Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Common Stock And Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Unearned Compensation
Beginning balance at May. 26, 2019	$ 2,392.6	$ 1,685.0	$ 806.6	$ (98.2)	$ (0.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	427.6		427.6
Other comprehensive income	97.8			97.8
Dividends declared	(324.9)		(324.9)
Stock option exercises	11.5	11.5
Stock-based compensation	24.3	24.3
Repurchases of common stock	(300.3)	(35.8)	(264.5)
Issuance of stock under Employee Stock Purchase Plan and other plans	6.2	6.2
Other	6.4	1.8	3.8		0.8
Ending balance at Feb. 23, 2020	2,341.2	1,693.0	648.6	(0.4)	0.0
Beginning balance at Nov. 24, 2019	2,273.7	1,690.0	584.5	(0.5)	(0.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	232.3		232.3
Other comprehensive income	0.1			0.1
Dividends declared	(107.4)		(107.4)
Stock option exercises	0.7	0.7
Stock-based compensation	8.7	8.7
Repurchases of common stock	(69.4)	(8.6)	(60.8)
Issuance of stock under Employee Stock Purchase Plan and other plans	2.2	2.2
Other	0.3	0.0	0.0		0.3
Ending balance at Feb. 23, 2020	2,341.2	1,693.0	648.6	(0.4)	0.0
Beginning balance at May. 31, 2020	2,331.2	2,205.3	143.5	(17.6)	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	260.8		260.8
Other comprehensive income	18.3			18.3
Dividends declared	(88.1)		(88.1)
Stock option exercises	27.1	27.1
Stock-based compensation	32.2	32.2
Repurchases of common stock	(7.2)	(1.5)	(5.7)
Issuance of stock under Employee Stock Purchase Plan and other plans	7.1	7.1
Other	(5.9)	1.6	(7.5)
Ending balance at Feb. 28, 2021	2,575.5	2,271.8	303.0	0.7	0.0
Beginning balance at Nov. 29, 2020	2,455.1	2,239.0	223.2	(7.1)	0.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	128.7		128.7
Other comprehensive income	7.8			7.8
Dividends declared	(48.6)		(48.6)
Stock option exercises	21.5	21.5
Stock-based compensation	9.2	9.2
Repurchases of common stock	(0.4)	0.0	(0.4)
Issuance of stock under Employee Stock Purchase Plan and other plans	2.3	2.3
Other	(0.1)	(0.2)	0.1
Ending balance at Feb. 28, 2021	$ 2,575.5	$ 2,271.8	$ 303.0	$ 0.7	$ 0.0