Cash, Cash Equivalents and Short-term Investments - Summary of Cash, Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Millions	Apr. 02, 2022	Jul. 03, 2021
Cash and cash equivalents:
Cash	$ 149.4	$ 128.3
Cash and cash equivalents	1,130.3	774.3
Short-term investments:
Amortized Cost	1,445.1	1,171.8
Gross Unrealized Gains	0.1	0.3
Gross Unrealized Losses	(11.4)	(0.4)
Fair Value	1,433.8	1,171.7
Certificates of deposit
Short-term investments:
Amortized Cost	11.3	28.5
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Fair Value	11.3	28.5
Commercial paper
Short-term investments:
Amortized Cost	99.4	136.7
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	(0.1)	0.0
Fair Value	99.3	136.7
Corporate debt securities
Short-term investments:
Amortized Cost	649.7	626.0
Gross Unrealized Gains	0.0	0.3
Gross Unrealized Losses	(6.6)	(0.4)
Fair Value	643.1	625.9
Municipal bonds
Short-term investments:
Amortized Cost	1.0	1.0
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Fair Value	1.0	1.0
U.S. Agency securities
Short-term investments:
Amortized Cost	65.2	29.3
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses	(1.2)	0.0
Fair Value	64.0	29.3
U.S. Treasury securities
Short-term investments:
Amortized Cost	618.5	350.3
Gross Unrealized Gains	0.1	0.0
Gross Unrealized Losses	(3.5)	0.0
Fair Value	615.1	350.3
Commercial paper
Cash and cash equivalents:
Cash equivalents:	291.9	7.5
Money market funds
Cash and cash equivalents:
Cash equivalents:	178.4	631.5
U.S. Treasury securities
Cash and cash equivalents:
Cash equivalents:	500.4
Corporate debt securities
Cash and cash equivalents:
Cash equivalents:	$ 10.2	$ 7.0

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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