v3.5.0.2

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Quarterly Financial Data |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total revenues | $ 292 |  | $ 282 |  | $ 275 |  | $ 263 |  | $ 190 |  | $ 150 |  | $ 133 |  | $ 127 |  | $ 1,112 | [1] | $ 600 | [1] | $ 313 | [1]
Operating and maintenance expenses | 132 |  | 113 |  | 111 |  | 99 |  | 108 |  | 78 |  | 68 |  | 59 |  | 455 | [1] | 313 | [1] | 188 | [1]
Operating income | 102 |  | 105 |  | 104 |  | 103 |  | 30 |  | 55 |  | 42 |  | 54 |  | 414 | [1] | 181 | [1] | 57 | [1]
Net earnings (loss) | 64 |  | 70 |  | 67 |  | 69 |  | (15) |  | 27 |  | 25 |  | 36 |  | 270 | [1] | 73 | [1] | 18 | [1]
Limited partners’ interest in net earnings (loss) | $ 46 |  | $ 53 |  | $ 50 |  | $ 50 |  | $ (25) |  | $ 20 |  | $ 26 |  | $ 35 |  | $ 199 | [1] | $ 56 | [1] | $ 68 | [1]
Net earnings (loss) per limited partner unit: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common - basic (dollars per unit) | $ 0.49 | [2] | $ 0.62 | [2] | $ 0.60 | [2] | $ 0.63 | [2] | $ (0.34) | [2] | $ 0.33 | [2] | $ 0.45 | [2] | $ 0.64 | [2] | $ 2.33 | [2] | $ 0.96 | [2] | $ 1.48 |
Common - diluted (dollars per unit) | $ 0.49 | [2] | $ 0.62 | [2] | $ 0.60 | [2] | $ 0.63 | [2] | (0.34) | [2] | 0.33 | [2] | 0.45 | [2] | 0.64 | [2] | 2.33 | [2] | 0.96 | [2] | 1.47 |
Subordinated - basic and diluted (dollars per unit) |  |  |  |  |  |  |  |  | $ 0.00 | [2] | $ 0.00 | [2] | $ 0.45 | [2] | $ 0.64 | [2] | $ 0.00 |  | $ 0.62 | [2] | $ 1.35 |
[1] | All periods include the historical results of the Predecessors. See Notes 1 and 2 for further discussion.
[2] | The sum of four quarters may not equal annual results due to rounding or the quarterly number of shares outstanding.

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- Definition The amount of net income or loss for the period per each subordinated unit held by an affiliate limited partner in instances when basic and diluted earnings per unit are the same amount and aggregated on the face of the financial statements. Basic earnings per unit is the amount of net income or loss for the period per unit outstanding during the reporting period. Diluted earnings per unit includes the amount of net income or loss for the period available to each unit that would have been outstanding assuming the issuance of units for all dilutive potential units outstanding during the period. + References No definition available. + Details
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