Other Current Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Other Assets [Abstract]
Derivative Asset	$ 1,065		$ 1,065		$ 619
Deferred Receivables Consideration	1,149		1,149		446
Receivables from Customers	1,086		1,086		1,014
Financing Receivable, after Allowance for Credit Loss	551		551		395
Premiums Receivable, Net	66		66		41
Prepaid Expense, Current	337		337		318
Biodiesel tax credit	134		134		541
Tax receivables	606		606		579
Other Receivables	297		297		369
Other current assets	263		263		278
Total other current assets	5,554		5,554		4,600
Financing Receivable, Allowance for Credit Loss	5		5		3
Interest on financing receivables	3	$ 6	11	$ 14
Reinsurance Recoverables	$ 74		$ 74		$ 81