v3.26.1
Trust Investments - Schedule of Accounts Receivable and Accounts Payable in NDT Funds (Details) - Nuclear Decommissioning Trust (NDT) Fund [Member] - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Schedule of Trust Investments [Line Items]    
Accounts Receivable $ 30 $ 23
Accounts Payable $ 22 $ 16