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Loan Servicing (Narrative) (Details) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012
Transfers and Servicing of Financial Assets [Abstract] |  |  |  |  |
Serviced sold mortgage loans | $ 1,340,000,000 | $ 1,300,000,000 | $ 1,340,000,000 | $ 1,300,000,000 | $ 1,310,000,000
Serviced sold mortgage loans with recourse | 11,500,000 | 19,100,000 | 11,500,000 | 19,100,000 |
Mortgage Loans Sold with Recourse, Reserve | 670,000 |  | 670,000 |  |
Servicing fees included in other service income | $ 900,000 | $ 900,000 | $ 2,700,000 | $ 2,700,000,000 |

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- Definition Mortgage Loans Sold with Recourse, Reserve + References No definition available. + Details
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- Definition Principal Amount Outstanding On Sold Loans Servicing Retained + References No definition available. + Details
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- Definition Principal Amount Outstanding On Sold Loans Servicing Retained With Recourse + References No definition available. + Details
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- Definition Amount of revenue from servicing real estate mortgages, credit cards, and other financial assets held by others. Includes premiums received in lieu of regular servicing fees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13 (d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Details
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