Employee Stock and Benefit Plans (Employee Stock Options Granted During the Period, Valuation Assumptions) (Details) - $ / shares	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019
Share-based Payment Arrangement [Abstract]
Expected term (in years)	8 years 1 month 6 days	7 years 9 months 18 days	4 years 1 month 6 days
Expected stock price volatility	26.30%	27.30%	21.60%
Risk-free interest rate	1.40%	1.20%	2.90%
Expected dividend yield	1.60%	2.90%	2.10%
Weighted average grant price	$ 110.46	$ 56.33	$ 67.33
Estimated fair value per option granted	$ 27.59	$ 11.30	$ 11.06