Segment Information - Summary Sales Mix for Principal Product and Service Categories (Detail) - USD ($) $ in Millions	12 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Segment Reporting Information [Line Items]
Total sales	$ 50,894.1	$ 30,398.9	$ 25,086.3
Center of the Plate [Member]
Segment Reporting Information [Line Items]
Total sales	11,332.2	8,931.1	6,677.7
Cigarettes [Member]
Segment Reporting Information [Line Items]
Total sales	13,197.4	4,231.4	3,728.3
Frozen Foods [Member]
Segment Reporting Information [Line Items]
Total sales	4,086.8	3,484.4	2,859.4
Canned and Dry Groceries [Member]
Segment Reporting Information [Line Items]
Total sales	4,602.5	3,290.0	2,561.2
Refrigerated and Dairy Products [Member]
Segment Reporting Information [Line Items]
Total sales	4,230.2	2,951.0	2,466.9
Paper Products and Cleaning Supplies [Member]
Segment Reporting Information [Line Items]
Total sales	2,695.5	2,312.1	1,650.1
Candy/Snack/Theater and Concession [Member]
Segment Reporting Information [Line Items]
Total sales	3,826.7	1,725.0	1,939.7
Beverage [Member]
Segment Reporting Information [Line Items]
Total sales	2,511.6	1,534.9	1,624.9
Produce [Member]
Segment Reporting Information [Line Items]
Total sales	1,049.2	876.6	678.1
Other Tobacco Products [Member]
Segment Reporting Information [Line Items]
Total sales	2,511.1	704.0	588.0
Other Miscellaneous Goods and Services [Member]
Segment Reporting Information [Line Items]
Total sales	$ 850.9	$ 358.4	$ 312.0