Stock-Based Compensation (Recognized Stock-Based Compensation Expense) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Nov. 24, 2013		Nov. 25, 2012		Nov. 24, 2013		Nov. 25, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 20.2		$ 14.3		$ 31.3		$ 28.7
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	7.8	[1]	4.7	[1]	12.5	[1]	9.5	[1]
Restricted Stock/ Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.4		0.8		0.9		1.4
Darden Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	7.6		5.7		11.0		10.5
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2.3	[1]	1.5	[1]	4.3	[1]	5.2	[1]
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.4		0.5		0.9		0.9
Director compensation program/other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 1.7		$ 1.1		$ 1.7		$ 1.2

[1] The increase for the three months ended November 24, 2013 is primarily attributable to the workforce reduction efforts further discussed in Note 11.