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

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Period Type:	instant

- Definition

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

+ References

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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

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

+ References

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- Definition

Date the debt instrument was offered for sale, in CCYY-MM-DD format.

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- Definition

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

+ References

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

+ References

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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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Long-Term Debt (6.625% Senior Secured Notes, Due 2025 Narrative) (Details) - USD ($)		3 Months Ended
	Feb. 06, 2020	Mar. 31, 2020	Mar. 31, 2019
Debt Instrument [Line Items]
Pre-tax loss from extinguishment of debt		$ (4,000,000)	$ (31,000,000)
Senior Secured Notes at 6.25%, Due 2023 [Member]
Debt Instrument [Line Items]
Extinguishment of debt amount	$ 426,000,000
Senior Secured Notes [Member] \| Senior Secured Notes at 6.625% Due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, offering date		Feb. 06, 2020
Debt instrument aggregate principal amount	$ 1,462,000,000
Debt instrument stated interest rate	6.625%
Debt instrument, maturity date		Feb. 15, 2025
Debt instrument redemption price percentage		100.00%
Pre-tax loss from extinguishment of debt		$ (4,000,000)
After-tax loss from extinguishment of debt		$ (3,000,000)