Shareholders' equity (Share repurchase program textuals) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017	Aug. 17, 2018
Shareholders' equity
Authorized repurchase of common stock under Share Repurchase Program				$ 2,450,000
Shares repurchased during period (in shares)	12.9
Stock Repurchased And Retired During Period Price Per Share	$ 43.86
Cost of repurchase	$ 566,700
Aggregate number of shares repurchased since inception (in shares)	58.8
Aggregate cost of shares repurchased since inception	$ 2,240,000
Remaining authorized repurchase amount	$ 205,400
Cash dividends paid per common share	$ 0.80	$ 0.74	$ 0.70
Dividends paid on common stock	$ 87,158	$ 88,255	$ 88,657