EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Basic
Net income attributable to Honeywell	$ 1,134	$ 1,427
Weighted average shares outstanding (in shares)	684.7	696.2
Earnings per share of common stock - basic (in dollars per share)	$ 1.66	$ 2.05
Assuming Dilution
Net income attributable to Honeywell	$ 1,134	$ 1,427
Average Shares
Weighted average shares outstanding (in shares)	684.7	696.2
Dilutive securities issuable - stock plans (in shares)	6.6	8.3
Total weighted average shares outstanding (in shares)	691.3	704.5
Earnings per share of common stock - assuming dilution (in dollars per share)	$ 1.64	$ 2.03
Stock options excluded from diluted computations (in shares)	3.0	1.0
Total shareowners' equity (in shares)	680.7	694.6
Shares issued (in shares)	957.6	957.6