CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,329,000,000	$ 3,962,000,000	$ 2,931,000,000
Other Comprehensive Income (Loss), Net Of Tax [Abstract]
Foreign exchange translation adjustment	(1,044,000,000)	(52,000,000)	282,000,000
Actuarial gains (losses)	(1,411,000,000)	2,064,000,000	(839,000,000)
Prior service credit	73,000,000	99,000,000	9,000,000
Prior service cost (credit) recognized during the year	(2,000,000)	5,000,000	6,000,000
Actuarial losses recognized during year	202,000,000	61,000,000	649,000,000
Transition obligation recognized during year	1,000,000	2,000,000	2,000,000
Settlements and curtailments	0	(26,000,000)	(2,000,000)
Foreign exchange translation and other	54,000,000	(2,000,000)	(23,000,000)
Pensions and other postretirement benefit adjustments	(1,083,000,000)	2,203,000,000	(198,000,000)
Unrealized gains (losses) for the period	15,000,000	140,000,000	(6,000,000)
Less: reclassification adjustment for gains included in net income	185,000,000	127,000,000	0
Changes in fair value of available for sale investments	(170,000,000)	13,000,000	(6,000,000)
Effective portion of cash flow hedges recognized in other comprehensive income	20,000,000	(30,000,000)	14,000,000
Less: Reclassification adjustment for losses included in net income	0	(23,000,000)	(13,000,000)
Changes in fair value of effective cash flow hedges	20,000,000	(7,000,000)	27,000,000
Other comprehensive income (loss), net of tax	(2,277,000,000)	2,157,000,000	105,000,000
Comprehensive income	2,052,000,000	6,119,000,000	3,036,000,000
Less: Comprehensive income attributable to the noncontrolling interest	87,000,000	36,000,000	5,000,000
Comprehensive income attributable to Honeywell	$ 1,965,000,000	$ 6,083,000,000	$ 3,031,000,000