SEGMENT INFORMATION (Schedule of Segment Reporting) (Details) $ in Millions		3 Months Ended		6 Months Ended
		Dec. 23, 2020 USD ($) Country territories Restaurants Location	Dec. 25, 2019 USD ($)	Dec. 23, 2020 USD ($) Country territories Restaurants Location	Dec. 25, 2019 USD ($)		Jun. 24, 2020 USD ($)	Sep. 05, 2019 USD ($) Restaurants
Segment Reporting Information [Line Items]
Number of U.S. territories in which entity operates | Location		2		2
Segment Information, disclosure of major customers				We do not rely on any major customers as a source of sales,
Total revenues		$ 760.7	$ 869.3	$ 1,500.8	$ 1,655.3
Food and beverage costs		198.9	223.1	392.4	426.9
Restaurant labor		255.8	291.8	503.8	560.3
Restaurant expenses		211.3	224.7	413.8	432.0
Depreciation and amortization		37.2	39.3	74.6	77.4
General and administrative		30.0	34.6	60.5	72.6
Other (gains) and charges		5.4	12.3	9.2	11.4
Total operating costs and expenses		738.6	825.8	1,454.3	1,580.6
Operating income (loss)		22.1	43.5	46.5	74.7
Interest expenses		14.4	15.0	29.0	29.9
Other income, net		(0.5)	(0.5)	(0.9)	(1.0)
Income before provision for income taxes		8.2	29.0	18.4	45.8
Segment assets		2,357.7		2,357.7			$ 2,356.0
Segment goodwill		$ 188.0		188.0			$ 187.6
Payments for property and equipment				$ 37.1	51.4
Number of restaurants | Restaurants		1,655		1,655
Chili's Restaurants [Member]
Segment Reporting Information [Line Items]
Number of foreign countries in which entity operates | Country		27		27
Number of U.S. territories in which entity operates | territories		2		2
Total revenues		$ 696.4	743.1	$ 1,382.9	1,438.7	[1]
Food and beverage costs		183.7	195.1	364.5	377.5	[1]
Restaurant labor		233.4	251.0	461.6	484.1	[1]
Restaurant expenses		188.7	194.2	370.1	375.0	[1]
Depreciation and amortization		30.8	32.1	61.4	62.8	[1]
General and administrative		5.4	8.5	10.8	17.6	[1]
Other (gains) and charges		4.4	10.6	8.0	9.0	[1]
Total operating costs and expenses		646.4	691.5	1,276.4	1,326.0	[1]
Operating income (loss)		50.0	51.6	106.5	112.7	[1]
Interest expenses		1.4	1.1	2.8	2.0	[1]
Other income, net		(0.2)	(0.1)	(0.3)	(0.3)	[1]
Income before provision for income taxes		48.8	50.6	104.0	111.0	[1]
Segment assets		1,929.5		1,929.5
Segment goodwill		149.6		149.6
Payments for property and equipment				32.8	42.4	[1]
Maggiano's Restaurants [Member]
Segment Reporting Information [Line Items]
Total revenues		64.3	126.2	117.9	216.6
Food and beverage costs		15.2	28.0	27.9	49.4
Restaurant labor		22.4	40.8	42.2	76.2
Restaurant expenses		22.1	30.4	42.9	56.7
Depreciation and amortization		3.4	4.0	7.0	8.0
General and administrative		1.3	1.5	2.6	3.2
Other (gains) and charges		0.8	0.0	0.9	0.1
Total operating costs and expenses		65.2	104.7	123.5	193.6
Operating income (loss)		(0.9)	21.5	(5.6)	23.0
Interest expenses		0.1	0.0	0.1	0.0
Other income, net		0.0	0.0	0.0	0.0
Income before provision for income taxes		(1.0)	21.5	(5.7)	23.0
Segment assets		226.3		226.3
Segment goodwill		38.4		38.4
Payments for property and equipment				1.0	4.2
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Total revenues		0.0	0.0	0.0	0.0
Food and beverage costs		0.0	0.0	0.0	0.0
Restaurant labor		0.0	0.0	0.0	0.0
Restaurant expenses		0.5	0.1	0.8	0.3
Depreciation and amortization		3.0	3.2	6.2	6.6
General and administrative		23.3	24.6	47.1	51.8
Other (gains) and charges		0.2	1.7	0.3	2.3
Total operating costs and expenses		27.0	29.6	54.4	61.0
Operating income (loss)		(27.0)	(29.6)	(54.4)	(61.0)
Interest expenses		12.9	13.9	26.1	27.9
Other income, net		(0.3)	(0.4)	(0.6)	(0.7)
Income before provision for income taxes		(39.6)	(43.1)	(79.9)	(88.2)
Segment assets		201.9		201.9
Segment goodwill		0.0		0.0
Payments for property and equipment				3.3	4.8
Company sales [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		746.2	847.5	1,474.4	1,611.4
Company sales [Member] | Chili's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		683.0	728.4	1,358.0	1,405.9	[1]
Company sales [Member] | Maggiano's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		63.2	119.1	116.4	205.5
Company sales [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		0.0	0.0	0.0	0.0
Royalties [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		7.7	9.9	14.3	21.8
Royalties [Member] | Chili's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		7.6	9.9	14.2	21.7	[1]
Royalties [Member] | Maggiano's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		0.1	0.0	0.1	0.1
Royalties [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		0.0	0.0	0.0	0.0
Franchise fees and other revenues [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		6.8	11.9	12.1	22.1
Franchise fees and other revenues [Member] | Chili's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		5.8	4.8	10.7	11.1	[1]
Franchise fees and other revenues [Member] | Maggiano's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		1.0	7.1	1.4	11.0
Franchise fees and other revenues [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		0.0	0.0	0.0	0.0
Franchise and other revenues [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		14.5	21.8	26.4	43.9
Franchise and other revenues [Member] | Chili's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		13.4	14.7	24.9	32.8	[1]
Franchise and other revenues [Member] | Maggiano's Restaurants [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		1.1	7.1	1.5	11.1
Franchise and other revenues [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenue from contract with customer, excluding assessed tax		$ 0.0	$ 0.0	$ 0.0	$ 0.0
Chili's restaurant acquisition [Member]
Segment Reporting Information [Line Items]
Segment goodwill	[2]							$ 22.4
Number of restaurants | Restaurants								116

[1] Chili’s segment information for fiscal 2020 includes the results of operations related to the 116 restaurants purchased from a former franchisee subsequent to the September 5, 2019 acquisition date. Refer to Note 15 - Fiscal 2020 Chili’s Restaurant Acquisition for details.

[2] Goodwill is expected to be deductible for tax purposes. The portion of the purchase price attributable to goodwill represents the benefits expected as a result of the acquisition, including sales and unit growth opportunities, and the benefit of the assembled workforce of the acquired restaurants.