Balance Sheet and Other Details (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Prepayments and other current assets
Prepayments	$ 33.3				$ 36.0				$ 33.3	$ 36.0
Advances to contract manufacturers	13.5				14.6				13.5	14.6
Deferred income tax	3.8				3.9				3.8	3.9
Refundable income taxes	5.5				2.3				5.5	2.3
Other receivables	14.1				26.1				14.1	26.1
Assets held for sale					2.2					2.2
Other current assets	8.5				10.2				8.5	10.2
Prepayments and other current assets	78.7				95.3				78.7	95.3
Property, plant and equipment
Property, plant and equipment, gross	835.8				743.8				835.8	743.8
Less: Accumulated depreciation	(547.0)				(496.8)				(547.0)	(496.8)
Property, plant and equipment, net	288.8				247.0				288.8	247.0
Depreciation expense									72.5	68.3	69.2
Other current liabilities
Deferred compensation plan	3.9				4.2				3.9	4.2
Warranty accrual	5.3				6.0				5.3	6.0
Restructuring accrual	14.5				10.3				14.5	10.3
Holdback liabilities from acquisitions	22.5				13.1				22.5	13.1
Other	11.5				11.7				11.5	11.7
Other current liabilities	57.7				45.3				57.7	45.3
Other non-current liabilities
Pension accrual and post-employment benefits	107.3				92.0				107.3	92.0
Deferred taxes	9.3				11.0				9.3	11.0
Restructuring accrual	11.7				6.2				11.7	6.2
Financing obligation	31.4				32.4				31.4	32.4
Non-current income taxes payable	13.8				13.4				13.8	13.4
Asset retirement obligations	5.1				8.8				5.1	8.8
Long-term deferred revenue	22.7				25.8				22.7	25.8
Other	18.2				16.6				18.2	16.6
Other non-current liabilities	219.5				206.2				219.5	206.2
Interest and other income (expense), net
Interest income									3.7	2.7	3.5
Foreign exchange (losses) gains, net									(2.6)	(2.5)	0.3
Proceeds from insurance claims											9.4
Loss on repurchase of the 2026 Notes										(4.1)	(0.7)
Gain on sale of investments									0.4	0.5	1.6
Other income (expense), net									(1.0)	(0.7)	(1.3)
Interest and other income (expense), net	0.1	0.6	0.4	(0.6)	(0.4)	(0.9)	(2.4)	(0.4)	0.5	(4.1)	12.8
Significant flooding in Thailand during fiscal 2012
Proceeds from insurance claims, net of deductions											10.5
Fabrication facility in California
Property, plant and equipment
Purchase cost			14.7
Santa Rosa and Eningen site sale and leaseback transaction
Property, plant and equipment
Property, plant and equipment, net	17.7				21.8				17.7	21.8
Land
Property, plant and equipment
Property, plant and equipment, gross	20.7				14.6				20.7	14.6
Buildings and improvements
Property, plant and equipment
Property, plant and equipment, gross	64.0				34.9				64.0	34.9
Machinery and equipment
Property, plant and equipment
Property, plant and equipment, gross	495.3				453.8				495.3	453.8
Furniture, fixtures, software and office equipment
Property, plant and equipment
Property, plant and equipment, gross	145.2				132.9				145.2	132.9
Leasehold improvements
Property, plant and equipment
Property, plant and equipment, gross	78.3				92.7				78.3	92.7
Construction in progress
Property, plant and equipment
Property, plant and equipment, gross	$ 32.3				$ 14.9				$ 32.3	$ 14.9