Income Taxes (Income Tax Payments) (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 02, 2020	Sep. 27, 2019	Sep. 28, 2018
Income Tax Disclosure [Abstract]
Income tax payments	$ 39.8	$ 291.7	$ 44.3

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4297-108586

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585

Name:	us-gaap_IncomeTaxesPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration