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Cash, Cash Equivalents and Short-Term Investments - Schedule of cash, cash equivalents and short-term investments (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 25, 2023	Jun. 25, 2022
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	$ 37.3	$ 54.0
Corporate Debt Securities [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	32.3	43.7
Gross unrealized loss	(1.3)	(1.9)
Fair Value	31.0	41.8
Cash [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	452.2	811.9
Gross unrealized loss	0.0	0.0
Fair Value	452.2	811.9
Money Market Funds [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	395.2	12.1
Gross unrealized loss	0.0	0.0
Fair Value	395.2	12.1
Certificates of Deposit [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	50.6	2.4
Gross unrealized loss		0.0
Fair Value	50.6	2.4
Municipal Bonds [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	4.1	7.9
Gross unrealized loss	(0.1)	(0.1)
Fair Value	4.0	7.8
Cash and Cash Equivalents [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	898.0	824.0
Gross unrealized loss	0.0	0.0
Fair Value	898.0	824.0
Short-Term Investments [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	37.3	54.0
Gross unrealized loss	(1.4)	(2.0)
Fair Value	35.9	$ 52.0
Short-Term Investments [Member] | Certificate of Deposit [Member]
Cash ,Cash Equivalents & Short Term Investments
Amortized Cost	0.9
Gross unrealized loss	0.0
Fair Value	$ 0.9

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