Debt (Narrative) (Detail) $ in Millions	9 Months Ended
Sep. 30, 2019 USD ($)
Refinanced Facility [Member]
Senior notes, aggregate principal amount	$ 278
Proceeds from issuance of senior notes	$ 54
Debt Instrument, Maturity Date	Jan. 20, 2022
Debt instrument interest rate	12.00%
Debt issuance cost paid	$ 6
Refinanced Facility [Member] \| Expenses Of Consolidated Variable Interest Entities [Member]
Debt issuance cost expensed	3
Net gains (losses) on extinguishment of debt	$ 1
6.400% Senior Notes due 2022 [Member]
Debt instrument interest rate	6.40%
Long term debt redemption amount	$ 150
Percentage of debt redemption	100.00%

Amount of amortization expense attributable to debt issuance costs.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

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

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Percentage of principal amount of debt redeemed.

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

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

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in liquidation of the entity's assets or underlying collateral.

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