v3.26.1
Dispositions (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 35 Months Ended
Mar. 31, 2026
Mar. 30, 2026
Mar. 03, 2026
Mar. 31, 2026
Jun. 30, 2028
Dec. 31, 2027
Jun. 30, 2027
Dec. 31, 2026
Jun. 30, 2028
Dec. 31, 2025
Oct. 25, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Increase in equity from exchange of partnership units [1]       $ 2,778              
Gain on sale of business       368              
Current liabilities associated with assets held for sale                   $ 84  
Piedmont                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Gain on sale of business       652              
Current liabilities associated with assets held for sale                   66  
Florida Progress LLC                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Noncontrolling ownership percentage     9.19%                
Cash proceeds from exchange of membership interest     $ 2,800                
Transaction costs   $ 30                  
Increase in equity from exchange of partnership units   $ 1,954                  
Florida Progress LLC | If approved                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Noncontrolling ownership percentage         19.70%       19.70%    
Aggregate investment from noncontrolling owner         $ 1,000 $ 1,500 $ 500 $ 200 $ 6,000    
Discontinued Operations, Disposed of by Sale | Commercial Renewables                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Consideration to be received                     $ 1,100
Consideration period                     18 months
Pre-tax earnings included in income from discontinued operations       $ 18              
Held-for-Sale                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Current liabilities associated with assets held for sale                   84  
Held-for-Sale | Piedmont Tennessee Disposal Group                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Sales proceeds from dispositions $ 2,500                    
Current liabilities associated with assets held for sale                   66  
Held-for-Sale | Piedmont Tennessee Disposal Group | Piedmont                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Current liabilities associated with assets held for sale                   66  
Held-for-Sale | Commercial Renewables                      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                      
Current liabilities associated with assets held for sale                   $ 18  
[1] See Note 2 for additional information.