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Earnings Per Unit (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
BASIC EARNINGS PER COMMON UNIT        
Net income attributable to common unitholders $ 1,405 $ 1,253 $ 2,861 $ 2,643
Earnings allocated to phantom unit awards [1] (13) (11) (27) (24)
Net income allocated to common unitholders $ 1,392 $ 1,242 $ 2,834 $ 2,619
Basic weighted-average number of common units outstanding (in units) 2,171 2,174 2,171 2,173
Basic earnings per common unit (in dollars per unit) $ 0.64 $ 0.57 $ 1.31 $ 1.21
DILUTED EARNINGS PER COMMON UNIT        
Net income attributable to common unitholders $ 1,405 $ 1,253 $ 2,861 $ 2,643
Net income attributable to preferred units 1 1 2 2
Net income attributable to limited partners $ 1,406 $ 1,254 $ 2,863 $ 2,645
Diluted weighted-average number of units outstanding:        
Distribution-bearing common units (in units) 2,171 2,174 2,171 2,173
Phantom units (in units) [2] 21 20 21 20
Preferred units (in units) [2] 2 2 2 2
Total (in units) 2,194 2,196 2,194 2,195
Diluted earnings per common unit (in dollars per unit) $ 0.64 $ 0.57 $ 1.3 $ 1.2
[1] Phantom units are considered participating securities for purposes of computing basic earnings per unit. See Note 12 for information regarding phantom units.
[2] We use the “if-converted method” to determine the potential dilutive effect of the vesting of phantom unit awards and the conversion of preferred units outstanding.  See Note 12 for information regarding phantom unit awards.  See Note 8 for information regarding preferred units.