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Equity and Distributions (Tables) | 12 Months Ended
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Dec. 31, 2013
Equity and Distributions [Abstract] |
Summary of Changes in Outstanding Units | Partners' equity reflects the various classes of limited partner interests (i.e., common units, including restricted common units, and Class B units) that we have outstanding. The following table summarizes changes in the number of Enterprise's outstanding units since December 31, 2010:
|  | Common Units (Unrestricted) |  |  | Restricted Common Units |  |  | Total Common Units |
Balance, December 31, 2010 |  |  | 840,119,958 |  |  |  | 3,561,614 |  |  |  | 843,681,572 |
Common units issued in connection with underwritten offering |  |  | 10,350,000 |  |  |  | -- |  |  |  | 10,350,000 |
Common units issued in connection with Duncan Merger |  |  | 24,277,310 |  |  |  | -- |  |  |  | 24,277,310 |
Common units issued in connection with our DRIP and EUPP |  |  | 2,337,904 |  |  |  | -- |  |  |  | 2,337,904 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 924,108 |  |  |  | (924,108 | ) |  |  | -- |
Restricted common unit awards issued |  |  | -- |  |  |  | 1,414,630 |  |  |  | 1,414,630 |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (183,920 | ) |  |  | (183,920 | )
Acquisition and cancellation of treasury units in connection with the vesting of equity-based awards |  |  | (255,276 | ) |  |  | -- |  |  |  | (255,276 | )
Other |  |  | (1,802 | ) |  |  | -- |  |  |  | (1,802 | )
Balance, December 31, 2011 |  |  | 877,752,202 |  |  |  | 3,868,216 |  |  |  | 881,620,418 |
Common units issued in connection with underwritten offering |  |  | 9,200,000 |  |  |  | -- |  |  |  | 9,200,000 |
Common units issued in connection with our at-the-market program |  |  | 3,978,545 |  |  |  | -- |  |  |  | 3,978,545 |
Common units issued in connection with our DRIP and EUPP |  |  | 2,814,660 |  |  |  | -- |  |  |  | 2,814,660 |
Common units issued in connection with the vesting of unit options |  |  | 213,914 |  |  |  | -- |  |  |  | 213,914 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 1,316,603 |  |  |  | (1,316,603 | ) |  |  | -- |
Common units issued in connection with the vesting of other types of equity-based awards |  |  | 52,168 |  |  |  | -- |  |  |  | 52,168 |
Restricted common unit awards issued |  |  | -- |  |  |  | 1,588,738 |  |  |  | 1,588,738 |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (246,865 | ) |  |  | (246,865 | )
Acquisition and cancellation of treasury units in connection with the vesting of equity-based awards |  |  | (408,241 | ) |  |  | -- |  |  |  | (408,241 | )
Balance, December 31, 2012 |  |  | 894,919,851 |  |  |  | 3,893,486 |  |  |  | 898,813,337 |
Common units issued in connection with underwritten offering |  |  | 18,400,000 |  |  |  | -- |  |  |  | 18,400,000 |
Common units issued in connection with our at-the-market program |  |  | 7,624,689 |  |  |  | -- |  |  |  | 7,624,689 |
Common units issued in connection with our DRIP and EUPP |  |  | 5,154,127 |  |  |  | -- |  |  |  | 5,154,127 |
Common units issued in connection with the vesting of unit options |  |  | 200,882 |  |  |  | -- |  |  |  | 200,882 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 1,885,348 |  |  |  | (1,885,348 | ) |  |  | -- |
Conversion and reclassification of Class B units to common units |  |  | 4,520,431 |  |  |  | -- |  |  |  | 4,520,431 |
Restricted common unit awards issued |  |  | -- |  |  |  | 1,774,526 |  |  |  | 1,774,526 |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (172,057 | ) |  |  | (172,057 | )
Acquisition and cancellation of treasury units in connection with the vesting of equity-based awards |  |  | (630,927 | ) |  |  | -- |  |  |  | (630,927 | )
Balance, December 31, 2013 |  |  | 932,074,401 |  |  |  | 3,610,607 |  |  |  | 935,685,008 |
Components of Accumulated Other Comprehensive Income (Loss) | The following table presents the components of accumulated other comprehensive income (loss) as reported on our Consolidated Balance Sheets at the dates indicated:
|  | Gains and Losses on Cash Flow Hedges |  |  |  |  |  |  |  |  |  |
|  | Commodity Derivative Instruments |  |  | Interest Rate Derivative Instruments |  |  | Foreign Currency Translation Adjustment |  |  | Postretirement Benefit Plans |  |  | Total |
Balance, December 31, 2012 |  | $ | 10.1 |  |  | $ | (383.0 | ) |  | $ | 1.7 |  |  | $ | 0.8 |  |  | $ | (370.4 | )
Other comprehensive income before reclassifications |  |  | (46.9 | ) |  |  | 6.6 |  |  |  | -- |  |  |  | 0.4 |  |  |  | (39.9 | )
