Fair Value Measurements - Reconciliation Of Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Unrealized gains (losses) relating to Level 3 liabilities	$ (346)	$ (297)	$ (892)	$ (1,100)
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	401	856	558	698
Total increase (decrease) in net realized/unrealized losses included in cost of products sold	340	287	866	1,061
Purchases	8	29	10	36
Sales	(12)		(75)
Settlements	(251)	(529)	(823)	(1,270)
Transfers into Level 3	22	10	50	136
Transfers out of Level 3	(7)	(17)	(85)	(25)
Balance at end of period	501	636	501	636
Level 3 | Inventory-  related  Payables
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	34	65	101	89
Total increase (decrease) in net realized/unrealized losses included in cost of products sold	(3)	(3)	(9)	(1)
Purchases	8	29	10	36
Sales	(12)		(75)
Settlements	0	0	0	(34)
Transfers into Level 3	0	0	0	1
Transfers out of Level 3	0	(4)	0	(4)
Balance at end of period	27	87	27	87
Level 3 | Commodity Derivative Contracts Losses
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period	367	791	457	603
Total increase (decrease) in net realized/unrealized losses included in cost of products sold	343	290	875	1,068
Purchases	0	0	0	0
Sales	0		0
Settlements	(251)	(529)	(823)	(1,236)
Transfers into Level 3	22	10	50	135
Transfers out of Level 3	(7)	(13)	(85)	(21)
Balance at end of period	$ 474	549	$ 474	549
Level 3 | Debt Conversion Option
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period		0		6
Total increase (decrease) in net realized/unrealized losses included in cost of products sold		0		(6)
Purchases		0		0
Settlements		0		0
Transfers into Level 3		0		0
Transfers out of Level 3		0		0
Balance at end of period		$ 0		$ 0