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Net Income per Unit (Tables) | 12 Months Ended
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Dec. 31, 2017
Net Income Per Unit [Abstract] |
Schedule of Net Income per Unit, Basic and Diluted | A reconciliation of the numerators and denominators of the basic and diluted per unit computations is as follows:
| Year Ended December 31, 2017 |  | Year Ended December 31, 2016 |  | Year Ended December 31, 2015
| (in millions, except units and per unit amounts)
Income from continuing operations | $ | 326 |  |  | $ | 56 |  |  | $ | 156 |
Less: Net income and comprehensive income attributable to noncontrolling interest | — |  |  | — |  |  | 4 |
Less: Preacquisition income allocated to general partner | — |  |  | — |  |  | 75 |
Income from continuing operations attributable to partners | 326 |  |  | 56 |  |  | 77 |
Less: |  |  |  |  |
Series A Preferred units | 23 |  |  | — |  |  | — |
Incentive distribution rights | 85 |  |  | 81 |  |  | 30 |
Distributions on nonvested phantom unit awards | 6 |  |  | 5 |  |  | 2 |
Limited partners' interest in net income (loss) from continuing operations | $ | 212 |  |  | $ | (30 | ) |  | $ | 45 |
Income (loss) from discontinued operations | $ | (177 | ) |  | $ | (462 | ) |  | $ | 38 |
Less: Preacquisition income allocated to general partner | — |  |  | — |  |  | 28 |
Limited partners' interest in net income (loss) from discontinued operations | $ | (177 | ) |  | $ | (462 | ) |  | $ | 10 |
Weighted average limited partner units outstanding: |  |  |  |  |  |  |  |
Common - basic | 99,270,120 |  |  | 93,575,530 |  |  | 40,253,913 |
Common - equivalents | 458,234 |  |  | 28,305 |  |  | 21,738 |
Common - diluted | 99,728,354 |  |  | 93,603,835 |  |  | 40,275,651 |
Subordinated - (basic and diluted) | — |  |  | — |  |  | 10,010,333 |
Income (loss) from continuing operations per limited partner unit: |  |  |  |  |  |  |  |
Common - basic | $ | 2.13 |  |  | $ | (0.32 | ) |  | $ | 0.91 |
Common - diluted | $ | 2.12 |  |  | $ | (0.32 | ) |  | $ | 0.91 |
Subordinated - basic and diluted (1) | $ | — |  |  | $ | — |  |  | $ | 1.17 |
Income (loss) from discontinued operations per limited partner unit: |  |  |  |  |
Common - basic | $ | (1.78 | ) |  | $ | (4.94 | ) |  | $ | 0.20 |
Common - diluted | $ | (1.78 | ) |  | $ | (4.94 | ) |  | $ | 0.20 |
Subordinated - basic and diluted (1) | $ | — |  |  | $ | — |  |  | $ | 0.23 |
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(1) | The subordination period ended on November 30, 2015, at which time outstanding subordinated units were converted to common units. Distributions and the partners' interest in net income were allocated to the subordinated units through November 30, 2015.

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- Definition Net income per unit. + References No definition available. + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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