Derivative Instruments And Hedging Activities Derivatives and Hedging Instruments Gains Losses due to Settlements Hedge Ineffectiveness (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Trading Activity, Gains and Losses, Net [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	$ (13,324)	$ 13,948
Sales and other revenues	3,400,545	3,897,247
Cost of products sold	2,693,726	3,199,205
Reclassification out of Accumulated Other Comprehensive Income [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Other Cost and Expense, Operating	6,576	1,642
Commodity Contract [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	(13,324)	13,948
Commodity Contract [Member] \| Reclassification out of Accumulated Other Comprehensive Income [Member]
Trading Activity, Gains and Losses, Net [Line Items]
Sales and other revenues	5,452	(1,799)
Cost of products sold	1,830	3,622
Operating Expenses	$ (706)	$ (181)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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-Publisher FASB
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Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be ineffective.

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