Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2022

Retirement Benefits [Abstract]

Schedule of Components of Expense/(Income) Related to Net Benefit Expense

	Pension Benefits Cost
	Third Quarters				Nine Months
(Dollars in millions)	2022		2021		2022		2021
Service Cost Included in Labor and Fringe	$	8	$	10	$	24	$	28
Interest Cost	16		13		48		40
Expected Return on Plan Assets	(47)		(46)		(141)		(139)
Amortization of Net Loss	12		18		37		55
Total Included in Other Income - Net	(19)		(15)		(56)		(44)
Net Periodic Benefit Credit	$	(11)	$	(5)	$	(32)	$	(16)
	Other Post-retirement Benefits Cost
	Third Quarters				Nine Months
(Dollars in millions)	2022		2021		2022		2021
Service Cost Included in Labor and Fringe	$	—	$	1	$	—	$	1
Interest Cost	—		—		1		1
Amortization of Prior Service Credits	(2)		(2)		(5)		(6)
Total Included in Other Income - Net	(2)		(2)		(4)		(5)
Net Periodic Benefit Credit	$	(2)	$	(1)	$	(4)	$	(4)