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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Schedule of Allowance for Credit Losses
The following table presents our allowance for credit losses activity for the years indicated:
For the Year Ended December 31,
202520242023
Balance at beginning of period$38 $35 $54 
Charged to costs and expenses– 3 1 
Deductions(3)– (20)
Balance at end of period$35 $38 $35 
Schedule of Cash, Cash Equivalents and Restricted Cash
The following table provides a reconciliation of cash and cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the amounts shown in the Statements of Consolidated Cash Flows.
December 31,
20252024
Cash and cash equivalents$969 $583 
Restricted cash276 255 
Total cash, cash equivalents and restricted cash shown in the Statements of Consolidated Cash Flows
$1,245 $838 
Schedule of Asset Impairment Charges
The following table summarizes our asset impairment charges by type as presented on our Statements of Consolidated Cash Flows for the years indicated:
For the Year Ended December 31,
202520242023
Impairment charges reflected in operating costs and expenses:
Property, plant and equipment$45 $50 $18 
Other (1)5 7 12 
Total asset impairment charges in operating costs and expenses (2)50 57 30 
Other property, plant and equipment impairment charges (3)– – 2 
Total asset impairment charges$50 $57 $32 
(1)Primarily represents the write-down of surplus materials classified as “Other assets” on our Consolidated Balance Sheets.
(2)Amounts presented are a component of “Third party and other costs” within the “Operating costs and expenses” section of our Statements of Consolidated Operations.
(3)Amounts presented are a component of “Third party and other costs” within the “General and administrative costs” section of our Statements of Consolidated Operations.