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v3.20.2

Short-Term Debt (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Short-term Debt [Line Items] |  |
Amount outstanding at period end | $ 500 | $ 595
Commercial Paper |  |
Short-term Debt [Line Items] |  |
Borrowing limit | 3,600 | 3,600
Amount outstanding at period end | 500 | 595
Average amount outstanding | 1,195 | 1,115
Maximum amount outstanding | $ 1,438 | $ 1,780
Weighted average interest rate, computed on a daily basis | 0.81% | 2.72%
Weighted average interest rate at period end | 0.66% | 2.34%

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- Definition For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, the maximum amount borrowed at any time during the period. + References No definition available. + Details
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