Cash, Cash Equivalents and Short-term Investments - Summary of Unrealized Losses (Details) - USD ($) $ in Millions	Apr. 02, 2022	Jul. 03, 2021
Cash and Cash Equivalents
Fair Value	$ 1,535.2	$ 617.5
Unrealized Losses
Unrealized Losses, Less than 12 months	(11.4)	(0.4)
U.S. Agency securities
Cash and Cash Equivalents
Fair Value	64.0	28.3
Unrealized Losses
Unrealized Losses, Less than 12 months	(1.2)	0.0
Certificates of deposit
Cash and Cash Equivalents
Fair Value	11.3	6.0
Unrealized Losses
Unrealized Losses, Less than 12 months	0.0	0.0
Commercial paper
Cash and Cash Equivalents
Fair Value	253.3	43.0
Unrealized Losses
Unrealized Losses, Less than 12 months	(0.1)	0.0
Corporate debt securities
Cash and Cash Equivalents
Fair Value	639.3	432.3
Unrealized Losses
Unrealized Losses, Less than 12 months	(6.6)	(0.4)
Municipal bonds
Cash and Cash Equivalents
Fair Value	1.0	1.0
Unrealized Losses
Unrealized Losses, Less than 12 months	0.0	0.0
U.S. government bonds
Cash and Cash Equivalents
Fair Value	566.3	106.9
Unrealized Losses
Unrealized Losses, Less than 12 months	$ (3.5)	$ 0.0