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Price Risk Management Future Year Net Unrealized Gain/Loss Recorded at Balance Sheet Date Expected to Become Realized (Details) $ in Millions | Sep. 30, 2017 USD ($)
--- | ---
Electricity [Member] |
Commodity contracts: |
2017 | $ 0
2018 | 9
2019 | 8
2020 | 8
2021 | 8
Thereafter | 107
Total | 140
Natural Gas [Member] |
Commodity contracts: |
2017 | 14
2018 | 22
2019 | 9
2020 | 4
2021 | 0
Thereafter | 0
Total | 49
Net Unrealized Loss [Member] |
Commodity contracts: |
2017 | 14
2018 | 31
2019 | 17
2020 | 12
2021 | 8
Thereafter | 107
Total | $ 189

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- Details
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- Details
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