Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2023

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of the Entity's Accumulated Other Comprehensive Income (Loss) by Component

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component for the nine months ended September 30, 2023:

	Pension Plans		Post-Retirement Benefit Plans	Foreign Currency Translation Adjustment and Other	Total
	(Dollars in millions)
Balance at December 31, 2022	$	(985)	308	(422)	(1,099)
Other comprehensive income before reclassifications	—		—	3	3
Amounts reclassified from accumulated other comprehensive loss	55		(16)	—	39
Net current-period other comprehensive income (loss)	55		(16)	3	42
Balance at September 30, 2023	$	(930)	292	(419)	(1,057)

The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheets by component for the nine months ended September 30, 2022:

	Pension Plans		Post-Retirement Benefit Plans	Foreign Currency Translation Adjustment and Other	Interest Rate Swap	Total
	(Dollars in millions)
Balance at December 31, 2021	$	(1,577)	(164)	(400)	(17)	(2,158)
Other comprehensive loss before reclassifications	—		—	(245)	—	(245)
Amounts reclassified from accumulated other comprehensive loss	68		4	112	17	201
Net current-period other comprehensive income (loss)	68		4	(133)	17	(44)
Balance at September 30, 2022	$	(1,509)	(160)	(533)	—	(2,202)

Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss) by Component

The tables below present further information about our reclassifications out of accumulated other comprehensive loss by component for the three and nine months ended September 30, 2023:

Three Months Ended September 30, 2023	Decrease (Increase) in Net Income		Affected Line Item in Consolidated Statement of Operations
	(Dollars in millions)
Amortization of pension & post-retirement plans(1)
Net actuarial loss	$	22	Other expense, net
Prior service credit	(4)		Other expense, net
Total before tax	18
Income tax benefit	(5)		Income tax (benefit) expense
Net of tax	$	13

Nine Months Ended September 30, 2023	Decrease (Increase) in Net Income		Affected Line Item in Consolidated Statement of Operations
	(Dollars in millions)
Amortization of pension & post-retirement plans(1)
Net actuarial loss	$	63	Other expense, net
Prior service credit	(11)		Other expense, net
Total before tax	52
Income tax benefit	(13)		Income tax (benefit) expense
Net of tax	$	39

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(1)See Note 8—Employee Benefits for additional information on our net periodic benefit expense (income) related to our pension and post-retirement plans.

The tables below present further information about our reclassifications out of accumulated other comprehensive loss by component for the three and nine months ended September 30, 2022:

Three Months Ended September 30, 2022	Decrease (Increase) in Net Income		Affected Line Item in Consolidated Statement of Operations
	(Dollars in millions)
Interest rate swaps	$	—	Interest expense
Income tax benefit	—		Income tax (benefit) expense
Net of tax	$	—
Amortization of pension & post-retirement plans(1)
Net actuarial loss	$	32	Other expense, net
Prior service cost	(2)		Other expense, net
Total before tax	30
Income tax benefit	(7)		Income tax (benefit) expense
Net of tax	$	23
Reclassification of realized loss on foreign currency translation to gain on sale of business	$	112	Gain on sale of business
Income tax benefit	—		Income tax (benefit) expense
Net of tax	$	112

Nine Months Ended September 30, 2022	Decrease (Increase) in Net Income		Affected Line Item in Consolidated Statement of Operations
	(Dollars in millions)
Interest rate swaps	$	22	Interest expense
Income tax benefit	(5)		Income tax (benefit) expense
Net of tax	$	17
Amortization of pension & post-retirement plans(1)
Net actuarial loss	$	99	Other expense, net
Prior service cost	(3)		Other expense, net
Total before tax	96
Income tax benefit	(24)		Income tax (benefit) expense
Net of tax	$	72
Reclassification of realized loss on foreign currency translation to gain on sale of business	$	112	Gain on sale of business
Income tax benefit	—		Income tax (benefit) expense
Net of tax	$	112

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(1)See Note 8—Employee Benefits for additional information on our net periodic benefit income related to our pension and post-retirement plans.