Derivative Instruments And Hedging Activities Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	$ 6,914	$ (6,014)	$ (6,410)	$ 7,934
Sales and other revenues	2,062,930	4,782,615	5,463,475	8,679,862
Gain (Loss) on Price Risk Hedge Ineffectiveness	(26,595)	(6,011)	41,781	(23,050)
Cost of products sold	1,576,996	3,704,884	4,270,722	6,904,089
Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	6,914	(6,014)	(6,410)	7,934
Commodity Contract [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	(7,180)	338	17,909	(7,079)
Commodity Contract [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	(5,100)	741	4,712	(1,275)
Foreign Currency Gain (Loss) [Member] | Other Nonoperating Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	(14,315)	(7,090)	19,160	(14,696)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Cost and Expense, Operating	(5,401)	5,321	1,175	6,963
Reclassification out of Accumulated Other Comprehensive Income [Member] | Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Sales and other revenues	(5,403)	0	49	(1,799)
Cost of products sold	459	5,674	2,289	9,295
Operating Expenses	$ (457)	$ (353)	$ (1,163)	$ (533)