Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2017	Jan. 26, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Document type	10-K
Document period end date	Dec. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	FY
Amendment flag	false
Entity registrant name	Honeywell International Inc
Entity central index key	0000773840
Entity current reporting status	Yes
Entity voluntary filers	No
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity well known seasoned issuer	Yes
Entity common stock shares outstanding		752,002,033
Entity public float			$ 101.4
Entity tax identification number	222640650