Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) per Common Unit (Details)

v3.21.2
Net Income (Loss) per Common Unit (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Oct. 26, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ 381 $ 395 $ 347 $ (67) $ 406 $ 435 $ 1,123 $ 774
Declared distributions   375     346     1,091 1,024
Assumed allocation of undistributed net income (loss) [1]   $ 6     $ (413)     $ 32 $ (250)
Weighted average units outstanding   484.0     414.8     484.0 370.9
Basic and diluted net income (loss) per unit   $ 0.69     $ (0.08)     $ 2.07 $ 1.55
Common Units [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ 373 387 340 $ (65) 287 307    
Declared distributions   329     315     $ 970 $ 763
Assumed allocation of undistributed net income (loss) [1]   6     (347)     31 (188)
Assumed allocation of net income (loss)   $ 335     $ (32)     $ 1,001 $ 575
Weighted average units outstanding   484.0     414.8     484.0 370.9
Basic and diluted net income (loss) per unit   $ 0.69     $ (0.08)     $ 2.07 $ 1.55
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 $ 0.680                
Subordinated Units [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ 0 0 0 $ (1) 111 119    
Declared distributions   0     0     $ 0 $ 174
Assumed allocation of undistributed net income (loss) [1]   0     (58)     0 (57)
Assumed allocation of net income (loss)   $ 0     $ (58)     $ 0 $ 117
Weighted average units outstanding   0.0     69.2     0.0 113.1
Basic and diluted net income (loss) per unit   $ 0     $ (0.84)     $ 0 $ 1.03
General Partner [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ 8 $ 8 $ 7 $ (1) $ 8 $ 9    
Declared distributions   8     6     $ 22 $ 20
Assumed allocation of undistributed net income (loss) [1]   0     (8)     1 (5)
Assumed allocation of net income (loss)   8     (2)     23 15
IDR [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Declared distributions   38     25     99 67
Assumed allocation of undistributed net income (loss) [1]   0     0     0 0
Assumed allocation of net income (loss)   $ 38     $ 25     $ 99 $ 67
[1] Under our partnership agreement, the IDRs participate in net income (loss) only to the extent of the amount of cash distributions actually declared, thereby excluding the IDRs from participating in undistributed net income (loss).