Vehicle Leasing Activities (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Operating Leases:
Vehicles under operating leases	$ 8,315	$ 8,328
Less: Accumulated depreciation	(4,931)	(4,959)
Net investment in operating leases	3,384	3,369
Direct Financing Leases:
Lease payments receivable	96	91
Less: Unearned income	(2)
Net investment in direct financing leases	94	91
Off-Lease Vehicles:
Vehicles not yet subject to a lease	253	169
Vehicles held for sale	12	15
Less: Accumulated depreciation	(7)	(8)
Net investment in off-lease vehicles	258	176
Net investment in fleet leases	3,736	3,636
Vehicles under open-end operating leases
Operating Leases:
Vehicles under operating leases	8,176	8,174
Vehicles under closed-end operating leases
Operating Leases:
Vehicles under operating leases	$ 139	$ 154

This element represents net investment in fleet leases.

No definition available.

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- Definition

Represents the net investment in off-lease vehicles.

+ References

No definition available.

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Represents off-lease vehicles accumulated depreciation.

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Represents off-lease vehicles held for sale.

+ References

No definition available.

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Represents off-lease vehicles not yet subject to a lease.

+ References

No definition available.

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- Definition

The net investment in direct financing leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

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- Definition

The remaining (unamortized) difference between the gross investment in a direct financing lease and the cost or carrying amount, if different, of the leased property as of the balance sheet date.

+ References

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

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Amount of remaining payments as of the balance sheet date that lessees are obligated to make or can be required to make under direct financing leases, including any guarantee of residual value and executory costs. The amount also includes any guaranteed rental payments by an unrelated third-party provided that are financially capable of making such payments.

+ References

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- Definition

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

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- Definition

The gross amount of lessor property subject to or available for lease as of the balance sheet date.

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- Definition

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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