Employee Stock Purchase and Stock Incentive Plans (Stock Purchase and Stock Option Plans Information on the 1999 Plans) (Details) - shares	12 Months Ended
	Oct. 02, 2020	Sep. 27, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	30,950,000
Number of remaining shares reserved for issuance at September 27, 2019 (in shares)	5,632,447
Number of shares relating to outstanding stock options at September 27, 2019 (in shares)	706,489
Number of shares available for future awards (in shares)	4,925,958	5,220,013
1999 SIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	29,850,000
Number of remaining shares reserved for issuance at September 27, 2019 (in shares)	5,272,572
Number of shares relating to outstanding stock options at September 27, 2019 (in shares)	568,114
Number of shares available for future awards (in shares)	4,704,458	4,963,761
1999 SIP | Other Than Option Stock Appreciation Rights SARS
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award number of shares, fungible share basis (in shares)	1.92
Award number of shares, non-fungible share basis (in shares)	1
1999 ODSP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	1,100,000
Number of remaining shares reserved for issuance at September 27, 2019 (in shares)	359,875
Number of shares relating to outstanding stock options at September 27, 2019 (in shares)	138,375
Number of shares available for future awards (in shares)	221,500	256,252
Award number of shares, non-fungible share basis (in shares)	1.92