Debt and Borrowing Arrangements (Details 3) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Contractual debt maturities
Within one year	$ 2,553
Between one and two years	1,378
Between two and three years	1,272
Between three and four years	727
Between four and five years	168
Thereafter	287
Total	6,385
Vehicle Asset-Backed Debt
Contractual debt maturities
Within one year	936
Between one and two years	1,128
Between two and three years	822
Between three and four years	477
Between four and five years	160
Thereafter	12
Total	3,535
Mortgage Asset-Backed Debt
Contractual debt maturities
Within one year	1,617
Total	1,617
Unsecured Debt
Contractual debt maturities
Between one and two years	250
Between two and three years	450
Between three and four years	250
Between four and five years	8
Thereafter	275
Total	$ 1,233

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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

-Publisher SEC

-Name Regulation S-X (SX)

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-Section 02

-Paragraph 20

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

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