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Debt Debt (Senior Notes Due 2027) (Details) - Senior Notes [Member] - USD ($)	Apr. 03, 2019	Mar. 30, 2019	Jan. 02, 2014
Senior Notes 5.375% Due 2022 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument			$ 500,000,000
Stated interest rate		5.375%	5.375%
Subsequent Event | Senior Notes 5.25% Due 2027 [Member]
Debt Instrument [Line Items]
Face amount of debt instrument	$ 500,000,000
Stated interest rate	5.25%

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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+ References

No definition available.

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