Loans Held-For-Sale, Net (Schedule Of Loans Held-For-Sale) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	$ 63	$ 2,490
Loans Held-for-sale, Commercial and Industrial	19	86
Total loans held-for-sale	82	2,576
First Mortgage [Member]
Loans Receivable Held-for-sale [Line Items]
Mortgage loans held-for-sale	63	2,490
Loans Held For Sale Member
Loans Receivable Held-for-sale [Line Items]
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 56	$ 26