Segment Information (Schedule of Segment Reporting) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2021	Feb. 23, 2020	Feb. 28, 2021	Feb. 23, 2020
Segment Reporting Information [Line Items]
Sales	$ 1,733.0	$ 2,346.5	$ 4,916.9	$ 6,536.8
Restaurant and marketing expenses	1,414.8	1,880.1	4,029.6	5,345.5
Segment profit	318.2	466.4	887.3	1,191.3
Depreciation and amortization	88.2	87.7	261.8	261.5
Impairments and disposal of assets, net	3.1	0.1	1.4	0.2
Purchases of land, buildings and equipment			177.3	374.5
Operating Segments | Olive Garden
Segment Reporting Information [Line Items]
Sales	872.0	1,169.3	2,489.7	3,283.0
Restaurant and marketing expenses	669.7	922.6	1,938.5	2,617.1
Segment profit	202.3	246.7	551.2	665.9
Depreciation and amortization	35.7	35.3	106.0	107.4
Impairments and disposal of assets, net	0.0	0.6	0.0	2.4
Purchases of land, buildings and equipment			69.8	164.1
Operating Segments | LongHorn Steakhouse
Segment Reporting Information [Line Items]
Sales	454.3	510.7	1,238.4	1,408.2
Restaurant and marketing expenses	372.2	406.1	1,033.0	1,157.2
Segment profit	82.1	104.6	205.4	251.0
Depreciation and amortization	16.3	17.1	49.7	50.9
Impairments and disposal of assets, net	0.0	0.5	0.0	1.7
Purchases of land, buildings and equipment			27.3	61.8
Operating Segments | Fine Dining
Segment Reporting Information [Line Items]
Sales	104.4	188.4	295.6	479.4
Restaurant and marketing expenses	88.0	141.7	249.0	381.9
Segment profit	16.4	46.7	46.6	97.5
Depreciation and amortization	7.8	8.0	23.3	23.9
Impairments and disposal of assets, net	0.0	0.0	0.0	0.0
Purchases of land, buildings and equipment			33.1	50.5
Operating Segments | Other Business
Segment Reporting Information [Line Items]
Sales	302.3	478.1	893.2	1,366.2
Restaurant and marketing expenses	270.5	408.6	786.4	1,184.6
Segment profit	31.8	69.5	106.8	181.6
Depreciation and amortization	24.6	24.7	72.7	73.2
Impairments and disposal of assets, net	3.3	0.0	3.3	0.0
Purchases of land, buildings and equipment			45.0	93.4
Corporate
Segment Reporting Information [Line Items]
Sales	0.0	0.0	0.0	0.0
Restaurant and marketing expenses	14.4	1.1	22.7	4.7
Segment profit	(14.4)	(1.1)	(22.7)	(4.7)
Depreciation and amortization	3.8	2.6	10.1	6.1
Impairments and disposal of assets, net	$ (0.2)	$ (1.0)	(1.9)	(3.9)
Purchases of land, buildings and equipment			$ 2.1	$ 4.7