Consolidated Balance Sheets - USD ($) $ in Thousands	6 Months Ended
	Apr. 02, 2021	Oct. 02, 2020
Statement of Financial Position [Abstract]
Document Period End Date	Apr. 02, 2021
Current assets:
Cash and cash equivalents	$ 1,059,900	$ 566,700
Marketable Securities, Current	359,700	408,100
Receivables, net of allowance of $0.6 and $0.6, respectively	499,000	393,600
Inventory	739,800	806,000
Other current assets	146,300	143,200
Total current assets	2,804,700	2,317,600
Property, plant, and equipment, net	1,396,600	1,249,500
Operating Lease, Right-of-Use Asset	168,000	167,900
Goodwill	1,189,800	1,189,800
Intangible assets, net	39,100	53,500
Deferred Income Tax Assets, Net	59,000	55,300
Marketable Securities, Noncurrent	4,000	5,200
Other long-term assets	73,200	67,900
Total assets	5,734,400	5,106,700
Current liabilities:
Accounts payable	276,200	226,900
Accrued compensation and benefits	102,900	113,500
Other current liabilities	159,300	108,000
Total current liabilities	538,400	448,400
Long-term tax liabilities	304,200	311,300
Operating Lease, Liability, Noncurrent	148,300	150,700
Other long-term liabilities	31,200	32,100
Total liabilities	1,022,100	942,500
Stockholders’ equity:
Preferred stock, no par value: 25.0 shares authorized, no shares issued	0	0
Common stock, $0.25 par value: 525.0 shares authorized; 233.6 shares issued and 165.1 shares outstanding at April 2, 2021, and 232.3 shares issued and 165.6 shares outstanding at October 2, 2020	41,300	41,400
Additional paid-in capital	3,530,200	3,403,700
Treasury stock, at cost	(4,340,500)	(4,093,500)
Retained earnings	5,489,100	4,820,400
Accumulated other comprehensive loss	(7,800)	(7,800)
Total stockholders’ equity	4,712,300	4,164,200
Total liabilities and stockholders’ equity	$ 5,734,400	$ 5,106,700