Stockholder's Equity (Share Based Compensation) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Document Period End Date			Jul. 01, 2022
Share-based compensation expense	$ 52.1	$ 43.4	$ 158.2	$ 144.3
Cost of sales [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	8.0	4.9	22.9	24.0
Research and development [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	24.2	17.9	74.4	62.2
Selling, general and administrative [Member]
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Share-based compensation expense	$ 19.9	$ 20.6	$ 60.9	$ 58.1