Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Oct. 02, 2026	Oct. 03, 2025	Sep. 27, 2024
Income Statement [Abstract]
Net revenue	$ 3,959.6	$ 4,086.9	$ 4,178.0
Cost of goods sold	2,344.7	2,404.8	2,457.2
Gross profit	1,614.9	1,682.1	1,720.8
Operating expenses:
Research and development	837.0	785.5	631.7
Selling, general, and administrative	436.1	371.5	300.8
Amortization of intangibles	0.9	0.9	0.9
Restructuring, impairment, and other charges	124.2	24.2	150.0
Total operating expenses	1,398.2	1,182.1	1,083.4
Operating income	216.7	500.0	637.4
Interest expense	(41.3)	(27.1)	(30.7)
Other income, net	38.3	53.8	29.7
Income before income taxes	213.7	526.7	636.4
Provision for income taxes	41.6	49.6	40.4
Net income	$ 172.1	$ 477.1	$ 596.0
Earnings per share:
Basic (in dollars per share)	$ 1.15	$ 3.09	$ 3.72
Diluted (in dollars per share)	$ 1.14	$ 3.08	$ 3.69
Weighted average shares:
Basic (in shares)	150.0	154.4	160.1
Diluted (in shares)	151.0	155.1	161.5
Common stock, dividends paid (in dollars per share)	$ 2.13	$ 2.81