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Segments - Depreciation, Amortization and Accretion, Capital Expenditures, Interest Income, Interest Expense, and Net Equity in Earnings (Losses) of Affiliates (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs $ 434 $ 354 $ 867 $ 691
Capital Expenditures 1,657 1,346 3,467 2,607
Interest income 65 70 130 139
Interest expense 368 352 721 694
Net equity in losses of affiliates (34) (22) (42) (56)
Operating Segments [Member] | Renewables        
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs 192 138 373 267
Capital Expenditures 1,272 1,086 2,683 2,056
Interest income 24 20 49 41
Interest expense 140 119 265 250
Net equity in losses of affiliates (17) (6) (24) (15)
Operating Segments [Member] | Utilities        
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs 137 131 273 255
Capital Expenditures 349 232 715 492
Interest income 3 4 5 6
Interest expense 79 77 156 154
Net equity in losses of affiliates 1 2 3 4
Operating Segments [Member] | Energy Infrastructure        
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs 102 83 214 164
Capital Expenditures 28 25 56 53
Interest income 34 41 69 82
Interest expense 60 76 125 150
Net equity in losses of affiliates (6) 3 9 7
Operating Segments [Member] | New Energy Technologies        
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs 0 1 1 1
Capital Expenditures 2 2 3 3
Interest income 0 2 0 4
Interest expense 0 0 0 0
Net equity in losses of affiliates (9) (17) (26) (44)
Operating Segments [Member] | Corporate Other And Other [Member]        
Segment Reporting [Line Items]        
Depreciation, amortization, and accretion of AROs 3 1 6 4
Capital Expenditures 6 1 10 3
Interest income 4 3 7 6
Interest expense 89 80 175 140
Net equity in losses of affiliates $ (3) $ (4) $ (4) $ (8)