Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024
Disaggregation of Revenue [Line Items]
Revenue by geographic area	$ 965.0	$ 905.5	$ 2,986.7	$ 3,153.0
Revenue by sales channel	965.0	905.5	2,986.7	3,153.0
Distributors
Disaggregation of Revenue [Line Items]
Revenue by sales channel	816.8	767.1	2,590.2	2,745.0
Direct customers
Disaggregation of Revenue [Line Items]
Revenue by sales channel	148.2	138.4	396.5	408.0
United States
Disaggregation of Revenue [Line Items]
Revenue by geographic area	724.7	658.5	2,295.5	2,422.8
Taiwan
Disaggregation of Revenue [Line Items]
Revenue by geographic area	75.8	80.7	195.6	226.1
China
Disaggregation of Revenue [Line Items]
Revenue by geographic area	64.6	75.9	193.7	232.7
South Korea
Disaggregation of Revenue [Line Items]
Revenue by geographic area	45.5	52.9	140.0	158.1
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Revenue by geographic area	44.4	31.3	133.1	87.6
Other Asia-Pacific
Disaggregation of Revenue [Line Items]
Revenue by geographic area	$ 10.0	$ 6.2	$ 28.8	$ 25.7