Quarterly report pursuant to Section 13 or 15(d)

Net Income (Loss) per Common Unit (Details)

v3.20.2
Net Income (Loss) per Common Unit (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Oct. 27, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ (67) $ 406 $ 435 $ 110 $ 232 $ 385 $ 774 $ 727
Declared distributions   346     323     1,024 949
Assumed allocation of undistributed net loss [1]   $ (413)     $ (213)     $ (250) $ (222)
Weighted average units outstanding   414.8     348.6     370.9 348.6
Basic and diluted net income (loss) per unit   $ (0.08)     $ 0.19     $ 1.55 $ 1.38
Common Units [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ (65) 287 307 $ 77 164 272    
Declared distributions   315     217     $ 763 $ 638
Assumed allocation of undistributed net loss [1]   (347)     (151)     (188) (157)
Assumed allocation of net income (loss)   $ (32)     $ 66     $ 575 $ 481
Weighted average units outstanding   414.8     348.6     370.9 348.6
Basic and diluted net income (loss) per unit   $ (0.08)     $ 0.19     $ 1.55 $ 1.38
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 $ 0.650                
Subordinated Units [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ (1) 111 119 $ 30 64 105    
Declared distributions   0     84     $ 174 $ 248
Assumed allocation of undistributed net loss [1]   (58)     (58)     (57) (61)
Assumed allocation of net income (loss)   $ (58)     $ 26     $ 117 $ 187
Weighted average units outstanding   69.2     135.4     113.1 135.4
Basic and diluted net income (loss) per unit   $ (0.84)     $ 0.19     $ 1.03 $ 1.38
General Partner [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Net Income (Loss)   $ (1) $ 8 $ 9 $ 3 $ 4 $ 8    
Declared distributions   6     6     $ 20 $ 19
Assumed allocation of undistributed net loss [1]   (8)     (4)     (5) (4)
Assumed allocation of net income (loss)   (2)     2     15 15
IDR [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Declared distributions   25     16     67 44
Assumed allocation of undistributed net loss [1]   0     0     0 0
Assumed allocation of net income (loss)   $ 25     $ 16     $ 67 $ 44
[1] 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.