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Equity and Distributions (Details) (USD $) In Millions, except Share data, unless otherwise specified | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 31, 2011 | Jun. 30, 2013 Enterprise EF78 LLC [Member] | Dec. 31, 2013 Common units [Member] | Dec. 31, 2012 Common units [Member] | Dec. 31, 2011 Common units [Member] | Dec. 31, 2013 Class B units [Member] | Dec. 31, 2012 Class B units [Member] | Dec. 31, 2013 Treasury Units [Member] | Dec. 31, 2011 Duncan Merger [Member] | Dec. 31, 2011 Duncan Merger [Member] Common units [Member] | Dec. 31, 2009 TEPPCO Merger [Member] Class B units [Member]
Mergers [Line Items] |  |  |  |  |  |  |  |  |  |  |
Units outstanding (in units) |  |  | 935,685,008 | 898,813,337 |  | 0 | 4,520,431 |  |  | 24,036,950 |
Common unit exchange ratio in connection with merger |  |  |  |  |  |  |  |  |  | 1.01 | 1.24
Common units issued in connection with merger (in units) |  |  |  |  |  |  |  |  |  | 24,277,310 | 4,520,431
Equity transferred pursuant to Duncan Merger | $ 0 |  |  |  |  |  |  |  | $ 401.7 |  |
Conversion and reclassification of Class B units to common units (in units) |  |  | 4,520,431 |  |  | 4,520,431 |  |  |  |  |
Treasury Units [Abstract] |  |  |  |  |  |  |  |  |  |  |
Maximum common units authorized for repurchase under a buy-back program (in units) |  |  |  |  |  |  |  | 2,000,000 |  |  |
Maximum remaining common units authorized for repurchase under a buy-back program (in units) |  |  |  |  |  |  |  | 618,400 |  |  |
Total of common units repurchased under a buy-back program (in units) |  |  |  |  |  |  |  | 1,381,600 |  |  |
Conversion of restricted units and similar awards to common units (in units) |  |  |  |  |  |  |  | 1,885,348 |  |  |
Acquisition of treasury units in connection with vesting of equity-based awards (in units) |  |  | 630,927 | 408,241 | 255,276 |  |  | 630,927 |  |  |
Total cost of treasury units |  |  |  |  |  |  |  | 36.9 |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 75.00% |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  | 25.00% |  |  |  |  |  |  |  |  |
Initial contribution from joint venture partner |  | $ 90.2 |  |  |  |  |  |  |  |  |

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