Investments and Restricted Cash and Cash Equivalents and Investments - EGTS - Reconciliation of Cash (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
Jun. 30, 2025 |
Dec. 31, 2024 |
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| Condensed Cash Flow Statements, Captions [Line Items] | ||||
| Cash and cash equivalents | $ 4,072 | $ 1,695 | ||
| Restricted cash and cash equivalents | 479 | 254 | ||
| Total cash and cash equivalents and restricted cash and cash equivalents | 4,238 | 1,878 | $ 2,420 | $ 1,586 |
| EGTS | ||||
| Condensed Cash Flow Statements, Captions [Line Items] | ||||
| Cash and cash equivalents | 18 | 10 | ||
| Restricted cash and cash equivalents | 24 | 29 | ||
| Total cash and cash equivalents and restricted cash and cash equivalents | $ 42 | $ 39 | $ 39 | $ 32 |
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- Definition Carrying amount of investments in debt and equity securities categorized as available-for-sale securities, reported at fair value and expected to be used in operations within one year or the normal operating cycle, if longer. Includes restricted cash and investments primarily related to (a) funds held in trust for nuclear decommissioning and (b) debt service requirements that are restricted by certain project debt agreements to be used only for the related project. Includes equity method investments. Includes Rabbi trusts that hold corporate-owned life insurance on certain key executives and directors and represents the cash surrender value, net of any amounts borrowed against the cash surrender value. 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/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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