v3.26.3
Leases (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost $ 14 $ 11 $ 38 $ 31  
Lessee, Operating Lease, Liability, to be Paid 364   364    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (54)   (54)    
Operating Lease, Liability 310   310    
Operating Lease, Liability, Current (37)   (37)   $ (36)
Operating lease liabilities 273   273   $ 301
PPAs          
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost 13 10 35 28  
Lessee, Operating Lease, Liability, to be Paid 324   324    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (46)   (46)    
Operating Lease, Liability 278   278    
Property, Plant and Equipment, Other Types          
Lessee, Lease, Description [Line Items]          
Operating Lease, Cost [1] 1 $ 1 3 $ 3  
Lessee, Operating Lease, Liability, to be Paid 40   40    
Lessee, Operating Lease, Liability, Undiscounted Excess Amount (8)   (8)    
Operating Lease, Liability $ 32   $ 32    
[1] Includes immaterial short-term lease expense