v3.26.1
Accounts Receivable - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 07, 2026
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Unbilled customer revenues   $ 1,465   $ 1,305
Total receivables sold   1,244 $ 1,147  
Calpine        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Total receivables sold   $ 564    
Authorized sale of receivables $ 500