Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Quarterly consolidated statements of operations
Net revenue	$ 224.1	$ 220.4	$ 232.1	$ 229.7	$ 219.8	$ 212.4	$ 226.4	$ 215.3	$ 906.3	$ 873.9	$ 926.9
Gross profit	136.1	131.3	141.8	140.5	131.1	127.0	133.1	128.9	549.7	520.1	527.8
Net (loss) income from continuing operations, net of tax	(64.5)	28.8	1.0	(15.7)	(32.1)	(35.8)	(37.7)	(25.8)	(50.4)	(131.4)	(74.6)
(Loss) income from discontinued operations, net of tax	(3.4)	5.0	3.0	(53.4)	(8.0)	22.6	12.6	16.1	(48.8)	43.3	56.8
Net loss	$ (67.9)	$ 33.8	$ 4.0	$ (69.1)	$ (40.1)	$ (13.2)	$ (25.1)	$ (9.7)	$ (99.2)	$ (88.1)	$ (17.8)
Net (loss) income per share from - basic:
Continuing operations (usd per share)	$ (0.28)	$ 0.13	$ 0.01	$ (0.07)	$ (0.14)	$ (0.16)	$ (0.16)	$ (0.11)
Discontinued operations (usd per share)	(0.01)	0.02	0.01	(0.22)	(0.03)	0.10	0.05	0.07
Net income (loss) (usd per share)	(0.29)	0.15	0.02	(0.29)	(0.17)	(0.06)	(0.11)	(0.04)
Net (loss) income per share from - diluted:
Continuing operations (usd per share)	(0.28)	0.12	0.01	(0.07)	(0.14)	(0.16)	(0.16)	(0.11)
Discontinued operations (usd per share)	(0.01)	0.02	0.01	(0.22)	(0.03)	0.10	0.05	0.07
Net income (loss) (usd per share)	$ (0.29)	$ 0.14	$ 0.02	$ (0.29)	$ (0.17)	$ (0.06)	$ (0.11)	$ (0.04)
Shares used in per share calculation:
Basic (in shares)	232.7	232.0	234.9	236.0	234.6	233.2	232.1	230.8	234.0	232.7	234.2
Diluted net income (loss) per share from: (in shares)	232.7	234.6	237.1	236.0	234.6	233.2	232.1	230.8	234.0	232.7	234.2