Annual report pursuant to Section 13 and 15(d)

Mortgage Servicing Rights (Details)

v2.4.0.6
Mortgage Servicing Rights (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Activity for Residential First Mortgage MSRs      
Balance, January 1   $ 7,378,000,000 $ 14,900,000,000
Additions   374,000,000 1,656,000,000
Sales   (122,000,000) (896,000,000)
Impact Of Customer Payments   (1,484,000,000) [1] (2,621,000,000) [1]
Impact Of Changes In Interest Rates And Other Market Factors   (867,000,000) [2] (4,890,000,000) [2]
Model And Other Cash Flow Assumption Changes:      
Projected Cash Flows, Primarily Due to Increases in Cost to Service Loans   443,000,000 [3],[4] (2,306,000,000) [3],[4]
Impact of Changes in the Home Price Index   (112,000,000) [3] 428,000,000 [3]
Impact of Changes in the Prepayment Model   435,000,000 [3] 1,818,000,000 [3]
Other Model Changes   (329,000,000) [3] (711,000,000) [3]
Balance, December 31 5,716,000,000 5,716,000,000 7,378,000,000
Mortgage Loans Serviced For Investors (in billions) 1,045,000,000,000 1,045,000,000,000 1,379,000,000,000
Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs 342,000,000    
Commercial and Residential Reverse Mortgage [Member]
      
Servicing Assets at Fair Value [Line Items]      
Servicing Asset at Amortized Cost $ 135,000,000 $ 135,000,000 $ 132,000,000
[1] Represents the change in the market value of the MSR asset due to the impact of customer payments received during the period.
[2] These amounts reflect the changes in modeled MSR fair value primarily due to observed changes in interest rates, volatility, spreads and the shape of the forward swap curve.
[3] These amounts reflect periodic adjustments to the valuation model as well as changes in certain cash flow assumptions such as cost to service and ancillary income per loan.
[4] As part of the MSR fair value estimation process, the Corporation increased its estimated cost to service during 2011 due to higher costs expected from foreclosure delays and procedures, the implementation of various loan modification programs, and compliance with new banking regulations. During 2012, the Corporation has continued to refine its estimates of cost to service and ancillary income to be consistent with market participants’ view which resulted in a decrease to the estimated cost to service.