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Equity and Distributions (Tables) | 12 Months Ended
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Dec. 31, 2017
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) outstanding. The following table summarizes changes in the number of our outstanding units since January 1, 2015:
|  | Common Units (Unrestricted) |  |  | Restricted Common Units |  |  | Total Common Units |
Number of units outstanding at January 1, 2015 |  |  | 1,933,095,027 |  |  |  | 4,229,790 |  |  |  | 1,937,324,817 |
Common units issued in connection with ATM program |  |  | 25,520,424 |  |  |  | -- |  |  |  | 25,520,424 |
Common units issued in connection with DRIP and EUPP |  |  | 12,793,913 |  |  |  | -- |  |  |  | 12,793,913 |
Common units issued in connection with Step 2 of Oiltanking acquisition |  |  | 36,827,517 |  |  |  | -- |  |  |  | 36,827,517 |
Common units issued in connection with the vesting and exercise of unit options |  |  | 396,158 |  |  |  | -- |  |  |  | 396,158 |
Common units issued in connection with the vesting of phantom unit awards |  |  | 618,395 |  |  |  | -- |  |  |  | 618,395 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 2,009,970 |  |  |  | (2,009,970 | ) |  |  | -- |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (259,300 | ) |  |  | (259,300 | )
Cancellation of treasury units acquired in connection with the vesting of equity-based awards |  |  | (683,954 | ) |  |  | -- |  |  |  | (683,954 | )
Other |  |  | 15,054 |  |  |  | -- |  |  |  | 15,054 |
Number of units outstanding at December 31, 2015 |  |  | 2,010,592,504 |  |  |  | 1,960,520 |  |  |  | 2,012,553,024 |
Common units issued in connection with ATM program |  |  | 87,867,037 |  |  |  | -- |  |  |  | 87,867,037 |
Common units issued in connection with DRIP and EUPP |  |  | 16,316,534 |  |  |  | -- |  |  |  | 16,316,534 |
Common units issued in connection with the vesting of phantom unit awards |  |  | 1,761,455 |  |  |  | -- |  |  |  | 1,761,455 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 1,234,502 |  |  |  | (1,234,502 | ) |  |  | -- |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (43,724 | ) |  |  | (43,724 | )
Cancellation of treasury units acquired in connection with the vesting of equity-based awards |  |  | (1,000,619 | ) |  |  | -- |  |  |  | (1,000,619 | )
Other |  |  | 134,707 |  |  |  | -- |  |  |  | 134,707 |
Number of units outstanding at December 31, 2016 |  |  | 2,116,906,120 |  |  |  | 682,294 |  |  |  | 2,117,588,414 |
Common units issued in connection with ATM program |  |  | 21,807,726 |  |  |  | -- |  |  |  | 21,807,726 |
Common units issued in connection with DRIP and EUPP |  |  | 19,046,019 |  |  |  | -- |  |  |  | 19,046,019 |
Common units issued in connection with the vesting of phantom unit awards |  |  | 2,485,580 |  |  |  | -- |  |  |  | 2,485,580 |
Common units issued in connection with the vesting of restricted common unit awards |  |  | 681,044 |  |  |  | (681,044 | ) |  |  | -- |
Forfeiture of restricted common unit awards |  |  | -- |  |  |  | (1,250 | ) |  |  | (1,250 | )
Cancellation of treasury units acquired in connection with the vesting of equity-based awards |  |  | (1,027,798 | ) |  |  | -- |  |  |  | (1,027,798 | )
Common units issued in connection with employee compensation |  |  | 1,176,103 |  |  |  | -- |  |  |  | 1,176,103 |
Other |  |  | 14,685 |  |  |  | -- |  |  |  | 14,685 |
Number of units outstanding at December 31, 2017 |  |  | 2,161,089,479 |  |  |  | -- |  |  |  | 2,161,089,479 |
Components of Accumulated Other Comprehensive Income (Loss) | The following tables present the components of accumulated other comprehensive income (loss) as reported on our Consolidated Balance Sheets at the dates indicated:
