Derivative Instruments And Hedging Activities Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	$ 2,492	$ (7,562)	$ (3,918)	$ 372
Sales and other revenues	2,819,400	4,424,828	8,282,875	13,104,690
Gain (Loss) on Price Risk Hedge Ineffectiveness	(7,467)	12,633	34,314	(10,417)
Cost of products sold	2,377,238	3,403,767	6,647,960	10,307,856
Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Cash Flow Hedging Instruments	2,492	(7,562)	(3,918)	372
Commodity contracts | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	2,880	8,640	20,789	1,561
Commodity contracts | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	(2,170)	(1,720)	2,542	(2,995)
Foreign Currency Gain (Loss) [Member] | Other Nonoperating Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Price Risk Hedge Ineffectiveness	(8,177)	5,713	10,983	(8,983)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Cost and Expense, Operating	(4,586)	5,573	(3,411)	12,537
Reclassification out of Accumulated Other Comprehensive Income [Member] | Commodity contracts
Derivative Instruments, Gain (Loss) [Line Items]
Sales and other revenues	(5,217)	0	(5,168)	(1,799)
Cost of products sold	983	6,027	3,272	15,323
Operating Expenses	$ (352)	$ (454)	$ (1,515)	$ (987)