Consolidated Statements of Changes In Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock And Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Unearned Compensation
Beginning balance at May. 31, 2015	$ 2,333.5	$ 1,405.9	$ 1,026.0	$ (7.8)	$ (86.6)	$ (4.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	129.6		129.6
Other comprehensive income	21.6				21.6
Dividends declared	(140.6)		(140.6)
Stock option exercises (1.1, 1.5 shares)	59.7	59.7
Stock-based compensation	8.5	8.5
ESOP note receivable repayments	0.4					0.4
Income tax benefits credited to equity	12.0	12.0
Repurchases of common stock (3.5, 0.0 shares)	(0.4)	(0.1)	(0.3)
Issuance of stock under Employee Stock Purchase Plan and other plans (0.1, 0.1) shares)	2.3	2.3
Separation of Four Corners Property Trust	(436.8)		(436.8)
Ending balance at Nov. 29, 2015	1,989.8	1,488.3	577.9	(7.8)	(65.0)	(3.6)
Beginning balance at Aug. 30, 2015					(85.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	43.2
Other comprehensive income	20.2
Ending balance at Nov. 29, 2015	1,989.8	1,488.3	577.9	(7.8)	(65.0)	(3.6)
Beginning balance at May. 29, 2016	1,952.0	1,502.6	547.5	(7.8)	(87.0)	(3.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	189.7		189.7
Other comprehensive income	3.7				3.7
Dividends declared	(139.5)		(139.5)
Stock option exercises (1.1, 1.5 shares)	43.4	43.4
Stock-based compensation	7.4	7.4
ESOP note receivable repayments	0.5					0.5
Income tax benefits credited to equity	8.3	8.3
Repurchases of common stock (3.5, 0.0 shares)	(214.7)	(41.4)	(173.3)
Issuance of stock under Employee Stock Purchase Plan and other plans (0.1, 0.1) shares)	2.6	2.6
Ending balance at Nov. 27, 2016	1,853.4	1,522.9	424.4	(7.8)	(83.3)	(2.8)
Beginning balance at Aug. 28, 2016					(89.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	79.5
Other comprehensive income	6.1
Ending balance at Nov. 27, 2016	$ 1,853.4	$ 1,522.9	$ 424.4	$ (7.8)	$ (83.3)	$ (2.8)