Income taxes - Textuals (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 03, 2021
Income taxes
Loss before income taxes, Domestic	$ 250,800	$ 197,100	$ (89,400)
Income before income taxes, Foreign	$ 732,100	$ 636,300	$ 262,300
Effective tax rate	21.60%	16.90%	(11.70%)
Deferred tax assets	$ 242,069	$ 211,158
Increase in valuation allowance due to current year activity in the United States	4,500
Decrease in Valuation Allowance Due To Changing Foreign Exchange Rates	4,700
Income Taxes Receivable, Net Operating Loss, CARES Act	56,100
Net operating loss carry forward	1,090,000
Operating loss carry forward, subject to expiration	6,800
Deferred tax assets operating loss carry forwards expiring in next three years and after	245,700
Operating loss carry forward, not subject to expiration	839,500
Unrecognized tax benefits including interest and penalties	130,500
Accrued interest expense and penalties	27,700	$ 25,300
Tax contingencies settled	32,200
Expected cash payment for settlement	$ 1,000