Other Current Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Other Assets [Abstract]
Derivative Asset	$ 1,326		$ 619
Deferred Receivables Consideration	496		446
Receivables from Customers	997		1,014
Financing Receivable, after Allowance for Credit Loss	458		395
Premiums Receivable, Net	21		41
Prepaid Expense, Current	302		318
Biodiesel tax credit	75		541
Tax receivables	576		579
Other Receivables	401		369
Other current assets	395		278
Total other current assets	5,047		4,600
Financing Receivable, Allowance for Credit Loss	5		3
Interest on financing receivables	8	$ 8
Reinsurance Recoverables	$ 78		$ 81