Segment Information - Schedule of Segment Reporting Information, by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Dec. 28, 2024	Dec. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 15,638.2	$ 14,295.7	$ 31,053.7	$ 29,234.3
Depreciation and amortization	182.5	143.3	335.4	272.6
Capital expenditures	107.4	93.9	203.9	147.1
Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	8,361.6	7,073.6	16,046.6	14,345.3
Depreciation and amortization	115.6	72.7	200.6	143.3
Capital expenditures	89.2	61.6	166.5	92.6
Vistar [Member]
Segment Reporting Information [Line Items]
Net sales	1,233.7	1,201.0	2,518.4	2,450.6
Depreciation and amortization	13.3	12.8	27.7	23.2
Capital expenditures	5.2	15.2	11.2	18.6
Convenience [Member]
Segment Reporting Information [Line Items]
Net sales	5,967.5	5,941.4	12,330.9	12,278.4
Depreciation and amortization	39.0	37.2	77.6	74.9
Capital expenditures	5.2	7.9	15.6	11.9
Corporate & All Other [Member]
Segment Reporting Information [Line Items]
Net sales	75.4	79.7	157.8	160.0
Depreciation and amortization	14.6	20.6	29.5	31.2
Capital expenditures	7.8	9.2	10.6	24.0
Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(172.4)	(154.6)	(354.5)	(320.8)
Eliminations [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	6.7	5.7	13.8	11.0
Eliminations [Member] | Vistar [Member]
Segment Reporting Information [Line Items]
Net sales	0.9	0.9	1.9	1.7
Eliminations [Member] | Convenience [Member]
Segment Reporting Information [Line Items]
Net sales			0.3
Eliminations [Member] | Corporate & All Other [Member]
Segment Reporting Information [Line Items]
Net sales	164.8	148.0	338.5	308.1
Operating Segments [Member] | Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales	8,368.3	7,079.3	16,060.4	14,356.3
Operating Segments [Member] | Vistar [Member]
Segment Reporting Information [Line Items]
Net sales	1,234.6	1,201.9	2,520.3	2,452.3
Operating Segments [Member] | Convenience [Member]
Segment Reporting Information [Line Items]
Net sales	5,967.5	5,941.4	12,331.2	12,278.4
Operating Segments [Member] | Corporate & All Other [Member]
Segment Reporting Information [Line Items]
Net sales	$ 240.2	$ 227.7	$ 496.3	$ 468.1