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Derivatives and Risk Management Activities - Financial Impact (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | $ 52 | $ (339) | $ 260 | $ (391)
Supply and Logistics segment revenues |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 58 | (345) | 238 | (396)
Field operating costs |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 4 |  | 11 | 1
Interest expense, net |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | (3) | (2) | (5) | (1)
Other income/(expense), net |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | (7) | 8 | 16 | 5
Commodity Derivatives |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 60 | (339) | 242 | (383)
Foreign Currency Derivatives |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 2 | (6) | 7 | (12)
Preferred Distribution Rate Reset Option |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | (7) | 8 | 16 | 5
Interest Rate Derivatives |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | (3) | (2) | (5) | (1)
Derivatives in Hedging Relationships | Interest Rate Derivatives | Interest expense, net |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | (3) | (2) | (5) | (1)
Derivatives Not Designated as a Hedge | Commodity Derivatives | Supply and Logistics segment revenues |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 56 | (339) | 231 | (384)
Derivatives Not Designated as a Hedge | Commodity Derivatives | Field operating costs |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 4 |  | 11 | 1
Derivatives Not Designated as a Hedge | Foreign Currency Derivatives | Supply and Logistics segment revenues |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | 2 | (6) | 7 | (12)
Derivatives Not Designated as a Hedge | Preferred Distribution Rate Reset Option | Other income/(expense), net |  |  |  |
Impact of derivative activities recognized in earnings |  |  |  |
Total gain/(loss) on derivatives recognized in net income | $ (7) | $ 8 | $ 16 | $ 5

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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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