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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, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Amount of Gain/(Loss) Recognized in Income on Derivatives | $ (171) | $ (259) | $ (251) | $ (261)
Gains (losses) on interest rate derivatives | (122) | 20 | (196) | 72
Commodity Derivatives [Member] |  |  |  |
Gain (Loss) on Components Excluded from Assessment of Price Risk Hedge Effectiveness | 0 | 6 | 0 | 9
Amount of Gain/(Loss) Recognized in Income on Derivatives | (29) | (295) | (41) | (366)
Commodity Derivatives - Trading [Member] |  |  |  |
Amount of Gain/(Loss) Recognized in Income on Derivatives | $ (20) | $ 16 | $ (14) | $ 33

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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