EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Net income attributable to Honeywell	$ 1,392	$ 1,319	$ 2,718	$ 2,535
Weighted average shares outstanding	764.2	763.3	763.6	765.5
Earnings per share of common stock - basic	$ 1.82	$ 1.73	$ 3.56	$ 3.31
Assuming dilution
Net income attributable to Honeywell	$ 1,392	$ 1,319	$ 2,718	$ 2,535
Average shares
Weighted average shares outstanding	764.2	763.3	763.6	765.5
Dilutive securities issuable - stock plans	9.8	11.6	10.4	11.7
Total weighted average diluted shares outstanding	774.0	774.9	774.0	777.2
Earnings per share of common stock - assuming dilution	$ 1.8	$ 1.7	$ 3.51	$ 3.26
Earnings Per Share Paragraph Details [Abstract]
Stock options excluded from diluted computations	5.0	6.7	3.5	7.6