Other Comprehensive Income (Loss) (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Schedule of Changes in AOCI balance by Component

	Pension and Other Post-Employment Benefits		Interest Rate Derivatives		Other		Accumulated Other Comprehensive (Loss) Income
(Dollars in millions)
Balance December 31, 2022, Net of Tax	$	(497)	$	150	$	(41)	$	(388)
Other Comprehensive Income (Loss)
Income Before Reclassifications	—		22		—		22
Amounts Reclassified to Net Earnings	15		—		(1)		14
Tax Expense	(3)		(18)		1		(20)
Total Other Comprehensive Income	12		4		—		16
Balance September 30, 2023, Net of Tax	$	(485)	$	154	$	(41)	$	(372)