Debt Maturities (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Debt Maturities [Abstract]
Debt maturities - 2014	$ 14,284
Debt maturities - 2015	28,311
Debt maturities - 2016	22,250
Debt maturities - 2017	17,412
Debt maturities 2018	6,717
Debt maturities - Thereafter	14,806
DebtAndCapitalLeaseObligationTotal	103,780
Total unamortized discount	(57)	(87)
Total fair value adjustments	228	103
Total debt	103,951	98,693
Unsecured Debt [Member]
Debt Maturities [Abstract]
Debt maturities - 2014	9,848
Debt maturities - 2015	11,413
Debt maturities - 2016	10,385
Debt maturities - 2017	10,696
Debt maturities 2018	5,958
Debt maturities - Thereafter	12,747
Total debt	61,047
Asset-backed Securities [Member]
Debt Maturities [Abstract]
Debt maturities - 2014	4,436
Debt maturities - 2015	16,898
Debt maturities - 2016	11,865
Debt maturities - 2017	6,716
Debt maturities 2018	759
Debt maturities - Thereafter	2,059
Total debt	42,733
Short-term debt [Member]
Debt Maturities [Abstract]
Debt maturities - 2014	9,575
Debt maturities - 2015	2,578
Long-term debt [Member]
Debt Maturities [Abstract]
Debt maturities - 2014	4,709
Debt maturities - 2015	25,733
Unsecured Debt Maturing Primarily by 2024 [Member]
Debt Maturities [Abstract]
Debt maturities - Thereafter	$ 12,731

Fair value adjustment as of the balance sheet date related to designated fair value hedges of unsecured debt.

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations before unamortized discount and fair value adjustments.

+ References

No definition available.

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Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due in the current calendar year.

+ References

No definition available.

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- Definition

carrying value as of the balance sheet date of the sum of short-term debt and current and non-current maturities of long-term debt and capital lease obligations, which are due after the fifth calendar year after the balance sheet date.

+ References

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Carrying value as of the balance sheet date of the sum of short-term debt and current and non-current maturities of long-term debt and capital lease obligations, which are due in the fifth calendar year after the balance sheet date.

+ References

No definition available.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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- Definition

The amount of debt discount (net of debt premium) that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

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