Employee Stock and Benefit Plans (Stock-Based Compensation Expense Recognized in the Consolidated Financial Statements) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 03, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 302.7	$ 271.6	$ 319.1
Total related tax benefit	50.9	45.9	51.6
Total capitalized stock-based compensation included in net property, plant and equipment on the consolidated balance sheets	3.7	3.9	3.7
Stock Options [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	0.1	(0.2)	2.2
Restricted Stock Units (RSUs) [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 302.6	$ 271.8	$ 316.9