Income Taxes, Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Oct. 03, 2025	Sep. 27, 2024
Deferred tax assets:
Inventory	$ 24.4	$ 44.5
Accrued compensation and benefits	18.6	16.5
Product returns, allowances, and warranty	5.1	5.5
Share-based and other deferred compensation	32.4	25.3
Net operating loss carry forwards	6.4	6.4
Tax credits	179.6	165.7
Lease liabilities	48.9	46.1
R&D capitalization	257.6	170.4
Intangible assets	43.6	50.0
Other, net	15.8	4.8
Deferred tax assets	632.4	535.2
Less valuation allowance	(186.8)	(174.1)
Net deferred tax assets	445.6	361.1
Deferred tax liabilities:
Property, plant, and equipment	(48.0)	(22.5)
Right of use assets	(50.1)	(47.0)
Net deferred tax liabilities	(98.1)	(69.5)
Total net deferred tax assets	347.5	291.6
Income Taxes [Line Items]
Deferred tax assets	375.6	303.5
Total net deferred tax assets	347.5	291.6
Other noncurrent assets
Income Taxes [Line Items]
Deferred tax assets	375.6	303.5
Other noncurrent liabilities
Income Taxes [Line Items]
Deferred tax liabilities	$ (28.1)	$ (11.9)