Document and Entity Information - shares	3 Months Ended
	Dec. 25, 2015	Jan. 21, 2016
Document and Entity Information
Entity Registrant Name	TYCO INTERNATIONAL PLC
Entity Central Index Key	0000833444
Document Type	10-Q
Document Period End Date	Dec. 25, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-25
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		424,618,498
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1