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Derivatives and Risk Management Activities - Net Unrealized Gain/(Loss) Recognized in AOCI (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Derivative Instruments |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Interest rate derivatives, net | $ (1) | $ 13 |
Net gain/(loss) deferred in AOCI | (44) |  |
Other current assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Interest rate cash flow hedge derivative at fair value, net | 1 |  |
Other long-term assets, net |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Interest rate cash flow hedge derivative at fair value, net | 24 |  | $ 27
Interest Rate Derivatives |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Interest rate derivatives, net | $ (1) | $ 13 |

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