Cash, Cash Equivalents and Short-term Investments - Summary of Cash, Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Millions	Dec. 30, 2023	Jul. 01, 2023
Cash and cash equivalents:
Cash	$ 235.2	$ 254.3
Total cash and cash equivalents	469.3	859.0
Cash and cash equivalents	469.3	859.0
Short-term investments:
Amortized Cost	756.0	1,162.4
Gross Unrealized Gains	0.4	0.0
Gross Unrealized Losses	(1.7)	(7.8)
Fair Value	754.7	1,154.6
Certificates of deposit
Short-term investments:
Amortized Cost	13.8	16.5
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Fair Value	13.8	16.5
Commercial paper
Short-term investments:
Amortized Cost	43.8	132.9
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	(0.2)
Fair Value	43.8	132.7
Corporate debt securities
Short-term investments:
Amortized Cost	365.4	472.7
Gross Unrealized Gains	0.3	0.0
Gross Unrealized Losses	(0.8)	(3.9)
Fair Value	364.9	468.8
Municipal bonds
Short-term investments:
Amortized Cost	4.6
Gross Unrealized Gains	0.0
Gross Unrealized Losses	0.0
Fair Value	4.6
U.S. Agency securities
Short-term investments:
Amortized Cost	143.5	207.9
Gross Unrealized Gains	0.1	0.0
Gross Unrealized Losses	(0.4)	(1.7)
Fair Value	143.2	206.2
U.S. Treasury securities
Short-term investments:
Amortized Cost	184.9	332.4
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	(0.5)	(2.0)
Fair Value	184.4	330.4
Commercial paper
Cash and cash equivalents:
Cash equivalents:	5.1
Cash and cash equivalents	5.1
Money market funds
Cash and cash equivalents:
Cash equivalents:	206.6	276.1
Cash and cash equivalents	206.6	276.1
U.S. Agency securities
Cash and cash equivalents:
Cash equivalents:		4.0
Cash and cash equivalents		4.0
U.S. Treasury securities
Cash and cash equivalents:
Cash equivalents:	22.4	324.6
Cash and cash equivalents	$ 22.4	$ 324.6