Consolidated Balance Sheet (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Receivables, collateralizing long-term debt	$ 5,300,000,000	$ 5,900,000,000
Due to affiliate, carried at fair value	447,000,000	436,000,000
Long-term debt, carried at fair value	13,700,000,000	20,800,000,000
Long-term debt, collateralized by receivables	$ 3,300,000,000	$ 3,900,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100	100
Common stock, shares issued	68	66
Series B Preferred Stock
Redeemable preferred stock, shares authorized	1,501,100	1,501,100
Redeemable preferred stock, par value	$ 0.01	$ 0.01
Redeemable preferred stock, shares issued	575,000	575,000
Redeemable preferred stock, shares outstanding	575,000	575,000
Series C Preferred Stock
Redeemable preferred stock, shares authorized	1,000	1,000
Redeemable preferred stock, par value	$ 0.01	$ 0.01
Redeemable preferred stock, shares issued	1,000	1,000
Redeemable preferred stock, shares outstanding	1,000	1,000