v3.26.1
Components of Accumulated Other Comprehensive Loss, Net - EEGH (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Other comprehensive (loss) income $ (59) $ 525 $ (191) $ 688
EEGH        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance 6,938 6,548 6,947 7,535
Other comprehensive (loss) income 0 6 2 6
Ending balance 7,019 6,896 7,019 6,896
Unrecognized Amounts on Retirement Benefits        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Other comprehensive (loss) income     21 (21)
Unrecognized Amounts on Retirement Benefits | EEGH        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     (1) (2)
Other comprehensive (loss) income     (1) 1
Ending balance (2) (1) (2) (1)
Unrealized Losses on Cash Flow Hedges        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Other comprehensive (loss) income     (5) (16)
Unrealized Losses on Cash Flow Hedges | EEGH        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     (31) (34)
Other comprehensive (loss) income     3 5
Ending balance (28) (29) (28) (29)
Noncontrolling Interest        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Other comprehensive (loss) income     0 0
Noncontrolling Interest | EEGH        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     1 1
Other comprehensive (loss) income     0 0
Ending balance 1 1 1 1
Accumulated Other Comprehensive (Loss) Income, Net        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Other comprehensive (loss) income (59) 525 (191) 688
Accumulated Other Comprehensive (Loss) Income, Net | EEGH        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance (29) (35) (31) (35)
Other comprehensive (loss) income   6 2 6
Ending balance $ (29) $ (29) $ (29) $ (29)