Accumulated Other Comprehensive Income (Details) - USD ($)	12 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 1,355,800,000	$ 1,875,000,000	$ 1,972,800,000
Other comprehensive income (loss)	5,200,000	3,700,000	(7,800,000)
Balance at the end of the period	957,300,000	1,355,800,000	1,875,000,000
Income (loss) on defined benefit obligations, tax	400,000	0	1,500,000
Unrealized gain (loss) on available-for-sale securities, tax	1,700,000	800,000	2,800,000
Total
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	4,100,000	400,000	8,200,000
Other comprehensive income (loss)	5,200,000	3,700,000	(7,800,000)
Balance at the end of the period	9,300,000	4,100,000	400,000
Foreign currency translation adjustments, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	10,400,000	9,700,000	9,700,000
Other comprehensive income (loss)	(600,000)	700,000	0
Balance at the end of the period	9,800,000	10,400,000	9,700,000
Defined benefit obligations, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(400,000)	1,000,000.0	(1,400,000)
Other comprehensive income (loss)	1,100,000	(1,400,000)	2,400,000
Balance at the end of the period	700,000	(400,000)	1,000,000.0
Unrealized gain (loss) on available-for-sale securities, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(5,900,000)	(10,300,000)	(100,000)
Other comprehensive income (loss)	4,700,000	4,400,000	(10,200,000)
Balance at the end of the period	$ (1,200,000)	$ (5,900,000)	$ (10,300,000)