Amounts reclassified from accumulated other comprehensive income |  |  | 22.1 |  |  |  | 29.2 |  |  |  | -- |  |  |  | -- |  |  |  | 51.3 |
Total other comprehensive income |  |  | (24.8 | ) |  |  | 35.8 |  |  |  | -- |  |  |  | 0.4 |  |  |  | 11.4 |
Balance, December 31, 2013 |  | $ | (14.7 | ) |  | $ | (347.2 | ) |  | $ | 1.7 |  |  | $ | 1.2 |  |  | $ | (359.0 | )
|  | Gains and Losses on Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Commodity Derivative Instruments |  |  | Interest Rate Derivative Instruments |  |  | Foreign Currency Translation Adjustment |  |  | Postretirement Benefit Plans |  |  | Other |  |  | Total |
Balance, December 31, 2011 |  | $ | (21.4 | ) |  | $ | (329.0 | ) |  | $ | 1.7 |  |  | $ | (1.7 | ) |  | $ | (1.0 | ) |  | $ | (351.4 | )
Other comprehensive income before reclassifications |  |  | 17.3 |  |  |  | (70.2 | ) |  |  | -- |  |  |  | 2.6 |  |  |  | -- |  |  |  | (50.3 | )
Amounts reclassified from accumulated other comprehensive income |  |  | 14.2 |  |  |  | 16.2 |  |  |  | -- |  |  |  | (0.1 | ) |  |  | 1.0 |  |  |  | 31.3 |
Total other comprehensive income |  |  | 31.5 |  |  |  | (54.0 | ) |  |  | -- |  |  |  | 2.5 |  |  |  | 1.0 |  |  |  | (19.0 | )
Balance, December 31, 2012 |  | $ | 10.1 |  |  | $ | (383.0 | ) |  | $ | 1.7 |  |  | $ | 0.8 |  |  | $ | -- |  |  | $ | (370.4 | )
The following table presents reclassifications out of accumulated other comprehensive income (loss) into net income during the year ended December 31, 2013:
|  | For the Year Ended December 31, |
| Location | 2013 |  | 2012 |
Losses (gains) on cash flow hedges: |  |  |  |  |
Interest rate derivatives | Interest expense |  | $ | 29.2 |  |  | $ | 16.2 |
Commodity derivatives | Revenue |  |  | 22.4 |  |  |  | (10.1 | )
Commodity derivatives | Operating costs and expenses |  |  | (0.3 | ) |  |  | 24.3 |
Total |  |  | $ | 51.3 |  |  | $ | 30.4 |
Components of Noncontrolling Interests | The following table presents additional information regarding noncontrolling interests as presented on our Consolidated Balance Sheets at the dates indicated:
| December 31, |
| 2013 |  | 2012 |
Joint venture partners |  | $ | 225.6 |  |  | $ | 108.3 |
Components of Net Income Attributable to Noncontrolling Interests | The following table presents the components of net income attributable to noncontrolling interests as presented on our Statements of Consolidated Operations for the periods indicated:
| For the Year Ended December 31, |
| 2013 |  | 2012 |  | 2011 |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 20.9 |
Joint venture partners |  |  | 10.2 |  |  |  | 8.1 |  |  |  | 20.5 |
Total |  | $ | 10.2 |  |  | $ | 8.1 |  |  | $ | 41.4 |
Cash Distributions Paid to and Cash Contributions Received From Noncontrolling Interests | The following table presents cash distributions paid to and cash contributions received from noncontrolling interests as presented on our Statements of Consolidated Cash Flows and Statements of Consolidated Equity for the periods indicated:
|  | For the Year Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Cash distributions paid to noncontrolling interests: |  |  |  |  |  |  |  |  |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 32.9 |
Joint venture partners |  |  | 8.9 |  |  |  | 13.3 |  |  |  | 27.8 |
Total |  | $ | 8.9 |  |  | $ | 13.3 |  |  | $ | 60.7 |
Cash contributions from noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 2.6 |
Joint venture partners |  |  | 115.4 |  |  |  | 6.6 |  |  |  | 5.9 |
Total |  | $ | 115.4 |  |  | $ | 6.6 |  |  | $ | 8.5 |
Declared Quarterly Cash Distribution Rates | The following table presents Enterprise's declared quarterly cash distribution rates per common unit with respect to 2012 and 2013 and the related record and payment dates. The quarterly cash distribution rates per common unit correspond to the fiscal quarters indicated. Actual cash distributions are paid by Enterprise within 45 days after the end of each fiscal quarter.
|  | Distribution Per Common Unit |  | Record Date | Payment Date
2012 |  |  |  |  |
1st Quarter |  | $ | 0.6275 |  | 04/30/12 | 05/09/12
2nd Quarter |  | $ | 0.6350 |  | 07/31/12 | 08/08/12
3rd Quarter |  | $ | 0.6500 |  | 10/31/12 | 11/08/12
4th Quarter |  | $ | 0.6600 |  | 01/31/13 | 02/07/13
2013 |  |  |  |  |  |
1st Quarter |  | $ | 0.6700 |  | 04/30/13 | 05/07/13
2nd Quarter |  | $ | 0.6800 |  | 07/31/13 | 08/07/13
3rd Quarter |  | $ | 0.6900 |  | 10/31/13 | 11/07/13
4th Quarter |  | $ | 0.7000 |  | 01/31/14 | 02/07/14

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