Business Combinations - Summary of Purchase Price Allocation of Major Class of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Dec. 30, 2023	Jul. 01, 2023
Business Acquisition [Line Items]
Goodwill	$ 2,418.3	$ 2,301.0
Core-Mark [Member]
Business Acquisition [Line Items]
Net working capital	23.6
Goodwill	116.5
Intangible assets with definite lives:
Property, plant and equipment	72.6
ROU Assets	9.0
Other assets	0.9
Deferred tax liabilities	(45.5)
Operating lease obligations	(9.0)
Finance lease obligations	(9.9)
Total purchase price	308.1
Core-Mark [Member] | Customer Relationships [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	120.2
Core-Mark [Member] | Trade Names [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	21.4
Core-Mark [Member] | Technology [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	0.5
Core-Mark [Member] | Non-Compete [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	$ 7.8