v3.26.1
Nature of Operations (Details)
$ / shares in Units, $ in Millions
6 Months Ended
Jul. 15, 2026
USD ($)
Jun. 30, 2026
Segment
shares
May 15, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
shares
Segment Reporting Information [Line Items]        
Number of operating segment | Segment   3    
Number of reportable segment | Segment   3    
Common stock, shares outstanding | shares   880,000,000   879,000,000
NextEra Energy Merger Agreement        
Segment Reporting Information [Line Items]        
Cash to be received under agreements in exchange of shares     $ 360  
Common stock, shares outstanding | shares     0.8138  
Dividends per share | $ / shares     $ 0.6675  
Termination fee payable     $ 2,240  
Termination fee receivable     6,520  
Termination fee receivable upon termination due to specified conditions     $ 4,830  
Subsequent Event        
Segment Reporting Information [Line Items]        
Customer rate credits $ 2,250      
Virginia Electric and Power Company        
Segment Reporting Information [Line Items]        
Number of operating segment | Segment   1    
Number of reportable segment | Segment   1    
Common stock, shares outstanding | shares   379,927   373,881
Virginia Electric and Power Company | Subsequent Event | NextEra Energy Merger Agreement        
Segment Reporting Information [Line Items]        
Customer rate credits 1,780      
Increase in charitable commitments $ 10