Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Revenue by geographic area	$ 905.5	$ 1,071.2	$ 3,153.0	$ 3,553.6
Revenue by sales channel	905.5	1,071.2	3,153.0	3,553.6
Distributors
Disaggregation of Revenue [Line Items]
Revenue by sales channel	767.1	937.0	2,745.0	3,183.1
Direct customers
Disaggregation of Revenue [Line Items]
Revenue by sales channel	138.4	134.2	408.0	370.5
United States
Disaggregation of Revenue [Line Items]
Revenue by geographic area	658.5	793.9	2,422.8	2,668.8
China
Disaggregation of Revenue [Line Items]
Revenue by geographic area	75.9	81.6	232.7	277.0
Taiwan
Disaggregation of Revenue [Line Items]
Revenue by geographic area	80.7	81.2	226.1	252.0
South Korea
Disaggregation of Revenue [Line Items]
Revenue by geographic area	52.9	48.1	158.1	139.6
Europe, Middle East, and Africa
Disaggregation of Revenue [Line Items]
Revenue by geographic area	31.3	51.3	87.6	164.0
Other Asia-Pacific
Disaggregation of Revenue [Line Items]
Revenue by geographic area	$ 6.2	$ 15.1	$ 25.7	$ 52.2