CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Statement of Income and Comprehensive Income [Abstract]
Net income	$ 946,000,000	$ 863,000,000	$ 2,676,000,000	$ 2,381,000,000
Other comprehensive income (loss), net of tax
Foreign exchange translation adjustment	312,000,000	(440,000,000)	81,000,000	67,000,000
Actuarial gains (losses)	6,000,000	(15,000,000)	11,000,000	10,000,000
Prior service credit	0	3,000,000	0	13,000,000
Prior service credit (cost) recognized during the year	2,000,000	3,000,000	5,000,000	(1,000,000)
Actuarial losses recognized during year	0	6,000,000	10,000,000	16,000,000
Settlements and curtailments	0	(74,000,000)	(2,000,000)	(109,000,000)
Foreign exchange translation and other	0	0	1,000,000	1,000,000
Pension and other postretirement benefit adjustments	8,000,000	(77,000,000)	25,000,000	(70,000,000)
Unrealized gains (losses) for the period	(15,000,000)	(36,000,000)	23,000,000	(28,000,000)
Changes in fair value of available for sale investments	(15,000,000)	(36,000,000)	23,000,000	(28,000,000)
Effective portion of cash flow hedges recognized in other comprehensive income	31,000,000	(32,000,000)	8,000,000	(17,000,000)
Less: Reclassification adjustment for gains (losses) included in net income	(7,000,000)	1,000,000	(13,000,000)	7,000,000
Changes in fair value of effective cash flow hedges	38,000,000	(33,000,000)	21,000,000	(24,000,000)
Other comprehensive income (loss), net of tax	343,000,000	(586,000,000)	150,000,000	(55,000,000)
Comprehensive income	1,289,000,000	277,000,000	2,826,000,000	2,326,000,000
Less: Comprehensive income (loss) attributable to non controlling interest	(2,000,000)	0	1,000,000	3,000,000
Comprehensive income attributable to Honeywell	$ 1,291,000,000	$ 277,000,000	$ 2,825,000,000	$ 2,323,000,000