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Debt (Tables) | 9 Months Ended
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Sep. 30, 2014
Debt Disclosure [Abstract] |
Outstanding letters of credit under committed lines of credit | We had outstanding letters of credit under our committed credit facilities as follows (in millions):
|  |  |  |  | Amounts Outstanding
| Borrowing Capacity |  | Expiration |  | September 30, 2014 |  | December 31, 2013
Letter of credit facilities | $ | 550 |  |  | June 2015 |  | $ | 86 |  |  | $ | 278 |
Revolver | $ | 3,000 |  |  | November 2018 |  | $ | 54 |  |  | $ | 59 |
VLP Revolver | $ | 300 |  |  | December 2018 |  | $ | — |  |  | $ | — |
Canadian Revolver | C$ | 50 |  |  | November 2015 |  | C$ | 10 |  |  | C$ | 10 |

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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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