Stockholders' Equity (Share Repurchase) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Oct. 02, 2020	Sep. 27, 2019	Sep. 28, 2018
Share Repurchase [Line Items]
Share repurchase program	$ 647.5	$ 657.6	$ 759.5
Share repurchase program (in shares)	(6.3)	(8.9)	(7.7)
Treasury stock, average price per share (in dollars per share)	$ (102.74)	$ (74.26)	$ (98.84)
Remaining shares available under share repurchase program	$ 978.8
Authorized repurchased amount	$ 2,000.0

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the par value method.

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