Business Combinations - Summary of Purchase Price Allocation of Major Class of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Jun. 29, 2024	Jul. 01, 2023	Jul. 02, 2022	Sep. 01, 2021
Business Acquisition [Line Items]
Goodwill	$ 2,418.3	$ 2,301.0	$ 2,279.2
Core-Mark [Member]
Business Acquisition [Line Items]
Net working capital	22.5			$ 979.5
Goodwill	116.4			863.2
Intangible assets with definite lives:
Property, plant and equipment	73.0			391.4
Operating lease right-of-use assets	9.0			235.3
Other assets	1.0			26.1
Deferred tax liabilities	(44.8)			(234.6)
Finance lease obligations	(10.3)			(105.6)
Operating lease obligations	(9.0)			(221.7)
Other liabilities				(46.5)
Total purchase price	307.7			2,394.1
Core-Mark [Member] | Customer Relationships [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	120.2			360.0
Core-Mark [Member] | Trade Names [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	21.4			140.0
Core-Mark [Member] | Technology [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	0.5			$ 7.0
Core-Mark [Member] | Non-Compete [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	$ 7.8