Stockholders' Equity and Stock Compensation Plans - ESPP Fair Value Assumptions (Details) - ESPP	12 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Oct. 01, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.60%	0.70%	0.70%
Expected stock price volatility	29.20%	27.10%	38.00%
Risk-free rate of return, annual	4.10%	4.70%	4.70%
Expected life (in years)	1 year	1 year	1 year