Condensed Consolidated Statements of Operations and Comprehensive Loss (Parenthetical) (Unaudited) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Mortgage loans	$ 35,333	$ 37,632	$ 70,923	$ 75,251
Interest expense: Short-term debt	81	167	188	285
Interest expense: Long-term debt	31,721	35,018	63,769	71,557
Of Consolidated Trusts [Member]
Mortgage loans	31,613	33,682	63,478	68,003
Interest expense: Short-term debt	2	3	5	5
Interest expense: Long-term debt	$ 27,919	$ 30,043	$ 55,771	$ 61,501