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v3.20.4

Segments of Operations - Earnings before income taxes by segment and sub-segment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |
Earnings before realized gains (losses) and income taxes | $ 536 | $ 821 | $ 905
Realized gains (losses) on securities | 289 | 287 | (266)
Subsidiaries | 23 | 0 | 0
Earnings before income taxes | 848 | 1,108 | 639
Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | 224 | 212 | 302
Investment and other income, net | 360 | 437 | 407
Earnings before realized gains (losses) and income taxes | 584 | 649 | 709
Annuity |  |  |
Segment Reporting Information [Line Items] |  |  |
Earnings before realized gains (losses) and income taxes | 171 | 362 | 361
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Earnings before realized gains (losses) and income taxes | (219) | (190) | (165)
Property and transportation | Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | 181 | 79 | 120
Specialty casualty | Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | 223 | 175 | 141
Specialty financial | Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | 50 | 92 | 66
Other specialty | Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | (28) | (21) | (5)
Other lines | Property and casualty insurance |  |  |
Segment Reporting Information [Line Items] |  |  |
Property and casualty insurance underwriting | $ (202) | $ (113) | $ (20)

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