DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Income Effect of Derivative Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Derivative [Line Items]
Commodity contracts	$ 1	$ (410)	$ 132	$ (539)
Derivatives not designated as hedging instruments	40	163	38	318
Designated as Hedging Instrument \| Cash flow hedges \| Foreign currency exchange contracts
Derivative [Line Items]
Foreign currency exchange contracts	9	21	(3)	95
(Losses)/gains on derivative instruments	93	(527)	229	(605)
Designated as Hedging Instrument \| Cash flow hedges \| Commodity contracts
Derivative [Line Items]
Commodity contracts	59	(1)	87	10
(Losses)/gains on derivative instruments	(38)	12	40	8
Designated as Hedging Instrument \| Fair value hedges \| Interest rate contracts
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	(7)	(44)	(14)	(92)
Fair value changes on hedging instruments	(187)	235	(365)	564
Fair value changes on hedged debt	186	(219)	356	(543)
Designated as Hedging Instrument \| Fair value hedges \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	(14)	(18)	(26)	(43)
Fair value changes on hedging instruments	(37)	358	(240)	504
Fair value changes on hedged debt	29	(339)	233	(475)
Derivatives not designated as hedging instruments \| Foreign currency exchange contracts
Derivative [Line Items]
Derivatives not designated as hedging instruments	(2)	(69)	(36)	(9)
Derivatives not designated as hedging instruments \| Foreign currency exchange contracts \| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold
Derivative [Line Items]
Derivatives not designated as hedging instruments	(49)	56	(112)	126
Derivatives not designated as hedging instruments \| Foreign currency exchange contracts \| Income Statement Location [Axis]: us-gaap:NonoperatingIncomeExpense
Derivative [Line Items]
Derivatives not designated as hedging instruments	47	(125)	76	(135)
Derivatives not designated as hedging instruments \| Commodity contracts
Derivative [Line Items]
Derivatives not designated as hedging instruments	(13)	11	28	22
Derivatives not designated as hedging instruments \| Interest rate contracts
Derivative [Line Items]
Derivatives not designated as hedging instruments	1	(18)	92	(63)
Derivatives not designated as hedging instruments \| Cross-currency interest rate swap contracts
Derivative [Line Items]
Derivatives not designated as hedging instruments	$ 16	$ 246	$ (74)	$ 348

Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 10
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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Net gain (loss) relating to components of the gain (loss) on the fair value hedging instrument excluded from the assessment of fair value hedge effectiveness. Recognized in earnings.

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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