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Fair Value (Quantitative Information) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | $ (161) | $ (184) | $ (161) | $ (184) | $ (131) | $ (115) | $ (175) | $ (220)
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 7 | (3) | (9) | 20 |  |  |  |
Fair Value Measurements With Unobservable Inputs Reconciliation Recurring Basis Regulatory Assets Liabilities | (15) |  | (15) |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | (11) | (4) | (3) | (12) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 | 26 |  | 25 |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) | 6 | (3) | (24) | 3 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Extinguishment of Debt, Gain (Loss), Net of Tax | (1) | (1) | (13) | (51) |  |  |  |
Depreciation, Amortization and Accretion, Net | (365) | (312) | (1,056) | (945) |  |  |  |
Income from continuing operations before taxes | 328 | 325 | 289 | 705 |  |  |  |
Other comprehensive income - Derivative activity [Member] |  |  |  |  |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 8 | (2) | 6 | 37 |  |  |  |
Interest Rate Contract [Member] |  |  |  |  |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 0 | (4) | 0 | (4) | 0 | (1) | (2) | (4)
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 | 0 |  | 1 |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) | 0 | 0 | 0 | 0 |  |  |  |
Interest Rate Contract [Member] | Other comprehensive income - Derivative activity [Member] |  |  |  |  |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | (2) | 0 | 0 |  |  |  |
Foreign Exchange Contract [Member] |  |  |  |  |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 0 | 56 | 0 | 56 | 35 | 52 | 60 | 59
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 1 | 5 | 3 | 19 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | (10) | (10) | (30) | (28) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 | 26 |  | 26 |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) | 0 | (3) | (12) | (3) |  |  |  |
Foreign Exchange Contract [Member] | Other comprehensive income - Derivative activity [Member] |  |  |  |  |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 1 | 1 | 6 |  |  |  |
Commodity Contract [Member] |  |  |  |  |  |  |  |
Fair Value Inputs Quantitative Information [Line Items] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | (15) | (73) | (15) | (73) | $ (22) | $ (21) | $ (71) | $ (110)
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 0 | 0 | 0 | 4 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | (1) | (1) | (3) | (3) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 | 0 |  | 0 |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) | 0 | 0 | 0 | 6 |  |  |  |
Commodity Contract [Member] | Other comprehensive income - Derivative activity [Member] |  |  |  |  |  |  |  |
Fair Value Derivative Assets Liabilities Measured On Recurring Basis Unobservable Inputs [Abstract] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 8 | (1) | 5 | 31 |  |  |  |
Corporate Other And Other |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Reconciliation to income from continuing operations before taxes | $ (10) | $ (23) | $ (23) | $ (3) |  |  |  |

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