Condensed Consolidated Statement of Comprehensive Income (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Statement of Income and Comprehensive Income [Abstract]
Net income	$ 141.2	$ 94.3	$ 403.0	$ 53.1
Other comprehensive income (loss):
Foreign currency translation	(3.7)	(55.5)	14.8	(21.8)
Net unrealized gain (loss) on hedging derivatives, net of income taxes	(0.1)	0.3	(0.5)	0.1
Net unrealized loss on securities available-for-sale, net of income taxes	0	0	0	(2.7)
Amortization of loss on treasury lock, net of income taxes	0.1	0.1	0.4	0.4
Net unregonized post-retirement obligations, net of income taxes	10.5	1.7	11.8	3.3
Other comprehensive income (loss), net of income taxes	6.8	(53.4)	26.5	(20.7)
Total comprehensive income	148.0	40.9	429.5	32.4
Comprehensive loss attributable to noncontrolling interests	0.2	0.5	0.4	4.4
Total comprehensive income attributable to Harris Corporation	$ 148.2	$ 41.4	$ 429.9	$ 36.8