v3.26.1
Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
Jun. 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$(848)271 (24)(601)
Other comprehensive income before reclassifications— — 6 6 
Amounts reclassified from accumulated other comprehensive loss48 (17)— 31 
Net current-period other comprehensive income (loss)48 (17)6 37 
Balance as of June 30, 2026$(800)254 (18)(564)
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$(1,003)320 (40)(723)
Other comprehensive income before reclassifications— — 3 3 
Amounts reclassified from accumulated other comprehensive loss54 (13)— 41 
Net current-period other comprehensive income (loss)54 (13)3 44 
Balance as of June 30, 2025$(949)307 (37)(679)
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 June 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$20 Other income, net
Prior service credit(1)Other income, net
Total before tax19 
Income tax benefit(5)Income tax (benefit) expense
Net of tax$14 

Six Months Ended June 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$51 Other income, net
Prior service credit(9)Other income, net
Total before tax42 
Income tax benefit(11)Income tax expense (benefit)
Net of tax$31 
________________________________________________________________________
(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 June 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(2)Other income, net
Total before tax28 
Income tax benefit(7)Income tax (benefit) expense
Net of tax$21 

Six Months Ended June 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$59 Other income, net
Prior service credit(4)Other income, net
Total before tax55 
Income tax benefit(14)Income tax expense (benefit)
Net of tax$41 
________________________________________________________________________
(1)See Note 7—Employee Benefits for additional information on our net periodic benefit expense related to our pension and post-retirement plans.