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Debt and Credit Agreements (Tables) | 3 Months Ended
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Mar. 31, 2025
Debt Disclosure [Abstract] |
Schedule of Line of Credit Facilities | As of March 31, 2025 and December 31, 2024, we had the following aggregate bank commitments, credit facility borrowings and available capacity under our respective credit facilities:
March 31, 2025 |  |  |  |  |  |  |  |  |  |  |
Facility Type |  | Aggregate Bank Commitment |  | Facility Draws |  | Outstanding Letters of Credit |  | Outstanding Commercial Paper(a) |  | Total Available Capacity |
Revolving Credit Facility |  | $ | 4,500 |  |  | $ | — |  |  | $ | 50 |  |  | $ | — |  |  | $ | 4,450 |  |
Bilaterals(b) |  | 2,350 |  |  | — |  |  | 1,117 |  |  | — |  |  | 1,233 |  |
Accounts Receivable Facility |  | 1,500 |  |  | — |  |  | — |  |  | — |  |  | 1,500 |  |
Liquidity Facility |  | 971 |  |  | — |  |  | 900 |  |  | — |  |  | 35 |  | (c)
Project Finance |  | 137 |  |  | — |  |  | 118 |  |  | — |  |  | 19 |  |
Total |  | $ | 9,458 |  |  | $ | — |  |  | $ | 2,185 |  |  | $ | — |  |  | $ | 7,237 |  |
December 31, 2024 |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility |  | $ | 4,500 |  |  | $ | — |  |  | $ | 51 |  |  | $ | — |  |  | $ | 4,449 |  |
Bilaterals |  | 1,850 |  |  | — |  |  | 1,095 |  |  | — |  |  | 755 |  |
Accounts Receivable Facility |  | 1,500 |  |  | — |  |  | — |  |  | — |  |  | 1,500 |  |
Liquidity Facility |  | 971 |  |  | — |  |  | 907 |  |  | — |  |  | 21 |  | (c)
Project Finance |  | 137 |  |  | — |  |  | 120 |  |  | — |  |  | 17 |  |
Total |  | $ | 8,958 |  |  | $ | — |  |  | $ | 2,173 |  |  | $ | — |  |  | $ | 6,742 |  |
__________ (a)Our commercial paper program is supported by the revolving credit agreement. In order to maintain our commercial paper program in the amounts indicated above, we must have a credit facility in place, at least equal to the amount of our commercial paper program. As of March 31, 2025 and December 31, 2024, the maximum program size of our commercial paper program was $4.5 billion. We do not issue commercial paper in an aggregate amount exceeding the then available capacity under our credit facility. There were no commercial paper borrowings outstanding as of March 31, 2025 and December 31, 2024. (b)In January 2025, we initiated a new bilateral credit agreement for $200 million, with no maturity date. In March 2025, a bilateral credit agreement initiated in March 2023 was extended for an additional two years to March 2027. In March 2025, we initiated a new bilateral credit agreement for $300 million, scheduled to mature March 2026. (c)The maximum amount of the bank commitment is not to exceed $971 million. The aggregate available capacity of the facility is subject to market fluctuations based on the value of U.S. Treasury Securities which determines the amount of collateral held in the trust. We may post additional collateral to borrow up to the maximum bank commitment. As of March 31, 2025 and December 31, 2024, without posting additional collateral, the actual availability of facility, prior to outstanding letters of credit was $935 million and $928 million, respectively.
Schedule of Long-term Debt Instruments | During the three months ended March 31, 2025, the following long-term debt was issued (redeemed):
Type |  | Interest Rate |  | Maturity |  | Amount |  |
Tax Exempt Pollution Control Revenue Bonds |  | 4.45 | % |  | March 2025 |  | $ | (23) |  |  |
Continental Wind Nonrecourse Debt |  | 6.00 | % |  | February 2033 |  | (18) |  |  |
West Medway II Nonrecourse Debt |  | 1-month SOFR + 3.225% |  | March 2026 |  | (8) |  |  |
Antelope Valley DOE Nonrecourse Debt |  | 2.29% - 3.56% |  | January 2037 |  | (6) |  |  |
RPG Nonrecourse Debt |  | 4.11 | % |  | March 2035 |  | (2) |  |  |
Total long-term debt issued (redeemed) |  |  |  |  |  | $ | (57) |  |  |

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69E -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69E Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 + Details
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- Definition Tabular disclosure of short-term or long-term contractual arrangements with lenders, including letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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