Shareholders' equity (Share repurchase program textuals) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016	Nov. 15, 2017
Shareholders' equity
Authorized repurchase of common stock under Share Repurchase Program				$ 1,950,000
Shares repurchased during period (in shares)	8.2
Stock Repurchased And Retired During Period Price Per Share	$ 40.11
Cost of repurchase	$ 326,900
Aggregate number of shares repurchased since inception (in shares)	45.9
Aggregate cost of shares repurchased since inception	$ 1,680,000
Remaining authorized repurchase amount	$ 272,100
Cash dividends paid per common share	$ 0.74	$ 0.70	$ 0.68
Dividends paid on common stock	$ 88,255	$ 88,657	$ 88,594