Consolidated Statements Of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024
Income Statement [Abstract]
Net revenue	$ 965.0	$ 905.5	$ 2,986.7	$ 3,153.0
Cost of goods sold	564.0	541.4	1,752.1	1,862.0
Gross profit	401.0	364.1	1,234.6	1,291.0
Operating expenses:
Research and development	199.4	160.7	562.4	468.1
Selling, general, and administrative	89.3	71.2	259.9	226.7
Amortization of intangibles	0.2	0.2	0.7	0.7
Restructuring, impairment, and other charges	1.5	1.6	22.6	17.5
Total operating expenses	290.4	233.7	845.6	713.0
Operating income	110.6	130.4	389.0	578.0
Interest expense	(6.6)	(6.6)	(20.2)	(23.8)
Other income, net	8.0	9.6	35.9	23.8
Income before income taxes	112.0	133.4	404.7	578.0
Provision for income taxes	7.0	12.5	69.0	42.5
Net income	$ 105.0	$ 120.9	$ 335.7	$ 535.5
Earnings per share:
Basic (in dollars per share)	$ 0.70	$ 0.75	$ 2.15	$ 3.34
Diluted (in dollars per share)	$ 0.70	$ 0.75	$ 2.14	$ 3.32
Weighted average shares:
Basic (in shares)	150.0	160.4	156.3	160.2
Diluted (in shares)	150.3	161.4	156.9	161.4
Common stock, dividends declared (in dollars per share)	$ 0.70	$ 0.68	$ 2.10	$ 2.04