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Acquisitions and Dispositions - Summary of Assets and Liabilities Transferred (Details) - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
Mar. 25, 2022 | Jun. 30, 2022
Waiawa Drop Down | Tax Equity Bridge Loan |  |
Schedule of Asset Acquisition [Line Items] |  |
Long-term debt | $ 60 |
Mililani I Drop Down |  |
Schedule of Asset Acquisition [Line Items] |  |
Other current and non-current assets | 2 |
Property, plant and equipment | 118 |
Right-of-use-assets | 19 |
Total assets acquired | 139 |
Long-term debt | 100 |
Long-term lease liabilities | 20 |
Other current and non-current liabilities | 27 |
Total liabilities assumed | 147 |
Net liabilities assumed | (8) |
Unamortized debt issuance costs | 3 |
Expected contributions upon substantial completion | 42 |
Mililani I Drop Down | Tax Equity Investors |  |
Schedule of Asset Acquisition [Line Items] |  |
Payments to fund project reserve accounts | 15 |
(Distributions to) contributions from noncontrolling interests | 18 |
Mililani I Drop Down | CEG |  |
Schedule of Asset Acquisition [Line Items] |  |
Repayment of debt at asset acquisition | 27 |
Payments for associated fees | 2 |
Mililani I Drop Down | Construction loans |  |
Schedule of Asset Acquisition [Line Items] |  |
Long-term debt | 16 |
Mililani I Drop Down | Sponsor Equity Bridge Loan |  |
Schedule of Asset Acquisition [Line Items] |  |
Long-term debt | 27 |
Mililani I Drop Down | Sponsor Equity Bridge Loan | Tax Equity Investors |  |
Schedule of Asset Acquisition [Line Items] |  |
Repayment of debt at asset acquisition | 14 |
Mililani I Drop Down | Tax Equity Bridge Loan |  |
Schedule of Asset Acquisition [Line Items] |  |
Long-term debt | $ 60 | $ 60

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