XML 20 R78.htm IDEA: XBRL DOCUMENT v2.4.0.8
Intangible Assets - Schedule of Intangible Assets (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets $ 262 $ 295
Mortgage servicing rights [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 207 237
Mortage Servicing Rights - Residential Real Estate [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 205 227
Mortgage Servicing Rights - Commercial Real Estate [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 2 10
Purchased credit card relationships
   
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets 52 54
Favorable lease argeement
   
Finite-Lived Intangible Assets [Line Items]    
Total intangible assets $ 3 $ 4