XML 78 R63.htm IDEA: XBRL DOCUMENT v3.20.2
Derivatives and Risk Management Activities - Fair Value (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Level 3          
Rollforward of Level 3 Net Asset/(Liability)          
Beginning Balance $ (42) $ (26) $ (51) $ (24)  
Net gains/(losses) for the period included in earnings (9) 4 (1) 21  
Settlements 4 1 5 (10)  
Derivatives entered into during the period   (18)   (26)  
Ending Balance (47) (39) (47) (39)  
Change in unrealized gains/(losses) included in earnings relating to Level 3 derivatives still held at the end of the period (9) $ (14) (1) $ (5)  
Recurring Fair Value Measures          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (87)   (87)   $ 53
Recurring Fair Value Measures | Commodity Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (77)   (77)   130
Recurring Fair Value Measures | Interest Rate Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) 17   17   (44)
Recurring Fair Value Measures | Foreign Currency Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) 0   0   1
Recurring Fair Value Measures | Preferred Distribution Rate Reset Option          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (27)   (27)   (34)
Recurring Fair Value Measures | Level 1          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (81)   (81)   42
Recurring Fair Value Measures | Level 1 | Commodity Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (81)   (81)   42
Recurring Fair Value Measures | Level 2          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) 41   41   62
Recurring Fair Value Measures | Level 2 | Commodity Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) 24   24   105
Recurring Fair Value Measures | Level 2 | Interest Rate Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) 17   17   (44)
Recurring Fair Value Measures | Level 2 | Foreign Currency Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability)         1
Recurring Fair Value Measures | Level 3          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (47)   (47)   (51)
Recurring Fair Value Measures | Level 3 | Commodity Derivatives          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) (20)   (20)   (17)
Recurring Fair Value Measures | Level 3 | Preferred Distribution Rate Reset Option          
Recurring Fair Value Measurements          
Total net derivative asset/(liability) $ (27)   $ (27)   $ (34)