v3.26.3
Accumulated Other Comprehensive Loss (Tables)
 9 Months Ended
Sep. 30, 2026
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of the Entity's Accumulated Other Comprehensive Loss by Component
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheet by component:

Pension PlansPost-Retirement Benefit PlansForeign Currency Translation Adjustment and OtherTotal
(Dollars in millions)
Balance as of December 31, 2025$(848)271 (24)(601)
Other comprehensive income before reclassifications— — 3 3 
Amounts reclassified from accumulated other comprehensive loss70 (23)— 47 
Net current-period other comprehensive income (loss)70 (23)3 50 
Balance as of September 30, 2026$(778)248 (21)(551)
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheets by component:

Pension PlansPost-Retirement Benefit PlansForeign Currency Translation Adjustment and OtherTotal
(Dollars in millions)
Balance as of December 31, 2024$(1,003)320 (40)(723)
Other comprehensive income before reclassifications— — 14 14 
Amounts reclassified from accumulated other comprehensive loss81 (19)— 62 
Net current-period other comprehensive income (loss)81 (19)14 76 
Balance as of September 30, 2025$(922)301 (26)(647)
Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss by Component
The tables below present further information about our reclassifications out of accumulated other comprehensive loss by component:

Three Months Ended September 30, 2026Decrease (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 income, net
Prior service credit(2)Other income, net
Total before tax20 
Income tax benefit(4)Income tax (benefit) expense
Net of tax$16 

Nine Months Ended September 30, 2026Decrease (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$73 Other income, net
Prior service credit(11)Other income, net
Total before tax62 
Income tax benefit(15)Income tax expense (benefit)
Net of tax$47 
________________________________________________________________________
(1)See Note 7—Employee Benefits for additional information on our net periodic benefit expense 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:

Three Months Ended September 30, 2025Decrease (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$30 Other income, net
Prior service credit(3)Other income, net
Total before tax27 
Income tax benefit(6)Income tax (benefit) expense
Net of tax$21 

Nine Months Ended September 30, 2025Decrease (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$89 Other income, net
Prior service credit(7)Other income, net
Total before tax82 
Income tax benefit(20)Income tax expense (benefit)
Net of tax$62 
________________________________________________________________________
(1)See Note 7—Employee Benefits for additional information on our net periodic benefit expense related to our pension and post-retirement plans.