Stock-Based Compensation (Recognized Stock-Based Compensation Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 27, 2011	Nov. 28, 2010	Nov. 27, 2011	Nov. 28, 2010
Stock-based compensation expense	$ 13.2	$ 17.9	$ 24.7	$ 31.1
Stock Options [Member]
Stock-based compensation expense	4.7	5.1	9.7	10.0
Restricted Stock/Restricted Stock Units [Member]
Stock-based compensation expense	1.3	2.2	2.6	4.3
Darden Stock Units [Member]
Stock-based compensation expense	3.0	5.8	5.1	8.2
Performance Stock Units [Member]
Stock-based compensation expense	2.6	3.3	5.2	6.4
Employee Stock Purchase Plan [Member]
Stock-based compensation expense	0.5	0.5	0.9	0.9
Director Compensation Program/Other [Member]
Stock-based compensation expense	$ 1.1	$ 1.0	$ 1.2	$ 1.3