v3.26.1
Leases (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost $ 12 $ 10 $ 24 $ 20  
Lessee, Operating Lease, Liability, to be Paid 377   377    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (58)   (58)    
Operating Lease, Liability 319   319    
Operating Lease, Liability, Current (36)   (36)   $ (36)
Operating lease liabilities 283   283   $ 301
PPAs          
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost 11 9 22 18  
Lessee, Operating Lease, Liability, to be Paid 335   335    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (49)   (49)    
Operating Lease, Liability 286   286    
Property, Plant and Equipment, Other Types          
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost [1] 1 $ 1 2 $ 2  
Lessee, Operating Lease, Liability, to be Paid 42   42    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (9)   (9)    
Operating Lease, Liability $ 33   $ 33    
[1] Includes immaterial short-term lease expense.