Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

Changes in AOCI for the periods were:

	Successor				Predecessor
	Six Months Ended June 30, 2024		May 18 through June 30, 2023		January 1 through May 17, 2023
Beginning balance	$	(23)	$	—	$	(167)
Gains (losses) arising during the period	1		(6)		6
Reclassifications to Consolidated Statements of Operations (a)	(12)		1		5
Income tax benefit (expense)	5		2		(5)
Other comprehensive income (loss)	(6)		(3)		6
Accumulated other comprehensive income (loss)	$	(29)	$	(3)	$	—

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(a)Primarily reclassification to “Nuclear decommission trust fund gain (loss), net”.

The components of AOCI, net of tax, at June 30 were:

	Successor		Predecessor
	2024		2023
Available-for-sale securities unrealized gain (loss), net	$	(1)	$	(3)
Postretirement benefit actuarial gain (loss), net	(28)		—
Accumulated other comprehensive income (loss)	$	(29)	$	(3)