Business Combinations - Summary of Purchase Price Allocation of Major Class of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Millions	Dec. 28, 2024	Jun. 29, 2024
Business Acquisition [Line Items]
Goodwill	$ 3,407.5	$ 2,418.3
Business Acquisition Cost [Member]
Business Acquisition [Line Items]
Net working capital	284.6
Goodwill	994.2
Intangible assets with definite lives:
Property, plant and equipment	782.3
Operating lease right-of-use assets	6.3
Other assets	10.7
Deferred tax liabilities	(368.4)
Finance lease obligations	(96.0)
Operating lease obligations	(6.3)
Other long-term liabilities	(26.9)
Total purchase price	2,535.5
Business Acquisition Cost [Member] | Customer Relationships [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	715.0
Business Acquisition Cost [Member] | Trade Names [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	240.0
Business Acquisition Cost [Member] | Cheney Brothers [Member]
Business Acquisition [Line Items]
Net working capital	247.2
Goodwill	691.9
Intangible assets with definite lives:
Property, plant and equipment	725.0
Operating lease right-of-use assets	6.3
Other assets	10.5
Deferred tax liabilities	(240.8)
Finance lease obligations	(95.7)
Operating lease obligations	(6.3)
Other long-term liabilities	(26.9)
Total purchase price	1,961.2
Business Acquisition Cost [Member] | Cheney Brothers [Member] | Customer Relationships [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	485.0
Business Acquisition Cost [Member] | Cheney Brothers [Member] | Trade Names [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	165.0
Business Acquisition Cost [Member] | Other [Member]
Business Acquisition [Line Items]
Net working capital	37.4
Goodwill	302.3
Intangible assets with definite lives:
Property, plant and equipment	57.3
Operating lease right-of-use assets	0.0
Other assets	0.2
Deferred tax liabilities	(127.6)
Finance lease obligations	(0.3)
Operating lease obligations	0.0
Other long-term liabilities	0.0
Total purchase price	574.3
Business Acquisition Cost [Member] | Other [Member] | Customer Relationships [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	230.0
Business Acquisition Cost [Member] | Other [Member] | Trade Names [Member]
Intangible assets with definite lives:
Intangible assets with definite lives	$ 75.0