FINANCING ACTIVITIES - Schedule of Long-Term Debt Information (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Total Long-term Debt Outstanding | $ 52,541 | $ 47,322 |
| Long-term Debt Due Within One Year | 2,677 | 3,194 |
| Long-term Debt | 49,864 | 44,128 |
| Trust fund assets one time fee obligation for nuclear fuel disposition | 393 | 381 |
| Senior Unsecured Notes | ||
| Debt Instrument [Line Items] | ||
| Senior Unsecured Notes | 41,626 | 37,190 |
| Pollution Control Bonds | ||
| Debt Instrument [Line Items] | ||
| Pollution Control Bonds | 1,637 | 1,637 |
| Notes Payable | ||
| Debt Instrument [Line Items] | ||
| Notes Payable | 574 | 683 |
| Securitization Bonds | ||
| Debt Instrument [Line Items] | ||
| Securitization Bonds | 2,262 | 984 |
| Spent Nuclear Fuel Obligation | ||
| Debt Instrument [Line Items] | ||
| Spent Nuclear Fuel Obligation | 339 | 330 |
| Junior Subordinated Notes | ||
| Debt Instrument [Line Items] | ||
| Junior Subordinated Notes | 4,683 | 4,681 |
| Other Long-term Debt | ||
| Debt Instrument [Line Items] | ||
| Other Long-term Debt | $ 1,420 | $ 1,817 |
| X | ||||||||||
- Definition Trust fund assets one time fee obligation for nuclear fuel disposition. No definition available.
|
| X | ||||||||||
- 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/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as current. Excludes lease obligation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Represents the current and noncurrent portions of a debt security issued by a state, certain agencies or authorities, a local government, or development corporation to finance the construction of air- or water-pollution control facilities or sewage or solid waste disposal facilities pursuant to federal law. The bonds are backed by the credit of the beneficiary of the financing rather than the credit of the issuer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of long-term debt classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of long-term notes payable classified as other. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Provision for the disposal costs of spent nuclear fuel from generating stations. No definition available.
|
| X | ||||||||||
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|