Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Goodwill

The following table presents the carrying amount of goodwill as of December 31, 2023 and 2022. There were no impairment losses during the years ended December 31, 2023, 2022, and 2021.

	Goodwill
Balance at December 31, 2022	$	47
Goodwill resulting from acquisition of STP(a)	378
Balance at December 31, 2023	$	425

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(a)See Note 2 — Mergers, Acquisitions, and Dispositions for additional information.

Schedule of Finite-Lived Intangible Assets

Our other intangible assets and liabilities, included in Other current assets, Other deferred debits and other assets, Other current liabilities, Other deferred credits and other liabilities in the Consolidated Balance Sheets, consisted of the following as of December 31, 2023 and 2022. The intangible assets and liabilities shown below are generally amortized on a straight line basis, except for unamortized energy contracts which are amortized in relation to the expected realization of the underlying cash flows:

	December 31, 2023						December 31, 2022
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Unamortized Energy Contracts	$	1,892	$	(1,631)	$	261	$	1,960	$	(1,708)	$	252
Customer Relationships	242		(167)		75		356		(265)		91
Total	$	2,134	$	(1,798)	$	336	$	2,316	$	(1,973)	$	343

Schedule Of Finite-Lived Intangible Assets Amortization Expense

The following table summarizes the amortization expense related to our other intangible assets and liabilities for each of the years ended December 31, 2023, 2022, and 2021:

For the Years Ended December 31,	Amortization Expense(a)
2023	$	58
2022	61
2021	80

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(a)See Note 23 — Supplemental Financial Information for additional information related to the amortization of unamortized energy contracts.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table summarizes the estimated future amortization expense related to our other intangible assets and liabilities as of December 31, 2023:

For the Years Ending December 31,	Estimated Future Amortization Expense
2024	$	62
2025	58
2026	51
2027	37
2028	31
2029 and thereafter	97