Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Jun. 26, 2020	Jun. 28, 2019
Statement of Cash Flows [Abstract]
Document Period End Date	Jun. 26, 2020
Net income	$ 567,900	$ 643,000
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation	111,600	58,600
Depreciation	238,200	235,400
Amortization of intangible assets, including inventory step-up	35,400	43,300
Deferred income taxes	(1,800)	(12,100)
Other, net	2,800	100
Changes in assets and liabilities:
Receivables, net	119,200	98,000
Inventory	(83,500)	(89,700)
Accounts payable	12,700	(24,500)
Other current and long-term assets and liabilities	(76,800)	1,400
Net Cash Provided by (Used in) Operating Activities	937,500	950,400
Cash flows from investing activities:
Payments to Acquire Property, Plant, and Equipment	243,500	314,000
Payments to Acquire Marketable Securities	(439,900)	(243,700)
Payments to Acquire Intangible Assets	7,600	11,800
Proceeds from Sale and Maturity of Debt Securities, Available-for-sale	300,000	334,400
Net Cash Provided by (Used in) Investing Activities	(391,000)	(235,100)
Cash flows from financing activities:
Repurchase of common stock - payroll tax withholdings on equity awards	(30,900)	(21,600)
Repurchase of common stock - stock repurchase program	(416,500)	(511,300)
Dividends paid	(223,500)	(198,800)
Net proceeds from exercise of stock options	52,200	14,600
Proceeds from Issuance of Common Stock	12,200	11,300
Net Cash Provided by (Used in) Financing Activities	(606,500)	(705,800)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(60,000)	9,500
Cash and cash equivalents at beginning of period	851,300	733,300
Cash and cash equivalents at end of period	791,300	742,800
Supplemental cash flow disclosures:
Income taxes paid	103,400	116,500
Capital Expenditures Incurred but Not yet Paid	105,800	121,500
Asset Impairment Charges	$ 11,800	$ 0