v3.25.1
Net Income Per Common Unit (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Jan. 31, 2025
Mar. 31, 2025
Mar. 31, 2024
Basic and Diluted Net Income per Common Unit      
Net income attributable to PAA   $ 443 $ 266
Amounts allocated to participating securities   (1) (1)
Other   1 1
Net income allocated to common unitholders - Basic   343 203
Net income allocated to common unitholders - Diluted   343 203
Series A Preferred Units      
Basic and Diluted Net Income per Common Unit      
Distributions to preferred unitholders   (39) (44)
Preferred Stock Redemption Premium   $ (43)  
Repurchase and cancellation of common units under the common equity repurchase program (units) 12,700,000 12,678,560  
Series B Preferred Units      
Basic and Diluted Net Income per Common Unit      
Distributions to preferred unitholders   $ (18) $ (19)
Common Units      
Basic and Diluted Net Income per Common Unit      
Basic weighted average common units outstanding (units)   704,000,000 701,000,000
Diluted weighted average common units outstanding (units)   704,000,000 701,000,000
Basic net income per common unit (usd per unit)   $ 0.49 $ 0.29
Diluted net income per common unit (usd per unit)   $ 0.49 $ 0.29
Weighted Average | Series A Preferred Units      
Net Income/(Loss) Per Common Unit      
Antidilutive securities excluded from computation of net income per common unit (units)   63,000,000 71,000,000