CONSOLIDATED STATEMENT OF SHAREOWNERS EQUITY (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Noncontrolling Interest [Member]
Balance at, beginning of period at Dec. 31, 2009			$ 3,823,000,000	$ (8,995,000,000)	$ 14,023,000,000	$ (948,000,000)	$ 110,000,000
Treasury Stock, Shares, Beginning Balance at Dec. 31, 2009				(193,400,000)
Number of shares outstanding		957,600,000
Common stock, shares	783,000,000
Reacquired stock or repurchases of common stock				0
Reacquired stock or repurchases of common stock, shares				0
Issued for employee savings and option plans			(35,000,000)	328,000,000
Issued for employee savings and option plans, shares				8,900,000
Contributed to pension plans			32,000,000	368,000,000
Contributed to pension plans, shares				9,900,000
Stock-based compensation expense			157,000,000
Other owner changes			0
Net income attributable to Honeywell	2,022,000,000				2,022,000,000
Dividends paid on common stock					(948,000,000)
Foreign exchange translation adjustment	(249,000,000)					(249,000,000)	2,000,000
Dividends paid							(10,000,000)
Pensions and other postretirement benefit adjustments	44,000,000					44,000,000
Changes in fair value of available for sale investments	90,000,000					90,000,000
Changes in fair value of effective cash flow hedges	(4,000,000)					(4,000,000)
Acquisitions							2,000,000
Interest sold (bought)							4,000,000
Net income attributable to noncontrolling interest	13,000,000						13,000,000
Balance at, end of period at Dec. 31, 2010	10,787,000,000	958,000,000	3,977,000,000	(8,299,000,000)	15,097,000,000	(1,067,000,000)	121,000,000
Treasury Stock, Shares, Ending Balance at Dec. 31, 2010				(174,600,000)
Number of shares outstanding		957,600,000
Common stock, shares	774,700,000
Reacquired stock or repurchases of common stock	(1,085,000,000)			(1,085,000,000)
Reacquired stock or repurchases of common stock, shares	(20,300,000)			(20,300,000)
Issued for employee savings and option plans			14,000,000	436,000,000
Issued for employee savings and option plans, shares				12,000,000
Contributed to pension plans			0	0
Contributed to pension plans, shares				0
Stock-based compensation expense			168,000,000
Other owner changes			(2,000,000)
Net income attributable to Honeywell	2,067,000,000				2,067,000,000
Dividends paid on common stock					(1,081,000,000)
Foreign exchange translation adjustment	(146,000,000)					(146,000,000)	(4,000,000)
Dividends paid							(23,000,000)
Pensions and other postretirement benefit adjustments	(209,000,000)					(209,000,000)
Changes in fair value of available for sale investments	12,000,000					12,000,000
Changes in fair value of effective cash flow hedges	(34,000,000)					(34,000,000)
Acquisitions							0
Interest sold (bought)							(5,000,000)
Net income attributable to noncontrolling interest	7,000,000						7,000,000
Balance at, end of period at Dec. 31, 2011	10,902,000,000	958,000,000	4,157,000,000	(8,948,000,000)	16,083,000,000	(1,444,000,000)	96,000,000
Treasury Stock, Shares, Ending Balance at Dec. 31, 2011				(182,900,000)
Balance at, beginning of period at Sep. 30, 2011
Number of shares outstanding		957,600,000
Common stock, shares	774,700,000
Net income attributable to Honeywell	(310,000,000)
Balance at, end of period at Dec. 31, 2011	10,902,000,000	958,000,000	4,157,000,000	(8,948,000,000)	16,083,000,000	(1,444,000,000)	96,000,000
Treasury Stock, Shares, Beginning Balance at Dec. 31, 2011				(182,900,000)
Number of shares outstanding		957,600,000
Common stock, shares	782,800,000
Reacquired stock or repurchases of common stock	(317,000,000)			(317,000,000)
Reacquired stock or repurchases of common stock, shares	(5,000,000)			(5,000,000)
Issued for employee savings and option plans			22,000,000	464,000,000
Issued for employee savings and option plans, shares				13,100,000
Contributed to pension plans			0	0
Contributed to pension plans, shares				0
Stock-based compensation expense			170,000,000
Other owner changes			9,000,000
Net income attributable to Honeywell	2,926,000,000				2,926,000,000
Dividends paid on common stock					(1,210,000,000)
Foreign exchange translation adjustment	282,000,000					282,000,000	0
Dividends paid							(21,000,000)
Pensions and other postretirement benefit adjustments	(198,000,000)					(198,000,000)
Changes in fair value of available for sale investments	(6,000,000)					(6,000,000)
Changes in fair value of effective cash flow hedges	27,000,000					27,000,000
Acquisitions							6,000,000
Interest sold (bought)							7,000,000
Net income attributable to noncontrolling interest	5,000,000						2,000,000
Balance at, end of period at Dec. 31, 2012	13,065,000,000	958,000,000	4,358,000,000	(8,801,000,000)	17,799,000,000	(1,339,000,000)	90,000,000
Treasury Stock, Shares, Ending Balance at Dec. 31, 2012				(174,800,000)
Balance at, beginning of period at Sep. 30, 2012
Number of shares outstanding		957,600,000
Common stock, shares	782,800,000
Net income attributable to Honeywell	251,000,000
Balance at, end of period at Dec. 31, 2012	$ 13,065,000,000	$ 958,000,000