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Income Taxes - Components of the deferred tax assets and liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets |  |
Unearned premium reserves | $ 642 | $ 594
Pension | 197 | 192
Accrued compensation | 147 | 145
Discount on loss reserves | 78 | 67
Other postretirement benefits | 49 | 45
Net operating loss carryover | 26 | 50
Other assets | 54 | 57
Total deferred tax assets | 1,193 | 1,150
Deferred tax liabilities |  |
DAC | (847) | (854)
Unrealized net capital gains | (507) | (2)
Investments | (567) | (278)
Life and annuity reserves | (222) | (194)
Intangible assets | (98) | (145)
Other liabilities | (106) | (102)
Total deferred tax liabilities | (2,347) | (1,575)
Net deferred tax liability | $ (1,154) | $ (425)

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