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, 2022			$ 8,564,000,000	$ (34,443,000,000)	$ 45,093,000,000	$ (3,475,000,000)	$ 622,000,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2022				(290.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(11.3)
Reacquired stock or repurchases of common stock	$ (100,000,000)			$ (2,187,000,000)
Issued for employee savings and option plans (in shares)				3.0
Issued for employee savings and option plans			193,000,000	$ 123,000,000
Stock compensation expense			148,000,000
Impact of Quantinuum contribution			0
Net income attributable to Honeywell	4,395,000,000				4,395,000,000
Dividends on common stock					(2,062,000,000)
Net income attributable to noncontrolling interest	(29,000,000)						29,000,000
Foreign exchange translation adjustment	(76,000,000)					(70,000,000)	(6,000,000)
Pension and other postretirement benefit adjustments	(38,000,000)					(38,000,000)
Changes in fair value of available for sale investments						3,000,000
Changes in fair value of cash flow hedges	29,000,000					29,000,000
Dividends paid							(101,000,000)
Contributions from noncontrolling interest holders							0
Treasury stock, ending balance (in shares) at Sep. 30, 2023				(298.3)
Ending balance at Sep. 30, 2023	$ 17,775,000,000	$ 958,000,000	8,905,000,000	$ (36,507,000,000)	47,426,000,000	(3,551,000,000)	544,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 3.09
Beginning balance at Jun. 30, 2023			8,866,000,000	$ (35,510,000,000)	46,596,000,000	(3,611,000,000)	595,000,000
Treasury stock, beginning balance (in shares) at Jun. 30, 2023				(293.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(5.3)
Reacquired stock or repurchases of common stock	$ (100,000,000)			$ (1,011,000,000)
Issued for employee savings and option plans (in shares)				0.6
Issued for employee savings and option plans			0	$ 14,000,000
Stock compensation expense			39,000,000
Impact of Quantinuum contribution			0
Net income attributable to Honeywell	1,514,000,000				1,514,000,000
Dividends on common stock					(684,000,000)
Net income attributable to noncontrolling interest	(1,000,000)						1,000,000
Foreign exchange translation adjustment	59,000,000					62,000,000	(3,000,000)
Pension and other postretirement benefit adjustments	(14,000,000)					(14,000,000)
Changes in fair value of available for sale investments						0
Changes in fair value of cash flow hedges	12,000,000					12,000,000
Dividends paid							(49,000,000)
Contributions from noncontrolling interest holders							0
Treasury stock, ending balance (in shares) at Sep. 30, 2023				(298.3)
Ending balance at Sep. 30, 2023	$ 17,775,000,000	$ 958,000,000	8,905,000,000	$ (36,507,000,000)	47,426,000,000	(3,551,000,000)	544,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 1.03
Common stock, par value (in shares)	659.3	957.6
Total shareowners' equity (in shares)	659.3	957.6
Beginning balance at Dec. 31, 2023	$ 16,434,000,000		9,062,000,000	$ (38,008,000,000)	47,979,000,000	(4,135,000,000)	578,000,000
Treasury stock, beginning balance (in shares) at Dec. 31, 2023				(305.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				(6.1)
Reacquired stock or repurchases of common stock	0			$ (1,200,000,000)
Issued for employee savings and option plans (in shares)				4.5
Issued for employee savings and option plans			303,000,000	$ 219,000,000
Stock compensation expense			153,000,000
Impact of Quantinuum contribution			36,000,000
Net income attributable to Honeywell	4,420,000,000				4,420,000,000
Dividends on common stock					(2,112,000,000)
Net income attributable to noncontrolling interest	(30,000,000)						30,000,000
Foreign exchange translation adjustment	(229,000,000)					(226,000,000)	(3,000,000)
Pension and other postretirement benefit adjustments	(16,000,000)					(16,000,000)
Changes in fair value of available for sale investments						(1,000,000)
Changes in fair value of cash flow hedges	(26,000,000)					(26,000,000)
Dividends paid							(66,000,000)
Contributions from noncontrolling interest holders							29,000,000
Treasury stock, ending balance (in shares) at Sep. 30, 2024				(307.4)
Ending balance at Sep. 30, 2024	$ 17,974,000,000	$ 958,000,000	9,554,000,000	$ (38,989,000,000)	50,287,000,000	(4,404,000,000)	568,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 3.24
Beginning balance at Jun. 30, 2024			9,495,000,000	$ (39,007,000,000)	49,576,000,000	(4,075,000,000)	563,000,000
Treasury stock, beginning balance (in shares) at Jun. 30, 2024				(307.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reacquired stock or repurchases of common stock (in shares)				0.0
Reacquired stock or repurchases of common stock				$ 0
Issued for employee savings and option plans (in shares)				0.5
Issued for employee savings and option plans			14,000,000	$ 18,000,000
Stock compensation expense			45,000,000
Impact of Quantinuum contribution			0
Net income attributable to Honeywell	$ 1,413,000,000				1,413,000,000
Dividends on common stock					(702,000,000)
Net income attributable to noncontrolling interest	(2,000,000)						2,000,000
Foreign exchange translation adjustment	(288,000,000)					(309,000,000)	21,000,000
Pension and other postretirement benefit adjustments	(6,000,000)					(6,000,000)
Changes in fair value of available for sale investments						0
Changes in fair value of cash flow hedges	(14,000,000)					(14,000,000)
Dividends paid							(18,000,000)
Contributions from noncontrolling interest holders							0
Treasury stock, ending balance (in shares) at Sep. 30, 2024				(307.4)
Ending balance at Sep. 30, 2024	$ 17,974,000,000	$ 958,000,000	$ 9,554,000,000	$ (38,989,000,000)	$ 50,287,000,000	$ (4,404,000,000)	$ 568,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 1.08
Common stock, par value (in shares)	650.2	957.6
Total shareowners' equity (in shares)	650.2	957.6