SEGMENT FINANCIAL DATA - Segment Reporting Schedule (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 9,728	$ 9,212	$ 28,410	$ 27,222
Total segment profit	2,296	2,170	6,589	6,298
Interest and other financial charges	(297)	(206)	(767)	(563)
Interest income	110	89	325	241
Amortization of acquisition-related intangibles	(120)	(87)	(275)	(216)
Impairment of assets held for sale	125	0	125	0
Repositioning and other charges	(52)	(88)	(189)	(331)
Income before taxes	1,824	1,967	5,669	5,653
Product
Segment Reporting Information [Line Items]
Net sales	6,590	6,294	19,330	19,045
Service
Segment Reporting Information [Line Items]
Net sales	3,138	2,918	9,080	8,177
Corporate and All Other
Segment Reporting Information [Line Items]
Net sales	7	2	19	5
Total segment profit	(129)	(87)	(337)	(287)
Corporate and All Other | Service
Segment Reporting Information [Line Items]
Net sales	7	2	19	5
Segment Reconciling Items
Segment Reporting Information [Line Items]
Interest and other financial charges	(297)	(206)	(767)	(563)
Interest income	110	89	325	241
Amortization of acquisition-related intangibles	(120)	(87)	(275)	(216)
Impairment of assets held for sale	125	0	125	0
Stock compensation expense	(45)	(39)	(153)	(148)
Repositioning and other charges	(52)	(88)	(189)	(331)
Other expense	(91)	(9)	(179)	(38)
Income before taxes	1,824	1,967	5,669	5,653
Segment Reconciling Items | Pension Plan
Segment Reporting Information [Line Items]
Pension ongoing income	145	131	430	391
Segment Reconciling Items | Other Postretirement Benefits Plan
Segment Reporting Information [Line Items]
Pension ongoing income	3	6	13	19
Aerospace Technologies | Operating Segments
Segment Reporting Information [Line Items]
Net sales	3,912	3,499	11,472	9,951
Total segment profit	1,082	968	3,177	2,729
Repositioning and other charges	7	(10)	(1)	(21)
Aerospace Technologies | Operating Segments | Product
Segment Reporting Information [Line Items]
Net sales	2,148	1,824	6,300	5,294
Aerospace Technologies | Operating Segments | Service
Segment Reporting Information [Line Items]
Net sales	1,764	1,675	5,172	4,657
Industrial Automation | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,501	2,630	7,485	8,160
Total segment profit	508	519	1,459	1,649
Repositioning and other charges	(21)	(26)	(49)	(115)
Industrial Automation | Operating Segments | Product
Segment Reporting Information [Line Items]
Net sales	1,755	1,885	5,332	6,105
Industrial Automation | Operating Segments | Service
Segment Reporting Information [Line Items]
Net sales	746	745	2,153	2,055
Building Automation | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,745	1,530	4,742	4,527
Total segment profit	452	392	1,199	1,164
Repositioning and other charges	(1)	(9)	(1)	(40)
Building Automation | Operating Segments | Product
Segment Reporting Information [Line Items]
Net sales	1,281	1,172	3,492	3,463
Building Automation | Operating Segments | Service
Segment Reporting Information [Line Items]
Net sales	464	358	1,250	1,064
Energy and Sustainability Solutions | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,563	1,551	4,692	4,579
Total segment profit	383	378	1,091	1,043
Repositioning and other charges	(1)	(19)	(20)	(24)
Energy and Sustainability Solutions | Operating Segments | Product
Segment Reporting Information [Line Items]
Net sales	1,406	1,414	4,206	4,183
Energy and Sustainability Solutions | Operating Segments | Service
Segment Reporting Information [Line Items]
Net sales	$ 157	$ 137	$ 486	$ 396