Asset-Backed Financing (Narrative) (Details)	12 Months Ended					12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2013 SPEs [Member] USD ($)	Dec. 31, 2012 SPEs [Member] USD ($)	Dec. 31, 2013 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Dec. 31, 2012 Term Asset-Backed Securitization VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Dec. 31, 2012 Term Asset-Backed Securitization Sold at Premium VIEs [Member] Secured Debt [Member] SPEs [Member] USD ($)	Dec. 31, 2013 Asset-backed Canadian Commercial Paper Conduit Facility [Member] Foreign Line of Credit [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Dec. 31, 2012 Asset-backed Canadian Commercial Paper Conduit Facility [Member] Foreign Line of Credit [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Dec. 31, 2013 Asset-backed Canadian Commercial Paper Conduit Facility [Member] Foreign Line of Credit [Member] Variable Interest Entity, Not Primary Beneficiary [Member] CAD	Dec. 31, 2013 Line of Credit [Member] Asset-backed Canadian Commercial Paper Conduit Facility [Member] Foreign Line of Credit [Member] Variable Interest Entity, Not Primary Beneficiary [Member] USD ($)	Dec. 31, 2013 Third-party Bank [Member] Line of Credit [Member] Asset-Backed U.S. Commercial Paper Conduit Facility VIE [Member] SPEs [Member] USD ($)	Dec. 31, 2012 Third-party Bank [Member] Line of Credit [Member] Asset-Backed U.S. Commercial Paper Conduit Facility VIE [Member] SPEs [Member] USD ($)
Variable Interest Entity [Line Items]
Assets transferred to special purpose entities				$ 680,600,000	$ 715,700,000
Debt instrument, face amount						650,000,000	675,300,000	89,500,000
Financial services interest expense	165,491,000	195,990,000	229,492,000			14,500,000	25,800,000		3,400,000	1,100,000			1,200,000	1,400,000
Weighted average interest rate at date of issuance						0.99%	1.09%		2.03%	1.95%
Total aggregate commitment											200,000,000		600,000,000
Line of credit facility, outstanding borrowings														0
Maturity date of Debt Instrument									5 years
Face Amount of Finance Receivables Transferred									101,100,000	230,000,000
Proceeds from Sale of Finance Receivables										201,300,000		88,600,000
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount									$ 38,800,000