Consolidated Statements Of Operations - USD ($) $ in Thousands, shares in Millions	12 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Oct. 01, 2021
Income Statement [Abstract]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 4,772,400	$ 5,485,500	$ 5,109,100
Cost of Goods and Services Sold	2,665,100	2,881,200	2,596,700
Gross profit	2,107,300	2,604,300	2,512,400
Operating expenses:
Research and development	606,800	617,900	532,300
Selling, general and administrative	314,000	329,800	322,500
Amortization of intangibles	33,200	98,900	36,000
Restructuring and other charges	28,300	30,700	8,900
Total operating expenses	982,300	1,077,300	899,700
Operating income	1,125,000	1,527,000	1,612,700
Interest Expense	(64,400)	(47,900)	13,400
Other income (expense), net	18,200	(2,500)	(600)
Income before income taxes	1,078,800	1,476,600	1,598,700
Provision for income taxes	96,000	201,400	100,400
Net income	$ 982,800	$ 1,275,200	$ 1,498,300
Earnings per share:
Basic (in dollars per share)	$ 6.17	$ 7.85	$ 9.07
Diluted (in dollars per share)	$ 6.13	$ 7.81	$ 8.97
Weighted average shares:
Basic (in shares)	159.4	162.4	165.2
Diluted (in shares)	160.3	163.3	167.0
Cash dividends declared and paid per share (in dollars per share)	$ 2.54	$ 2.30