Business Combinations - Summary of Unaudited Pro-Forma Consolidated Financial Information (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jan. 01, 2022	Dec. 26, 2020	Jan. 01, 2022	Dec. 26, 2020
Business Combinations [Abstract]
Net sales	$ 12,838.8	$ 11,097.3	$ 26,303.4	$ 22,646.7
Net income (loss)	$ 10.1	$ 18.6	$ 47.3	$ (32.0)

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(3)
-URI https://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)
-URI https://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration