Consolidated Statements of Common Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended								12 Months Ended
	May 26, 2019	Feb. 24, 2019	Nov. 25, 2018	Aug. 26, 2018	May 27, 2018	Feb. 25, 2018	Nov. 26, 2017	Aug. 27, 2017	May 26, 2019	May 27, 2018	May 28, 2017
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock (in dollars per share)	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.2125	$ 0.85	$ 0.85	$ 0.90