XML 54 R40.htm IDEA: XBRL DOCUMENT v3.23.3
Net Income Per Common Unit (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Basic and Diluted Net Income per Common Unit        
Net income attributable to PAA $ 203 $ 384 $ 918 $ 774
Amounts allocated to participating securities (1) (2) (8) (4)
Other 1   3  
Net income allocated to common unitholders - Basic 140 333 728 621
Net income allocated to common unitholders - Diluted 140 333 728 621
Series A Preferred Units        
Basic and Diluted Net Income per Common Unit        
Distributions to preferred unitholders $ (44) $ (37) $ (129) $ (112)
Series A Preferred Units | Weighted Average        
Net Income/(Loss) Per Common Unit        
Antidilutive securities excluded from computation of net income per common unit (units) 71 71 71 71
Series B Preferred Units        
Basic and Diluted Net Income per Common Unit        
Distributions to preferred unitholders $ (19) $ (12) $ (56) $ (37)
Common Units        
Basic and Diluted Net Income per Common Unit        
Basic weighted average common units outstanding (units) 700 698 699 702
Diluted weighted average common units outstanding (units) 700 698 699 702
Basic net income per common unit (usd per unit) $ 0.20 $ 0.48 $ 1.04 $ 0.89
Diluted net income per common unit (usd per unit) $ 0.20 $ 0.48 $ 1.04 $ 0.89