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Reportable Segments (Tables) | 3 Months Ended
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Mar. 31, 2024
Segment Reporting [Abstract] |
Schedule of Reportable Segments Financial Performance | A reconciliation of these measures to net income (loss) applicable to common shareholders is provided below.
Reportable segments financial performance
|  | Three months ended March 31, |  |
($ in millions) |  | 2024 |  | 2023 |  |  |  |
Underwriting income (loss) by segment |  |  |  |  |  |  |  |
Allstate Protection |  | $ | 903 |  |  | $ | (998) |  |  |  |  |
Run-off Property-Liability |  | (5) |  |  | (3) |  |  |  |  |
Total Property-Liability |  | 898 |  |  | (1,001) |  |  |  |  |
Adjusted net income (loss) by segment, after-tax |  |  |  |  |  |  |  |
Protection Services |  | 54 |  |  | 34 |  |  |  |  |
Allstate Health and Benefits |  | 56 |  |  | 56 |  |  |  |  |
Corporate and Other |  | (106) |  |  | (89) |  |  |  |  |
Reconciling items |  |  |  |  |  |  |  |
Allstate Protection and Run-off Property-Liability net investment income |  | 702 |  |  | 509 |  |  |  |  |
Net gains (losses) on investments and derivatives |  | (164) |  |  | 14 |  |  |  |  |
Pension and other postretirement remeasurement gains (losses) |  | 2 |  |  | 53 |  |  |  |  |
Amortization of purchased intangibles (1) |  | (18) |  |  | (24) |  |  |  |  |
Gain (loss) on disposition |  | 4 |  |  | 9 |  |  |  |  |
Income tax (expense) benefit on reconciling items (2) |  | (259) |  |  | 92 |  |  |  |  |
Total reconciling items |  | 267 |  |  | 653 |  |  |  |  |
Less: Net loss attributable to noncontrolling interest (3) |  | (20) |  |  | (1) |  |  |  |  |
Net income (loss) applicable to common shareholders |  | $ | 1,189 |  |  | $ | (346) |  |  |  |  |
(1)Excludes amortization of purchased intangibles in Property-Liability, which is included above in underwriting income. (2)The tax computation of the reporting segments and income tax benefit (expense) on reconciling items to net income (loss) are computed discretely based on the tax law of the jurisdictions applicable to the reporting entities. (3)Reflects net loss attributable to noncontrolling interest in Property-Liability.
Schedule of Reportable Segments Revenue Information |
Reportable segments revenue information
($ in millions) |  | Three months ended March 31, |  |
| 2024 |  | 2023 |  |  |  |
Property-Liability |  |  |  |  |  |  |  |
Insurance premiums |  |  |  |  |  |  |  |
Auto |  | $ | 8,778 |  |  | $ | 7,908 |  |  |  |  |
Homeowners |  | 3,154 |  |  | 2,810 |  |  |  |  |
Other personal lines |  | 659 |  |  | 562 |  |  |  |  |
Commercial lines |  | 169 |  |  | 232 |  |  |  |  |
Other business lines |  | 140 |  |  | 123 |  |  |  |  |
Allstate Protection |  | 12,900 |  |  | 11,635 |  |  |  |  |
Run-off Property-Liability |  | — |  |  | — |  |  |  |  |
Total Property-Liability insurance premiums |  | 12,900 |  |  | 11,635 |  |  |  |  |
Other revenue |  | 430 |  |  | 353 |  |  |  |  |
Net investment income |  | 702 |  |  | 509 |  |  |  |  |
Net gains (losses) on investments and derivatives |  | (162) |  |  | 12 |  |  |  |  |
Total Property-Liability |  | 13,870 |  |  | 12,509 |  |  |  |  |
Protection Services |  |  |  |  |  |  |  |
Protection plans |  | 439 |  |  | 361 |  |  |  |  |
Roadside assistance |  | 47 |  |  | 49 |  |  |  |  |
Protection and insurance products |  | 126 |  |  | 128 |  |  |  |  |
Intersegment premiums and service fees (1) |  | 35 |  |  | 33 |  |  |  |  |
Other revenue |  | 85 |  |  | 84 |  |  |  |  |
Net investment income |  | 21 |  |  | 16 |  |  |  |  |
Net gains (losses) on investments and derivatives |  | (5) |  |  | (1) |  |  |  |  |
Total Protection Services |  | 748 |  |  | 670 |  |  |  |  |
Allstate Health and Benefits |  |  |  |  |  |  |  |
Employer voluntary benefits |  | 248 |  |  | 255 |  |  |  |  |
Group health |  | 118 |  |  | 107 |  |  |  |  |
Individual health |  | 112 |  |  | 101 |  |  |  |  |
Other revenue |  | 134 |  |  | 101 |  |  |  |  |
Net investment income |  | 23 |  |  | 19 |  |  |  |  |
Net gains (losses) on investments and derivatives |  | 2 |  |  | 2 |  |  |  |  |
Total Allstate Health and Benefits |  | 637 |  |  | 585 |  |  |  |  |
Corporate and Other |  |  |  |  |  |  |  |
Other revenue |  | 20 |  |  | 23 |  |  |  |  |
Net investment income |  | 18 |  |  | 31 |  |  |  |  |
Net gains (losses) on investments and derivatives |  | 1 |  |  | 1 |  |  |  |  |
Total Corporate and Other |  | 39 |  |  | 55 |  |  |  |  |
Intersegment eliminations (1) |  | (35) |  |  | (33) |  |  |  |  |
Consolidated revenues |  | $ | 15,259 |  |  | $ | 13,786 |  |  |  |  |
(1)Intersegment insurance premiums and service fees are primarily related to Arity and Allstate Roadside and are eliminated in the condensed consolidated financial statements.

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