v3.26.1
Net Income Per Common Unit (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jan. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Basic and Diluted Net Income per Common Unit            
Income from continuing operations, net of tax   $ 276 $ 227   $ 608 $ 607
Net income attributable to noncontrolling interests   (95) (87)   (173) (160)
Net income from continuing operations attributable to PAA   181 140   435 447
Amounts allocated to participating securities   (9) (7)   (11) (9)
Other   1 1   2 2
Series A Preferred Units            
Basic and Diluted Net Income per Common Unit            
Distributions to preferred unitholders   (36) (36)   (72) (75)
Impact from repurchase of Series A preferred units   0 0   0 (43)
Repurchase and cancellation (in units) 12,700,000     12,678,560    
Series B Preferred Units            
Basic and Diluted Net Income per Common Unit            
Distributions to preferred unitholders   (16) (18)   (32) (35)
Common Units            
Basic and Diluted Net Income per Common Unit            
Net income from continuing operations allocated to common unitholders - basic   121 80   322 287
Net income from continuing operations allocated to common unitholders - diluted   121 80   322 287
Net income from discontinued operations allocated to common unitholders - basic   1,649 70   1,548 206
Net income from discontinued operations allocated to common unitholders - diluted   1,649 70   1,548 206
Net income allocated to common unitholders - basic   1,770 150   1,870 493
Net income allocated to common unitholders - diluted   $ 1,770 $ 150   $ 1,870 $ 493
Basic weighted average common units outstanding (units)   706,000,000 703,000,000   706,000,000 704,000,000
Diluted weighted average common units outstanding (units)   706,000,000 703,000,000   706,000,000 704,000,000
Basic net income per common unit: continuing operations (usd per unit)   $ 0.17 $ 0.11   $ 0.46 $ 0.41
Diluted net income per common unit: continuing operations (usd per unit)   0.17 0.11   0.46 0.41
Basic net income per common unit: discontinuing operations (usd per unit)   2.34 0.10   2.19 0.29
Diluted net income per common unit: discontinuing operations (usd per unit)   2.34 0.10   2.19 0.29
Basic net income per common unit (usd per unit)   2.51 0.21   2.65 0.70
Diluted net income per common unit (usd per unit)   $ 2.51 $ 0.21   $ 2.65 $ 0.70
Repurchase and cancellation (in units)     476,695      
Weighted Average | Series A Preferred Units            
Basic and Diluted Net Income Per Common Unit [Line Items]            
Antidilutive securities excluded from computation of net income per common unit (units)   58,000,000 58,000,000   58,000,000 61,000,000