Asset backed variable funding notes commitment period.

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- Definition

Debt instrument current borrowing capacity amount.

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- Definition

Amount of current borrowing capacity under the committed facility considering any current restrictions on the amount that could be borrowed.

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- Definition

Amount of current borrowing capacity under the uncommitted facility considering any current restrictions on the amount that could be borrowed.

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- Definition

Debt instrument outstanding amount reduces available borrowing capacity.

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Balance Type:	debit
Period Type:	instant

- Definition

Debt instrument revolving period expiration date range end.

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- Definition

Debt instrument revolving period expiration date range start.

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- Definition

Amount of unused borrowing capacity under an uncommitted financing arrangement that is available to the entity as of the balance sheet date.

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- 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.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4
-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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	duration

- Definition

Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities.

+ References

+ Details

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- Definition

When presenting a range of maturity dates, the latest date when the outstanding debt instruments are required to be repaid. May be presented in a variety of ways (for example: year only, month and year, day, month and year, and number of years).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 4
-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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2
-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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When presenting a range of maturity dates, the earliest date when the outstanding debt instruments are required to be repaid. May be presented in a variety of ways (for example: year only, month and year, day, month and year, and number of years).

+ References

+ Details

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number APB14-1
-Paragraph 31
-Subparagraph b
-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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20
-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.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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Debt and Borrowing Arrangements (Details Textuals 1) (USD $)	6 Months Ended			6 Months Ended								6 Months Ended
	Jun. 30, 2011 Term Notes [Member] Unsecured Debt [Member]	Jun. 30, 2011 Term Notes [Member] Unsecured Debt [Member] Senior Notes [Member]	Jun. 30, 2011 Term Notes [Member] Unsecured Debt [Member] Medium-term notes [Member]	Jun. 30, 2011 Variable-funding notes [Member] Vehicle Management Asset-Backed Debt [Member] FLRT Series 2010-2 [Member]	Jun. 30, 2011 Variable-funding notes [Member] Vehicle Management Asset-Backed Debt [Member] Chesapeake Series 2010-1 [Member]	Jun. 30, 2011 Variable-funding notes [Member] Vehicle Management Asset-Backed Debt [Member] Chesapeake Series 2011-1 [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] CSFB Facility [Member] Committed warehouse facilities [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] RBS Facility [Member] Committed warehouse facilities [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] RBS Facility [Member] Uncommitted Warehouse Facilities [Member]	Jun. 30, 2011 Unsecured Debt [Member] Convertible notes [Member]	Dec. 31, 2010 Unsecured Debt [Member] Convertible notes [Member]	Jun. 30, 2011 Unsecured Debt [Member] Convertible notes [Member] 2012 Series [Member]	Jun. 30, 2011 Unsecured Debt [Member] Convertible notes [Member] 2014 Series [Member]	Jun. 30, 2011 Vehicle Management Asset-Backed Debt [Member]	Jun. 30, 2011 Vehicle Management Asset-Backed Debt [Member] Term notes, in amortization [Member]	Jun. 30, 2011 Vehicle Management Asset-Backed Debt [Member] Term notes, in revolving period [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] Committed warehouse facilities [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] Committed warehouse facilities [Member] Ally Bank facility [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] Committed warehouse facilities [Member] Fannie Mae Facility [Member]	Jun. 30, 2011 Mortgage Asset-Backed Debt [Member] Uncommitted Warehouse Facilities [Member] Fannie Mae Facility [Member]
Debt Instrument [Line Items]
Unused Capacity for mortgage asset-backed debt, uncommitted warehouse facilities																				$ 2,200,000,000
Variable-rate uncommitted facilities, total capacity									200,000,000											3,000,000,000
Long term debt, face amount		350,000,000	423,000,000									250,000,000	250,000,000
Debt Instrument, Unamortized Discount										53,000,000	70,000,000
Debt instruments Effective interest rate	9.40%									12.70%
Debt instruments interest rate stated percentage		9.25%										4.00%	4.00%
Asset-backed variable funding notes commitment period														364 days			364 days
Capacity								500,000,000
Debt Instrument Current Borrowing Capacity Amount					700,000,000	500,000,000
Debt Instrument Maturity Date		Dec. 31, 2016		Aug. 30, 2011	Jun. 27, 2012	Jun. 27, 2013	May 23, 2012	Jun. 22, 2011				Apr. 15, 2012	Sep. 01, 2014
Debt Instrument Revolving Period Expiration Date Range Start																Oct. 20, 2011
Debt Instrument Revolving Period Expiration Date Range End																Jun. 27, 2013
Debt Instrument Maturity Date Range Start	2013/03/01														September 2012		2011/10/5
Debt Instrument Maturity Date Range End	2018/04/15														March 2014		2012/6/22
Debt Instrument, Maturity Date, Description																		Earliest of (i) July 31, 2011 or (ii) 90 days after either the Company or Ally Bank gives notice of termination
Outstanding uncommitted mortgage repurchase facility																			$ 1,000,000,000