Summary of quarterly results (unaudited) (Details Textuals) (USD $)	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	Jun. 30, 2012	Jul. 02, 2011	Jul. 03, 2010
Summary of Quarterly Results (Textuals) [Abstract]
Pre-tax restructuring, integration and other charges	$ 20,500,000	$ 18,600,000	$ 34,500,000	$ 28,100,000	$ 7,300,000	$ 16,300,000	$ 29,100,000	$ 73,585,000	$ 77,176,000	$ 25,419,000
Restructuring, integration and other charges, after tax	15,700,000	13,700,000	23,600,000	20,200,000	5,800,000	11,900,000	20,800,000
Restructuring, integration and other charges, per share	$ 0.11	$ 0.10	$ 0.16	$ 0.13	$ 0.04	$ 0.08	$ 0.14
Reversal of restructuring integration and other charges, per diluted share					$ (0.02)
Gain on bargain purchase	4,000,000	4,500,000		31,000,000				4,317,000
Gain on bargain purchase per share on a diluted basis	$ 0.03	$ 0.03		$ 0.20				$ 0.03
Tax benefit release of tax reserves against deferred tax assets	26,300,000							30,785,000
Tax provision, tax withholdings, legal entity reorganizations and the establishment of tax reserves against deferred tax	22,300,000
Income tax adjustment, favorable audit settlements, reserve releases and the release of a valuation allowance on deferred tax assets		5,200,000	500,000
Income tax adjustment, favorable audit settlements, reserve releases and the release of a valuation allowance on deferred tax assets, per share		$ 0.04
Loss related to the write down of investments, pre tax			1,400,000			6,300,000			6,308,000
Loss related to the write down of investments, after tax			900,000			3,900,000			3,857,000
Loss related to the write down of investments, per share			$ 0.01			$ 0.02			$ 0.02
Reversal of restructuring integration and other charges after tax					(2,500,000)
Reversal of excess prior year restructuring reserves					(3,600,000)		(3,500,000)
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