Position, is as follows (in millions):
As ofSeptember 30, 2020December 31, 2019
Commercial paper outstanding$25 $112 
The weighted average commercial paper outstanding and its related interest rates are as follows (in millions, except percentages):
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
Weighted average commercial paper outstanding$97 $656 $453 $541 
Weighted average interest rate of commercial paper outstanding2.45 %0.15 %1.47 %0.43 %