v2.4.0.6
Fair Value Measurements (Schedule Of Fair Value Adjustments Related To Non-Recurring Fair Value Measurements) (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Fair Value Assets And Liabilities Measured On Nonrecurring Basis [Line Items]        
Loans held for sale $ (45) $ (198) $ (101) $ (305)
Foreclosed property, other real estate and equipment $ (19) $ (97) $ (38) $ (137)