Business Combinations - Additional Information (Detail) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 30, 2023 USD ($) Acquisition	Dec. 31, 2022 USD ($) Acquisition	Jul. 01, 2023 USD ($)
Business Acquisition [Line Items]
Number of acquisitions | Acquisition			2	1
Goodwill	$ 2,418.3		$ 2,418.3		$ 2,301.0
Cash payment for acquisition			308.1	$ 65.8
Net sales	14,295.7	$ 13,898.9	29,234.3	28,618.2
Net loss	78.3	71.1	199.0	166.8
Acquisition costs, after tax	(3.9)	$ (2.8)	$ (13.7)	(5.8)
Core-Mark [Member]
Business Acquisition [Line Items]
Number of acquisitions | Acquisition			2
Intangible assets estimated useful life			4 years 7 months 6 days
Goodwill	$ 116.5		$ 116.5
Core-Mark [Member] | Maximum [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			7 years
Core-Mark [Member] | Minimum [Member]
Business Acquisition [Line Items]
Intangible assets estimated useful life			3 years
Business Acquisition Cost [Member]
Business Acquisition [Line Items]
Cash payment for acquisition			$ 308.1	$ 65.8