CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares			3 Months Ended								12 Months Ended
	Jan. 11, 2017	Jan. 10, 2017	Feb. 25, 2017	Nov. 26, 2016	Aug. 27, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Feb. 25, 2017	Feb. 27, 2016	Feb. 28, 2015
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in USD per share)	$ 0.11	$ 0.10	$ 0.11	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.09	$ 0.09	$ 0.09	$ 0.41	$ 0.37	$ 0.33