Document and Entity Information - shares	6 Months Ended
	Jun. 29, 2019	Jul. 12, 2019
Document and Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 29, 2019
Document Transition Report	false
Entity File Number	1-5480
Entity Registrant Name	Textron Inc
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	05-0315468
Entity Address, Address Line One	40 Westminster Street
Entity Address, City or Town	Providence
Entity Address, State or Province	RI
Entity Address, Postal Zip Code	02903
City Area Code	401
Local Phone Number	421-2800
Title of 12(b) Security	Common stock, $0.125 par value
Trading Symbol	TXT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		230,123,580
Entity Central Index Key	0000217346
Current Fiscal Year End Date	--01-04
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false