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Stock-Based Compensation (Details) $ / shares in Units, $ in Millions			12 Months Ended
	Dec. 11, 2014 shares	Nov. 14, 2012 amendment shares	Jul. 02, 2016 USD ($) executive $ / shares shares	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Aug. 01, 2015 USD ($)
Stock-Based Compensation
Stock options and Full Value Awards issued and outstanding (in shares) | shares			12,500,000
Shares of common stock available for grant | shares			19,400,000
Impact on the entity's results of operations of recording stock-based compensation by function
Stock-based compensation cost (in dollars)			$ 42.4	$ 47.5	$ 44.7
Stock-based compensation capitalized to inventory (in dollars)			$ 0.8
Total incremental stock-based compensation expense						$ 13.6
Modification
Impact on the entity's results of operations of recording stock-based compensation by function
Extended exercise period for fully exercisable options resulted from modification			2 years
Number of executives impacted by plan modification (in executive) | executive			6
Incremental stock-based compensation cost			$ 6.3
Cost of sales
Impact on the entity's results of operations of recording stock-based compensation by function
Stock-based compensation cost (in dollars)			4.8	4.2	4.3
Research and development
Impact on the entity's results of operations of recording stock-based compensation by function
Stock-based compensation cost (in dollars)			8.4	8.1	8.4
Selling, general and administrative
Impact on the entity's results of operations of recording stock-based compensation by function
Stock-based compensation cost (in dollars)			$ 29.2	$ 35.2	$ 32.0
Options | Minimum
Stock-Based Compensation
Vesting period			3 years
Stock awards expiration period			5 years
Options | Maximum
Stock-Based Compensation
Vesting period			4 years
Stock awards expiration period			10 years
Full Value Awards - Total
Stock-Based Compensation
Exercise price (in dollars per share) | $ / shares			$ 0
Full Value Awards - Total | Minimum
Stock-Based Compensation
Vesting period			1 year
Full Value Awards - Total | Maximum
Stock-Based Compensation
Vesting period			4 years
2003 Plan
Stock-Based Compensation
Number of additional amendments approved by shareholders | amendment		2
Common stock added to the pool of shares reserved for issuance under the plan (in shares) | shares	9,000,000	10,000,000
Additional term of plan after the date of approval of amendment		10 years
1998 Purchase Plan
Stock-Based Compensation
Shares of common stock available for grant | shares			5,500,000
Discount rate provided under purchase plan (as a percent)			5.00%
Look-back period			6 months

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Number of additional shares authorized for issuance under an established share-based compensation plan.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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