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Income Taxes - Components of the deferred tax assets and liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred tax assets |  |
Unearned premium reserves | $ 594 | $ 545
Accrued compensation | 145 | 137
Pension | 192 | 86
Discount on loss reserves | 67 | 53
Net operating loss carryover | 50 | 50
Other assets | 57 | 49
Other postretirement benefits | 45 | 48
Total deferred tax assets | 1,150 | 968
Deferred tax liabilities |  |
DAC | (854) | (770)
Unrealized net capital gains | (2) | (422)
Life and annuity reserves | (194) | (241)
Intangible assets | (145) | (113)
Investments | (278) | (106)
Other liabilities | (102) | (98)
Total deferred tax liabilities | (1,575) | (1,750)
Net deferred tax liability | $ (425) | $ (782)

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