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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement of Comprehensive Income [Abstract] |  |  |
Net earnings | $ 6,230 | $ 5,046 | $ 1,963
Postretirement benefit plans |  |  |
Net other comprehensive loss recognized during the period, net of tax benefit of $586 million in 2019, $136 million in 2018 and $375 million in 2017 | (2,182) | (501) | (1,380)
Amounts reclassified from accumulated other comprehensive loss, net of tax expense of $247 million in 2019, $327 million in 2018 and $437 million in 2017 | 908 | 1,202 | 802
Other, net | 41 | (75) | 141
Other comprehensive income (loss), net of tax | (1,233) | 626 | (437)
Comprehensive income | $ 4,997 | $ 5,672 | $ 1,526

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