Available-For-Sale Securities (Narrative) (Details) (USD $)	9 Months Ended
	Mar. 01, 2014	Mar. 02, 2013
Available-For-Sale Securities [Abstract]
Proceeds from sale of available-for-sale securities	$ 91,400,000	$ 177,400,000
Gross realized gains on sales of available-for-sale securities	7,000,000	0
Gross realized losses on sales of available-for-sale securities	2,000,000	31,000,000
Unrealized holding gains (losses) net of tax on available-for-sale securities	$ 199,000,000	$ 233,000,000