Fair Value of Financial Instruments (Tables)

12 Months Ended

Jun. 28, 2020

Fair Value Disclosures [Abstract]

Schedule of Financial Instruments Carried at Fair Value

Financial instruments carried at fair value were as follows:

	June 28, 2020								June 30, 2019
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	199.9	$	—	$	—	$	199.9	$	95.0	$	—	$	—	$	95.0
Corporate bonds	—		—		—		—		—		15.0		—		15.0
U.S. agency securities	—		19.6		—		19.6		—		18.8		—		18.8
U.S. treasury securities	19.0		—		—		19.0		2.5		—		—		2.5
Certificates of deposit	—		54.3		—		54.3		—		105.8		—		105.8
Commercial paper	—		11.1		—		11.1		—		1.0		—		1.0
Total cash equivalents	218.9		85.0		—		303.9		97.5		140.6		—		238.1
Short-term investments:
Municipal bonds	—		132.0		—		132.0		—		78.5		—		78.5
Corporate bonds	—		480.1		—		480.1		—		257.0		—		257.0
U.S. agency securities	—		29.1		—		29.1		—		25.6		—		25.6
U.S. treasury securities	52.9		—		—		52.9		92.5		—		—		92.5
Certificates of deposit	—		95.3		—		95.3		—		72.6		—		72.6
Commercial paper	—		11.0		—		11.0		—		7.8		—		7.8
Variable rate demand note	—		2.5		—		2.5		—		16.9		—		16.9
Total short-term investments	52.9		750.0		—		802.9		92.5		458.4		—		550.9
Other long-term investments:
Common stock of non-U.S. corporations	—		55.9		—		55.9		—		39.5		—		39.5
Total assets	$271.8		$890.9		$—		$1,162.7		$190.0		$638.5		$—		$828.5