Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Apr. 02, 2022	Jan. 01, 2022	Oct. 02, 2021	Apr. 03, 2021	Dec. 26, 2020	Sep. 26, 2020	Apr. 02, 2022	Apr. 03, 2021
Numerator:
Net income (loss)	$ 26.0	$ 56.7	$ 81.5	$ 225.5	$ 83.2	$ 67.1	$ 164.2	$ 375.8
Net Income - Basic	26.0			225.5			164.2	375.8
Net income - Diluted	$ 26.0			$ 225.5			$ 164.2	$ 375.8
Denominator:
Weighted average common shares outstanding - basic (in shares)	71.0			75.8			72.0	75.6
Effect of dilutive securities from stock-based benefit plans (in shares)	0.7			0.8			0.6	0.8
Shares issuable assuming conversion of the 2024 Notes (in shares)	2.8			2.6			2.5	2.2
Weighted average common shares outstanding - diluted (in shares)	74.5			79.2			75.1	78.6
Net income per share:
Basic (in usd per share)	$ 0.37			$ 2.97			$ 2.28	$ 4.97
Diluted (in usd per share)	$ 0.35			$ 2.85			$ 2.19	$ 4.78