Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net	$ 268	[1]	$ 242	[1]
Mortgage servicing rights [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net	194		227
Purchased credit card relationships [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net	63
Other Intangible Assets [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net	$ 11		$ 15

[1] The following table summarizes assets and liabilities related to variable interest entities ("VIEs") as of June 30, 2012 and December 31, 2011 which are consolidated on our balance sheet. Assets and liabilities exclude intercompany balances that eliminate in consolidation.