Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 38.4	$ 43.7
Other comprehensive income (loss):
Foreign exchange translation adjustment	23.1	(49.2)
Hedge activity, net of tax	4.6	(2.3)
Pension and postretirement benefit adjustments, net of tax	3.6	4.9
Other comprehensive income (loss)	31.3	(46.6)
Comprehensive income (loss) attributable to Teledyne	$ 69.7	$ (2.9)