Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

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

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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

Amount, after accumulated amortization, of debt discount.

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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

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Debt Exchange, Amount

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No definition available.

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- Definition

Debt Instrument, Covenant Compliance, Leverage Ratio Required

+ References

No definition available.

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- Definition

Line of Credit Facility, Prepayment as Percentage of Excess Cash Flow

+ References

No definition available.

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Debt - Term Loan Facility (Details)		1 Months Ended				12 Months Ended
Debt - Term Loan Facility (Details)	Mar. 10, 2017	Feb. 28, 2018 USD ($)	Mar. 31, 2017 USD ($)	Aug. 31, 2016 USD ($)	Oct. 31, 2015 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Debt extinguishment loss						$ 27,000,000	$ 36,000,000	$ 70,000,000
Secured Debt \| Amendment No. 2 to Credit Agreement
Debt Instrument [Line Items]
Long-term debt			$ 1,494,000,000
Secured Debt \| Amendment No. 3 to Credit Agreement
Debt Instrument [Line Items]
Long-term debt		$ 1,503,000,000
Secured Debt \| Amendment No. 1 to Credit Agreement
Debt Instrument [Line Items]
Long-term debt			$ 1,482,000,000
Term loan facility
Debt Instrument [Line Items]
Secured revolving loan credit agreement amount					$ 1,600,000,000
Original issue discount					$ 32,000,000
Long-term debt				$ 1,592,000,000
Debt extinguishment loss						$ 10,000,000
Amount of debt exchanged during period				1,197,000,000
Prepayment as percentage of excess cash flow					50.00%
Required leverage ratio (less than or equal to)						2.5
Term loan facility \| Base Rate
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate					3.50%
Term loan facility \| LIBOR
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate					4.50%
Term loan facility \| Minimum \| LIBOR
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	0.00%
Term loan facility \| Amendment No. 2 to Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate			1.25%
Term loan facility \| Amendment No. 2 to Credit Agreement \| LIBOR
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate	0.00%		2.25%
Term loan facility \| Amendment No. 3 to Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		1.00%
Term loan facility \| Amendment No. 3 to Credit Agreement \| LIBOR
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate		2.00%
Term loan facility \| Amendment No. 1 to Credit Agreement
Debt Instrument [Line Items]
Long-term debt				1,592,000,000
Debt extinguishment loss				$ 18,000,000
Term loan facility \| Amendment No. 1 to Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate				2.25%
Term loan facility \| Amendment No. 1 to Credit Agreement \| LIBOR
Debt Instrument [Line Items]
Percent added to reference rate in effect from time to time to set the interest rate				3.25%	1.00%
Term loan facility \| Incremental Term B1 Loans
Debt Instrument [Line Items]
Face amount				$ 400,000,000
Term loan facility \| Incremental Term B2 Loans
Debt Instrument [Line Items]
Face amount				$ 50,000,000
Term loan facility \| Secured Debt
Debt Instrument [Line Items]
Annual effective interest rate						4.51%
Term loan facility \| Secured Debt \| Amendment No. 2 to Credit Agreement
Debt Instrument [Line Items]
Debt extinguishment loss						$ 8,000,000
Term Loan Facility, Scenario 1
Debt Instrument [Line Items]
Prepayment as percentage of excess cash flow					25.00%
Term Loan Facility, Scenario 1 \| Minimum
Debt Instrument [Line Items]
Required leverage ratio (less than or equal to)					2.5
Term Loan Facility, Scenario 1 \| Maximum
Debt Instrument [Line Items]
Required leverage ratio (less than or equal to)					3
Term Loan Facility, Scenario 2
Debt Instrument [Line Items]
Prepayment as percentage of excess cash flow					0.00%
Term Loan Facility, Scenario 2 \| Maximum
Debt Instrument [Line Items]
Required leverage ratio (less than or equal to)					2.5