Fair Value Measurements (Fair Value Measurements At Reporting Date) (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets:
Derivative Asset	$ 1,846	$ 1,704
Liabilities:
Derivative Liability	1,322	1,543
Fair Value, Recurring [Member]
Assets:
Inventories carried at market	9,157	9,041
Cash Equivalents, at Carrying Value	397	405
Restricted Investments, at Fair Value	1,916	1,453
Total Assets	13,316	12,603
Liabilities:
Inventory-related payables	2,292	1,270
Total Liabilities	3,615	2,819
Fair Value, Recurring [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	1,608	1,337
Liabilities:
Derivative Liability	1,111	1,268
Fair Value, Recurring [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	238	258
Liabilities:
Derivative Liability	211	275
Fair Value, Recurring [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset		109
Fair Value, Recurring [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	1	6
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	397	405
Restricted Investments, at Fair Value	1,916	1,453
Total Assets	2,313	1,858
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
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	5,654	6,281
Cash Equivalents, at Carrying Value	0	0
Restricted Investments, at Fair Value	0	0
Total Assets	6,851	7,444
Liabilities:
Inventory-related payables	2,235	1,181
Total Liabilities	3,102	2,121
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	959	796
Liabilities:
Derivative Liability	656	665
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Foreign Exchange Contracts [Member]
Assets:
Derivative Asset	238	258
Liabilities:
Derivative Liability	211	275
Fair Value, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Interest Rate Contracts [Member]
Assets:
Derivative Asset		109
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	3,503	2,760
Cash Equivalents, at Carrying Value	0	0
Restricted Investments, at Fair Value	0	0
Total Assets	4,152	3,301
Liabilities:
Inventory-related payables	57	89
Total Liabilities	513	698
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Commodity Contracts [Member]
Assets:
Derivative Asset	649	541
Liabilities:
Derivative Liability	455	603
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
Fair Value, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Embedded Derivative Financial Instruments [Member]
Liabilities:
Derivative Liability	$ 1	$ 6