Earnings (Loss) Per Share - Convertible Notes (Details) - Convertible Notes Payable - 2.625 Percent Convertible Notes Due 2024 [Member]	Jan. 29, 2019 $ / shares
Debt Instrument [Line Items]
Interest rate, stated percentage	2.625%
Conversion price (in dollars per share)	$ 88.80
Option indexed to issuer's equity, strike price (in dollars per share)	$ 114.92

The price per share of the conversion feature embedded in the debt instrument.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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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
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

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.

+ References

No definition available.

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- Definition

Exercise or strike price stated in the contract for options indexed to the issuer's equity shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 50
-Paragraph 5
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-URI http://asc.fasb.org/extlink&oid=120519210&loc=d3e90205-114008

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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