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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 835
-SubTopic 30
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 835
-SubTopic 30
-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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Balance Type:	credit
Period Type:	instant

- 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

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
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- Definition

Debt Instrument, Cash Interest Rate, Stated Percentage

+ References

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, PIK Interest Rate, Stated Percentage

+ References

No definition available.

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Payments For Early Payment Of Notes, Redemption Premium

+ References

No definition available.

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Debt - Redemption of Prior Notes Narrative (Details) - USD ($)		3 Months Ended
	Feb. 07, 2020	Mar. 31, 2020	Mar. 31, 2019	Jan. 31, 2020
Debt Instrument [Line Items]
Repayments of long-term debt	$ 1,464,000,000.0
Redemption premium		$ 75,000,000.0	$ 0
Other Deductions Net
Debt Instrument [Line Items]
Write off of deferred debt issuance cost		$ 34,300,000
12.00%/13.00% Senior PIK Toggle Notes due 2022 \| Senior Notes
Debt Instrument [Line Items]
Aggregate principal amount				$ 500,000,000.0
Cash interest rate, stated percentage				12.00%
PIK interest rate, stated percentage				13.00%
9.250% Notes due 2024 \| Notes Payable to Banks
Debt Instrument [Line Items]
Aggregate principal amount				$ 750,000,000.0
Stated interest rate				9.25%
Principal amount repurchased	$ 500,000
10.00% Notes due 2024 \| Notes Payable to Banks
Debt Instrument [Line Items]
Aggregate principal amount				$ 120,000,000.0
Stated interest rate				10.00%