UNAUDITED QUARTERLY FINANCIAL INFORMATION (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended			1 Months Ended	12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Jul. 31, 2011 Consumer Products Group [Member]	Dec. 31, 2011 Consumer Products Group [Member]	Dec. 31, 2010 Consumer Products Group [Member]	Dec. 31, 2009 Consumer Products Group [Member]
Selected Quarterly Financial Information Abstract
Net sales	$ 9,473	$ 9,298	$ 9,086	$ 8,672	$ 8,749	$ 8,139	$ 7,926	$ 7,536	$ 36,529	$ 32,350	$ 29,951
Gross Profit	1,038	2,265	2,422	2,248	1,832	1,969	1,959	1,869	7,973	7,629
Income from continuing operations less net income attributable to the noncontrolling interest	(310)	685	796	687	344	579	550	471	1,858	1,944	1,492
Income from discontinued operations	0	177	14	18	25	19	16	18	209	78	56		209	78	56
Net income attributable to Honeywell	(310)	862	810	705	369	598	566	489	2,067	2,022	1,548
Earnings per share continuing operations - basic:	$ (0.40)	$ 0.88	$ 1.01	$ 0.87	$ 0.44	$ 0.75	$ 0.72	$ 0.61	$ 2.38	$ 2.51	$ 1.99
Earnings per share discontinued operations - basic:	$ 0.00	$ 0.23	$ 0.02	$ 0.03	$ 0.03	$ 0.02	$ 0.02	$ 0.02	$ 0.27	$ 0.10	$ 0.07
Earnings per share: Basic	$ (0.40)	$ 1.11	$ 1.03	$ 0.90	$ 0.47	$ 0.77	$ 0.74	$ 0.63	$ 2.65	$ 2.61	$ 2.06
Earnings per share continuing operations - assuming dilution:	$ (0.40)	$ 0.87	$ 1.00	$ 0.86	$ 0.44	$ 0.74	$ 0.71	$ 0.61	$ 2.35	$ 2.49	$ 1.98
Earnings per share discontinued operations - assuming dilution:	$ 0.00	$ 0.23	$ 0.02	$ 0.02	$ 0.03	$ 0.02	$ 0.02	$ 0.02	$ 0.26	$ 0.10	$ 0.07
Earnings per share - Assuming dilution	$ (0.40)	$ 1.10	$ 1.02	$ 0.88	$ 0.47	$ 0.76	$ 0.73	$ 0.63	$ 2.61	$ 2.59	$ 2.05
Dividends paid per share	$ 0.3725	$ 0.3325	$ 0.3325	$ 0.3325	$ 0.3025	$ 0.3025	$ 0.3025	$ 0.3025	$ 1.37	$ 1.21	$ 1.21
Market Price [Abstract]
Market price per share high	$ 54.98	$ 60.44	$ 62.00	$ 59.71	$ 53.72	$ 44.46	$ 48.52	$ 45.27	$ 62.00	$ 53.72
Market price per share low	$ 42.32	$ 41.94	$ 55.53	$ 53.48	$ 43.61	$ 38.53	$ 39.03	$ 36.87	$ 41.94	$ 36.87
Unaudited Quarterly Information [Line Items]
Gain on sale, net of tax												$ 178	$ 178	$ 0	$ 0