FAIR VALUE MEASUREMENTS - Schedule of Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Total
Balance at beginning of period	$ 1,277	$ 898	$ 387	$ 501
Purchases	511	205	1,830	1,156
Sales	(872)	(610)	(2,088)	(1,760)
Settlements	164	191	349	499
Transfers into Level 3	1,147	344	2,099	895
Transfers out of Level 3	(402)	(220)	(896)	(837)
Translation adjustment	30	15	94	(10)
Balance at end of period	1,884	970	1,884	970
Cost of goods sold
Total
Total gains and losses (realized/unrealized) included in cost of goods sold	29	147	109	526
Readily Marketable Inventories
Readily Marketable Inventories
Balance at beginning of period	1,535	1,262	419	662
Total gains and losses (realized/unrealized) included in cost of goods sold	61	153	156	580
Purchases	548	215	2,254	1,594
Sales	(872)	(610)	(2,088)	(1,760)
Settlements	0	0	0	0
Transfers into Level 3	1,087	396	2,034	1,108
Transfers out of Level 3	(412)	(311)	(908)	(986)
Translation adjustment	35	23	115	(70)
Balance at end of period	$ 1,982	$ 1,128	$ 1,982	$ 1,128
Total
Fair value, asset, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities	$ 69	$ 124	$ 185	$ 488
Derivatives, Net
Derivatives, Net
Balance at beginning of period	15	13	30	71
Total gains and losses (realized/unrealized) included in cost of goods sold	(33)	(8)	(60)	(68)
Purchases	0	0	0	0
Sales	0	0	0	0
Settlements	0	0	0	0
Transfers into Level 3	80	16	90	20
Transfers out of Level 3	(2)	(4)	(3)	(6)
Translation adjustment	0	0	3	0
Balance at end of period	$ 60	$ 17	$ 60	$ 17
Total
Fair value, net derivative asset (liability), recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration]	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold	Cost of Product and Service Sold
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities	$ (20)	$ (11)	$ (47)	$ (50)
Trade Accounts Payable
Trade Accounts Payable
Balance at beginning of period	(273)	(377)	(62)	(232)
Purchases	(37)	(10)	(424)	(438)
Sales	0	0	0	0
Settlements	164	191	349	499
Transfers into Level 3	(20)	(68)	(25)	(233)
Transfers out of Level 3	12	95	15	155
Translation adjustment	(5)	(8)	(24)	60
Balance at end of period	(158)	(175)	(158)	(175)
Total
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities	1	1	7	14
Trade Accounts Payable | Cost of goods sold
Trade Accounts Payable
Total gains and losses (realized/unrealized) included in cost of goods sold	$ 1	$ 2	$ 13	$ 14