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Reportable Segments (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Schedule of business segments revenue disclosures |
Reportable segments revenue information
|  | For the years ended December 31,
($ in millions) |  | 2020 |  | 2019 |  | 2018
Property-Liability |  |  |  |  |  |
Insurance premiums |  |  |  |  |  |
Auto |  | $ | 24,640 |  |  | $ | 24,188 |  |  | $ | 22,970 |
Homeowners |  | 8,254 |  |  | 7,912 |  |  | 7,517 |
Other personal lines |  | 1,919 |  |  | 1,861 |  |  | 1,808 |
Commercial lines |  | 767 |  |  | 882 |  |  | 655 |
Allstate Protection |  | 35,580 |  |  | 34,843 |  |  | 32,950 |
Discontinued Lines and Coverages |  | — |  |  | — |  |  | — |
Total Property-Liability insurance premiums |  | 35,580 |  |  | 34,843 |  |  | 32,950 |
Other revenue |  | 736 |  |  | 741 |  |  | 738 |
Net investment income |  | 1,421 |  |  | 1,533 |  |  | 1,464 |
Realized capital gains (losses) |  | 990 |  |  | 1,470 |  |  | (639) |
Total Property-Liability |  | 38,727 |  |  | 38,587 |  |  | 34,513 |
Protection Services |  |  |  |  |  |
Consumer product protection plans |  | 909 |  |  | 633 |  |  | 503 |
Roadside assistance |  | 188 |  |  | 238 |  |  | 263 |
Finance and insurance products |  | 396 |  |  | 362 |  |  | 332 |
Intersegment premiums and service fees (1) |  | 147 |  |  | 154 |  |  | 122 |
Other revenue (2) |  | 208 |  |  | 188 |  |  | 82 |
Net investment income |  | 44 |  |  | 42 |  |  | 27 |
Realized capital gains (losses) |  | 30 |  |  | 32 |  |  | (11) |
Total Protection Services |  | 1,922 |  |  | 1,649 |  |  | 1,318 |
Allstate Life |  |  |  |  |  |
Traditional life insurance premiums |  | 633 |  |  | 630 |  |  | 600 |
Accident and health insurance premiums |  | 2 |  |  | 2 |  |  | 2 |
Interest-sensitive life insurance contract charges |  | 705 |  |  | 711 |  |  | 713 |
Other revenue |  | 121 |  |  | 125 |  |  | 119 |
Net investment income |  | 502 |  |  | 514 |  |  | 505 |
Realized capital gains (losses) |  | (10) |  |  | 1 |  |  | (14) |
Total Allstate Life |  | 1,953 |  |  | 1,983 |  |  | 1,925 |
Allstate Benefits |  |  |  |  |  |
Traditional life insurance premiums |  | 46 |  |  | 43 |  |  | 44 |
Accident and health insurance premiums |  | 926 |  |  | 988 |  |  | 980 |
Interest-sensitive life insurance contract charges |  | 122 |  |  | 114 |  |  | 111 |
Net investment income |  | 78 |  |  | 83 |  |  | 77 |
Realized capital gains (losses) |  | 8 |  |  | 12 |  |  | (9) |
Total Allstate Benefits |  | 1,180 |  |  | 1,240 |  |  | 1,203 |
Allstate Annuities |  |  |  |  |  |
Fixed annuities contract charges |  | 10 |  |  | 13 |  |  | 15 |
Net investment income |  | 761 |  |  | 917 |  |  | 1,096 |
Realized capital gains (losses) |  | 279 |  |  | 346 |  |  | (166) |
Total Allstate Annuities |  | 1,050 |  |  | 1,276 |  |  | 945 |
Corporate and Other |  |  |  |  |  |
Net investment income |  | 47 |  |  | 70 |  |  | 71 |
Realized capital gains (losses) |  | 59 |  |  | 24 |  |  | (38) |
Total Corporate and Other |  | 106 |  |  | 94 |  |  | 33 |
Intersegment eliminations (1) |  | (147) |  |  | (154) |  |  | (122) |
Consolidated revenues |  | $ | 44,791 |  |  | $ | 44,675 |  |  | $ | 39,815 |
(1)Intersegment insurance premiums and service fees are primarily related to Arity and Allstate Roadside and are eliminated in the consolidated financial statements. (2)Other revenue is primarily related to Allstate Identity Protection, Allstate Dealer Services, and Allstate Protection Plans.
