SUPPLEMENTAL FINANCIAL INFORMATION Supplemental Cash Flows (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Supplemental Cash Flow Elements [Abstract] | ||||
| Interest paid (net of interest capitalized) | $ 173 | $ 182 | ||
| Income Tax Paid, before Refund Received | 34 | 33 | ||
| Income taxes paid to state jurisdictions | 1 | 1 | ||
| Additions to property, plant and equipment and other long-lived assets | 168 | 138 | ||
| Allowance for equity funds used during construction | $ 15 | $ 10 | 28 | 20 |
| Other Non-cash Investing and Financing | $ 0 | $ 6 | ||
| X | ||||||||||
- Definition Other Non-cash Investing and Financing No definition available.
|
| X | ||||||||||
- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after income tax refund received, of cash paid to state and local tax jurisdictions for tax on income. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, before refund, of cash paid to foreign, federal, state, and local jurisdictions as income tax. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The component of the allowance for funds used during construction during the period based on an assumed rate of return on equity funds used in financing the construction of regulated assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|