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Discontinued Operations (Details 2) - Spinoff - Lumentum - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Discontinued Operations
Net revenues	$ 66.5	$ 835.2	$ 816.3
Cost of revenues	49.8	569.1	550.7
Amortization of acquired technologies	0.6	7.5	9.1
Gross profit	16.1	258.6	256.5
Research and development	12.5	139.9	134.2
Selling, general and administrative	24.7	87.5	65.9
Restructuring charges	0.1	7.7	2.5
Total operating expenses	37.3	235.1	202.6
Income (loss) from operations	(21.2)	23.5	53.9
Interest and other income (expense), net	0.0	(1.1)	1.0
Income (loss) before income taxes	(21.2)	22.4	54.9
(Benefit from) provision for income taxes	27.8	(20.9)	(1.9)
Net income (loss) from discontinued operations	$ (49.0)	$ 43.3	$ 56.8

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