EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net income attributable to Honeywell	$ 5,542	$ 4,779	$ 6,143
Weighted average shares outstanding	692.3	704.1	721.0
Earnings per share of common stock - basic	$ 8.01	$ 6.79	$ 8.52
Earnings Per Share, Diluted [Abstract]
Net income attributable to Honeywell	$ 5,542	$ 4,779	$ 6,143
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Weighted average shares outstanding	692.3	704.1	721.0
Dilutive securities issuable - stock plans	8.1	7.1	9.3
Total weighted average diluted shares outstanding	700.4	711.2	730.3
Earnings per share of common stock - assuming dilution	$ 7.91	$ 6.72	$ 8.41
Earnings Per Share Paragraph Details [Abstract]
Stock options excluded from diluted computations	1.7	5.5	2.5