Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common stock par value per share	$ 1	$ 1
Entity Common Stock, Shares Authorized	1,000us-gaap_CommonStockSharesAuthorized	1,000us-gaap_CommonStockSharesAuthorized
Entity Common Stock, Shares issued	505us-gaap_CommonStockSharesIssued	502us-gaap_CommonStockSharesIssued
Statement [Line Items]
Finance receivables, net (Note 4) ($23,109 and $21,781 in VIEs; Note 8)	$ 33,000	$ 29,282
Leased vehicles, net (Note 6) ($4,595 and $1,803 in VIEs; Note 8)	7,060	3,383
Secured debt (Note 7) ($22,794 and $19,448 in VIEs; Note 8)	25,214us-gaap_SecuredDebt	22,073us-gaap_SecuredDebt
Accumulated depreciation	59	38
Variable Interest Entity, Primary Beneficiary [Member]
Statement [Line Items]
Finance receivables, net (Note 4) ($23,109 and $21,781 in VIEs; Note 8)	23,108	21,781
Leased vehicles, net (Note 6) ($4,595 and $1,803 in VIEs; Note 8)	4,595	1,803
Secured debt (Note 7) ($22,794 and $19,448 in VIEs; Note 8)	$ 22,795	$ 19,448

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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