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Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2021
Equity [Abstract] |
Schedule of Changes in AOCI balance by Component | Changes in the AOCI balance by component are shown in the following table. Amounts reclassified in pension and other post-employment benefits to net earnings relate to the amortization of actuarial losses and are included in other income - net on the consolidated income statements. See Note 6, Employee Benefit Plans, for further information. Interest rate derivatives consist of forward starting interest rate swaps classified as cash flow hedges. See Note 7, Debt and Credit Agreements for further information. Other primarily represents CSX's share of AOCI of equity method investees. Amounts reclassified in other to net earnings are included in materials, supplies and other or equipment and other rents on the consolidated income statements.
| Pension and Other Post-Employment Benefits | Interest Rate Derivatives | Other | Accumulated Other Comprehensive Income (Loss)
(Dollars in millions) |  |  |  |
Balance December 31, 2020, Net of Tax | $ | (598) |  | $ | 62 |  | $ | (62) |  | $ | (598) |
Other Comprehensive Income (Loss) |  |  |  |
Income Before Reclassifications | — |  | 73 |  | — |  | 73 |
Amounts Reclassified to Net Earnings | 17 |  | — |  | (3) |  | 14 |
Tax (Expense) Benefit | (3) |  | (17) |  | 1 |  | (19) |
Total Other Comprehensive Income (Loss) | 14 |  | 56 |  | (2) |  | 68 |
Balance March 31, 2021, Net of Tax | $ | (584) |  | $ | 118 |  | $ | (64) |  | $ | (530) |

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