CONSOLIDATED STATEMENT OF SHAREOWNERS' EQUITY (unaudited) - USD ($) shares in Millions, $ 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, 2021			$ 8,141	$ (30,462)	$ 42,827	$ (2,895)	$ 673
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)				(5.5)
Reacquired stock or repurchases of common stock				$ (1,018)
Issued for employee savings and option plans (in shares)				1.4
Issued for employee savings and option plans			116	$ 60
Stock-based compensation expense			69
Net income attributable to Honeywell	$ 1,134				1,134
Dividends on common stock					(673)
Net income attributable to noncontrolling interest	0						0
Foreign exchange translation adjustment	126					126	0
Pension and other postretirement benefit adjustments	(17)					(17)
Changes in fair value of available for sale investments						(6)
Changes in fair value of cash flow hedges	5					5
Dividends paid							(1)
Contributions from noncontrolling interest holders							14
Treasury stock, ending balance (in shares) at Mar. 31, 2022				(276.9)
Ending balance at Mar. 31, 2022	$ 19,051	$ 958	8,326	$ (31,420)	43,288	(2,787)	686
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)	680.7	957.6
Total shareowners' equity (in shares)	680.7	957.6
Beginning balance at Dec. 31, 2022	$ 17,319		8,564	$ (34,443)	45,093	(3,475)	622
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)				(3.5)
Reacquired stock or repurchases of common stock				$ (699)
Issued for employee savings and option plans (in shares)				1.6
Issued for employee savings and option plans			151	$ 70
Stock-based compensation expense			59
Net income attributable to Honeywell	1,394				1,394
Dividends on common stock					(690)
Net income attributable to noncontrolling interest	(14)						14
Foreign exchange translation adjustment	(58)					(59)	1
Pension and other postretirement benefit adjustments	(12)					(12)
Changes in fair value of available for sale investments						(6)
Changes in fair value of cash flow hedges	14					14
Dividends paid							(41)
Contributions from noncontrolling interest holders							0
Treasury stock, ending balance (in shares) at Mar. 31, 2023				(291.9)
Ending balance at Mar. 31, 2023	$ 17,515	$ 958	$ 8,774	$ (35,072)	$ 45,797	$ (3,538)	$ 596
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends per share of common stock (in dollars per share)	$ 1.030
Common stock, par value (in shares)	665.7	957.6
Total shareowners' equity (in shares)	665.7	957.6