Presented in the table below are the changes in accumulated other comprehensive loss by component, net of tax, for the three months ended March 31, 2025 and 2024, respectively: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Defined Benefit Pension Plans | | Gain (Loss) on Cash Flow Hedges | | Gain (Loss) on Fixed-Income Securities | | Accumulated Other Comprehensive Income (Loss) | | | Employee Benefit Plan Funded Status | | Amortization of Prior Service Cost | | Amortization of Actuarial Loss | | | | | Balance as of December 31, 2024 | $ | (95) | | | $ | 1 | | | $ | 74 | | | $ | 30 | | | $ | 2 | | | $ | 12 | | | Other comprehensive income (loss) before reclassifications | — | | | — | | | — | | | (8) | | | 2 | | | (6) | | | Amounts reclassified from accumulated other comprehensive income (loss) | — | | | — | | | — | | | — | | | (4) | | | (4) | | | Net other comprehensive loss | — | | | — | | | — | | | (8) | | | (2) | | | (10) | | | Balance as of March 31, 2025 | $ | (95) | | | $ | 1 | | | $ | 74 | | | $ | 22 | | | $ | — | | | $ | 2 | | | | | | | | | | | | | | | Balance as of December 31, 2023 | $ | (96) | | | $ | 1 | | | $ | 74 | | | $ | (9) | | | $ | 4 | | | $ | (26) | | | Other comprehensive income (loss) before reclassifications | — | | | — | | | — | | | 19 | | | (1) | | | 18 | | | Net other comprehensive income (loss) | — | | | — | | | — | | | 19 | | | (1) | | | 18 | | | Balance as of March 31, 2024 | $ | (96) | | | $ | 1 | | | $ | 74 | | | $ | 10 | | | $ | 3 | | | $ | (8) | |
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