Quarterly report pursuant to Section 13 or 15(d)

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

Representations and Warranties Obligations and Corporate Guarantees - Liabilities (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees	Sep. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees	Sep. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees	Sep. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees	Sep. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees Provision for Loan Lease and Other Losses	Sep. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees Provision for Loan Lease and Other Losses	Sep. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees Provision for Loan Lease and Other Losses	Sep. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees Provision for Loan Lease and Other Losses	Sep. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities	Jun. 30, 2014 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities	Dec. 31, 2013 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities	Sep. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities	Jun. 30, 2013 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities	Dec. 31, 2012 Representations and Warranties Obligations and Corporate Guarantees Accrued Liabilities And Other Liabilities
Loss Contingency Accrual [Roll Forward]
Liability for representations and warranties and corporate guarantees, beginning of period													$ 11,948	$ 12,084	$ 13,282	$ 14,116	$ 14,020	$ 19,021
Additions for new sales					2	9	7	31
Net reductions	(112)	(277)	(348)	(1,035)	(305)	(236)	(1,773)	(5,706)
Provision									167	323	432	770
Liability for representations and warranties and corporate guarantees, September 30													$ 11,948	$ 12,084	$ 13,282	$ 14,116	$ 14,020	$ 19,021