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Income Effect of Derivative Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ (427)	$ (71)	$ (719)	$ (82)
Held collateral	225		225		$ 26
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Foreign currency exchange contracts [Member]
Derivative [Line Items]
Gain/(Loss) Reclassified from AOCI to Income	(44)	(161)	(224)	(349)
Gains/(losses) on derivative instruments	535	225	641	(346)
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Reclassified from AOCI to Income	9	50	151	78
Gains/(losses) on derivative instruments	(90)	114	(166)	294
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	(8)	(2)	(17)	(6)
Fair value changes on hedging instruments	(66)	(28)	(164)	(67)
Fair value changes on hedged debt	67	25	173	58
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	(39)	98	62	299
Fair value changes on hedging instruments	(600)	(142)	(1,922)	(680)
Fair value changes on hedged debt	615	135	1,991	638
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	44	123	125	209
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Nonoperating Income (Expense) [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	112	79	137	87
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Cost of Sales
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(68)	44	(12)	122
Not Designated as Hedging Instrument [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(41)	25	(72)	153
Not Designated as Hedging Instrument [Member] \| Cross-currency interest rate swap contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(494)	(194)	(1,164)	(390)
Not Designated as Hedging Instrument [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ 130	$ 0	$ 342	$ (25)