EARNINGS (LOSS) PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]
Net income attributable to Honeywell	$ 990	$ 950	$ 2,977	$ 2,675
Weighted average shares outstanding	786.3	783.6	786.6	780.7
Earnings per share of common stock - basic	$ 1.26	$ 1.21	$ 3.78	$ 3.43
Assuming dilution
Net income attributable to Honeywell	$ 990	$ 950	$ 2,977	$ 2,675
Average shares
Weighted average shares outstanding	786.3	783.6	786.6	780.7
Dilutive securities issuable - stock plans	10.8	8.9	10.9	9.7
Total weighted average diluted shares outstanding	797.1	792.5	797.5	790.4
Earnings per share of common stock - assuming dilution	$ 1.24	$ 1.20	$ 3.73	$ 3.38
Earnings Per Share Paragraph Details [Abstract]
Stock options excluded from diluted computations	0.2	16.6	4.7	14.3