Financial Instruments Available-for-sale investments (Tables)

12 Months Ended

Jun. 30, 2018

Schedule of Available-for-sale Securities [Line Items]

Available-for-sale Securities [Table Text Block]

Fair values were as follows:



	June 30, 2018									June 24, 2017
	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Estimated Fair Value		Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Estimated Fair Value
	(in thousands)
Available-for-sale investments
Certificates of deposit	$	52,429	$	—	$	(1	)	$	52,428	$	—	$	—	$	—		$	—
Commercial paper	64,354		—		—			64,354		—		—		—			—
Corporate debt securities	369,734		39		(2,008		)	367,765		—		—		—			—
U.S. Treasury securities	600,068		10		(1,710		)	598,368		499,952		—		(1,234		)	498,718
Total available-for-sale investments	$	1,086,585	$	49	$	(3,719	)	$	1,082,915	$	499,952	$	—	$	(1,234	)	$	498,718

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details