Income taxes (Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017
Current:
Federal	$ (18,611)	$ 255,810	$ (45,351)
State and Local	8,523	(3,174)	4,209
Foreign	78,988	104,156	106,441
Total current taxes	68,900	356,792	65,299
Deferred:
Federal	17,725	(70,172)	(30,025)
State and Local	580	(10,551)	(3,934)
Foreign	(25,048)	11,897	15,713
Total deferred taxes	(6,743)	(68,826)	(18,246)
Income tax expense	$ 62,157	$ 287,966	$ 47,053