Segment Information - Schedule of Adjusted EBDITA and Reconciliation to Consolidated Income Before Taxes (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2022	Jan. 01, 2022	Dec. 31, 2022	Jan. 01, 2022	Dec. 26, 2020
Segment Reporting Information [Line Items]
Depreciation and amortization	$ (125.2)	$ (116.5)	$ (244.4)	$ (215.2)
Interest expense	(55.7)	(45.2)	(106.1)	(89.2)
Change in LIFO reserve	(25.0)	(45.5)	(51.8)	(34.2)
Stock-based compensation expense	(11.4)	(14.3)	(22.9)	(24.3)
Gain (Loss) on fuel derivatives	7.3	(1.4)	(2.5)	(0.1)
Acquisition, integration & reorganization expenses	(2.8)	(4.5)	(5.8)	(37.3)	$ 57.4
Other adjustments	(0.2)	(2.3)	(3.9)	(7.6)
Income before taxes	96.2	11.4	226.1	16.9
Foodservice [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	214.2	167.5	450.3	337.6
Depreciation and amortization	(71.8)	(60.7)	(137.8)	(125.0)
Vistar [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	92.2	49.7	166.6	79.9
Depreciation and amortization	(10.6)	(13.1)	(21.3)	(26.2)
Convenience [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	69.3	76.5	174.9	107.9
Depreciation and amortization	(36.5)	(36.6)	(73.3)	(51.7)
Corporate & All Other [Member]
Segment Reporting Information [Line Items]
Adjusted EBITDA	(66.9)	(52.6)	(128.3)	(100.6)
Depreciation and amortization	$ (6.3)	$ (6.1)	$ (12.0)	$ (12.3)

Earnings before interest income taxes depreciation and amortization.

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(Loss) gain on fuel derivatives

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The change in the inventory reserve representing the cumulative difference in cost between the first in, first out and the last in, first out inventory valuation methods, which change has been reflected in the statement of income during the period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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