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Other Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Pre-tax |  |  |
Other comprehensive (loss) income | $ (1,094) | $ 481 | $ 625
After-tax |  |  |
Other comprehensive (loss) income | (861) | 312 | 409
Tax |  |  |
Other comprehensive (loss) income | 233 | (169) | (216)
Unrealized net capital gains and losses |  |  |
Pre-tax |  |  |
Unrealized net holding during the period | (1,142) | 866 | 486
Less: reclassification adjustment | (186) | 374 | (180)
Other comprehensive (loss) income | (956) | 492 | 666
After-tax |  |  |
Unrealized net holding during the period | (901) | 562 | 316
Less: reclassification adjustment | (147) | 243 | (117)
Other comprehensive (loss) income | (754) | 319 | 433
Tax |  |  |
Unrealized net holding during the period | 241 | (304) | (170)
Less: reclassification adjustment | 39 | (131) | 63
Other comprehensive (loss) income | 202 | (173) | (233)
Unrealized foreign currency translation adjustments |  |  |
Pre-tax |  |  |
Other comprehensive (loss) income | (61) | 69 | 14
After-tax |  |  |
Other comprehensive (loss) income | (48) | 45 | 9
Tax |  |  |
Other comprehensive (loss) income | 13 | (24) | (5)
Unamortized pension and other postretirement prior service credit |  |  |
Pre-tax |  |  |
Unrealized net holding during the period | 0 | 1 | 22
Less: reclassification adjustment | 77 | 81 | 77
Other comprehensive (loss) income | (77) | (80) | (55)
After-tax |  |  |
Unrealized net holding during the period | 2 | 1 | 17
Less: reclassification adjustment | 61 | 53 | 50
Other comprehensive (loss) income | (59) | (52) | (33)
Tax |  |  |
Unrealized net holding during the period | 2 | 0 | (5)
Less: reclassification adjustment | (16) | (28) | (27)
Other comprehensive (loss) income | $ 18 | $ 28 | $ 22

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