Aggregate consideration from debt instrument exchanged for cash.

No definition available.

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- Definition

Extinguishment of debt amount through tender offer.

+ References

No definition available.

+ Details

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- Definition

Maximum number of days notice needed to redeem the senior notes at the redemption price plus accrued and unpaid interest.

+ References

No definition available.

+ Details

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- Definition

Minimum number of days notice needed to redeem the senior notes at the redemption price plus accrued and unpaid interest.

+ References

No definition available.

+ Details

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- Definition

Tender offer commencement date.

+ References

No definition available.

+ Details

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- Definition

Tender offer expiration date.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
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Period Type:	duration

- Definition

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

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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
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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.

+ Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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- Definition

Description of debt redemption features under terms of the debt agreement.

+ References

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-Publisher FASB
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-SubTopic 470
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- Definition

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

+ References

+ Details

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

+ Details

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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- Definition

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

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- Definition

The cash inflow associated with the sale of a borrowing supported by a written promise to pay an obligation.

+ References

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Long-Term Debt - 6.875% Senior Notes, Due 2028 - Additional Information (Details) - USD ($) shares in Millions			12 Months Ended
	Dec. 07, 2020	Nov. 19, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Gain (loss) on early extinguishment of debt			$ 317,000,000	$ (54,000,000)	$ 31,000,000
Senior Notes \| Senior Notes at 6.875%, Due 2028
Debt Instrument [Line Items]
Debt instrument aggregate principal amount	$ 700,000,000	$ 1,700,000,000
Debt instrument stated interest rate		6.875%
Cash proceeds received in exchange offer		$ 0
Debt instrument, maturity date		Apr. 01, 2028
Minimum period notice for redemption of debt		15 days
Maximum period notice for redemption of debt		60 days
Debt instrument redemption description			plus a “make-whole” premium, as described in the indenture governing the 6⅞% Senior Notes due 2028.
Maximum principal redeemable using proceeds from a public equity offering, as a percentage of principal amount		40.00%
Aggregate consideration from debt instrument exchanged for cash	$ 400,000,000
Debt instrument converted into shares of common stock	10
Gain (loss) on early extinguishment of debt	$ 205,000,000
Extinguishment of debt amount			$ 226,000,000
Extinguishment of debt amount via tender offer			$ 7,000,000
Tender offer commencement date			Oct. 30, 2020
Tender offer expiration date			Nov. 30, 2020
Senior Notes \| Senior Notes at 6.875%, Due 2028 \| Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt instrument redemption price percentage		100.00%
Senior Notes \| Senior Notes at 6.875%, Due 2028 \| Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt instrument redemption price percentage		106.875%