CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Apr. 01, 2023	Apr. 02, 2022	Apr. 01, 2023	Apr. 02, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (39.3)	$ 26.0	$ (71.4)	$ 164.2
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	0.3	0.0	0.3	0.0
Net change in unrealized gain (loss) on available-for-sale securities	3.4	(6.9)	6.4	(8.9)
Net change in defined benefit obligations	0.0	(0.5)	0.0	(0.5)
Other comprehensive income (loss), net of tax	3.7	(7.4)	6.7	(9.4)
Comprehensive income (loss), net of tax	$ (35.6)	$ 18.6	$ (64.7)	$ 154.8