Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2023

Projected Benefit Obligation, Fair Values Of Plan Assets And Amounts Recognized In The Balance Sheet

	For the year ended		For the year ended
	December 31,		December 31,
($ in millions)	2023		2022
Change in projected benefit obligation (PBO)
PBO at the beginning of the period	$	2,510	$	3,477
Service cost		51		69
Interest cost		129		106
Actuarial gain		(44)		(867)
Benefits paid		(204)		(75)
Settlements		-		(200)
PBO at the end of the period	$	2,442	$	2,510
Change in plan assets
Fair value of plan assets at the beginning of the period	$	2,033	$	2,655
Actual return on plan assets		305		(523)
Employer contributions		134		176
Settlements		-		(200)
Benefits paid		(204)		(75)
Fair value of plan assets at the end of the period	$	2,268	$	2,033
Funded status	$	(174)	$	(477)
Amounts recognized in the consolidated balance sheet
Pension and other postretirement benefits - current	$	-	$	-
Pension and other postretirement benefits - noncurrent	$	(174)	$	(477)
Accumulated other comprehensive loss	$	-	$	-

Net Periodic Benefit Cost

	Successor						Predecessor
	For the year ended		For the year ended		For the eight months		For the four months
	December 31,		December 31,		ended December 31,		ended April 30,
($ in millions)	2023		2022		2021		2021
Components of total pension benefit cost (income)
Service cost	$	51	$	69	$	53	$	32
Interest cost on projected benefit obligation		129		106		69		31
Expected return on plan assets		(148)		(181)		(127)		(61)
(Gain) / loss recognized		(202)		(218)		6		-
Amortization of unrecognized loss		-		-		-		24
Net periodic pension benefit cost (income)		(170)		(224)		1		26
Pension settlement costs		-		55		-		-
Total pension benefit cost (income)	$	(170)	$	(169)	$	1	$	26

Weighted Average Asset Allocations, By Asset Category

	2023		2022
Asset category:
Equity securities	49	%	58	%
Debt securities	40	%	30	%
Alternative and other investments	11	%	12	%
Total	100	%	100	%

Expected Benefit Payments Over The Next Ten Years

($ in millions)	Amount
2024	$	238
2025		237
2026		232
2027		227
2028		226
2029-2033		1,049
Total	$	2,209

Schedule Of Assumptions Used

	12/31/2023		12/31/2022		12/31/2021		4/30/2021
Discount rate - used at period end to value obligation	5.20	%	5.50	%	2.90	%	3.10	%
Discount rate - used at beginning of period to compute annual cost	5.50	%	2.90	%	3.10	%	2.60	%
Expected long-term rate of return on plan assets	7.50	%	7.50	%	7.50	%	7.50	%
Rate of increase in compensation levels	3.00	%	3.00	%	2.00	%	2.00	%

Schedule Of Changes In Projected Benefit Obligations For OPEB

	For the year ended		For the year ended
	December 31,		December 31,
($ in millions)	2023		2022
Change in benefit obligation
Benefit obligation at the beginning of the period	$	606	$	897
Service cost		8		13
Interest cost		31		31
Plan amendments		(45)		(41)
Plan participants' contributions		11		10
Actuarial (gain) loss		3		(248)
Benefits paid		(53)		(56)
Benefit obligation at the end of the period	$	561	$	606
Change in plan assets
Fair value of plan assets at the beginning of the period	$	-	$	-
Plan participants' contributions		11		10
Employer contribution		42		46
Benefits paid		(53)		(56)
Fair value of the plan assets at end of the period	$	-	$	-
Funded status	$	(561)	$	(606)
Amounts recognized in the consolidated balance sheet
Pension and other postretirement benefits - current	$	(38)	$	(39)
Pension and other postretirement benefits - noncurrent	$	(523)	$	(567)
Accumulated other comprehensive gain	$	(125)	$	(102)

Schedule Of Net Benefit Costs For OPEB

	Successor						Predecessor
	For the year ended		For the year ended		For the eight months		For the four months
	December 31,		December 31,		ended December 31,		ended April 30,
($ in millions)	2023		2022		2021		2021
Components of total postretirement benefit cost / (income)
Service cost	$	8	$	13	$	11	$	7
Interest cost on projected benefit obligation		31		31		18		9
Amortization of prior service credit		(22)		(13)		(5)		(10)
(Gain) loss recognized		3		(248)		37		-
Amortization of unrecognized (gain) loss		-		-		-		5
Net periodic postretirement benefit cost / (income)		20		(217)		61		11
Gain on disposal, net		-		-		-		-
Total postretirement benefit cost / (income)	$	20	$	(217)	$	61	$	11

Schedule Of Expected Benefit Payments For OPEB

($ in millions)	Gross Benefit		Medicare Part D Subsidy		Total
2024	$	39	$	-	$	39
2025		40		-		40
2026		42		-		42
2027		43		-		43
2028		45		-		45
2029-2033		238		-		238
Total	$	447	$	-	$	447

Net Periodic Benefit Cost Not Yet Recognized

	OPEB
($ in millions)	2023		2022
Prior service credit	$	(125)	$	(102)

Amounts Recognized As A Component Of AOCI

	For the year ended		For the year ended
OPEB	December 31,		December 31,
($ in millions)	2023		2022
Accumulated other comprehensive gain at
the beginning of the period	$	(102)	$	(75)
Prior service credit amortized during the period		22		13
Prior service credit occurring during the period		(45)		(40)
Net amount recognized in comprehensive
loss for the period		(23)		(27)
Accumulated other comprehensive gain at
end of the period	$	(125)	$	(102)

OPEB [Member]

Schedule Of Assumptions Used

	12/31/2023	12/31/2022	12/31/2021	4/30/2021
Discount rate - used at period end to value obligation	5.20%	5.50%	3.00%	3.30%
Discount rate - used to compute annual cost	5.00% - 6.40%	3.00% - 5.60%	2.80% - 3.30%	2.60% - 2.80%