Shareholders' equity (Share repurchase program textuals) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015	Feb. 15, 2017
Shareholders' equity
Authorized repurchase of common stock under Share Repurchase Program				$ 1,750,000
Shares repurchased during period (in shares)	6.4
Stock Repurchased And Retired During Period Price Per Share	$ 43.41
Cost of repurchase	$ 275,900
Aggregate number of shares repurchased since inception (in shares)	37.7
Aggregate cost of shares repurchased since inception	$ 1,350,000
Remaining authorized repurchase amount	$ 399,100
Cash dividends paid per common share	$ 0.70	$ 0.68	$ 0.64
Dividends paid on common stock	$ 88,657	$ 88,594	$ 87,330