Debt Instrument, Redemption Price, Call Premium, Percentage

No definition available.

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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
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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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
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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Long-Term Debt - Narrative (Details) - USD ($)	1 Months Ended	12 Months Ended
Long-Term Debt - Narrative (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
2017/2018 Senior Notes due December 2025 \| Period One
Debt Instrument [Line Items]
Redemption price (as a percent)		100.00%
2017/2018 Senior Notes due December 2025 \| Period Two
Debt Instrument [Line Items]
Redemption price (as a percent)		106.75%
Principal amount redeemed (as a percent)		40.00%
2017/2018 Senior Notes due December 2025 \| Period Two \| Minimum
Debt Instrument [Line Items]
Call premium (as a percent)		0.00%
2017/2018 Senior Notes due December 2025 \| Period Two \| Maximum
Debt Instrument [Line Items]
Call premium (as a percent)		5.063%
Senior Notes \| 2017/2018 Senior Notes due December 2025
Debt Instrument [Line Items]
Principal amount of debt instrument		$ 1,000,000,000.00
Stated interest rate (as a percent)		6.75%
Senior Notes \| 2013 Senior Notes due March 2018 and March 2023
Debt Instrument [Line Items]
Repayments of debt	$ 250,000,000
Senior Notes \| 2018 Senior Notes due December 2025
Debt Instrument [Line Items]
Principal amount of debt instrument		$ 500,000,000.0
Stated interest rate (as a percent)		6.75%