Shareholders' equity (Share repurchase program textuals) (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 28, 2020	Feb. 22, 2020	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Shareholders' equity
Authorized repurchase of common stock under Share Repurchase Program	$ 2,950,000		$ 2,950,000		$ 2,950,000
Shares repurchased during period (in shares)			1.1		5.9
Cost of repurchase			$ 36,700		$ 236,400
Remaining authorized repurchase amount	469,000		$ 469,000		$ 469,000
Cash dividends paid per common share		$ 0.21	$ 0.21	$ 0.20	$ 0.63	$ 0.60
Dividends paid on common stock	$ 20,800				$ 63,235	$ 66,188