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v3.19.3.a.u2

Net Income Per Common Unit (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Basic Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Net income attributable to PAA | $ 306 | $ 449 | $ 446 | $ 970 | $ 1,117 | $ 710 | $ 100 | $ 288 | $ 2,171 | $ 2,216 | $ 856
Distributions to participating securities |  |  |  |  |  |  |  |  | (3) | (3) | (2)
Other |  |  |  |  |  |  |  |  | (3) | (6) | (16)
Net income allocated to common unitholders |  |  |  |  |  |  |  |  | 1,967 | 2,009 | 685
Diluted Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Net income attributable to PAA | $ 306 | $ 449 | $ 446 | $ 970 | $ 1,117 | $ 710 | $ 100 | $ 288 | 2,171 | 2,216 | 856
Distributions to participating securities |  |  |  |  |  |  |  |  | (3) | (3) | (2)
Other |  |  |  |  |  |  |  |  |  |  | (16)
Net income allocated to common unitholders |  |  |  |  |  |  |  |  | 2,119 | 2,164 | 685
Series A Preferred Units |  |  |  |  |  |  |  |  |  |  |
Basic Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Distributions to preferred unitholders |  |  |  |  |  |  |  |  | (149) | (149) | (142)
Diluted Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Distributions to preferred unitholders |  |  |  |  |  |  |  |  |  |  | (142)
Series B Preferred Units |  |  |  |  |  |  |  |  |  |  |
Basic Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Distributions to preferred unitholders |  |  |  |  |  |  |  |  | (49) | (49) | (11)
Diluted Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Distributions to preferred unitholders |  |  |  |  |  |  |  |  | $ (49) | $ (49) | $ (11)
Common Units |  |  |  |  |  |  |  |  |  |  |
Basic Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common units outstanding (in units) |  |  |  |  |  |  |  |  | 727 | 726 | 717
Basic net income per common unit (in dollars per unit) | $ 0.35 | $ 0.55 | $ 0.54 | $ 1.26 | $ 1.46 | $ 0.91 | $ 0.07 | $ 0.33 | $ 2.70 | $ 2.77 | $ 0.96
Diluted Net Income per Common Unit |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common units outstanding (in units) |  |  |  |  |  |  |  |  | 727 | 726 | 717
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |
Series A preferred units (in units) |  |  |  |  |  |  |  |  | 71 | 71 |
Equity-indexed compensation plan awards (in units) |  |  |  |  |  |  |  |  | 2 | 2 | 1
Diluted weighted average common units outstanding (in units) |  |  |  |  |  |  |  |  | 800 | 799 | 718
Diluted net income per common unit (in dollars per unit) | $ 0.35 | $ 0.55 | $ 0.54 | $ 1.20 | $ 1.38 | $ 0.87 | $ 0.07 | $ 0.33 | $ 2.65 | $ 2.71 | $ 0.95

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