v3.26.1
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 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Total        
Balance at beginning of period $ 2,193 $ 1,089 $ 1,333 $ 387
Purchases 2,013 556 4,029 1,319
Sales (1,955) (642) (3,310) (1,216)
Settlements 173 163 197 185
Transfers into Level 3 1,362 388 2,116 952
Transfers out of Level 3 (1,648) (327) (2,796) (494)
Translation adjustment 11 46 22 64
Balance at end of period 2,516 1,277 2,516 1,277
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold        
Total        
Total gains and losses (realized/unrealized) included in Cost of goods sold 367 4 925 80
Readily Marketable Inventories        
Readily Marketable Inventories        
Balance at beginning of period 2,532 1,362 1,407 419
Total gains and losses (realized/unrealized) included in Cost of goods sold 352 21 912 95
Purchases 2,168 681 4,454 1,706
Sales (1,955) (642) (3,310) (1,216)
Settlements 0 0 0 0
Transfers into Level 3 1,372 382 2,114 947
Transfers out of Level 3 (1,631) (329) (2,758) (496)
Translation adjustment 13 60 32 80
Balance at end of period $ 2,851 $ 1,535 $ 2,851 $ 1,535
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 $ 312 $ 41 $ 910 $ 117
Derivatives, Net        
Derivatives, Net        
Balance at beginning of period (3) 28 21 30
Total gains and losses (realized/unrealized) included in Cost of goods sold 23 (21) 11 (27)
Purchases 0 0 0 0
Sales 0 0 0 0
Settlements 0 0 0 0
Transfers into Level 3 (8) 7 11 10
Transfers out of Level 3 (29) 0 (56) (1)
Translation adjustment 0 1 (4) 3
Balance at end of period $ (17) $ 15 $ (17) $ 15
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 $ 25 $ (26) $ (68) $ (29)
Trade Accounts Payable        
Trade Accounts Payable        
Balance at beginning of period (336) (301) (95) (62)
Purchases (155) (125) (425) (387)
Sales 0 0 0 0
Settlements 173 163 197 185
Transfers into Level 3 (2) (1) (9) (5)
Transfers out of Level 3 12 2 18 3
Translation adjustment (2) (15) (6) (19)
Balance at end of period (318) (273) (318) (273)
Total        
Changes in unrealized gains (losses) relating to Level 3 assets and liabilities (8) 5 1 12
Trade Accounts Payable | Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold        
Trade Accounts Payable        
Total gains and losses (realized/unrealized) included in Cost of goods sold $ (8) $ 4 $ 2 $ 12