Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 02, 2026	Dec. 27, 2024
Income Statement [Abstract]
Net revenue	$ 1,035.4	$ 1,068.5
Cost of goods sold	608.2	626.6
Gross profit	427.2	441.9
Operating expenses:
Research and development	203.4	176.4
Selling, general, and administrative	108.4	82.6
Amortization of intangibles	0.2	0.2
Restructuring, impairment, and other charges	11.4	1.6
Total operating expenses	323.4	260.8
Operating income	103.8	181.1
Interest expense	(6.3)	(6.8)
Other income, net	12.2	16.1
Income before income taxes	109.7	190.4
Provision for income taxes	30.5	28.4
Net income	$ 79.2	$ 162.0
Earnings per share:
Basic (in dollars per share)	$ 0.53	$ 1.01
Diluted (in dollars per share)	$ 0.53	$ 1.00
Weighted average shares:
Basic (in shares)	149.5	160.4
Diluted (in shares)	150.5	161.4
Common stock, dividends declared (in dollars per share)	$ 0.71	$ 0.70