Segment Information - Summary Sales Mix for Principal Product and Service Categories (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Segment Reporting Information [Line Items]
Total sales	$ 17,619.9	$ 16,761.8	$ 16,104.8
Center of the Plate [Member]
Segment Reporting Information [Line Items]
Total sales	5,693.4	5,520.5	5,187.5
Frozen Foods [Member]
Segment Reporting Information [Line Items]
Total sales	2,365.0	2,195.3	2,101.3
Refrigerated and Dairy Products [Member]
Segment Reporting Information [Line Items]
Total sales	2,217.3	2,093.7	2,081.7
Canned and Dry Groceries [Member]
Segment Reporting Information [Line Items]
Total sales	2,205.1	2,146.6	2,172.8
Beverage [Member]
Segment Reporting Information [Line Items]
Total sales	1,495.2	1,433.5	1,315.2
Paper Products and Cleaning Supplies [Member]
Segment Reporting Information [Line Items]
Total sales	1,351.8	1,291.6	1,241.4
Candy [Member]
Segment Reporting Information [Line Items]
Total sales	773.4	706.8	687.2
Snack [Member]
Segment Reporting Information [Line Items]
Total sales	730.9	627.2	578.6
Produce [Member]
Segment Reporting Information [Line Items]
Total sales	511.1	490.6	507.7
Theater and Concession [Member]
Segment Reporting Information [Line Items]
Total sales	190.0	156.0	144.2
Merchandising and Other Services [Member]
Segment Reporting Information [Line Items]
Total sales	$ 86.7	$ 100.0	$ 87.2