Risk Management - Schedule of PGE's Assets and Liabilities from Price Risk Management Activities (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Current Assets, Commodity Contracts: | ||
| Electricity | $ 39 | $ 29 |
| Natural gas | 1 | 3 |
| Total current derivative assets | 40 | 32 |
| Noncurrent Assets, Commodity Contracts: [Abstract] | ||
| Electricity | 5 | 1 |
| Natural Gas | 1 | |
| Total noncurrent derivative assets | 6 | 1 |
| Total derivative assets | 46 | 33 |
| Current Liabilities, Commodity Contracts: [Abstract] | ||
| Electricity | 17 | 19 |
| Natural gas | 123 | 139 |
| Total current derivative liabilities | 140 | 158 |
| Noncurrent Liabilities, Commodity Contracts: [Abstract] | ||
| Electricity | 35 | 31 |
| Natural gas | 31 | 25 |
| Total noncurrent derivative liabilities | 66 | 56 |
| Total derivative liabilities | $ 206 | $ 214 |
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of the asset arising from commodity contracts related to electricity which are expected to be settled within a year or normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the asset arising from commodity contracts related to natural gas which are expected to be settled within a year or normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the asset arising from commodity contracts related to electricity which are expected to be settled after a year or beyond the normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the asset arising from commodity contracts related to natural gas which are expected to be settled after a year or beyond the normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the liability arising from commodity contracts related to electricity which are expected to be settled within a year or the normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the liability arising from the commodity contracts related to natural gas which are expected to be settled within a year or normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the liability arising from commodity contracts related to electricity which are expected to be settled after a year or beyond the normal operating cycle, if longer. No definition available.
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- Definition Carrying amount as of the balance sheet date of the liability arising from commodity contracts related to natural gas which are expected to be settled after a year or beyond the normal operating cycle, if longer. No definition available.
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- Definition Commodity contracts: [Abstract] No definition available.
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- Definition Fair valules as of the balance sheet date for all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be settled within one year or the normal operating cycle, if longer. No definition available.
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- Definition Fair values as of the balance sheet date for all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be settled within one year of the normal operating cycle, if longer. No definition available.
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- Definition Current Liabilities, Commodity Contracts: [Abstract] No definition available.
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- Definition Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments. No definition available.
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- Definition Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. No definition available.
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- Definition Noncurrent Assets, Commodity Contracts: [Abstract] No definition available.
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- Definition Fair values as of the balance sheet date for all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be settled after one year or normal operating cycle, if longer. No definition available.
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- Definition Noncurrent Liabilities, Commodity Contracts: [Abstract] No definition available.
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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