Consolidated Statements Of Changes In Stockholders' Equity (USD $) In Millions, unless otherwise specified	Total	Common Stock And Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Unearned Compensation
Balances at May. 27, 2012	$ 1,842.0	$ 2,518.8	$ 3,172.8	$ (3,695.8)	$ (146.6)	$ (7.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	144.4		144.4
Other comprehensive income (loss)	(1.1)				(1.1)
Dividends declared	(129.3)		(129.3)
Stock option exercises (2013: 0.8 shares and 2012: 1.2 shares)	33.8	32.4		1.4
Stock-based compensation	13.1	13.1
ESOP note receivable repayments	0.9					0.9
Income tax benefits credited to equity	8.3	8.3
Repurchases of common stock (1.0 shares)	52.3			52.3
Issuance of stock under Employee Stock Purchase Plan and other plans (0.1 shares)	3.6	3.1		0.5
Treasury shares retirement (159.3 shares)	0	(1,411.4)	(2,326.1)	3,737.5	0	0
Balances at Nov. 25, 2012	1,863.4	1,164.3	861.8	(8.7)	(147.7)	(6.3)
Balances at May. 26, 2013	2,059.5	1,207.6	998.9	(8.1)	(132.8)	(6.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	90.0		90.0
Other comprehensive income (loss)	4.9				4.9
Dividends declared	(143.8)		(143.8)
Stock option exercises (2013: 0.8 shares and 2012: 1.2 shares)	23.6	23.3		0.3
Stock-based compensation	16.0	16.0
ESOP note receivable repayments	0.6					0.6
Income tax benefits credited to equity	5.3	5.3
Repurchases of common stock (0.0 shares)	0.5	0.1	0.4
Issuance of stock under Employee Stock Purchase Plan and other plans (0.1 shares)	3.6	3.6
Balances at Nov. 24, 2013	$ 2,059.2	$ 1,255.7	$ 944.7	$ (7.8)	$ (127.9)	$ (5.5)