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Share Repurchase Share repurchase (Details) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Dec. 09, 2020	Jun. 26, 2021	Dec. 26, 2020	Jun. 26, 2021	Dec. 11, 2019
December 11, 2019
share repurchase plan [Line Items]
Stock Repurchase Program, Authorized Amount					$ 500.0
December 11, 2020
share repurchase plan [Line Items]
Stock Repurchase Program, Authorized Amount	$ 1,000.0
Stock Repurchase Program, Period in Force	5 years
December 11, 2019
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares			1.5
Repurchase of equity			$ 101.3
December 11, 2020
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares		3.0		4.6
Repurchase of equity		$ 188.4		$ 308.5
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 691.6		$ 691.6

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[Line Items] for share repurchase plan [Table]

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The net cash inflow or outflow resulting from the entity's share transaction.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
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Amount of stock repurchase plan authorized.

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Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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