Derivatives and Risk Management Activities - Interest Rate Risk Hedging (Details) $ in Millions |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
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Sep. 30, 2025
USD ($)
contract
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Sep. 30, 2025
USD ($)
contract
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Sep. 30, 2024
USD ($)
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| Derivatives and Risk Management Activities | |||
| Proceeds from settlement of interest rate hedging instruments | $ (7) | $ (57) | |
| Derivative Instruments | |||
| Derivatives and Risk Management Activities | |||
| Net gain/(loss) deferred in AOCI | $ (31) | $ (31) | |
| 8 forward starting swaps (30-year), 3.09% | Cash Flow Hedging | |||
| Derivatives and Risk Management Activities | |||
| Term of derivative contract | 30 years | ||
| Number of interest rate derivatives | contract | 8 | 8 | |
| Notional amount of derivatives | $ 200 | $ 200 | |
| Average rate locked (percent) | 3.09% | 3.09% | |
| Interest Rate Swap Terminated | Cash Flow Hedging | |||
| Derivatives and Risk Management Activities | |||
| Derivative, notional amount terminated | $ 200 | $ 200 | |
| Proceeds from settlement of interest rate hedging instruments | $ 7 | ||
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- Definition Derivative, Notional Amount Terminated No definition available.
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- Definition The net cash (paid) received for terminated hedging instruments. No definition available.
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- Definition Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Average fixed interest rate related to the group of interest rate derivatives. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition Number of interest rate derivative instruments held by the entity at the reporting date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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