Quarterly report [Sections 13 or 15(d)]

Net Income per Common Unit (Details)

v3.25.2
Net Income per Common Unit (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jul. 29, 2025
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Net Income   $ 553 $ 641 $ 570 $ 682 $ 1,194 $ 1,252
Declared distributions [1]   511   501   1,021 1,002
Assumed allocation of undistributed net income [2]   $ 42   $ 69   $ 173 $ 250
Weighted average units outstanding   484.0   484.0   484.0 484.0
Basic and diluted net income per unit [3]   $ 0.91   $ 0.95   $ 1.99 $ 2.13
Common Units [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Net Income   $ 542 628 $ 559 668    
Declared distributions [1]   397   392   $ 794 $ 784
Assumed allocation of undistributed net income [2]   42   67   169 245
Assumed allocation of net income   439   459   963 1,029
Common Units [Member] | Subsequent Event [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Distribution Made to Limited Partner, Distributions Declared, Per Unit $ 0.820            
Common Units [Member] | Base Amount [Member] | Subsequent Event [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Distribution Made to Limited Partner, Distributions Declared, Per Unit 0.775            
Common Units [Member] | Variable Amount [Member] | Subsequent Event [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Distribution Made to Limited Partner, Distributions Declared, Per Unit $ 0.045            
General Partner [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Net Income   11 $ 13 11 $ 14    
Declared distributions [1]   10   10   20 20
Assumed allocation of undistributed net income [2]   1   1   3 5
Assumed allocation of net income   11   11   23 25
IDR [Member]              
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]              
Declared distributions [1]   104   99   207 198
Assumed allocation of undistributed net income [2]   0   0   0 0
Assumed allocation of net income   $ 104   $ 99   $ 207 $ 198
[1] Represents distributions declared with respect to earnings of the respective period.
[2] Under our partnership agreement, the IDRs participate in net income only to the extent of the amount of cash distributions actually declared, thereby excluding the IDRs from participating in undistributed net income (loss).
[3] In computing basic and diluted net income per common unit, net income is reduced by the amount of undistributed net income allocated to participating securities other than common units, as required under the two-class method. See Note 11—Net Income per Common Unit.