Accrued Expenses And Other Payables (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Accrued Liabilities and Other Liabilities [Abstract]
Derivative Liability	$ 2,128	$ 2,584
Employee-related Liabilities	338	396
Accrued Income Taxes, Current	137	41
Accrual for Taxes Other than Income Taxes, Current	140	127
Biodiesel tax credit payable	5	5
Liability for Claims and Claims Adjustment Expense	246	238
Contract with Customer, Liability	555	626
Operating Lease, Liability, Current	262	261
Accrued expenses and other payables	899	926
Total accrued expenses and other payables	4,448	4,943
Loss Contingency Accrual	$ 45	$ 7