Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Revenue - Narrative (Details) $ in Millions	Oct. 01, 2026 USD ($) GW	Sep. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)
Disaggregation of Revenue [Line Items]
Total principal		$ 9,689	$ 6,911
Subsequent Event
Disaggregation of Revenue [Line Items]
Capacity monetization transaction, transfer of rights, amount	$ 1,500
Proceeds from future capacity revenues, net	1,300
Subsequent Event \| Deferred Capacity Obligation
Disaggregation of Revenue [Line Items]
Total principal	1,500
Purchaser discount	$ 157
Subsequent Event \| 2027/2028 Capacity Year
Disaggregation of Revenue [Line Items]
Capacity volume (in GW) \| GW	6.5
Subsequent Event \| 2028/2029 Capacity Year
Disaggregation of Revenue [Line Items]
Capacity volume (in GW) \| GW	6.0