EARNINGS (LOSS) PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Net income attributable to Honeywell	$ 1,167	$ 990	$ 3,283	$ 2,977
Weighted average shares outstanding	784.5	786.3	784.6	786.6
Earnings per share of common stock - basic	$ 1.49	$ 1.26	$ 4.18	$ 3.78
Assuming dilution
Net income attributable to Honeywell	$ 1,167	$ 990	$ 3,283	$ 2,977
Average shares
Weighted average shares outstanding	784.5	786.3	784.6	786.6
Dilutive securities issuable - stock plans	10.5	10.8	11.0	10.9
Total weighted average shares outstanding	795.0	797.1	795.6	797.5
Earnings per share of common stock - assuming dilution	$ 1.47	$ 1.24	$ 4.13	$ 3.73
Earnings Per Share Paragraph Details [Abstract]
Stock options excluded from diluted computations	5.6	0.2	4.5	4.7