Stock-Based Compensation Plans (Summary Of Stock Option Activity) (Details) $ / shares in Units, $ in Thousands		12 Months Ended
		May 30, 2020 $ / shares shares	May 25, 2019 USD ($) $ / shares shares
Stock-Based Compensation Plans [Abstract]
Options outstanding, Beginning balance, Share-Based Awards Available for Grant		1,595,000
Granted, at fair market value, Share-Based Awards Available for Grant		(1,318,000)
Restricted stock, Share-Based Awards Available for Grant	[1]	(71,000)
Forfeited, Share-Based Awards Available for Grant	[2]	639,000
Expired, Share-Based Awards Available for Grant		608,000
Options outstanding, Ending balance, Share-Based Awards Available for Grant		1,453,000	1,595,000
Beginning balance, Number of Shares Under Option		6,029,000
Granted, at fair market value, Number of Shares Under Option		1,318,000
Exercised, Number of Shares Under Option		(376,000)
Forfeited, Number of Shares Under Option	[2]	(608,000)
Expired, Number of Shares Under Option		(608,000)
Ending balance, Number of Shares Under Option		5,755,000	6,029,000
Exercisable, Number of Shares Under Option		3,392,000
Vested and expected to vest, Number of Shares Under Option	[3]	5,566,000
Beginning balance, Weighted Average Exercise Price (per share) | $ / shares		$ 15.95
Granted, at fair market value, Weighted Average Exercise Price (per share) | $ / shares		17.37
Exercised, Weighted Average Exercise Price (per share) | $ / shares		13.63
Forfeited, Weighted Average Exercise Price (per share) | $ / shares	[2]	17.41
Expired, Weighted Average Exercise Price (per share) | $ / shares		17.90
Ending balance, Weighted Average Exercise Price (per share) | $ / shares		16.07	$ 15.95
Exercisable, Weighted Average Exercise Price (per share) | $ / shares		15.10
Vested and expected to vest, Weighted Average Exercise Price (per share) | $ / shares	[3]	$ 16.00
Weighted Average Remaining Contractual Life (in years)		6 years 2 months 5 days	6 years 22 days
Exercisable, Weighted Average Remaining Contractual Life (in years)		4 years 5 months 12 days
Vested and expected to vest, Weighted Average Remaining Contractual Life (in years)	[3]	6 years 15 days
Ending balance, Aggregate Intrinsic Value | $			$ 5,482
Number of share based awards required for each share granted		2.5
Forfeiture assumption, shares		2,391,052	2,481,959

[1] Amounts represent restricted shares granted. Share-based awards available for grant are reduced by 2.5 shares for each share awarded as stock grants from the 2014 Plan.

[2] Amounts represent both stock options and restricted share awards forfeited. For stock options, represent one share for each stock option forfeited. For restricted share awards, represents 2.5 shares for each restricted share award forfeited.

[3] The expected to vest options are the result of applying the pre-vesting forfeiture rate assumptions to options not yet vested of 2,391,052 and 2,481,959 as of May 30, 2020 and May 25, 2019, respectively.