Quarterly report pursuant to Section 13 or 15(d)

Representations and Warranties Obligations and Corporate Guarantees - Liabilities (Details)

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Representations and Warranties Obligations and Corporate Guarantees - Liabilities (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Liability For Representations Warranties And Guarantees [Roll Forward]    
Liability for representations and warranties and corporate guarantees, beginning of year $ 15,858 $ 5,438
Additions for new sales 5 7
Charge-offs (399) (238)
Provision 282 1,013
Liability for representations and warranties and corporate guarantees, December 31 $ 15,746 $ 6,220