Stockholder's Equity (Share Based Compensation) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2023	Dec. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Document Period End Date	Dec. 29, 2023
Share-based compensation expense	$ 53.3	$ 49.4
Cost of sales [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	8.8	2.6
Research and development [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	25.4	27.9
Selling, general and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	$ 19.1	$ 18.9