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Income Effect of Derivative Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ (301)	$ (57)	$ (292)	$ (11)
Held collateral	147		147		$ 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	(90)	(173)	(180)	(188)
Gains/(losses) on derivative instruments	234	(110)	106	(571)
Designated as Hedging Instrument [Member] \| Cash Flow Hedging [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Reclassified from AOCI to Income	84	20	142	28
Gains/(losses) on derivative instruments	(360)	100	(76)	180
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	(6)	(1)	(9)	(4)
Fair value changes on hedging instruments	(61)	11	(98)	(39)
Fair value changes on hedged debt	65	(11)	106	33
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Net interest settlements and accruals on hedging instruments	25	100	101	201
Fair value changes on hedging instruments	(336)	103	(1,322)	(538)
Fair value changes on hedged debt	385	(87)	1,376	503
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	127	(147)	81	86
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Nonoperating Income (Expense) [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	27	(44)	25	8
Not Designated as Hedging Instrument [Member] \| Foreign currency exchange contracts [Member] \| Cost of Sales
Derivative [Line Items]
Gain/(Loss) Recognized in Income	100	(103)	56	78
Not Designated as Hedging Instrument [Member] \| Commodity Contract [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(140)	73	(31)	128
Not Designated as Hedging Instrument [Member] \| Cross-currency interest rate swap contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	(443)	49	(670)	(196)
Not Designated as Hedging Instrument [Member] \| Interest rate contracts [Member]
Derivative [Line Items]
Gain/(Loss) Recognized in Income	$ 89	$ 6	$ 212	$ (25)