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Acquisitions - Narrative (Details) $ in Millions |  |  | 3 Months Ended
--- | --- | --- | ---
Mar. 30, 2026 USD ($) state facility MW | Mar. 27, 2026 | Jun. 30, 2026 USD ($) state
Asset Acquisition [Line Items] |  |  |
Number of states | state |  |  | 27
Weighted average remaining contract duration (in years) |  | 15 years |
Cardinal Portfolio acquisition |  |  |
Asset Acquisition [Line Items] |  |  |
Operating revenues |  |  | $ 22
Net income |  |  | $ 7
Cardinal Purchaser LLC And Cardinal JV Purchaser LLC |  |  |
Asset Acquisition [Line Items] |  |  |
Power generation capacity, megawatts | MW | 610 |  |
Payments for asset acquisition | $ 322 |  |
Post-closing adjustments | $ 2 |  |
Cardinal Purchaser LLC And Cardinal JV Purchaser LLC | Cardinal Portfolio acquisition |  |  |
Asset Acquisition [Line Items] |  |  |
Power generation capacity, megawatts | MW | 225 |  |
Number of states | state | 8 |  |
Payments for asset acquisition | $ 242 |  |
Number of solar facilities | facility | 12 |  |
Weighted average remaining contract duration (in years) | 10 years |  |
Borrowings | $ 100 |  |
Payments for asset acquisition and transaction expenses | 240 |  |
Cardinal Purchaser LLC And Cardinal JV Purchaser LLC | Cardinal Portfolio acquisition | Third-Party Investor |  |  |
Asset Acquisition [Line Items] |  |  |
Payments for asset acquisition | $ 80 |  |

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