Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended						3 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 29, 2012 1% senior convertible notes	Jun. 05, 2006 1% senior convertible notes	Sep. 28, 2013 0.625% Senior Convertible Notes	Aug. 21, 2013 0.625% Senior Convertible Notes	Sep. 28, 2013 Employee stock options and ESPP	Sep. 29, 2012 Employee stock options and ESPP	Sep. 28, 2013 RSUs	Sep. 29, 2012 RSUs
Numerator:
Income (loss) from continuing operations, net of tax	$ 0.3	$ (9.8)
Income (loss) from discontinued operations, net of tax		(1.8)
Net income (loss)	$ 0.3	$ (11.6)
Denominator:
Weighted-average number of common shares outstanding-Basic	235.3	232.8
Effect of dilutive securities from stock-based benefit plans (in shares)	4.3
Weighted-average number of common shares outstanding-Diluted	239.6	232.8
Basic net income (loss) per share from:
Continuing operations(in dollars per share)	$ 0.00	$ (0.04)
Discontinued operations (in dollars per share)		$ (0.01)
Net income (loss) (in dollars per share)	$ 0.00	$ (0.05)
Diluted net income (loss) per share from:
Continuing operations (in dollars per share)	$ 0.00	$ (0.04)
Discontinued operations (in dollars per share)		$ (0.01)
Net income (loss) (in dollars per share)	$ 0.00	$ (0.05)
Anti-dilutive securities excluded from computation of earnings per share
Total potentially dilutive securities (in shares)	2.0	17.0					1.5	8.5	0.5	8.5
Convertible notes
Interest rate on senior convertible notes (as a percent)			1.00%	1.00%	0.625%	0.625%
Conversion price of debt (in dollars per share)			$ 30.30	$ 30.30	$ 18.83	$ 18.83