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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Summary 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 three months ended March 31, 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 (loss) before reclassifications | — |  |  | — |  |  | 18 |  |  |  |  | 18 |
Amounts reclassified from accumulated other comprehensive loss | 17 |  |  | (5) |  |  | — |  |  |  |  | 12 |
Net current-period other comprehensive income (loss) | 17 |  |  | (5) |  |  | 18 |  |  |  |  | 30 |
Balance at March 31, 2023 | $ | (968) |  |  | 303 |  |  | (404) |  |  |  |  | (1,069) |
The table below summarizes changes in accumulated other comprehensive loss recorded on our consolidated balance sheets by component for the three months ended March 31, 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 income (loss) before reclassifications | — |  |  | — |  |  | 67 |  |  | — |  |  | 67 |
Amounts reclassified from accumulated other comprehensive loss | 26 |  |  | 1 |  |  | — |  |  | 17 |  |  | 44 |
Net current-period other comprehensive income (loss) | 26 |  |  | 1 |  |  | 67 |  |  | 17 |  |  | 111 |
Balance at March 31, 2022 | $ | (1,551) |  |  | (163) |  |  | (333) |  |  | — |  |  | (2,047) |
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss) by Component | The table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the three months ended March 31, 2023:
Three Months Ended March 31, 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 |  | $ | 20 |  |  | Other (expense) income, net
Prior service credit |  | (4) |  |  | Other (expense) income, net
Total before tax |  | 16 |  |  |
Income tax benefit |  | (4) |  |  | Income tax expense
Net of tax |  | $ | 12 |  |  |
________________________________________________________________________ (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 table below presents further information about our reclassifications out of accumulated other comprehensive loss by component for the three months ended March 31, 2022:
Three Months Ended March 31, 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 expense
Net of tax |  | $ | 17 |  |  |
Amortization of pension & post-retirement plans(1) |  |  |  |
Net actuarial loss |  | $ | 37 |  |  | Other (expense) income, net
Prior service cost |  | (1) |  |  | Other (expense) income, net
Total before tax |  | 36 |  |  |
Income tax benefit |  | (9) |  |  | Income tax expense
Net of tax |  | $ | 27 |  |  |
________________________________________________________________________ (1)See Note 8—Employee Benefits for additional information on our net periodic benefit income related to our pension and post-retirement plans.

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