Cash, Cash Equivalents and Short-term Investments - Summary of Unrealized Losses (Details) - USD ($) $ in Millions	Apr. 01, 2023	Jul. 02, 2022
Unrealized Losses
Fair Value, More Than 12 Months	$ 286.7	$ 57.4
Unrealized Losses, More Than 12 Months	(3.6)	(0.9)
Fair Value, Less Than 12 Months	526.9	1,060.8
Unrealized Losses, Less Than 12 Months	(1.9)	(12.5)
Gross Unrealized Losses	(5.5)	(13.4)
U.S. Agency securities
Unrealized Losses
Fair Value, More Than 12 Months	42.2	0.0
Unrealized Losses, More Than 12 Months	(0.8)	0.0
Fair Value, Less Than 12 Months	82.9	73.7
Unrealized Losses, Less Than 12 Months	(0.2)	(1.4)
Gross Unrealized Losses	(1.0)	(1.4)
Certificates of deposit
Unrealized Losses
Fair Value, More Than 12 Months	0.0	0.0
Unrealized Losses, More Than 12 Months	0.0	0.0
Fair Value, Less Than 12 Months	12.7	16.2
Unrealized Losses, Less Than 12 Months	0.0	0.0
Gross Unrealized Losses	0.0	0.0
Commercial paper
Unrealized Losses
Fair Value, More Than 12 Months	0.0	0.0
Unrealized Losses, More Than 12 Months	0.0	0.0
Fair Value, Less Than 12 Months	112.5	130.7
Unrealized Losses, Less Than 12 Months	(0.2)	(0.4)
Gross Unrealized Losses	(0.2)	(0.4)
Corporate debt securities
Unrealized Losses
Fair Value, More Than 12 Months	153.7	57.4
Unrealized Losses, More Than 12 Months	(1.8)	(0.9)
Fair Value, Less Than 12 Months	192.8	473.2
Unrealized Losses, Less Than 12 Months	(1.2)	(6.5)
Gross Unrealized Losses	(3.0)	(7.4)
Municipal bonds
Unrealized Losses
Fair Value, More Than 12 Months		0.0
Unrealized Losses, More Than 12 Months		0.0
Fair Value, Less Than 12 Months		1.0
Unrealized Losses, Less Than 12 Months		0.0
Gross Unrealized Losses		0.0
Foreign government bonds
Unrealized Losses
Fair Value, More Than 12 Months	0.0
Unrealized Losses, More Than 12 Months	0.0
Fair Value, Less Than 12 Months	1.4
Unrealized Losses, Less Than 12 Months	0.0
Gross Unrealized Losses	0.0
U.S. government bonds
Unrealized Losses
Fair Value, More Than 12 Months	90.8	0.0
Unrealized Losses, More Than 12 Months	(1.0)	0.0
Fair Value, Less Than 12 Months	124.6	366.0
Unrealized Losses, Less Than 12 Months	(0.3)	(4.2)
Gross Unrealized Losses	$ (1.3)	$ (4.2)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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