Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Jan. 01, 2022	Jan. 02, 2021
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 858,600,000	$ 681,000,000.0	$ 763,900,000	$ 633,200,000
Other comprehensive loss before reclassification			(13,600,000)
Amounts reclassified out of accumulated other comprehensive loss			1,500,000
Net change in accumulated other comprehensive income (loss)	(3,400,000)	35,100,000	(12,100,000)	63,500,000
Balance at the end of the period	774,800,000	733,600,000	774,800,000	733,600,000
Tax impact of amortization of actuarial gains (losses)			0
Total
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(105,900,000)	(137,500,000)	(97,200,000)	(165,900,000)
Net change in accumulated other comprehensive income (loss)	(3,400,000)	35,100,000	(12,100,000)	63,500,000
Balance at the end of the period	(109,300,000)	$ (102,400,000)	(109,300,000)	$ (102,400,000)
Unrealized losses on available-for sale investments
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period			(5,100,000)
Other comprehensive loss before reclassification			100,000
Amounts reclassified out of accumulated other comprehensive loss			0
Net change in accumulated other comprehensive income (loss)			100,000
Balance at the end of the period	(5,000,000.0)		(5,000,000.0)
Foreign  currency translation adjustments, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period			(68,100,000)
Other comprehensive loss before reclassification			(13,700,000)
Amounts reclassified out of accumulated other comprehensive loss			0
Net change in accumulated other comprehensive income (loss)			(13,700,000)
Balance at the end of the period	(81,800,000)		(81,800,000)
Change in unrealized components of defined benefit obligations
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period			(24,000,000.0)
Other comprehensive loss before reclassification			0
Amounts reclassified out of accumulated other comprehensive loss			1,500,000
Net change in accumulated other comprehensive income (loss)			1,500,000
Balance at the end of the period	$ (22,500,000)		$ (22,500,000)