CONSOLIDATED STATEMENT OF SHAREOWNERS' EQUITY (unaudited) - USD ($) shares in Millions	Total	Common stock, par value	Additional paid-in capital	Treasury stock	Retained earnings	Accumulated other comprehensive income (loss)	Noncontrolling interest
Beginning balance at Dec. 31, 2020			$ 7,292,000,000	$ (27,229,000,000)	$ 39,905,000,000	$ (3,377,000,000)	$ 241,000,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2020				(260.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(11.5)
Reacquired stock or repurchases of common stock				$ (2,499,000,000)
Issued for employee savings and option plans (in shares)				3.1
Issued for employee savings and option plans			148,000,000	$ 114,000,000
Stock-based compensation expense			172,000,000
Net income attributable to Honeywell	$ 4,114,000,000				4,114,000,000
Dividends on common stock					(1,940,000,000)
Acquisitions, divestitures, and other							5,000,000
Net income (loss) attributable to noncontrolling interest	(54,000,000)						54,000,000
Foreign exchange translation adjustment	250,000,000					250,000,000
Pension and other postretirement benefit adjustments	(65,000,000)					(65,000,000)
Changes in fair value of available for sale investments						(3,000,000)
Changes in fair value of cash flow hedges	2,000,000					2,000,000
Dividends paid							(32,000,000)
Contributions from noncontrolling interest holders							4,000,000
Treasury stock, ending balance (in shares) at Sep. 30, 2021				(269.2)
Ending balance at Sep. 30, 2021	$ 18,114,000,000	$ 958,000,000	7,612,000,000	$ (29,614,000,000)	42,079,000,000	(3,193,000,000)	272,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 2.790
Beginning balance at Jun. 30, 2021			7,566,000,000	$ (28,978,000,000)	41,467,000,000	(3,075,000,000)	264,000,000
Treasury stock, beginning balance (in shares) at Jun. 30, 2021				(267.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(2.9)
Reacquired stock or repurchases of common stock				$ (650,000,000)
Issued for employee savings and option plans (in shares)				0.9
Issued for employee savings and option plans			(10,000,000)	$ 14,000,000
Stock-based compensation expense			56,000,000
Net income attributable to Honeywell	$ 1,257,000,000				1,257,000,000
Dividends on common stock					(645,000,000)
Net income (loss) attributable to noncontrolling interest	(16,000,000)						16,000,000
Foreign exchange translation adjustment	(93,000,000)					(92,000,000)	(1,000,000)
Pension and other postretirement benefit adjustments	(22,000,000)					(22,000,000)
Changes in fair value of cash flow hedges	(4,000,000)					(4,000,000)
Dividends paid							(7,000,000)
Treasury stock, ending balance (in shares) at Sep. 30, 2021				(269.2)
Ending balance at Sep. 30, 2021	$ 18,114,000,000	$ 958,000,000	7,612,000,000	$ (29,614,000,000)	42,079,000,000	(3,193,000,000)	272,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 0.930
Common stock, par value (in shares)	957.6	957.6
Total shareowners' equity (in shares)	688.4
Beginning balance at Dec. 31, 2021	$ 19,242,000,000		8,141,000,000	$ (30,462,000,000)	42,827,000,000	(2,895,000,000)	673,000,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2021				(272.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(15.1)
Reacquired stock or repurchases of common stock				$ (2,827,000,000)
Issued for employee savings and option plans (in shares)				2.6
Issued for employee savings and option plans			146,000,000	$ 107,000,000
Stock-based compensation expense			173,000,000
Net income attributable to Honeywell	3,947,000,000				3,947,000,000
Dividends on common stock					(2,007,000,000)
Net income (loss) attributable to noncontrolling interest	1,000,000						(1,000,000)
Foreign exchange translation adjustment	(399,000,000)					(378,000,000)	(21,000,000)
Pension and other postretirement benefit adjustments	(44,000,000)					(44,000,000)
Changes in fair value of available for sale investments						(7,000,000)
Changes in fair value of cash flow hedges	28,000,000					28,000,000
Dividends paid							(42,000,000)
Contributions from noncontrolling interest holders							14,000,000
Treasury stock, ending balance (in shares) at Sep. 30, 2022				(285.3)
Ending balance at Sep. 30, 2022	$ 18,330,000,000	$ 958,000,000	8,460,000,000	$ (33,182,000,000)	44,767,000,000	(3,296,000,000)	623,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 2.940
Beginning balance at Jun. 30, 2022			8,397,000,000	$ (32,814,000,000)	43,883,000,000	(2,883,000,000)	649,000,000
Treasury stock, beginning balance (in shares) at Jun. 30, 2022				(283.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(2.1)
Reacquired stock or repurchases of common stock				$ (390,000,000)
Issued for employee savings and option plans (in shares)				0.7
Issued for employee savings and option plans			12,000,000	$ 22,000,000
Stock-based compensation expense			51,000,000
Net income attributable to Honeywell	$ 1,552,000,000				1,552,000,000
Dividends on common stock					(668,000,000)
Net income (loss) attributable to noncontrolling interest	3,000,000						(3,000,000)
Foreign exchange translation adjustment	(423,000,000)					(409,000,000)	(14,000,000)
Pension and other postretirement benefit adjustments	(10,000,000)					(10,000,000)
Changes in fair value of available for sale investments						2,000,000
Changes in fair value of cash flow hedges	4,000,000					4,000,000
Dividends paid							(9,000,000)
Treasury stock, ending balance (in shares) at Sep. 30, 2022				(285.3)
Ending balance at Sep. 30, 2022	$ 18,330,000,000	$ 958,000,000	$ 8,460,000,000	$ (33,182,000,000)	$ 44,767,000,000	$ (3,296,000,000)	$ 623,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 0.980
Common stock, par value (in shares)	957.6	957.6
Total shareowners' equity (in shares)	672.3