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Share Repurchase Share repurchase (Details) - USD ($) shares in Millions		3 Months Ended
	Nov. 20, 2019	Mar. 28, 2020	Dec. 28, 2019
share repurchase plan [Line Items]
Total repurchase authorization	$ 500,000,000.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount		$ 362,600,000
ASR Authorized		205,000,000	$ 205,000,000
ASR Shares Repurchased during the period		$ 600,000	3,300,000
Amount paid during the period under ASR Agreement			$ 164,000,000.0
June 13, 2019 Plan [Member]
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares		2.4
Repurchase of equity		$ 130,100,000
November 19, 2019 Plan [Member]
share repurchase plan [Line Items]
Stock Repurchased During Period, Shares		3.5
Repurchase of equity		$ 137,500,000

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ASR Authorized

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- Definition

ASR Shares Repurchased during the period

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Amount paid during the period under ASR Agreement

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[Line Items] for share repurchase plan [Table]

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Treasury Stock Authorized

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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Amount remaining of a stock repurchase plan authorized.

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- Definition

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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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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