Income Taxes - Provision for Income Taxes Differs from Federal Statutory Rate (Detail) - USD ($) $ in Millions		12 Months Ended
		Jun. 29, 2024	Jun. 24, 2023	Jun. 25, 2022
Income Tax Disclosure [Abstract]
(Benefit)/provision at U.S. federal statutory tax rate		$ (26.2)	$ 26.4	$ 67.3
Non-deductible share-based compensation		7.6	6.6	7.9
Shortfall/(windfall) related to share-based compensation		3.5	(1.3)	(18.1)
Non-deductible officer compensation		4.8	6.4	6.5
Business credits		(5.2)	(5.2)	(10.0)
Foreign tax differential		45.2	(0.5)	6.4
U.S. inclusion of foreign income		(0.3)	21.0	3.6
Deferred taxes on unremitted foreign earnings		0.0	0.3	0.7
U.S. provision to return adjustment	[1]	(18.1)	0.4	(3.2)
Deferred tax benefit from domestication	[2]	(262.8)	0.0	0.0
Other differences		1.3	(1.7)	3.5
(Benefit)/provision for income taxes		$ (250.2)	$ 52.4	$ 64.6

[1] U.S. provision to return adjustment in fiscal 2024 was primarily driven by approximately $11.3 million tax benefit from foreign tax credit relief under U.S. Treasury Notice 2023-55 issued in July 2023, together with a tax benefit of approximately $6.3 million recognized as part of a multiyear research and development tax credit study completed in fiscal 2024.

[2] On June 29, 2024, we completed an intra-group transfer that involved the domestication of certain foreign subsidiaries and the migration of certain foreign intellectual property to the United States. See further discussion below.