Segment Information (Schedule of Segment Reporting) (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 26, 2018	Aug. 27, 2017
Segment Reporting Information [Line Items]
Sales	$ 2,061.4	$ 1,936.1
Restaurant and marketing expenses	1,687.0	1,588.3
Segment profit	374.4	347.8
Depreciation and amortization	80.7	76.1
Impairments and disposal of assets, net	0.1	(0.8)
Purchases of land, buildings and equipment	106.4	95.7
Operating Segments | Olive Garden
Segment Reporting Information [Line Items]
Sales	1,052.0	989.9
Restaurant and marketing expenses	833.8	790.8
Segment profit	218.2	199.1
Depreciation and amortization	33.6	32.1
Impairments and disposal of assets, net	0.0	0.0
Purchases of land, buildings and equipment	41.4	45.5
Operating Segments | LongHorn Steakhouse
Segment Reporting Information [Line Items]
Sales	430.4	404.5
Restaurant and marketing expenses	360.2	340.9
Segment profit	70.2	63.6
Depreciation and amortization	16.7	16.4
Impairments and disposal of assets, net	0.1	0.0
Purchases of land, buildings and equipment	19.1	15.9
Operating Segments | Fine Dining
Segment Reporting Information [Line Items]
Sales	129.9	122.2
Restaurant and marketing expenses	109.2	103.0
Segment profit	20.7	19.2
Depreciation and amortization	8.2	7.8
Impairments and disposal of assets, net	0.0	0.0
Purchases of land, buildings and equipment	8.3	6.1
Operating Segments | Other Business
Segment Reporting Information [Line Items]
Sales	449.1	419.5
Restaurant and marketing expenses	383.8	353.6
Segment profit	65.3	65.9
Depreciation and amortization	22.2	19.8
Impairments and disposal of assets, net	0.0	0.0
Purchases of land, buildings and equipment	35.7	27.3
Corporate
Segment Reporting Information [Line Items]
Sales	0.0	0.0
Restaurant and marketing expenses	0.0	0.0
Segment profit	0.0	0.0
Depreciation and amortization	0.0	0.0
Impairments and disposal of assets, net	0.0	(0.8)
Purchases of land, buildings and equipment	$ 1.9	$ 0.9