FINANCIAL INSTRUMENTS - Effects of Derivatives on Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total revenues	$ 19,084	$ 18,569	$ 54,769	$ 53,893
Debt extinguishment costs	0	0	0	1,416
Interest and other financial charges	390	462	1,191	1,450
SG&A	2,868	2,745	9,239	8,503
Other	14,567	13,752	39,127	41,315
Revenues
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified to earnings	(3)	6	1	20
Fair Value Hedges
Total effect of derivatives not designated as hedges	1	2	3	(1)
Debt Extinguishment Costs
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified to earnings
Fair Value Hedges
Total effect of derivatives not designated as hedges		0		48
Interest Expense
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified to earnings	(4)	(7)	(17)	(29)
Fair Value Hedges
Hedged items		190	127	1,375
Derivatives designated as hedging instruments		(241)	(143)	(1,510)
Total effect of fair value hedges		(52)	(16)	(135)
Total effect of derivatives not designated as hedges	0	(17)	0	(19)
SG&A
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified to earnings	(1)	0	(1)	1
Fair Value Hedges
Total effect of derivatives not designated as hedges	33	(65)	(421)	161
Other
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain (loss) reclassified to earnings	6	(18)	(46)	(38)
Fair Value Hedges
Total effect of derivatives not designated as hedges	(465)	(109)	(603)	411
Currency exchange contracts | Revenues
Fair Value Hedges
Total effect of derivatives not designated as hedges	0	2	0	(4)
Currency exchange contracts | Interest Expense
Fair Value Hedges
Total effect of derivatives not designated as hedges		(18)		(18)
Currency exchange contracts | SG&A
Fair Value Hedges
Total effect of derivatives not designated as hedges	59	(66)	(236)	48
Currency exchange contracts | Other
Fair Value Hedges
Total effect of derivatives not designated as hedges	(521)	(149)	(829)	251
Interest rate, commodity and equity contracts | Revenues
Fair Value Hedges
Total effect of derivatives not designated as hedges	1	0	3	2
Interest rate, commodity and equity contracts | Debt Extinguishment Costs
Fair Value Hedges
Total effect of derivatives not designated as hedges				48
Interest rate, commodity and equity contracts | Interest Expense
Fair Value Hedges
Total effect of derivatives not designated as hedges		2		0
Interest rate, commodity and equity contracts | SG&A
Fair Value Hedges
Total effect of derivatives not designated as hedges	(26)	1	(185)	113
Interest rate, commodity and equity contracts | Other
Fair Value Hedges
Total effect of derivatives not designated as hedges	$ 56	$ 41	$ 226	$ 160