Condensed Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 26, 2014	Sep. 27, 2013
Statement of Income and Comprehensive Income [Abstract]
Net income	$ 125.1	$ 125.7
Other comprehensive income (loss):
Foreign currency translation gain (loss)	(28.6)	24.0
Net unrealized loss on hedging derivatives, net of income taxes	(0.8)	(0.3)
Amortization of loss on treasury lock, net of income taxes	0.2	0.1
Net unrecogonized gain on post-retirement obligations, net of income taxes	8.5	0.6
Other comprehensive income (loss), net of income taxes	(20.7)	24.4
Total comprehensive income	104.4	150.1
Comprehensive loss attributable to noncontrolling interests	0	0.1
Total comprehensive income attributable to Harris Corporation	$ 104.4	$ 150.2