COVER - shares	6 Months Ended
	Jun. 27, 2026	Jul. 25, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 27, 2026
Document Transition Report	false
Entity File Number	001-43173
Entity Registrant Name	Honeywell Aerospace Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	39-4202057
Entity Address, Address Line One	1944 E Sky Harbor Cir N
Entity Address, City or Town	Phoenix,
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85034
City Area Code	800
Local Phone Number	601-3099
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	HONA
Security Exchange Name	NASDAQ
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		316,952,725
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2026
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0002089271