Consolidated Statements Of Changes In Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock And Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Unearned Compensation
Beginning balance at May. 25, 2014	$ 2,156.9	$ 1,302.2	$ 995.8	$ (7.8)	$ (128.1)	$ (5.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	503.2		503.2
Other comprehensive income	25.6				25.6
Dividends declared	(72.4)		(72.4)
Stock option exercises (2016: 0.2 shares and 2015: 1.5 shares)	7.7	7.7
Stock-based compensation	4.6	4.6
ESOP note receivable repayments	0.3					0.3
Income tax benefits credited to equity	1.0	1.0
Repurchases of common stock (0.0 shares)	(0.6)	(0.1)	(0.5)
Issuance of stock under Employee Stock Purchase Plan and other plans (0.0 shares in 2016 and 2015)	1.6	1.6
Accelerated share repurchase program	(500.0)	(500.0)
Ending balance at Aug. 24, 2014	2,127.9	817.0	1,426.1	(7.8)	(102.5)	(4.9)
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	86.4		86.4
Other comprehensive income	1.4				1.4
Dividends declared	(70.1)		(70.1)
Stock option exercises (2016: 0.2 shares and 2015: 1.5 shares)	55.7	55.7
Stock-based compensation	4.1	4.1
ESOP note receivable repayments	0.3					0.3
Income tax benefits credited to equity	11.6	11.6
Issuance of stock under Employee Stock Purchase Plan and other plans (0.0 shares in 2016 and 2015)	1.2	1.2
Ending balance at Aug. 30, 2015	$ 2,424.1	$ 1,478.5	$ 1,042.3	$ (7.8)	$ (85.2)	$ (3.7)