Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Apr. 02, 2022	Apr. 03, 2021	Apr. 02, 2022	Apr. 03, 2021	May 29, 2018	Mar. 03, 2017
Numerator:
Net income (loss)	$ 19.2	$ 17.2	$ (1.0)	$ 64.2
Weighted-average shares outstanding:
Basic (in shares)	229.2	228.7	232.1	228.8
Shares issuable assuming conversion of convertible notes (in shares)	4.9	8.5	0.0	2.9
Effect of dilutive securities from stock-based benefit plans (in shares)	2.7	3.0	0.0	2.7
Diluted (in shares)	236.8	240.2	232.1	234.4
Net income (loss) per share:
Basic (in dollars per share)	$ 0.08	$ 0.08	$ 0	$ 0.28
Dilutive (in dollars per share)	$ 0.08	$ 0.07	$ 0	$ 0.27
Convertible notes
Total potentially dilutive securities (in shares)	0.3	0.3	6.5	0.4
2024 Notes | Convertible Notes
Convertible notes
Stated interest rate	1.00%		1.00%			1.00%
Conversion price of debt (in dollars per share)			$ 13.22
2023 Notes | Convertible Notes
Convertible notes
Stated interest rate	1.75%		1.75%		1.75%
Conversion price of debt (in dollars per share)			$ 13.94
RSUs
Convertible notes
Total potentially dilutive securities (in shares)	0.3	0.3	0.6	0.4
Convertible Debt Securities
Convertible notes
Total potentially dilutive securities (in shares)	0.0	0.0	5.9	0.0