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Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2024

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)		2024			2023
	Change in projected benefit obligation (PBO)
	PBO at the beginning of the period		$	2,442		$	2,510
	Service cost			47			51
	Interest cost			126			129
	Actuarial gain			(5)			(44)
	Benefits paid			(187)			(204)
	Special/contractual termination benefits			12			-
	PBO at the end of the period		$	2,435		$	2,442
	Change in plan assets
	Fair value of plan assets at the beginning of the period		$	2,268		$	2,033
	Actual return on plan assets, net of expenses			114			305
	Employer contributions			133			134
	Benefits paid			(187)			(204)
	Fair value of plan assets at the end of the period		$	2,328		$	2,268
	Funded status		$	(107)		$	(174)
	Amounts recognized in the consolidated balance sheet
	Pension and other postretirement benefits - current		$	-		$	-
	Pension and other postretirement benefits - noncurrent		$	(107)		$	(174)
	Accumulated other comprehensive loss		$	-		$	-

Net Periodic Benefit Cost

			For the year ended			For the year ended			For the year ended
			December 31,			December 31,			December 31,
	($ in millions)		2024			2023			2022
	Components of total pension benefit cost (income)
	Service cost		$	47		$	51		$	69
	Interest cost on projected benefit obligation			126			129			106
	Expected return on plan assets			(164)			(148)			(181)
	(Gain) / Loss recognized			45			(202)			(218)
	Net periodic pension benefit cost (income)			54			(170)			(224)
	Pension settlement costs			-			-			55
	Special/contractual termination benefits			12			-			-
	Total pension benefit cost (income)		$	66		$	(170)		$	(169)

Weighted Average Asset Allocations, By Asset Category

			2024			2023
	Asset category:
	Equity securities		26	%		49	%
	Debt securities		62	%		40	%
	Alternative and other investments		12	%		11	%
	Total		100	%		100	%

Expected Benefit Payments Over The Next Ten Years

	($ in millions)		Amount
	2025		$	256
	2026			245
	2027			240
	2028			238
	2029			233
	2030-2034			1,074
	Total		$	2,286

Schedule Of Assumptions Used

			12/31/2024			12/31/2023			12/31/2022
	Discount rate - used at period end to value obligation		5.60	%		5.20	%		5.50	%
	Discount rate - used to compute annual cost		5.00 - 5.80	%		5.50	%		2.90 - 5.60	%
	Expected long-term rate of return on plan assets		7.50 - 6.65	%		7.50	%		7.50	%
	Rate of increase in compensation levels		3.00	%		3.00	%		3.00	%

Schedule Of Changes In Projected Benefit Obligations For OPEB

			For the year ended			For the year ended
			December 31,			December 31,
	($ in millions)		2024			2023
	Change in benefit obligation
	Benefit obligation at the beginning of the period		$	561		$	606
	Service cost			7			8
	Interest cost			28			31
	Plan amendments			-			(45)
	Plan participants' contributions			10			11
	Actuarial (gain) loss			(35)			3
	Benefits paid			(48)			(53)
	Benefit obligation at the end of the period		$	523		$	561
	Change in plan assets
	Fair value of plan assets at the beginning of the period		$	-		$	-
	Plan participants' contributions			10			11
	Employer contribution			38			42
	Benefits paid			(48)			(53)
	Fair value of the plan assets at end of the period		$	-		$	-
	Funded status		$	(523)		$	(561)
	Amounts recognized in the consolidated balance sheet
	Pension and other postretirement benefits - current		$	(39)		$	(38)
	Pension and other postretirement benefits - noncurrent		$	(484)		$	(523)
	Accumulated other comprehensive gain		$	(100)		$	(125)

Schedule Of Net Benefit Costs For OPEB

			For the year ended			For the year ended			For the year ended
			December 31,			December 31,			December 31,
	($ in millions)		2024			2023			2022
	Components of total postretirement benefit cost / (income)
	Service cost		$	7		$	8		$	13
	Interest cost on projected benefit obligation			28			31			31
	Amortization of prior service credit			(25)			(22)			(13)
	(Gain) loss recognized			(35)			3			(248)
	Total postretirement benefit cost / (income)		$	(25)		$	20		$	(217)

Schedule Of Expected Benefit Payments For OPEB

	($ in millions)		Gross Benefit			Medicare Part D Subsidy			Total
	2025		$	40		$	-		$	40
	2026			41			-			41
	2027			42			-			42
	2028			44			-			44
	2029			45			-			45
	2030-2034			235			-			235
	Total		$	447		$	-		$	447

Net Periodic Benefit Cost Not Yet Recognized

			OPEB
	($ in millions)		2024			2023
	Prior service cost (credit)		$	(100)		$	(125)

Amounts Recognized As A Component Of AOCI

			For the year ended			For the year ended
	OPEB		December 31,			December 31,
	($ in millions)		2024			2023
	Accumulated other comprehensive loss (gain) at
	the beginning of the period		$	(125)		$	(102)
	Prior service (cost) credit amortized during the period			25			22
	Prior service cost (credit) occurring during the period			-			(45)
	Net amount recognized in comprehensive
	loss for the period			25			(23)
	Accumulated other comprehensive loss (gain) at
	end of the period		$	(100)		$	(125)

OPEB [Member]

Schedule Of Assumptions Used

			12/31/2024		12/31/2023		12/31/2022
	Discount rate - used at period end to value obligation		5.70%		5.20%		5.50%
	Discount rate - used to compute annual cost		5.00% - 5.80%		5.00% - 6.40%		3.00% - 5.60%

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- Definition

Tabular disclosure of the change in the benefit obligation of other employee benefit plans from the beginning to the end of the period, showing separately, if applicable, the effects of the following: service cost, interest cost, contributions by plan participants, actuarial gains and losses, foreign currency exchange rate changes, benefits paid, plan amendments, business combinations, divestitures, curtailments, settlements, and special and contractual termination benefits.

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