BUSINESS SEGMENT AND GEOGRAPHIC REGION INFORMATION - Identifiable Assets, Capital Expenditures for PPE, and Depreciation of PPE by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Total assets	$ 34,027	$ 31,824	$ 32,805
Goodwill	14,751	12,903	13,456
Other intangible assets	5,855	4,175	4,638
Assets held for sale	0	2,487
Capital expenditures for property, plant and equipment	575	389	587
Depreciation of property, plant and equipment	426	408	465
Operating segments
Segment Reporting Information [Line Items]
Total assets	9,515	8,160	9,820
Capital expenditures for property, plant and equipment	551	367	542
Depreciation of property, plant and equipment	374	352	413
Corporate
Segment Reporting Information [Line Items]
Total assets	3,906	4,099	3,514
Assets held for sale	0	2,487	1,377
Capital expenditures for property, plant and equipment	24	22	45
Depreciation of property, plant and equipment	52	56	52
Electrical Americas
Segment Reporting Information [Line Items]
Goodwill	7,417	6,456	6,352
Electrical Americas | Operating segments
Segment Reporting Information [Line Items]
Total assets	3,002	2,333	2,360
Capital expenditures for property, plant and equipment	180	95	160
Depreciation of property, plant and equipment	105	101	118
Electrical Global
Segment Reporting Information [Line Items]
Goodwill	4,183	4,295	4,106
Electrical Global | Operating segments
Segment Reporting Information [Line Items]
Total assets	2,579	2,334	2,319
Capital expenditures for property, plant and equipment	120	71	106
Depreciation of property, plant and equipment	97	94	93
Hydraulics
Segment Reporting Information [Line Items]
Goodwill	0	0	921
Hydraulics | Operating segments
Segment Reporting Information [Line Items]
Total assets	0	0	1,293
Capital expenditures for property, plant and equipment	34	41	80
Depreciation of property, plant and equipment	0	0	58
Aerospace
Segment Reporting Information [Line Items]
Goodwill	2,781	1,777	1,706
Aerospace | Operating segments
Segment Reporting Information [Line Items]
Total assets	1,729	1,363	1,562
Capital expenditures for property, plant and equipment	78	59	61
Depreciation of property, plant and equipment	69	53	37
Vehicle
Segment Reporting Information [Line Items]
Goodwill	290	293	291
Vehicle | Operating segments
Segment Reporting Information [Line Items]
Total assets	1,985	1,950	2,145
Capital expenditures for property, plant and equipment	112	77	127
Depreciation of property, plant and equipment	95	98	102
eMobility
Segment Reporting Information [Line Items]
Goodwill	80	82	80
eMobility | Operating segments
Segment Reporting Information [Line Items]
Total assets	220	180	141
Capital expenditures for property, plant and equipment	27	24	8
Depreciation of property, plant and equipment	$ 8	$ 6	$ 5