REVENUE RECOGNITION AND CONTRACTS WITH CUSTOMERS - Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 8,864	$ 8,376
Net sales - percentage	100.00%	100.00%
Corporate and All Other
Disaggregation of Revenue [Line Items]
Net sales	$ 2	$ 1
Product
Disaggregation of Revenue [Line Items]
Net sales	$ 6,310	$ 6,132
Net sales - percentage	71.00%	73.00%
Product | Transferred point in time
Disaggregation of Revenue [Line Items]
Net sales - percentage	58.00%	59.00%
Product | Transferred over time
Disaggregation of Revenue [Line Items]
Net sales - percentage	13.00%	14.00%
Service
Disaggregation of Revenue [Line Items]
Net sales	$ 2,554	$ 2,244
Net sales - percentage	29.00%	27.00%
Service | Corporate and All Other
Disaggregation of Revenue [Line Items]
Net sales	$ 2	$ 1
Service | Transferred point in time
Disaggregation of Revenue [Line Items]
Net sales - percentage	9.00%	8.00%
Service | Transferred over time
Disaggregation of Revenue [Line Items]
Net sales - percentage	20.00%	19.00%
Aerospace | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 3,111	$ 2,749
Aerospace | Commercial Aviation Original Equipment | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	541	478
Aerospace | Commercial Aviation Aftermarket | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,423	1,168
Aerospace | Defense and Space | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,147	1,103
Aerospace | Product | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,672	1,461
Aerospace | Service | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,439	1,288
Honeywell Building Technologies | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,487	1,429
Honeywell Building Technologies | Products | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	908	879
Honeywell Building Technologies | Building Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	579	550
Honeywell Building Technologies | Product | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,132	1,082
Honeywell Building Technologies | Service | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	355	347
Performance Materials and Technologies | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	2,749	2,453
Performance Materials and Technologies | UOP | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	565	480
Performance Materials and Technologies | Process Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,288	1,152
Performance Materials and Technologies | Advanced Materials | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	896	821
Performance Materials and Technologies | Product | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	2,182	1,956
Performance Materials and Technologies | Service | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	567	497
Safety and Productivity Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,515	1,744
Safety and Productivity Solutions | Sensing and Safety Technologies | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	704	753
Safety and Productivity Solutions | Productivity Solutions and Services | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	347	399
Safety and Productivity Solutions | Warehouse and Workflow Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	464	592
Safety and Productivity Solutions | Product | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	1,324	1,633
Safety and Productivity Solutions | Service | Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	$ 191	$ 111