Stock-Based Compensation (Recognized Stock-Based Compensation Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Nov. 23, 2014		Nov. 24, 2013		Nov. 23, 2014		Nov. 24, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 23.7		$ 18.2		$ 29.9		$ 26.9
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	11.5	[1]	7.3	[1]	14.7	[1]	11.5	[1]
Restricted Stock/ Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.7	[1]	0.4	[1]	1.1	[1]	0.8	[1]
Darden Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	3.5		6.1		4.8		7.9
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	7.1	[1]	2.3	[1]	8.0	[1]	4.1	[1]
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.3		0.4		0.7		0.9
Director Compensation Program Other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 0.6		$ 1.7		$ 0.6		$ 1.7

[1] The increase for the periods ended November 23, 2014 is primarily attributable to the workforce reduction efforts further discussed in Note 12.