PENSION AND OTHER POSTRETIREMENT BENEFITS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2010 Retirees [Member]	Dec. 31, 2011 Union Actives [Member]	Dec. 31, 2010 Union Actives [Member]
Pension and Other Post Retirements Disclosure Paragraph Details [Abstract]
United States Pension Plans Percent of Projected Benefit Obligation	76.00%
Foreign Pension Plans Percent of Projected Benefit Obligation	24.00%
Pension And Other Postretirement Benefits Paragraph [Line Items]
Defined Benefit Plan, Description of Plan Amendment		amended its U.S. retiree medical plan to no longer offer certain post-age-65 retirees Honeywell group coverage and facilitate their purchase of an individual plan in the Medicare marketplace	in connection with new collective bargaining agreements reached with several of its union groups, Honeywell amended its U.S. retiree medical plans eliminating the subsidy for those union employees	in connection with a new collective bargaining agreement reached with one of its union groups, Honeywell amended its U.S. retiree medical plan eliminating the subsidy for those union employees who retire after February 1, 2013
Defined Benefit Plan, Effect of Plan Amendment on Accumulated Benefit Obligation		$ (137)		$ (39)
Defined benefit Plan, Effect of Plan Amendment on Net Periodic Benefit Cost			$ 167	$ 37