Long-term Debt - Schedule of Outstanding Non-Recourse Asset-Backed Debt and Bank Loans (Parenthetical) (Detail) - USD ($) $ in Millions |
Sep. 30, 2017 |
Dec. 31, 2016 |
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| Financial Instruments Owned and Pledged as Collateral [Line Items] | ||
| Debt issuance costs | $ 21 | |
| Asset-Backed Nonrecourse Debt Agreement [Member] | ||
| Financial Instruments Owned and Pledged as Collateral [Line Items] | ||
| Debt issuance costs | 21 | $ 17 |
| Total collateral pledged against our nonrecourse debt | 1,416 | $ 864 |
| Other Assets [Member] | 2017 Master Repurchase Agreement [Member] | ||
| Financial Instruments Owned and Pledged as Collateral [Line Items] | ||
| Debt issuance costs | $ 2 |
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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- Definition Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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