Stockholder's Equity (Share Based Compensation) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2022	Dec. 31, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Document Period End Date	Dec. 30, 2022
Share-based compensation expense	$ 49.4	$ 50.4
Cost of sales [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	2.6	8.7
Research and development [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	27.9	18.8
Selling, general and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	$ 18.9	$ 22.9