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v3.26.1

Summary of Significant Accounting and Reporting Policies - Narrative (Details) $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2026 USD ($) jointVenture site MW | Mar. 31, 2026 USD ($) MW | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($)
Accounting Policies [Line Items] |  |  |  |
Cash and Cash Equivalents, Project Level | $ 332 | $ 332 |  | $ 334
Restricted cash, current | 58 | 58 |  | 62
Tax Credit Carryforward, Amount Sold |  | (8) | $ (4) |
Capital Expenditures And Other Investments |  | 25 | $ 89 |
Property, plant and equipment – net | 15,291 | 15,291 |  | 15,366
Assets | 19,513 | 19,513 |  | 19,595
Investments in equity method investees | $ 615 | $ 615 |  | $ 625
Sale and Co-Investment [Line Items] |  |  |  |
Generation facility capacity (mw) | MW | 500 | 500 |  |
Disposal Group, Including Discontinued Operations [Line Items] |  |  |  |
Number Of Joint Ventures | jointVenture | 4 |  |  |
four operating sites |  |  |  |
Disposal Group, Including Discontinued Operations [Line Items] |  |  |  |
Number Of Operating Sites | site | 4 |  |  |
one operating site | NEER Subsidiary |  |  |  |
Disposal Group, Including Discontinued Operations [Line Items] |  |  |  |
Number Of Operating Sites | site | 1 |  |  |
Joint Venture | XPLR OpCo [Member] |  |  |  |
Sale and Co-Investment [Line Items] |  |  |  |
Equity Method Investment, Ownership Percentage | 49.00% | 49.00% |  |
Equity Method Investment, Commitment | $ 315 | $ 315 |  |
Joint Venture | NEER Subsidiary |  |  |  |
Sale and Co-Investment [Line Items] |  |  |  |
Equity Method Investment, Ownership Percentage | 51.00% | 51.00% |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Interconnection Assets and Rights |  |  |  |
Disposal Group, Including Discontinued Operations [Line Items] |  |  |  |
Consideration | $ 44 | $ 44 |  |

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