Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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Acquisitions and Divestitures (Intangible Assets Acquired) (Details) - USD ($) $ in Millions			12 Months Ended
	Jan. 19, 2018	Dec. 11, 2017	Sep. 27, 2019
Customer relationship assets
Business Acquisition [Line Items]
Weighted-average estimated useful life (in years)			14 years
AmeriPride
Business Acquisition [Line Items]
Total intangible assets	$ 321.0
AmeriPride \| Customer relationship assets
Business Acquisition [Line Items]
Weighted-average estimated useful life (in years)	15 years
Total intangible assets	$ 297.0
AmeriPride \| Trade names
Business Acquisition [Line Items]
Weighted-average estimated useful life (in years)	3 years
AmeriPride \| Trade names \| Trade names
Business Acquisition [Line Items]
Total intangible assets	$ 24.0
Avendra
Business Acquisition [Line Items]
Total intangible assets		$ 789.0
Avendra \| Trade names
Business Acquisition [Line Items]
Trade name		222.0
Avendra \| Customer relationship assets
Business Acquisition [Line Items]
Customer relationship assets		$ 567.0
Weighted-average estimated useful life (in years)		15 years