Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2016 USD ($)	Feb. 22, 2015 USD ($)	Feb. 28, 2016 USD ($) segment	Feb. 22, 2015 USD ($)	May. 31, 2015 USD ($)
Segment Reporting [Abstract]
Number of Reportable Segments | segment			4
Segment Reporting Information [Line Items]
Sales	$ 1,847.5	$ 1,730.9	$ 5,143.3	$ 4,885.7
Restaurant and marketing expenses	1,466.2	1,393.7	4,184.7	4,072.4
Segment profit	381.3	337.2	958.6	813.3
Depreciation and amortization	67.0	79.6	223.4	238.4
Impairments and disposal of assets, net	2.1	(0.8)	(3.9)	(47.1)
Segments assets	4,501.9	5,991.6	4,501.9	5,991.6	$ 5,994.7
Capital expenditures			172.8	230.1
Operating Segments | Olive Garden
Segment Reporting Information [Line Items]
Sales	1,019.8	957.1	2,856.8	2,752.3
Restaurant and marketing expenses	799.7	755.7	2,287.6	2,262.1
Segment profit	220.1	201.4	569.2	490.2
Depreciation and amortization	27.1	37.8	96.9	112.6
Impairments and disposal of assets, net	(1.9)	2.1	(1.9)	(13.6)
Segments assets	951.0	1,672.1	951.0	1,672.1
Capital expenditures			67.2	94.6
Operating Segments | LongHorn Steakhouse
Segment Reporting Information [Line Items]
Sales	425.5	403.8	1,174.4	1,106.5
Restaurant and marketing expenses	340.5	337.9	977.5	944.5
Segment profit	85.0	65.9	196.9	162.0
Depreciation and amortization	15.7	17.9	52.5	53.1
Impairments and disposal of assets, net	(0.2)	0.8	1.5	0.0
Segments assets	980.2	1,275.5	980.2	1,275.5
Capital expenditures			40.7	55.0
Operating Segments | Fine Dining
Segment Reporting Information [Line Items]
Sales	146.0	138.5	382.5	362.9
Restaurant and marketing expenses	112.1	107.6	308.3	295.5
Segment profit	33.9	30.9	74.2	67.4
Depreciation and amortization	6.7	6.6	20.3	19.6
Impairments and disposal of assets, net	0.0	0.0	(0.7)	0.0
Segments assets	852.7	866.5	852.7	866.5
Capital expenditures			12.7	17.2
Operating Segments | Other Business
Segment Reporting Information [Line Items]
Sales	256.2	231.5	729.6	664.0
Restaurant and marketing expenses	213.9	192.5	611.3	570.3
Segment profit	42.3	39.0	118.3	93.7
Depreciation and amortization	12.8	11.8	37.8	35.1
Impairments and disposal of assets, net	0.0	0.0	(6.6)	(21.0)
Segments assets	996.8	1,061.8	996.8	1,061.8
Capital expenditures			49.4	59.9
Corporate
Segment Reporting Information [Line Items]
Sales	0.0	0.0	0.0	0.0
Restaurant and marketing expenses	0.0	0.0	0.0	0.0
Segment profit	0.0	0.0	0.0	0.0
Depreciation and amortization	4.7	5.5	15.9	18.0
Impairments and disposal of assets, net	0.0	(3.7)	0.0	(12.5)
Segments assets	$ 721.2	$ 1,115.7	721.2	1,115.7
Capital expenditures			$ 2.8	$ 3.4