REPOSITIONING AND OTHER CHARGES 3 (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	$ 280,000,000	$ 126,000,000	$ 342,000,000	$ 210,000,000
Corporate
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	45,000,000	45,000,000	44,000,000	101,000,000
Aerospace
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	107,000,000	4,000,000	118,000,000	20,000,000
Honeywell Building Technologies
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	33,000,000	0	58,000,000	8,000,000
Performance Materials and Technologies
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	84,000,000	34,000,000	105,000,000	33,000,000
Safety and Productivity Solutions
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	$ 11,000,000	$ 43,000,000	$ 17,000,000	$ 48,000,000