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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Summary of Significant Accounting Policies [Abstract]

Allowance for Credit Losses

The following table presents our allowance for credit losses activity for the years indicated:

		For the Year Ended December 31,
		2024				2023				2022
Balance at beginning of period		$	35			$	54			$	53
Charged to costs and expenses			3				1				6
Charged to other accounts			–				–				1
Deductions			–				(20	)			(6	)
Balance at end of period		$	38			$	35			$	54

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,
		2024				2023
Cash and cash equivalents		$	583			$	180
Restricted cash			255				140
Total cash, cash equivalents and restricted cash shown in the    Statements of Consolidated Cash Flows		$	838			$	320

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,
		2024				2023				2022
Impairment charges reflected in operating costs and expenses:
Property, plant and equipment		$	50			$	18			$	41
Other (1)			7				12				12
Total asset impairment charges in operating costs and expenses (2)			57				30				53
Other property, plant and equipment impairment charges (3)			–				2				–
Total asset impairment charges		$	57			$	32			$	53

(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.

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Tabular disclosure of allowance for credit loss on accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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The entire disclosure for the details of the charge against earnings resulting from the aggregate write down of all assets from their carrying value to their fair value. Disclosure may also include a description of the impaired asset and facts and circumstances leading to the impairment, amount of the impairment loss and where the loss is located in the income statement, method(s) for determining fair value, and the segment in which the impaired asset is reported.

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