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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Jan. 01, 2018
Accumulated Other Comprehensive Income (Loss) [Abstract] |  |  |  |  |  |  |
Cumulative Effect of New Accounting Principle in Period of Adoption |  |  |  |  |  |  | $ (14)
Foreign currency translation adjustments |  |  |  |  |  |  |
Beginning Balance | $ (463) | $ (375) | $ (441) | $ (294) |  |  |
Comprehensive income (loss) before reclassifications | (107) | (45) | (127) | (132) |  |  |
Income taxes associated with comprehensive income (loss) before reclassifications | (7) | 2 | (9) | 8 |  |  |
Reclassification from accumulated other comprehensive income (loss) | 0 | 0 | 0 | 0 |  |  |
Income taxes reclassified into net earnings | 0 | 0 | 0 | 0 |  |  |
Ending Balance | (577) | (418) | (577) | (418) |  |  |
Hedge instruments |  |  |  |  |  |  |
Beginning Balance | (1) | (3) | 0 | (1) |  |  |
Comprehensive income (loss) before reclassifications | 0 | 2 | (1) | (4) |  |  |
Income taxes associated with comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 1 |  |  |
Reclassification from accumulated other comprehensive income (loss) | 1 | 0 | 1 | 4 |  |  |
Income taxes reclassified into net earnings | 0 | 0 | 0 | (1) |  |  |
Ending Balance | 0 | (1) | 0 | (1) |  |  |
Defined benefit postretirement plans |  |  |  |  |  |  |
Beginning Balance | (208) | (207) | (235) | (198) |  |  |
Comprehensive income (loss) before reclassifications | 3 | (1) | 7 | 1 |  |  |
Income taxes associated with comprehensive income (loss) before reclassifications | (1) | 0 | (2) | 0 |  |  |
Reclassification from accumulated other comprehensive income (loss) | 3 | 2 | 34 | 6 |  |  |
Income taxes reclassified into net earnings | (1) | (1) | (8) | (2) |  |  |
Ending Balance | (204) | (207) | (204) | (207) |  |  |
Other |  |  |  |  |  |  |
Beginning Balance | 2 | 3 | 2 | 3 |  |  |
Comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 0 |  |  |
Income taxes associated with comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 0 |  |  |
Reclassification from accumulated other comprehensive income (loss) | 0 | 0 | 0 | 0 |  |  |
Income taxes reclassified into net earnings | 0 | 0 | 0 | 0 |  |  |
Ending Balance | 2 | 3 | 2 | 3 |  |  |
Total |  |  |  |  |  |  |
Beginning Balance | (670) | (582) | (674) | (490) |  |  |
Comprehensive income (loss) before reclassifications | (104) | (44) | (121) | (135) |  |  |
Income taxes associated with comprehensive income (loss) before reclassifications | (8) | 2 | (11) | 9 |  |  |
Reclassification from accumulated other comprehensive income (loss) | 4 | 2 | 35 | 10 |  |  |
Income taxes reclassified into net earnings | (1) | (1) | (8) | (3) |  |  |
Ending Balance | $ (670) | $ (582) | $ (674) | $ (490) | $ (779) | $ (623) |

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