Earnings per share (Details) (USD $) In Thousands, except Share data	3 Months Ended
Oct. 01, 2011	Oct. 02, 2010
Numerator:
Net income	$ 139,030	$ 138,174
Denominator:
Weighted average common shares for basic earnings per share	152,270,000	152,004,000
Net effect of dilutive stock options and performance share awards	2,236,000	1,642,000
Weighted average common shares for diluted earnings per share	154,506,000	153,646,000
Basic earnings per share	$ 0.91	$ 0.91
Diluted earnings per share	$ 0.90	$ 0.90
Earnings per share (Textuals) [Abstract]
Options to purchase shares of stock	918,000	667,000

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