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Debt (Senior Notes Due 2022) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Apr. 03, 2019	Jan. 02, 2014
Debt Instrument [Line Items]
Loss on Extinguishment of Debt	$ 12,126,000	$ 23,509,000	$ 12,126,000	$ 23,509,000
Senior Notes [Member] | Senior Notes 5.375% Due 2022 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument						$ 500,000,000.0
Stated interest rate	5.375%		5.375%			5.375%
Senior Notes [Member] | Senior Notes 5.25% Due 2027 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument					$ 500,000,000.0
Stated interest rate	5.25%		5.25%		5.25%
Loss on Extinguishment of Debt	$ 12,100,000

X

- Definition

Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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