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Restricted Cash - Components of Restricted Cash (Details) - USD ($) $ in Millions | Jun. 30, 2026 | Dec. 31, 2025
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Restricted Cash and Cash Equivalent Item [Line Items] |  |
Current restricted cash | $ 68 | $ 195
Noncurrent restricted cash | 1,402 | 875
Debt service reserves |  |
Restricted Cash and Cash Equivalent Item [Line Items] |  |
Current restricted cash | 0 | 121
Noncurrent restricted cash | 576 | 105
Other project reserves |  |
Restricted Cash and Cash Equivalent Item [Line Items] |  |
Current restricted cash | 68 | 74
Construction reserves |  |
Restricted Cash and Cash Equivalent Item [Line Items] |  |
Noncurrent restricted cash | $ 826 | $ 770

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