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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Net Income | $ 326 | $ 83
Translation adjustments and gains (losses) from intra-entity transactions of a long-term investment nature |  |
Adjustments and gains (losses) arising during the period | 3 | (102)
Translation adjustments and gains (losses) from intra-entity transactions of a long-term investment nature, before tax | 3 | (102)
Tax (expense) benefit | 0 | 0
Translation adjustments and gains (losses) from intra-entity transactions of a long-term investment nature, net of tax | 3 | (102)
Changes in pension and post-retirement benefits |  |
Unrealized gains (losses) arising during period, before Tax | 47 | 0
Reclassification of (gains) losses into Net Income | 7 | 5
Changes in pension and post-retirement benefits, before Tax | 54 | 5
Tax (expense) benefit | (13) | (1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total | 41 | 4
Changes in derivative instruments |  |
Unrealized gains (losses) arising during the period | 24 | (77)
Reclassification of (gains) losses into Net Income | 4 | (6)
Changes in derivative instruments, before Tax | 28 | (83)
Tax (expense) benefit | (7) | 20
Changes in derivative instruments, net of tax | 21 | (63)
Other comprehensive income (loss), net of tax | 65 | (161)
Comprehensive Income (Loss) | $ 391 | $ (78)

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