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Commitments and Contingent Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract] |
Credit Facilities | The following table provides additional information on the Company’s credit facilities as of September 30, 2013 and December 31, 2012 (dollars in millions):
|  |  |  | Amount Utilized(1) |  |
Facility Capacity |  | Maturity Date |  | September 30, 2013 |  | December 31, 2012 |  | Basis of Fees
$ | 850.0 |  |  | December 2015 |  | $ | 73.9 |  |  | $ | 402.9 |  |  | Senior unsecured long-term debt rating
200.0 |  |  | September 2019 |  | 200.0 |  |  | 200.0 |  |  | Fixed
120.0 |  |  | May 2016 |  | 115.0 |  |  | 100.0 |  |  | Fixed
270.0 |  |  | November 2017 |  | 270.0 |  |  | — |  |  | Fixed
100.0 |  |  | June 2017 |  | 92.2 |  |  | — |  |  | Fixed
52.9 |  |  | November 2013 |  | 52.9 |  |  | — |  |  | Fixed
151.4 |  |  | March 2019 |  | 151.4 |  |  | — |  |  | Fixed
(1) | Represents issued but undrawn letters of credit. There was no cash borrowed for the periods presented.
Commitment Obligations | The following table presents information about these commitments (dollars in millions):
Commitment Period |  | Maximum Potential Obligation
2033 |  | $ | 1,350.0 |
2035 |  | 560.0 |

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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12265-110248 + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph f -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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