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v3.20.2

Derivatives and Financial Instruments (Summary of Commodity Balance Sheet) (Details) - USD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Assets |  |
Liabilities | $ (1,241) | $ (1,188)
Effect of Collateral Netting | 0 | 0
Liabilities |  |
Assets | 1,241 | 1,188
Effect of Collateral Netting | 168 | 80
Total |  |
Effect of Collateral Netting | 168 | 80
Not Designated as Hedging Instrument | Commodity |  |
Liabilities |  |
Effect of Collateral Netting | 168 | 80
Total |  |
Assets | 1,272 | 1,214
Liabilities | (1,425) | (1,282)
Effect of Collateral Netting | 168 | 80
Net Carrying Value Presented on the Balance Sheet | 15 | 12
Not Designated as Hedging Instrument | Commodity | Prepaid expenses and other current assets |  |
Assets |  |
Assets | 56 | 23
Liabilities | (25) | 0
Effect of Collateral Netting | 0 | 0
Net Carrying Value Presented on the Balance Sheet | 31 | 23
Not Designated as Hedging Instrument | Commodity | Other assets |  |
Assets |  |
Assets | 0 | 3
Liabilities | 0 | 0
Effect of Collateral Netting | 0 | 0
Net Carrying Value Presented on the Balance Sheet | 0 | 3
Not Designated as Hedging Instrument | Commodity | Other accruals |  |
Liabilities |  |
Assets | 1,216 | 1,188
Liabilities | (1,399) | (1,281)
Effect of Collateral Netting | 168 | 80
Net Carrying Value Presented on the Balance Sheet | (15) | (13)
Total |  |
Effect of Collateral Netting | 168 | 80
Not Designated as Hedging Instrument | Commodity | Other liabilities and deferred credits |  |
Liabilities |  |
Assets | 0 | 0
Liabilities | (1) | (1)
Effect of Collateral Netting | 0 | 0
Net Carrying Value Presented on the Balance Sheet | (1) | (1)
Total |  |
Effect of Collateral Netting | $ 0 | $ 0

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