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Earnings per Common Share (EPS) (Details 1) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Preferred Shares [Line Items] |  |
Securities Issued | 1,600 | 750
Series B |  |
Preferred Shares [Line Items] |  |
Issuance Date | Nov. 10, 2014 |
Securities Issued | 750 |
Depositary Shares Issued | 750,000 |
Aggregate Liquidation Preference | $ 750 |
Fixed dividend rate per annum | 5.20% |
Semi-annual fixed dividend, payment dates | Beginning May 15, 2015 |
Floating dividend rate per annum | 3 month LIBOR+ 3.428% |
Quarterly floating dividend, payment dates | Beginning February 15, 2020 |
Fixed to floating rate, conversion date | Nov. 15, 2019 |
Series C |  |
Preferred Shares [Line Items] |  |
Issuance Date | Mar. 02, 2015 |
Securities Issued | 850 |
Depositary Shares Issued | 850,000 |
Aggregate Liquidation Preference | $ 850 |
Fixed dividend rate per annum | 4.90% |
Semi-annual fixed dividend, payment dates | Beginning September 15, 2015 |
Floating dividend rate per annum | 3 month LIBOR+ 3.285% |
Quarterly floating dividend, payment dates | Beginning June 15, 2020 |
Fixed to floating rate, conversion date | Mar. 15, 2020 |

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- Definition Description of basis of dividend, such as adjustable rate. Excludes percentage rate dividend payments or fixed dollar amounts per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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