Segment Information - Schedule of Adjusted EBDITA and Reconciliation to Consolidated Income Before Taxes (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Dec. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Depreciation and amortization	$ (143.3)	$ (125.2)	$ (272.6)	$ (244.4)
Interest expense	(61.4)	(55.7)	(117.5)	(106.1)
Change in LIFO reserve	(21.8)	(25.0)	(41.0)	(51.8)
Stock-based compensation expense	(11.0)	(11.4)	(21.7)	(22.9)
(Loss) gain on fuel derivatives	(1.8)	7.3	1.7	(2.5)
Acquisition, integration & reorganization expenses	(3.9)	(2.8)	(13.7)	(5.8)
Other adjustments	9.5	0.2	10.6	(3.9)
Income before taxes	111.7	96.2	275.0	226.1
Foodservice [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	224.1	214.2	470.1	450.3
Depreciation and amortization	(72.7)	(71.8)	(143.3)	(137.8)
Vistar [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	93.6	92.2	182.2	166.6
Depreciation and amortization	(12.8)	(10.6)	(23.2)	(21.3)
Convenience [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	83.5	69.3	178.2	174.9
Depreciation and amortization	(37.2)	(36.5)	(74.9)	(73.3)
Corporate & All Other [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(55.8)	(66.9)	(101.3)	(128.3)
Depreciation and amortization	$ (20.6)	$ (6.3)	$ (31.2)	$ (12.0)