Loans and ACL (Summary of TDRs) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Residential mortgage	$ 24,648	$ 24,272
Total performing TDRs	1,329	1,327
Nonperforming TDRs	193	240
Total TDRs	1,522	1,567
Mortgage TDRs held for investment that are government guaranteed	376	313
Mortgage TDRs held for sale that are government guaranteed	3	2
ALLL attributable to TDRs, excluding government guaranteed	228	281
Performing Restructurings [Member]
Commercial and industrial	77	77
CRE-other	70	67
CRE-residential ADC	19	21
Direct retail lending	187	197
Sales finance	17	19
Revolving credit	48	56
Residential mortgage	785	769
Other lending subsidiaries	$ 126	$ 121

Allowance for loan losses allocated to troubled debt restructurings.

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Reflects the net carrying amount of direct retail loans held in portfolio, after deducting deferred income, but before deducting the allowance for losses on direct retail loans.

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No definition available.

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Other commercial real estate loans consisting largely of office buildings, hotels, warehouses, apartments, rental houses and shopping centers.

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Commercial real estate-residential ADC represents residential acquisition, development and construction loans

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Amount of loans that have been restructured but do not accrue interest

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Reflects the net carrying amount of other lending subsidiaries loans held in portfolio, after deducting deferred income, but before deducting the allowance for losses on specialized lending loans.

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No definition available.

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Restructured mortgage loans held for investment that are government guaranteed

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Restructured mortgage loans held for sale that are government guaranteed

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Reflects the net carrying amount of sales finance loans held in portfolio, after deducting deferred income, but before deducting the allowance for losses on sales finance loans.

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No definition available.

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Amount of loans that continue to accrue interest under the terms of restructurings

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No definition available.

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings.

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Amount before allowance of consumer real estate loans. Includes, but not limited to, construction financing, residential mortgage loans, and home equity lines of credit. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance of credit card loans issued to individuals. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance of loans issued to commercial and industrial institutions. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes real estate loans and loans covered under loss sharing agreements.

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