Shareholders' Equity (Share Repurchase Activity) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Sep. 30, 2012	Oct. 02, 2011
Equity [Abstract]
Number of shares acquired	12.3	15.6
Average price per share of acquired shares	$ 48.15	$ 35.53
Total cost of acquired shares	$ 593.2	$ 555.9

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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