v3.26.1
Goodwill and Other Intangible Assets - Components of Intangible Assets (Detail) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Goodwill and Other Intangible Assets [Line Items]    
Definite-lived intangible assets subject to amortization, gross carrying amount $ 134 $ 134
Accumulated amortization (29) (21)
Finite lived intangible assets net $ 105 113
Water Rights [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Estimated useful lives (in years) 30 years  
Definite-lived intangible assets subject to amortization, gross carrying amount $ 9 9
Accumulated amortization (1) (1)
Finite lived intangible assets net $ 8 8
Trade Names [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Estimated useful lives (in years) 15 years  
Definite-lived intangible assets subject to amortization, gross carrying amount $ 15 15
Accumulated amortization (5) (4)
Finite lived intangible assets net $ 10 11
Customer Relationships [Member]    
Goodwill and Other Intangible Assets [Line Items]    
Estimated useful lives (in years) 8 years  
Definite-lived intangible assets subject to amortization, gross carrying amount $ 110 110
Accumulated amortization (23) (16)
Finite lived intangible assets net $ 87 $ 94