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Derivative Assets And Liabilities Table - Partnership's Derivative Assets and Liabilities Amount of Gain (Loss) Recognized (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Amount of Gain/(Loss) Recognized in Income on Derivatives | $ (221) | $ (104) | $ (66) | $ (224)
Gains (losses) on interest rate derivatives | (123) | (3) | 71 | (332)
Commodity Derivatives [Member] |  |  |  |
Amount of Gain/(Loss) Recognized in Income on Derivatives | (93) | (96) | (135) | 97
Commodity Derivatives - Trading [Member] |  |  |  |
Amount of Gain/(Loss) Recognized in Income on Derivatives | $ (5) | $ (5) | $ (2) | $ 11

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