CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 969,000,000	$ 825,000,000
Other Comprehensive Income (Loss), Net Of Tax [Abstract]
Foreign exchange translation adjustment	(381,000,000)	189,000,000
Prior service cost recognized during the year	3,000,000	2,000,000
Actuarial losses recognized during year	6,000,000	7,000,000
Settlements and curtailments	0	2,000,000
Pension and other postretirement benefit adjustments	9,000,000	11,000,000
Unrealized gains for the period	54,000,000	43,000,000
Changes in fair value of available for sale investments	54,000,000	43,000,000
Effective portion of cash flow hedges recognized in other comprehensive income	0	25,000,000
Less: Reclassification adjustment for gains (losses) included in net income	(1,000,000)	6,000,000
Changes in fair value of effective cash flow hedges	1,000,000	19,000,000
Other comprehensive income (loss), net of tax	(317,000,000)	262,000,000
Comprehensive income	652,000,000	1,087,000,000
Less: Comprehensive income attributable to noncontrolling interest	3,000,000	4,000,000
Comprehensive income attributable to Honeywell	$ 649,000,000	$ 1,083,000,000