Document and Entity Information - USD ($) $ in Billions	12 Months Ended
	Jan. 01, 2017	Feb. 28, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	TELEDYNE TECHNOLOGIES INC
Entity Central Index Key	0001094285
Document Type	10-K
Document Period End Date	Jan. 01, 2017
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--01-01
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		35,216,739
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 3.2