Income Taxes Deferred Tax Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets and Liabilities [Line Items]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses	$ 795	$ 861
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	463	685
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	208	169
Deferred Tax Assets, Other Comprehensive Loss	153	0
Deferred Tax Assets, Other	131	173
Deferred Tax Assets, Gross	1,750	1,888
Deferred Tax Assets, Valuation Allowance	(102)	(56)
Deferred Tax Assets, Net of Valuation Allowance	1,648	1,832
Deferred Tax Liabilities, Leasing Arrangements	804	786
Deferred Tax Liabilities, Other Comprehensive Income	0	197
Deferred Tax Liabilities, Compensation and Benefits	97	74
Deferred Tax Liabilities, Mortgage Servicing Rights	566	623
Deferred Tax Liabilities Loans	98	72
Deferred Tax Liabilities, Goodwill and Intangible Assets	151	141
Deferred Tax Liabilities, Property, Plant and Equipment	153	196
Deferred Tax Liabilities, Other	53	62
Deferred Tax Liabilities, Gross	1,922	2,151
Deferred Tax Liabilities, Net	$ 274	$ 319