REPOSITIONING AND OTHER CHARGES 3 (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	$ 126,000,000	$ 266,000,000	$ 210,000,000	$ 457,000,000
Corporate
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	45,000,000	147,000,000	101,000,000	255,000,000
Aerospace
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	4,000,000	35,000,000	20,000,000	103,000,000
Honeywell Building Technologies
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	0	9,000,000	8,000,000	13,000,000
Performance Materials and Technologies
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	34,000,000	69,000,000	33,000,000	73,000,000
Safety and Productivity Solutions
Pretax Impact Of Total Net Repositioning And Other Charges By Segment [Line Items]
Total net repositioning charges	$ 43,000,000	$ 6,000,000	$ 48,000,000	$ 13,000,000