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v3.21.2

Net Income/(Loss) Per Common Unit (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Basic and Diluted Net Income/(Loss) per Common Unit |  |  |  |
Net income/(loss) attributable to PAA | $ (220) | $ 142 | $ 202 | $ (2,705)
Distributions to participating securities | 0 | (1) | 0 | (1)
Net income/(loss) allocated to common unitholders - Diluted | (269) | 92 | 103 | (2,805)
Net income/(loss) allocated to common unitholders - Basic | $ (269) | $ 92 | $ 103 | $ (2,805)
Weighted average |  |  |  |
Net Income/(Loss) Per Common Unit |  |  |  |
Dilutive LTIP awards (units) |  | 0.1 | 0.4 |
Equity-indexed Compensation Plan Award | Weighted average |  |  |  |
Net Income/(Loss) Per Common Unit |  |  |  |
Antidilutive securities excluded from computation of net income/(loss) per common unit (units) | 0.7 |  |  | 0.5
Series A Preferred Units |  |  |  |
Basic and Diluted Net Income/(Loss) per Common Unit |  |  |  |
Distributions to preferred unitholders | $ (37) | $ (37) | $ (74) | $ (74)
Series A Preferred Units | Weighted average |  |  |  |
Net Income/(Loss) Per Common Unit |  |  |  |
Antidilutive securities excluded from computation of net income/(loss) per common unit (units) | 71.0 | 71.0 | 71.0 | 71.0
Series B Preferred Units |  |  |  |
Basic and Diluted Net Income/(Loss) per Common Unit |  |  |  |
Distributions to preferred unitholders | $ (12) | $ (12) | $ (25) | $ (25)
Common Units |  |  |  |
Basic and Diluted Net Income/(Loss) per Common Unit |  |  |  |
Basic weighted average common units outstanding (units) | 720.0 | 728.0 | 721.0 | 728.0
Diluted weighted average common units outstanding (units) | 720.0 | 728.0 | 721.0 | 728.0
Basic net income/(loss) per common unit (usd per unit) | $ (0.37) | $ 0.13 | $ 0.14 | $ (3.85)
Diluted net income/(loss) per common unit (usd per unit) | $ (0.37) | $ 0.13 | $ 0.14 | $ (3.85)

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