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Equity and Distributions (Tables) | 12 Months Ended
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Dec. 31, 2012
Equity and Distributions [Abstract] |
Summary of Changes in Outstanding Units | Pre-Holdings Merger. As discussed in Note 1, our historical comparative financial statements for periods prior to the November 22, 2010 effective date of the Holdings Merger are the consolidated financial statements of Holdings. Changes in Holdings' limited partners' capital account for the period January 1, 2010 to November 22, 2010 are presented on our Statements of Consolidated Equity. The following table summarizes changes in the number of Holdings' limited partner units outstanding during 2010:
|  | Holdings Units |
Balance, December 31, 2009 |  |  | 139,191,640 |
Common units issued upon vesting of restricted units |  |  | 3,424 |
Balance, November 21, 2010 |  |  | 139,195,064 |
The following table summarizes changes in the number of Enterprise's outstanding units since December 31, 2009:
|  | Common Units (Unrestricted) |  |  | Restricted Common Units |  |  | Total Common Units |
Balance, December 31, 2009 |  |  | 603,202,828 |  |  |  | 2,720,882 |  |  |  | 605,923,710 |
Common units issued in connection with underwritten offerings |  |  | 37,950,000 |  |  |  | -- |  |  |  | 37,950,000 |
Common units issued in connection with the Holdings Merger |  |  | 208,813,454 |  |  |  | -- |  |  |  | 208,813,454 |
Common units cancelled in connection with the Holdings Merger |  |  | (21,563,177 | ) |  |  | -- |  |  |  | (21,563,177 | )
Common units issued in connection with DRIP and EUPP |  |  | 8,378,053 |  |  |  | -- |  |  |  | 8,378,053 |
Common units issued in connection with acquisition of marine shipyard assets |  |  | 2,329,639 |  |  |  | -- |  |  |  | 2,329,639 |
Common units issued to EPCO in exchange for equity interest in trucking business |  |  | 523,306 |  |  |  | -- |  |  |  | 523,306 |
Common units issued in connection with the vesting of unit options |  |  | 193,030 |  |  |  | -- |  |  |  | 193,030 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 383,628 |  |  |  | (383,628 | ) |  |  | -- |
Restricted common units issued |  |  | -- |  |  |  | 1,393,925 |  |  |  | 1,393,925 |
Forfeiture of restricted common units |  |  | -- |  |  |  | (169,565 | ) |  |  | (169,565 | )
Acquisition and cancellation of treasury units in connection with the vesting of equity-based awards |  |  | (103,241 | ) |  |  | -- |  |  |  | (103,241 | )
Other |  |  | 12,438 |  |  |  | -- |  |  |  | 12,438 |
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 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 units issued |  |  | -- |  |  |  | 1,414,630 |  |  |  | 1,414,630 |
Forfeiture of restricted common units |  |  | -- |  |  |  | (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 at-the-market program |  |  | 3,978,545 |  |  |  | -- |  |  |  | 3,978,545 |
Common units issued in connection with 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 units 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 |
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:
|  | December 31, |
|  | 2012 |  |  | 2011 |
Commodity derivative instruments (1) |  | $ | 10.1 |  |  | $ | (21.4 | )
Interest rate derivative instruments (1) |  |  | (383.0 | ) |  |  | (329.0 | )
Foreign currency translation adjustment (2) |  |  | 1.7 |  |  |  | 1.7 |
Pension and postretirement benefit plans |  |  | 0.8 |  |  |  | (1.7 | )
Other |  |  | -- |  |  |  | (1.0 | )
Total |  | $ | (370.4 | ) |  | $ | (351.4 | )
(1) See Note 6 for additional information regarding our derivative instruments. (2) Relates to transactions of a Canadian subsidiary. |
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, |
|  | 2012 |  |  | 2011 |
Joint venture partners (1) |  | $ | 108.3 |  |  | $ | 105.9 |
(1) Represents third party ownership interests in joint ventures that we consolidate, including Tri-States NGL Pipeline L.L.C., Independence Hub LLC, Rio Grande Pipeline Company and Wilprise Pipeline Company LLC. |
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 presented:
|  | For Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Limited partners of Enterprise other than Holdings (prior to Holdings Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 1,000.3 |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  |  | -- |  |  |  | 20.9 |  |  |  | 37.1 |
Joint venture partners |  |  | 8.1 |  |  |  | 20.5 |  |  |  | 25.5 |
Total |  | $ | 8.1 |  |  | $ | 41.4 |  |  | $ | 1,062.9 |
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 presented:
|  | For Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Cash distributions paid to noncontrolling interests: |  |  |  |  |  |  |  |  |
Limited partners of Enterprise (prior to Holdings Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 1,395.1 |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  |  | -- |  |  |  | 32.9 |  |  |  | 42.9 |
Joint venture partners |  |  | 13.3 |  |  |  | 27.8 |  |  |  | 29.8 |
Total |  | $ | 13.3 |  |  | $ | 60.7 |  |  | $ | 1,467.8 |
Cash contributions from noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |
Limited partners of Enterprise (prior to Holdings Merger) |  | $ | -- |  |  | $ | -- |  |  | $ | 1,092.0 |
Limited partners of Duncan Energy Partners other than EPO and its subsidiaries (prior to Duncan Merger) |  |  | -- |  |  |  | 2.6 |  |  |  | 1.7 |
Joint venture partners |  |  | 6.6 |  |  |  | 5.9 |  |  |  | 2.8 |
Total |  | $ | 6.6 |  |  | $ | 8.5 |  |  | $ | 1,096.5 |
Declared Quarterly Cash Distribution Rates | The following table presents Enterprise's declared quarterly cash distribution rates per common unit with respect to 2011 and 2012 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
2011 |  |  |  |  |
1st Quarter |  | $ | 0.5975 |  | 04/29/11 | 05/06/11
2nd Quarter |  | $ | 0.6050 |  | 07/29/11 | 08/10/11
3rd Quarter |  | $ | 0.6125 |  | 10/31/11 | 11/09/11
4th Quarter |  | $ | 0.6200 |  | 01/31/12 | 02/09/12
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

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