Condensed Consolidated Statement of Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 28, 2014	Mar. 29, 2013	Mar. 28, 2014	Mar. 29, 2013
Condensed Consolidated Statement of Income [Abstract]
Revenue from product sales and services	$ 1,267.5	$ 1,203.7	$ 3,682.6	$ 3,752.1
Cost of product sales and services	(841.0)	(803.5)	(2,410.9)	(2,497.2)
Engineering, selling and administrative expenses	(203.2)	(202.5)	(615.7)	(613.8)
Non-operating income (loss)	0.2	(0.5)	4.7	(1.6)
Interest income	0.7	0.8	2.0	1.8
Interest expense	(23.2)	(27.6)	(70.6)	(83.1)
Income from continuing operations before income taxes	201.0	170.4	592.1	558.2
Income taxes	(63.9)	(45.8)	(190.5)	(166.8)
Income from continuing operations	137.1	124.6	401.6	391.4
Discontinued operations, net of income taxes	4.1	(30.3)	1.4	(338.3)
Net income	141.2	94.3	403.0	53.1
Noncontrolling interests, net of income taxes	0.2	0.5	0.4	4.4
Net income attributable to Harris Corporation	141.4	94.8	403.4	57.5
Amounts attributable to Harris Corporation common shareholders
Income from continuing operations	137.3	125.1	402.0	395.8
Discontinued operations, net of income taxes	4.1	(30.3)	1.4	(338.3)
Net income attributable to Harris Corporation	$ 141.4	$ 94.8	$ 403.4	$ 57.5
Basic net income per common share attributable to Harris Corporation common shareholders
Continuing operations	$ 1.28	$ 1.12	$ 3.75	$ 3.52
Discontinued operations	$ 0.04	$ (0.27)	$ 0.02	$ (3.01)
Total basic net income per common share	$ 1.32	$ 0.85	$ 3.77	$ 0.51
Diluted net income per common share attributable to Harris Corporation common shareholders
Continuing operations	$ 1.27	$ 1.12	$ 3.72	$ 3.50
Discontinued operations	$ 0.04	$ (0.27)	$ 0.01	$ (2.99)
Total diluted net income per common share	$ 1.31	$ 0.85	$ 3.73	$ 0.51
Cash dividends paid per common share	$ 0.42	$ 0.37	$ 1.26	$ 1.11
Basic weighted average common shares outstanding	106.2	110.6	106.3	111.5
Diluted weighted average common shares outstanding	107.4	111.2	107.4	112.1