Stock-Based Compensation (Recognized Stock-Based Compensation Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 26, 2012	Feb. 27, 2011	Feb. 26, 2012	Feb. 27, 2011
Stock-based compensation expense	$ 16.6	$ 17.6	$ 41.3	$ 48.7
Stock Options [Member]
Stock-based compensation expense	4.8	5.1	14.5	15.1
Restricted Stock/Restricted Stock Units [Member]
Stock-based compensation expense	0.9	3.1	3.5	7.4
Darden Stock Units [Member]
Stock-based compensation expense	6.0	2.9	11.1	11.1
Performance Stock Units [Member]
Stock-based compensation expense	4.4	5.8	9.6	12.2
Employee Stock Purchase Plan [Member]
Stock-based compensation expense	0.5	0.6	1.4	1.5
Director Compensation Program/Other [Member]
Stock-based compensation expense	$ 0	$ 0.1	$ 1.2	$ 1.4