Finance Receivables (Changes In The Allowance For Finance Credit Losses On Finance Receivables) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009	Dec. 31, 2007
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 173,589,000		$ 150,082,000		$ 40,068,000	$ 30,295,000
Allowance related to newly consolidated finance receivables			49,424,000	[1]
Provision for finance credit losses	17,031,000		93,118,000		169,206,000
Charge-offs	(119,496,000)
Recoveries	54,325,000
Charge-offs, net of recoveries			(119,035,000)		(59,192,000)
Balance, end of period	125,449,000	[2]	173,589,000		150,082,000	30,295,000
Allowance for finance receivables held by VIEs	66,000,000
Retail [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	157,791,000
Provision for finance credit losses	23,054,000
Charge-offs	(118,993,000)
Recoveries	54,260,000
Balance, end of period	116,112,000	[2]
Wholesale [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	15,798,000
Provision for finance credit losses	(6,023,000)
Charge-offs	(503,000)
Recoveries	65,000
Balance, end of period	$ 9,337,000	[2]

[1] As part of the required consolidation of formerly off balance-sheet securitization trusts, the Company consolidated a $49.4 million allowance for credit losses related to the newly consolidated finance receivables.

[2] Included in the $116.1 million retail allowance for credit losses on finance receivables is $66.0 million related to finance receivables held by VIEs.