Description Of Business, Basis Of Presentation, And Changes In Significant Accounting Policies ResCap Results of Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	May 14, 2012 ResCap LLC [Member]	Jun. 30, 2011 ResCap LLC [Member]	May 14, 2012 ResCap LLC [Member]	Jun. 30, 2011 ResCap LLC [Member]
ResCap Results of Operations [Line Items]
Total net revenue (loss)	$ 1,710	$ 1,775	$ 3,566	$ 3,327	$ 49	$ 277	$ 476	$ 576
Provision for loan losses	29	50	169	163	1	1	0	7
Noninterest Expense	2,530	1,534	3,880	2,874	128	389	437	632
Income (loss) from continuing operations before income tax expense	(849)	191	(483)	290	(80)	(113)	39	(63)
Income tax expense (benefit) from continuing operations	15	83	79	13	2	0	7	9
Net income (loss) from continuing operations	$ (864)	$ 108	$ (562)	$ 277	$ (82)	$ (113)	$ 32	$ (72)