SEGMENT INFORMATION - Reconciliation of Adjusted EBIT to Net Income for Industrial Activities (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended		12 Months Ended
	Apr. 16, 2018	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net income		$ 559	$ 329	$ 1,447	$ 1,453
Income tax (expense) benefit		(192)	(79)	(579)	(347)
Restructuring expense of Industrial Activities		(11)	(15)	(19)	(21)
Net income (loss) from discontinued operations		0	(131)	0	116
Pre-tax gain from amortization of benefits modification		6		18
Amortization period of retirement benefits payable	4 years 6 months					4 years
Reduction of plan liability	$ 527					$ 100
Unallocated items, eliminations and other
Segment Reporting Information [Line Items]
Total Adjusted EBIT of Industrial Activities		(20)	(16)	(92)	(81)
Industrial Activities | Operating segments
Segment Reporting Information [Line Items]
Total Adjusted EBIT of Industrial Activities		670	420	1,753	1,385
Net income		751	539	2,026	1,684
Interest expense of Industrial Activities, net of interest income and eliminations		(27)	(21)	(97)	(92)
Foreign exchange gains (losses), net of Industrial Activities		(14)	21	(14)	6
Finance and non-service component of Pension and other post-employment benefit cost of Industrial Activities		35	33	112	102
Restructuring expense of Industrial Activities		(11)	(15)	(19)	(21)
Other discrete items of Industrial Activities		(20)	(26)	(78)	(38)
Separation costs		7	24	13	32
Loss from sale of business, held for sale		14		22
Asset write-downs				43
Industrial Activities | Operating segments | 2018 Modification of Healthcare Plan
Segment Reporting Information [Line Items]
Pre-tax gain from amortization of benefits modification		30	30	$ 90	$ 90
Amortization period of retirement benefits payable				4 years 6 months
Reduction of plan liability				$ 527
Industrial Activities | Operating segments | 2021 Modification of Healthcare Plan
Segment Reporting Information [Line Items]
Amortization period of retirement benefits payable					4 years
Reduction of plan liability					$ 101
Agriculture | Operating segments
Segment Reporting Information [Line Items]
Total Adjusted EBIT of Industrial Activities		666	415	1,755	1,396
Construction | Operating segments
Segment Reporting Information [Line Items]
Total Adjusted EBIT of Industrial Activities		24	21	90	70
Financial Services | Operating segments
Segment Reporting Information [Line Items]
Net income		86	96	263	259
Income tax (expense) benefit		$ (32)	$ (31)	$ (106)	$ (83)