Summary of Significant Accounting Policies Effects of Early Adoption of New Accounting Pronouncement (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2023	Oct. 02, 2022	Oct. 03, 2021	Aug. 26, 2018
Amortization of Intangible Assets	$ 21.5	$ 192.7	$ 223.4
Deferred Revenue, Revenue Recognized	176.5	176.5	$ 176.6
Deferred Revenue				$ 7,000.0
Deferred Revenue, Current	1,700.2	1,641.9
Retained Earnings (Accumulated Deficit)	(7,255.8)	(8,449.8)
Deferred Revenue, Noncurrent	6,101.8	6,279.7
Deferred Tax and Other Liabilities, Noncurrent	513.8	610.5
Operating Lease, Right-of-Use Asset	8,412.6	8,015.6
Operating Lease, Liability, Noncurrent	$ 7,924.8	$ 7,515.2