Fair Value Of Financial Instruments (Details) (USD $)	Sep. 30, 2013		Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes, Loans and Financing Receivable, Net	$ 23,867,000,000		$ 10,998,000,000
Restricted Cash and Investments	1,371,000,000		744,000,000
Restricted Cash and Cash Equivalents	1,350,000,000		744,000,000
Restricted Cash - Derivative Collateral	48,000,000		4,000,000
Interest Rate Swap Agreements - Assets	8,000,000
Interest Rate Cap Agreements Purchased	5,000,000
Investment Foreign Currency, Contract, Amount Purchased	1,000,000
Secured Debt	18,447,000,000		9,378,000,000
Unsecured Debt	5,228,000,000		1,500,000,000
Interest Rate Swap Agreements - Liabilities	16,000,000
Interest Rate Cap Agreements - Sold	6,000,000
Investment Foreign Currency, Contract, Amount Sold	19,000,000
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,756,000,000		1,289,000,000
Notes, Loans and Financing Receivable, Net	23,867,000,000		10,998,000,000
Restricted Cash and Investments	1,330,000,000		729,000,000
Restricted Cash and Cash Equivalents	41,000,000		15,000,000
Restricted Cash - Derivative Collateral	57,000,000		24,000,000
Interest Rate Swap Agreements - Assets	8,000,000
Interest Rate Cap Agreements Purchased	5,000,000
Investment Foreign Currency, Contract, Amount Purchased	1,000,000
Interest Rate Swap Agreements - Liabilities	16,000,000
Investment Foreign Currency, Contract, Amount Sold	19,000,000
Portion at Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	1,756,000,000	[1]	1,289,000,000	[1]
Notes, Loans and Financing Receivable, Net	24,001,000,000	[2]	11,313,000,000	[2]
Restricted Cash and Investments	1,330,000,000	[1]	729,000,000	[1]
Restricted Cash and Cash Equivalents	41,000,000	[1]	15,000,000	[1]
Restricted Cash - Derivative Collateral	57,000,000	[1]	24,000,000	[1]
Interest Rate Swap Agreements - Assets	8,000,000	[3]
Interest Rate Cap Agreements Purchased	5,000,000	[4]
Investment Foreign Currency, Contract, Amount Purchased	1,000,000	[4]
Interest Rate Swap Agreements - Liabilities	16,000,000	[3]
Interest Rate Cap Agreements - Sold	6,000,000	[4]
Investment Foreign Currency, Contract, Amount Sold	19,000,000	[4]
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Cap Agreements Purchased	5,000,000
Investment Foreign Currency, Contract, Amount Purchased	1,000,000
Interest Rate Cap Agreements - Sold	6,000,000
Investment Foreign Currency, Contract, Amount Sold	19,000,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Agreements - Assets	8,000,000
Interest Rate Swap Agreements - Liabilities	16,000,000
North America [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	11,807,000,000		9,378,000,000
Senior Notes	4,000,000,000
Unsecured Debt	4,000,000,000		1,500,000,000
North America [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	11,807,000,000
Unsecured Debt	4,000,000,000
North America [Member] | Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt			9,378,000,000
North America [Member] | Secured Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	11,884,000,000	[5]	9,526,000,000	[5]
North America [Member] | Unsecured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt			1,500,000,000
North America [Member] | Unsecured Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	4,011,000,000	[6]	1,620,000,000	[6]
International [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	6,640,000,000
Unsecured Debt	1,228,000,000
International [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	4,543,000,000
Unsecured Debt	899,000,000
International [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Secured Debt	2,097,000,000
Unsecured Debt	329,000,000
International [Member] | Secured Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	4,563,000,000	[7]
International [Member] | Secured Debt [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	2,108,000,000	[8]
International [Member] | Unsecured Debt [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	899,000,000	[9]
International [Member] | Unsecured Debt [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ 329,000,000	[8]

[1] The carrying value of cash and cash equivalents and restricted cash is considered to be a reasonable estimate of fair value since these investments bear interest at market rates and have maturities of less than 90 days.

[2] The fair value of the consumer finance receivables in the North America Segment is estimated based upon forecasted cash flows on the receivables discounted using a pre-tax weighted average cost of capital. The fair value of the consumer finance receivables in the International Segment is estimated based on forecasted cash flows on the receivables discounted using current origination rates for similar type loans. Substantially all commercial finance receivables either have variable interest rates and maturities of one year or less, or were acquired or funded within the last year. Therefore, the carrying value is considered to be a reasonable estimate of fair value.

[3] The fair values of the interest rate swap agreements are estimated by discounting future net cash flows expected to be settled using current risk-adjusted rates.

[4] The fair values of the interest rate cap agreements and foreign exchange swap agreements are based on quoted market prices.

[5] Secured debt in the North America Segment is comprised of revolving credit facilities, publicly-issued secured debt, and privately-issued secured debt. For revolving credit facilities with variable rates of interest and terms of one year or less, carrying value is considered to be a reasonable estimate of fair value. The fair value of the publicly and privately issued secured term debt is based on quoted market prices, when available. If quoted market prices are not available, the market value is estimated using quoted market prices of similar securities.

[6] The fair value of unsecured debt in the North America Segment is based on quoted market prices in thinly-traded markets.

[7] The level 2 secured debt in the International Segment has terms of one year or less, or has been priced within the last six months; therefore, carrying value is considered to be a reasonable estimate of fair value.

[8] The fair value of level 3 secured debt and unsecured debt in the International Segment is estimated by discounting future net cash flows expected to be settled using current risk-adjusted rates. These instruments were presented with level 2 valuations in the prior period

[9] The level 2 unsecured debt in the International Segment has terms of one year or less; therefore, carrying value is considered to be a reasonable estimate of fair value.