Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022
Numerator:
Net income (loss) - Basic	$ (546.5)	$ (131.6)	$ 198.9
Net income (loss) - Diluted	$ (546.5)	$ (131.6)	$ 198.9
Denominator:
Weighted average common shares outstanding - basic (in shares)	67.3	68.3	71.2
Effect of dilutive securities from stock-based benefit plans (in shares)	0.0	0.0	0.6
Shares issuable assuming conversion of the convertible notes (in shares)	0.0	0.0	2.4
Weighted average common shares outstanding - diluted (in shares)	67.3	68.3	74.2
Net income (loss) per share:
Basic (in dollars per share)	$ (8.12)	$ (1.93)	$ 2.79
Diluted (in dollars per share)	$ (8.12)	$ (1.93)	$ 2.68