CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,847,000,000	$ 4,329,000,000	$ 3,962,000,000
Other Comprehensive Income (Loss), Net Of Tax [Abstract]
Foreign exchange translation adjustment	(1,152,000,000)	(1,044,000,000)	(52,000,000)
Actuarial gains (losses)	(464,000,000)	(1,411,000,000)	2,064,000,000
Prior service credit	446,000,000	73,000,000	99,000,000
Prior service cost (credit) recognized during year	(13,000,000)	(2,000,000)	5,000,000
Actuarial losses recognized during year	72,000,000	202,000,000	61,000,000
Transition obligation recognized during year	0	1,000,000	2,000,000
Settlements and curtailments	2,000,000	0	(26,000,000)
Foreign exchange translation and other	41,000,000	54,000,000	(2,000,000)
Pensions and other postretirement benefit adjustments	84,000,000	(1,083,000,000)	2,203,000,000
Unrealized gains for the period	0	15,000,000	140,000,000
Less: reclassification adjustment for gains included in net income	0	185,000,000	127,000,000
Changes in fair value of available for sale investments	0	(170,000,000)	13,000,000
Effective portion of cash flow hedges recognized in other comprehensive income	91,000,000	20,000,000	(30,000,000)
Less: Reclassification adjustment for gains (losses) included in net income	99,000,000	0	(23,000,000)
Changes in fair value of effective cash flow hedges	(8,000,000)	20,000,000	(7,000,000)
Other comprehensive income (loss), net of tax	(1,076,000,000)	(2,277,000,000)	2,157,000,000
Comprehensive income	3,771,000,000	2,052,000,000	6,119,000,000
Less: Comprehensive income attributable to the noncontrolling interest	73,000,000	87,000,000	36,000,000
Comprehensive income attributable to Honeywell	$ 3,698,000,000	$ 1,965,000,000	$ 6,083,000,000