CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Jan. 01, 2011	Oct. 02, 2010	Jun. 30, 2012	Jul. 02, 2011	Jul. 03, 2010
Net revenue	$ 439.3	$ 409.2	$ 412.8	$ 420.8	$ 471.8	$ 454.0	$ 473.5	$ 405.2	$ 1,682.1	$ 1,804.5	$ 1,363.9
Cost of sales	241.8	225.4	222.4	223.9	253.3	240.0	245.6	217.8	913.5	956.7	766.2
Amortization of acquired technologies	14.8	14.1	15.4	14.3	14.4	14.3	14.1	14.1	58.6	56.9	50.6
Gross profit	182.7	169.7	175.0	182.6	204.1	199.7	213.8	173.3	710.0	790.9	547.1
Operating expenses:
Research and development	64.3	62.5	59.4	59.8	62.7	60.6	60.2	56.4	246.0	239.9	174.9
Selling, general and administrative	107.4	105.1	105.8	110.7	109.7	110.7	109.5	107.2	429.0	437.1	382.9
Amortization of other intangibles	7.3	7.5	7.2	6.9	7.6	8.0	8.0	8.6	28.9	32.2	27.8
Loss (gain) on disposal and impairment of long-lived assets	21.8	0.2	0.2	0.5	1.3	0.2			22.7	1.5	(2.0)
Restructuring and related charges	5.0	2.0	4.0	1.5	4.4	7.6	2.5	0.3	12.5	14.8	17.7
Total operating expenses	205.8	177.3	176.6	179.4	185.7	187.1	180.2	172.5	739.1	725.5	601.3
(Loss) income from operations	(23.1)	(7.6)	(1.6)	3.2	18.4	12.6	33.6	0.8	(29.1)	65.4	(54.2)
Interest and other income (expense), net	10.3	0.1	0.9	(0.1)	0.4		1.5	0.3	11.2	2.2	8.2
Interest expense	(7.2)	(6.9)	(6.6)	(6.6)	(6.5)	(6.2)	(6.4)	(6.3)	(27.3)	(25.4)	(24.3)
Gain on sale of investments	0.3	0.1	0.1	1.1		0.1	0.1	3.2	1.6	3.4	13.1
(Loss) income from continuing operations before income taxes	(19.7)	(14.3)	(7.2)	(2.4)	12.3	6.5	28.8	(2.0)	(43.6)	45.6	(57.2)
Provision for (benefit from) income taxes	2.5	3.1	3.0	3.4	3.0	(32.1)	5.2	(2.1)	12.0	(26.0)	2.5
(Loss) income from continuing operations, net of tax									(55.6)	71.6	(59.7)
Loss from discontinued operations, net of tax											(2.1)
Net (loss) income	$ (22.2)	$ (17.4)	$ (10.2)	$ (5.8)	$ 9.3	$ 38.6	$ 23.6	$ 0.1	$ (55.6)	$ 71.6	$ (61.8)
Basic net (loss) income per share from:
Continuing operations (in dollars per share)									$ (0.24)	$ 0.32	$ (0.27)
Discontinued operations (in dollars per share)											$ (0.01)
Net (loss) income (in dollars per share)	$ (0.10)	$ (0.08)	$ (0.04)	$ (0.03)	$ 0.04	$ 0.17	$ 0.11		$ (0.24)	$ 0.32	$ (0.28)
Diluted net (loss) income per share from:
Continuing operations (in dollars per share)									$ (0.24)	$ 0.31	$ (0.27)
Discontinued operations (in dollars per share)											$ (0.01)
Net (loss) income (in dollars per share)	$ (0.10)	$ (0.08)	$ (0.04)	$ (0.03)	$ 0.04	$ 0.16	$ 0.10		$ (0.24)	$ 0.31	$ (0.28)
Shares used in per share calculation:
Basic (in shares)	231.7	230.6	229.4	228.4	227.2	225.6	222.9	221.8	230.0	224.4	218.9
Diluted (in shares)	231.7	230.6	229.4	228.4	235.7	235.4	229.1	227.5	230.0	232.6	218.9