GOODWILL AND OTHER INTANGIBLE ASSETS - NET (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Future Amortization Expense - 2021	$ 310,000,000
Future Amortization Expense - 2022	273,000,000
Future Amortization Expense - 2023	250,000,000
Future Amortization Expense - 2024	241,000,000
Future Amortization Expense - 2025	203,000,000
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	7,044,000,000	$ 6,673,000,000
Accumulated Amortization	(4,445,000,000)	(4,159,000,000)
Net Carrying Amount	2,599,000,000	2,514,000,000
Goodwill [Line Items]
Balance at beginning of period,	16,058,000,000
Acquisitions/Divestitures	1,971,000,000
Currency Translation Adjustment	(273,000,000)
Balance at end of period,	17,756,000,000	16,058,000,000
Finite And Indefinite Other Intangible Assets [Abstract]
Trademarks with indefinite lives	1,014,000,000	1,046,000,000
Gross carrying amount	8,058,000,000	7,719,000,000
Accumulated Amortization	(4,445,000,000)	(4,159,000,000)
Net carrying amount	3,613,000,000	3,560,000,000
Goodwill and Intangible Assets Paragraph Details [Abstract]
Amortization of Intangible Assets	465,000,000	358,000,000	$ 415,000,000
Corporate and All Other [Member]
Goodwill [Line Items]
Balance at beginning of period,	0
Acquisitions/Divestitures	943,000,000
Currency Translation Adjustment	(2,000,000)
Balance at end of period,	941,000,000	0
Aerospace [Member]
Goodwill [Line Items]
Balance at beginning of period,	2,378,000,000
Acquisitions/Divestitures	21,000,000
Currency Translation Adjustment	0
Balance at end of period,	2,399,000,000	2,378,000,000
Honeywell Building Technologies [Member]
Goodwill [Line Items]
Balance at beginning of period,	3,385,000,000
Acquisitions/Divestitures	20,000,000
Currency Translation Adjustment	(88,000,000)
Balance at end of period,	3,317,000,000	3,385,000,000
Performance Materials And Technologies [Member]
Goodwill [Line Items]
Balance at beginning of period,	5,255,000,000
Acquisitions/Divestitures	1,019,000,000
Currency Translation Adjustment	(136,000,000)
Balance at end of period,	6,138,000,000	5,255,000,000
Safety And Productivity Solutions [Member]
Goodwill [Line Items]
Balance at beginning of period,	5,040,000,000
Acquisitions/Divestitures	(32,000,000)
Currency Translation Adjustment	(47,000,000)
Balance at end of period,	4,961,000,000	5,040,000,000
Patents and Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,345,000,000	2,159,000,000
Accumulated Amortization	(1,678,000,000)	(1,595,000,000)
Net Carrying Amount	667,000,000	564,000,000
Finite And Indefinite Other Intangible Assets [Abstract]
Accumulated Amortization	(1,678,000,000)	(1,595,000,000)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	4,045,000,000	3,889,000,000
Accumulated Amortization	(2,235,000,000)	(2,050,000,000)
Net Carrying Amount	1,810,000,000	1,839,000,000
Finite And Indefinite Other Intangible Assets [Abstract]
Accumulated Amortization	(2,235,000,000)	(2,050,000,000)
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	356,000,000	327,000,000
Accumulated Amortization	(261,000,000)	(247,000,000)
Net Carrying Amount	95,000,000	80,000,000
Finite And Indefinite Other Intangible Assets [Abstract]
Accumulated Amortization	(261,000,000)	(247,000,000)
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	298,000,000	298,000,000
Accumulated Amortization	(271,000,000)	(267,000,000)
Net Carrying Amount	27,000,000	31,000,000
Finite And Indefinite Other Intangible Assets [Abstract]
Accumulated Amortization	$ (271,000,000)	$ (267,000,000)