|  | Gains (Losses) on Cash Flow Hedges |  |  |  |  |  |  |
|  | Commodity Derivative Instruments |  |  | Interest Rate Derivative Instruments |  |  | Other |  |  | Total |
Balance, December 31, 2015 |  | $ | 56.6 |  |  | $ | (279.5 | ) |  | $ | 3.7 |  |  | $ | (219.2 | )
Other comprehensive income (loss) before reclassifications |  |  | (193.8 | ) |  |  | 42.3 |  |  |  | (0.1 | ) |  |  | (151.6 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | 53.4 |  |  |  | 37.4 |  |  |  | -- |  |  |  | 90.8 |
Total other comprehensive income (loss) |  |  | (140.4 | ) |  |  | 79.7 |  |  |  | (0.1 | ) |  |  | (60.8 | )
Balance, December 31, 2016 |  |  | (83.8 | ) |  |  | (199.8 | ) |  |  | 3.6 |  |  |  | (280.0 | )
Other comprehensive income (loss) before reclassifications |  |  | (38.5 | ) |  |  | (5.7 | ) |  |  | (0.1 | ) |  |  | (44.3 | )
Amounts reclassified from accumulated other comprehensive loss |  |  | 112.2 |  |  |  | 40.4 |  |  |  | -- |  |  |  | 152.6 |
Total other comprehensive income (loss) |  |  | 73.7 |  |  |  | 34.7 |  |  |  | (0.1 | ) |  |  | 108.3 |
Balance, December 31, 2017 |  | $ | (10.1 | ) |  | $ | (165.1 | ) |  | $ | 3.5 |  |  | $ | (171.7 | )
Reclassifications out of Accumulated Other Comprehensive Income (Loss) Into Net Income | The following table presents reclassifications out of accumulated other comprehensive income (loss) into net income during the periods indicated:
|  |  | For the Year Ended December 31, |
| Location |  | 2017 |  |  | 2016 |
Losses (gains) on cash flow hedges: |  |  |  |  |  |  |
Interest rate derivatives | Interest expense |  | $ | 40.4 |  |  | $ | 37.4 |
Commodity derivatives | Revenue |  |  | 111.6 |  |  |  | 53.6 |
Commodity derivatives | Operating costs and expenses |  |  | 0.6 |  |  |  | (0.2 | )
Total |  |  | $ | 152.6 |  |  | $ | 90.8 |
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, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Limited partners of Oiltanking other than EPO |  | $ | -- |  |  | $ | -- |  |  | $ | 7.8 |
Joint venture partners |  |  | 56.3 |  |  |  | 39.9 |  |  |  | 29.4 |
Total |  | $ | 56.3 |  |  | $ | 39.9 |  |  | $ | 37.2 |
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, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Cash distributions paid to noncontrolling interests: |  |  |  |  |  |  |  |  |
Limited partners of Oiltanking other than EPO |  | $ | -- |  |  | $ | -- |  |  | $ | 8.1 |
Joint venture partners |  |  | 49.2 |  |  |  | 47.4 |  |  |  | 39.9 |
Total |  | $ | 49.2 |  |  | $ | 47.4 |  |  | $ | 48.0 |
Cash contributions from noncontrolling interests: |  |  |  |  |  |  |  |  |  |  |  |
Joint venture partners |  | $ | 0.4 |  |  | $ | 20.4 |  |  | $ | 54.0 |
Declared Quarterly Cash Distribution Rates | The following table presents Enterprise’s declared quarterly cash distribution rates per common unit with respect to the quarter 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
2015: |  |  |  |  |
1st Quarter |  | $ | 0.3750 |  | 4/30/2015 | 5/7/2015
2nd Quarter |  | $ | 0.3800 |  | 7/31/2015 | 8/7/2015
3rd Quarter |  | $ | 0.3850 |  | 10/30/2015 | 11/6/2015
4th Quarter |  | $ | 0.3900 |  | 1/29/2016 | 2/5/2016
2016: |  |  |  |  |  |
1st Quarter |  | $ | 0.3950 |  | 4/29/2016 | 5/6/2016
2nd Quarter |  | $ | 0.4000 |  | 7/29/2016 | 8/5/2016
3rd Quarter |  | $ | 0.4050 |  | 10/31/2016 | 11/7/2016
4th Quarter |  | $ | 0.4100 |  | 1/31/2017 | 2/7/2017
2017: |  |  |  |  |  |
1st Quarter |  | $ | 0.4150 |  | 4/28/2017 | 5/8/2017
2nd Quarter |  | $ | 0.4200 |  | 7/31/2017 | 8/7/2017
3rd Quarter |  | $ | 0.4225 |  | 10/31/2017 | 11/7/2017
4th Quarter |  | $ | 0.4250 |  | 1/31/2018 | 2/7/2018

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