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Derivative Instruments (Tables) | 6 Months Ended
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Jun. 30, 2023
Derivative Instruments |
Schedule of derivative assets financial position | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, 2023
​ | ​ | Derivative Assets | ​ | Derivative Liabilities | ​ | ​ | ​
(in millions) |  | Short-Term1 |  | Short-Term |  | Net Assets
Commodity derivative contracts |  | ​ |  |  | ​ |  |  | ​ |
Gross amounts recognized | ​ | $ | 24 | ​ | $ | 63 | ​ | $ | (39)
Gross amounts offset in the consolidated balance sheets | ​ |  | (11) | ​ | ​ | (11) | ​ |  | —
Cash collateral posted | ​ |  | — | ​ |  | (52) | ​ |  | 52
Net amounts presented in the consolidated balance sheets | ​ | $ | 13 | ​ | $ | — | ​ | $ | 13
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2022
​ | ​ | Derivative Assets | ​ | Derivative Liabilities | ​ | ​ | ​
(in millions) |  | Short-Term1 |  | Short-Term2 |  | Net Assets
Commodity derivative contracts |  | ​ |  |  | ​ |  |  | ​ |
Gross amounts recognized | ​ | $ | 459 | ​ | $ | 120 | ​ | $ | 339
Gross amounts offset in the consolidated balance sheets | ​ |  | (119) | ​ |  | (119) | ​ |  | —
Cash collateral received | ​ |  | (99) | ​ |  | — | ​ |  | (99)
Net amounts presented in the consolidated balance sheets | ​ | $ | 241 | ​ | $ | 1 | ​ | $ | 240
1 | Included in "Other current assets" on SCE's consolidated balance sheets.
2 | Included in "Other current liabilities" on SCE's consolidated balance sheets.
Schedule of gains/(losses) of SCE's economic hedging activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Three months ended June 30, | ​ | Six months ended June 30,
(in millions) |  | ​ | 2023 | ​ | ​ | 2022 |  | 2023 | ​ | 2022
Realized | ​ | $ | (7) | ​ | $ | 129 | ​ | $ | 109 | ​ | $ | 110
Unrealized | ​ |  | (114) | ​ |  | (88) | ​ |  | (378) | ​ |  | (35)
Schedule of notional volumes of derivatives | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Unit of | ​ | Economic Hedges
Commodity |  | Measure |  | June 30, 2023 |  | December 31, 2022
Electricity options, swaps and forwards |  | Gigawatt hours |  | 2,364 |  | 1,022
Natural gas options, swaps and forwards |  | Billion cubic feet |  | 45 |  | 42
Congestion revenue rights |  | Gigawatt hours |  | 24,290 |  | 44,028

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