Summary of quarterly results (unaudited) (Details Textuals) (USD $)	3 Months Ended							12 Months Ended
	Jul. 02, 2011	Apr. 02, 2011	Jan. 01, 2011	Oct. 02, 2010	Apr. 03, 2010	Jan. 02, 2010	Oct. 03, 2009	Jul. 02, 2011	Jul. 03, 2010	Jun. 27, 2009
Summary of Quarterly Results (Textuals) [Abstract]
Restructuring, Integration and Other Charges	$ 7,300,000	$ 16,300,000	$ 29,100,000	$ 28,100,000	$ 7,300,000		$ 18,100,000	$ 77,176,000	$ 25,419,000	$ 99,342,000
Restructuring charges								47,763,000	15,991,000	84,976,000
Restructuring, integration and other charges, after tax	5,800,000	11,900,000	20,800,000	20,200,000	5,600,000		13,200,000	56,169,000	18,789,000	65,310,000
Restructuring, integration and other charges, per share	$ 0.04	$ 0.08	$ 0.14	$ 0.13	$ 0.04		$ 0.09	$ 0.36	$ 0.12	$ 0.43
Reversal of restructuring integration and other charges per diluted share	$ (0.02)
Gain on bargain purchase				30,990,000				30,990,000
Gain on bargain purchase per share on a diluted basis				$ 0.20
Increase in Taxes related to adjustment for prior year tax return and additional tax reserves					2,300,000		3,100,000
Increase in Taxes Per Diluted Shares related To adjustment for prior year tax return and additional tax reserves					$ 0.02		$ 0.02
Gain on sale of equity method investments before tax					3,200,000	5,500,000			8,751,000	14,318,000
Gain on sale of equity method investments net of tax					1,900,000	3,400,000			5,370,000	8,727,000
Gain on sale of equity method investments per diluted share					$ 0.01	$ 0.02			$ 0.03	$ 0.06
Loss related to the write down of investments		6,308,000						6,308,000
Loss related to the write down of investments, after tax		3,900,000						3,857,000
Loss related to the write down of investments, per share		$ 0.02						$ 0.02
Pre-tax for a value-added tax exposure in Europe related to an audit					6,500,000				6,477,000
Reversal of restructuring integration and other charges after tax	(2,500,000)
Pre-tax related to acquisition-related costs					2,100,000
Reversal of excess prior year restructuring reserves	(3,600,000)		(3,500,000)		(1,300,000)			(6,076,000)	(3,241,000)	(2,514,000)
Tax benefit related to adjustment for prior year tax return and benefit related to release of tax valuation	$ 52,700,000
Tax benefit per diluted share related to release of tax valuation	$ 0.34