Quarterly report pursuant to Section 13 or 15(d)

Representations and Warranties Obligations and Corporate Guarantees - Loan Repurchases (Details)

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Representations and Warranties Obligations and Corporate Guarantees - Loan Repurchases (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
First Lien Mortgages [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance $ 517 $ 668
Cash Paid for Repurchases 408 523
Loss 253 293
Home Equity [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance 15 55
Cash Paid for Repurchases 15 54
Loss 11 53
Obligation to Repurchase Receivables Sold [Member]
   
Guarantor Obligations [Line Items]    
Loss 264 346
Obligation to Repurchase Receivables Sold [Member] | First Lien Mortgages [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance 250 334
Cash Paid for Repurchases 284 363
Loss 129 133
Obligation to Repurchase Receivables Sold [Member] | Home Equity [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance 4 15
Cash Paid for Repurchases 4 15
Loss    14
Indemnification Agreement [Member]
   
Guarantor Obligations [Line Items]    
Cash Paid for Repurchases 423 577
Indemnification Agreement [Member] | First Lien Mortgages [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance 267 334
Cash Paid for Repurchases 124 160
Loss 124 160
Indemnification Agreement [Member] | Home Equity [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance 11 40
Cash Paid for Repurchases 11 39
Loss 11 39
Unpaid Principal Balance Of Loan Guarantees Satisfied [Member]
   
Guarantor Obligations [Line Items]    
Unpaid Principal Balance $ 532 $ 723