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v3.23.3

Segments of Operations - Earnings before income taxes by segment and sub-segment (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Segment Reporting Information [Line Items] |  |  |  |
Earnings before realized gains (losses) and income taxes | $ 242 | $ 245 | $ 809 | $ 920
Realized gains (losses) on securities | (19) | (35) | (67) | (143)
Realized loss on subsidiary | (4) | 0 | (4) | 0
Earnings before income taxes | 219 | 210 | 738 | 777
Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | 142 | 155 | 420 | 558
Investment and other income, net | 156 | 134 | 527 | 498
Earnings before realized gains (losses) and income taxes | 298 | 289 | 947 | 1,056
Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Earnings before realized gains (losses) and income taxes | (56) | (44) | (138) | (136)
Property and transportation | Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | 42 | 39 | 117 | 140
Specialty casualty | Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | 78 | 118 | 261 | 372
Specialty financial | Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | 29 | 15 | 65 | 81
Other specialty | Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | (6) | (14) | (22) | (30)
Other lines | Property and Casualty Insurance |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Property and casualty insurance underwriting | $ (1) | $ (3) | $ (1) | $ (5)

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