ACCUMULATED OTHER COMPREHENSIVE LOSS The changes in each component of AOCL for the years ended December 31, 2022, 2021 and 2020 were as follows:
| | | | | | | | | | | | Accumulated Other Comprehensive Loss | 2022 | 2021 | 2020 | In millions | Cumulative Translation Adjustment | | | | Beginning balance | $ | (53) | | $ | (55) | | $ | (56) | | Unrealized gains (losses) on foreign currency translation | — | | 2 | | — | | | | | | | | | | (Gains) losses reclassified from AOCL to net income 1 | (1) | | — | | 1 | | Other comprehensive income (loss), net of tax | (1) | | 2 | | 1 | | Ending balance | $ | (54) | | $ | (53) | | $ | (55) | | Pension and Other Postretirement Benefits | | | | Beginning balance | $ | (1,498) | | $ | (1,715) | | $ | (1,609) | | Gains (losses) arising during the period | 96 | | 180 | | (242) | | Tax (expense) benefit | (22) | | (43) | | 57 | | Net gains (losses) arising during the period | 74 | | 137 | | (185) | | Amortization of net loss and prior service credit reclassified from AOCL to net income 2 | 98 | | 104 | | 103 | | Tax expense (benefit) 3 | (22) | | (24) | | (24) | | Net loss and prior service credit reclassified from AOCL to net income | 76 | | 80 | | 79 | | Other comprehensive income (loss), net of tax | 150 | | 217 | | (106) | | | | | | Ending balance | $ | (1,348) | | $ | (1,498) | | $ | (1,715) | | Total AOCL ending balance | $ | (1,402) | | $ | (1,551) | | $ | (1,770) | |
1.Reclassified to "Sundry income (expense) - net." 2.These AOCL components are included in the computation of net periodic benefit cost of the Corporation's defined benefit pension and other postretirement benefit plans. See Note 16 for additional information. 3.Reclassified to "Provision for income taxes."
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