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Stock-Based Compensation (Assumptions Used To Determine Fair Value Of Stock Options Granted) (Details)	12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Stock-Based Compensation [Abstract]
Expected life (in years)	3 years 6 months	3 years	2 years 10 months 24 days
Risk-free interest rate	0.50%	0.80%	1.00%
Expected volatility	34.50%	35.40%	40.00%
Dividend yield	2.50%	1.80%	2.10%

The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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