Employee Stock Purchase and Stock Incentive Plans (Information Regarding Stock Option Plans) (Details) - $ / shares	12 Months Ended
	Oct. 02, 2020	Sep. 27, 2019	Sep. 28, 2018
At fiscal year end:
Range of exercise prices for options outstanding, minimum (in dollars per share)	$ 32.51	$ 32.51	$ 32.51
Range of exercise prices for options outstanding, maximum (in dollars per share)	$ 60.43	$ 60.43	$ 60.43
Number of options exercisable (in shares)	706,489	860,114	1,557,900
For the fiscal year:
Range of prices relating to options exercised, minimum (in dollars per share)	$ 37.03	$ 36.88	$ 35.93
Range of prices relating to options exercised, maximum (in dollars per share)	$ 60.08	$ 60.43	$ 61.26