Fair Value Measurements (Fair Value Measurements At Reporting Date) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets:
Derivative Asset	$ 2,520	$ 1,646
Liabilities:
Derivative Liability	2,125	1,950
Fair Value, Recurring [Member]
Assets:
Inventories carried at market	8,931	9,769
Cash Equivalents, at Carrying Value	399	448
Restricted Investments, at Fair Value	1,507	1,338
Total Assets	13,357	13,201
Liabilities:
Inventory-related payables	1,030	965
Total Liabilities	3,166	2,930
Fair Value, Recurring [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	1,893	1,362
Liabilities:
Derivative Liability	1,902	1,759
Fair Value, Recurring [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	532	238
Liabilities:
Derivative Liability	223	191
Fair Value, Recurring [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset	95	46
Fair Value, Recurring [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	11	15
Fair Value, Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Assets:
Inventories carried at market	0	0
Cash Equivalents, at Carrying Value	399	448
Restricted Investments, at Fair Value	1,507	1,338
Total Assets	1,906	1,786
Liabilities:
Inventory-related payables	0	0
Total Liabilities	0	0
Fair Value, Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	0	0
Liabilities:
Derivative Liability	0	0
Fair Value, Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	0	0
Liabilities:
Derivative Liability	0	0
Fair Value, Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset	0	0
Fair Value, Recurring [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	0	0
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Inventories carried at market	5,686	6,765
Cash Equivalents, at Carrying Value	0	0
Restricted Investments, at Fair Value	0	0
Total Assets	7,326	7,951
Liabilities:
Inventory-related payables	975	859
Total Liabilities	2,140	1,994
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	1,013	902
Liabilities:
Derivative Liability	942	944
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	532	238
Liabilities:
Derivative Liability	223	191
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset	95	46
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	0	0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Inventories carried at market	3,245	3,004
Cash Equivalents, at Carrying Value	0	0
Restricted Investments, at Fair Value	0	0
Total Assets	4,125	3,464
Liabilities:
Inventory-related payables	55	106
Total Liabilities	1,026	936
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	880	460
Liabilities:
Derivative Liability	960	815
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	0	0
Liabilities:
Derivative Liability	0	0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset	0	0
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	$ 11	$ 15