Stock-Based Compensation (Recognized Stock-Based Compensation Expense) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 29, 2015	Nov. 23, 2014	Nov. 29, 2015		Nov. 23, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 7.1	$ 23.7	$ 17.3		$ 29.9
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2.4	11.5	4.9	[1]	14.7	[1]
Restricted Stock/ Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.5	0.7	0.9	[1]	1.1	[1]
Darden Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2.6	3.5	6.8		4.8
Cash-Settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.2	7.1	2.0		8.0
Equity-Settled Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.8	0.0	1.1		0.0
Employee stock purchase plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	0.3	0.3	0.6		0.7
Director compensation program/other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 0.3	$ 0.6	$ 1.0		$ 0.6

[1] Three Months Ended Six Months Ended(in millions) November 29, 2015 November 23, 2014 November 29, 2015 November 23, 2014Stock options $2.4 $11.5 $4.9 $14.7Restricted stock/restricted stock units 0.5 0.7 0.9 1.1Darden stock units 2.6 3.5 6.8 4.8Cash-settled performance stock units 0.2 7.1 2.0 8.0Equity-settled performance stock units 0.8 — 1.1 —Employee stock purchase plan 0.3 0.3 0.6 0.7Director compensation program/other 0.3 0.6 1.0 0.6Total stock-based compensation expense $7.1 $23.7 $17.3 $29.9