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Income Effect of Derivative Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ (231)	$ (104)
Held collateral	$ 33		$ 40
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of sales
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Foreign currency exchange contracts [Member]
Derivative [Line Items]
Gain/(Loss) Reclassified from AOCI to Income	$ 14	26
Gains/(losses) on derivative instruments	288	(63)
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Reclassified from AOCI to Income	(26)	(9)
Gains/(losses) on derivative instruments	(32)	8
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Cross-currency interest rate swap contracts [Member]
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	(29)	(14)
Fair value changes on hedging instruments	(64)	22
Fair value changes on hedged debt	62	(19)
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	(96)	(140)
Fair value changes on hedging instruments	(243)	250
Fair value changes on hedged debt	220	(279)
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	69	(3)
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Nonoperating Income (Expense) [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	92	(22)
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Cost of Sales
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(23)	19
Not Designated as Hedging Instrument [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(20)	(11)
Not Designated as Hedging Instrument [Member] \| Cross-currency interest rate swap contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(166)	85
Not Designated as Hedging Instrument [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ 48	$ (12)