Summary of Significant Accounting Principles Summary of Significant Accounting Principles (Details) (Accounting Standards Update 2011-02 [Member], USD $) In Millions |
Sep. 30, 2011 |
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| Financing Receivable, Modifications [Line Items] | |
| New Accounting Pronouncement or Change in Accounting Principle, Loans and Leases Receivable Allowance Effected | $ 41 |
Commercial Portfolio Segment [Member] |
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| Financing Receivable, Modifications [Line Items] | |
| Financing Receivable, Modifications, Recorded Investment | 1,100 |
| New Accounting Pronouncement or Change in Accounting Principle, Loans and Leases Receivable Effected | 519 |
Consumer Portfolio Segment [Member] |
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| Financing Receivable, Modifications [Line Items] | |
| Financing Receivable, Modifications, Recorded Investment | 52 |
| New Accounting Pronouncement or Change in Accounting Principle, Loans and Leases Receivable Effected | $ 8 |
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- Definition Balance of loans and leases receivable allowance effected by new accounting pronoucnement or change in accounting principle.
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- Definition Balance of loans and leases receivable effected by new accounting pronoucnement or change in accounting principle.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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