Summary of Significant Accounting Policies and Estimates - Additional Information (Detail) - USD ($)	12 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jun. 27, 2020
Schedule Of Significant Accounting Policies [Line Items]
Funds deposited in insurance trusts	$ 7,100,000	$ 11,100,000
Provision (benefit) for doubtful accounts	9,000,000.0	(23,800,000)	$ 80,000,000.0
Inventories, net	3,428,600,000	1,839,400,000
Inventories at first in first out cost	1,954,400,000
Inventories at last in first out cost	1,474,200,000
Inventory reserve	173,500,000	50,700,000
Consideration received from vendors	101,800,000	50,900,000
Adjusted inventories	$ 26,400,000	19,700,000
Estimated useful lives of assets	Depreciation of property, plant and equipment, including finance lease assets, is calculated primarily using the straight-line method over the estimated useful lives of the assets, which range from two to 39 years
Impairment losses	$ 0	0	0
Impairment of goodwill and intangible assets	0	0	0
State and local excise taxes	3,700,000,000	1,200,000,000	1,100,000,000
Contract assets	26,400,000	19,900,000
Cost of goods sold	$ 45,637,700,000	26,873,700,000	22,217,100,000
Employee Stock Purchase Plan [Member]
Schedule Of Significant Accounting Policies [Line Items]
Eligible employees to purchase common stock at discount, percent	15.00%
Shipping and Handling Fees
Schedule Of Significant Accounting Policies [Line Items]
Cost of goods sold	$ 2,253,200,000	1,450,700,000	$ 1,197,700,000
Minimum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Useful lives of assets	2 years
Intangible assets estimated useful life	2 years
Maximum [Member]
Schedule Of Significant Accounting Policies [Line Items]
Useful lives of assets	39 years
Intangible assets estimated useful life	12 years
Fair Value Inputs Level 1 [Member]
Schedule Of Significant Accounting Policies [Line Items]
Funds deposited in insurance trusts	$ 7,100,000	$ 11,100,000