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Summary of Significant Accounting Policies - Allowance for Doubtful Accounts Receivable (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]      
Balance at beginning of year $ 10 $ 7 $ 5
Provision 0 3 2
Recoveries (1) 0 0
Balance at end of year $ 9 $ 10 $ 7