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Derivatives - Gains and Losses on Derivatives (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on interest rate swaps and Berkshire warrants, net | $ 88 | $ (33) | $ (573) | $ (33)
Collars and Call Options | Net sales |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on interest rate swaps and Berkshire warrants, net | 110 | 75 | 1,067 | 75
Marketing Derivatives | Net sales |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on interest rate swaps and Berkshire warrants, net | (18) | 91 | 0 | (119)
Interest Rate Swaps | Gains (losses) on interest rate swaps and warrants, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on interest rate swaps and Berkshire warrants, net | 88 | (53) | (577) | (53)
Warrant | Gains (losses) on interest rate swaps and warrants, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (losses) on interest rate swaps and Berkshire warrants, net | $ 0 | $ 20 | $ 5 | $ 20

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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 + Details
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