Schedule of business segments net income disclosures |
Reportable segments financial performance
|  | For the years ended December 31,
($ in millions) |  | 2020 |  | 2019 |  | 2018
Property-Liability |  |  |  |  |  |
Allstate Protection |  | $ | 4,566 |  |  | $ | 2,912 |  |  | $ | 2,343 |
Discontinued Lines and Coverages |  | (144) |  |  | (108) |  |  | (90) |
Total underwriting income |  | 4,422 |  |  | 2,804 |  |  | 2,253 |
Net investment income |  | 1,421 |  |  | 1,533 |  |  | 1,464 |
Income tax expense on operations |  | (1,166) |  |  | (887) |  |  | (747) |
Realized capital gains (losses), after-tax |  | 774 |  |  | 1,161 |  |  | (500) |
Tax Legislation expense |  | — |  |  | — |  |  | (5) |
Property-Liability net income applicable to common shareholders |  | 5,451 |  |  | 4,611 |  |  | 2,465 |
Protection Services |  |  |  |  |  |
Adjusted net income |  | 153 |  |  | 38 |  |  | 8 |
Realized capital gains (losses), after-tax |  | 23 |  |  | 25 |  |  | (9) |
Amortization of purchased intangibles, after-tax |  | (84) |  |  | (97) |  |  | (74) |
Impairment of purchased intangibles, after-tax |  | — |  |  | (43) |  |  | — |
Tax Legislation expense |  | — |  |  | — |  |  | (4) |
Protection Services net income (loss) applicable to common shareholders |  | 92 |  |  | (77) |  |  | (79) |
Allstate Life |  |  |  |  |  |
Adjusted net income |  | 194 |  |  | 261 |  |  | 295 |
Realized capital gains (losses), after-tax |  | (9) |  |  | — |  |  | (11) |
Valuation changes on embedded derivatives that are not hedged, after-tax |  | (34) |  |  | (9) |  |  | — |
DAC and DSI amortization related to realized capital gains and losses and valuation changes on embedded derivatives that are not hedged, after-tax |  | 8 |  |  | (5) |  |  | (8) |
Tax Legislation expense |  | — |  |  | — |  |  | (16) |
Allstate Life net income applicable to common shareholders |  | 159 |  |  | 247 |  |  | 260 |
Allstate Benefits |  |  |  |  |  |
Adjusted net income |  | 96 |  |  | 115 |  |  | 124 |
Realized capital gains (losses), after-tax |  | 7 |  |  | 9 |  |  | (7) |
DAC and DSI amortization related to realized capital gains and losses, after-tax |  | — |  |  | — |  |  | 1 |
Tax Legislation benefit |  | — |  |  | — |  |  | — |
Allstate Benefits net income applicable to common shareholders |  | 103 |  |  | 124 |  |  | 118 |
Allstate Annuities |  |  |  |  |  |
Adjusted net (loss) income |  | (53) |  |  | 10 |  |  | 131 |
Realized capital gains (losses), after-tax |  | 221 |  |  | 274 |  |  | (131) |
Valuation changes on embedded derivatives that are not hedged, after-tax |  | (2) |  |  | (6) |  |  | 3 |
Premium deficiency for immediate annuities, after-tax (1) |  | (178) |  |  | — |  |  | — |
Gain on disposition of operations, after-tax |  | 3 |  |  | 4 |  |  | 4 |
Tax Legislation benefit |  | — |  |  | — |  |  | 69 |
Allstate Annuities net (loss) income applicable to common shareholders |  | (9) |  |  | 282 |  |  | 76 |
Corporate and Other |  |  |  |  |  |
Adjusted net loss |  | (428) |  |  | (438) |  |  | (406) |
Realized capital gains (losses), after-tax |  | 47 |  |  | 19 |  |  | (30) |
Pension and other postretirement remeasurement gains (losses), after-tax |  | 39 |  |  | (90) |  |  | (370) |
Curtailment gain, after-tax |  | 7 |  |  | — |  |  | — |
Business combination expenses, after-tax |  | — |  |  | — |  |  | (7) |
Tax Legislation expense |  | — |  |  | — |  |  | (15) |
Corporate and Other net loss applicable to common shareholders |  | (335) |  |  | (509) |  |  | (828) |
Consolidated net income applicable to common shareholders |  | $ | 5,461 |  |  | $ | 4,678 |  |  | $ | 2,012 |
(1) Contract benefits increased by $225 million, pre-tax, for premium deficiency on immediate annuities with life contingencies due to updated investment and actuarial assumptions in the third quarter of 2020.
Additional significant financial performance data |
Additional significant financial performance data |  |  |  |  |  |
|  | For the years ended December 31,
($ in millions) |  | 2020 |  | 2019 |  | 2018
Amortization of DAC |  |  |  |  |  |
Property-Liability |  | $ | 4,642 |  |  | $ | 4,649 |  |  | $ | 4,475 |
Protection Services |  | 658 |  |  | 543 |  |  | 463 |
Allstate Life |  | 149 |  |  | 173 |  |  | 132 |
Allstate Benefits |  | 177 |  |  | 161 |  |  | 145 |
Allstate Annuities |  | 4 |  |  | 7 |  |  | 7 |
Consolidated |  | $ | 5,630 |  |  | $ | 5,533 |  |  | $ | 5,222 |
Income tax expense (benefit) |  |  |  |  |  |
Property-Liability |  | $ | 1,382 |  |  | $ | 1,196 |  |  | $ | 613 |
Protection Services |  | 26 |  |  | (18) |  |  | (19) |
Allstate Life |  | 17 |  |  | 53 |  |  | 75 |
Allstate Benefits |  | 28 |  |  | 35 |  |  | 32 |
Allstate Annuities |  | (7) |  |  | 73 |  |  | (66) |
Corporate and Other |  | (63) |  |  | (97) |  |  | (167) |
Consolidated |  | $ | 1,383 |  |  | $ | 1,242 |  |  | $ | 468 |
Summarized data for total assets and investments |
Reportable segment total assets, investments and deferred policy acquisition costs (1) |  |  |  |
|  | As of December 31, |  |  |  |
($ in millions) |  | 2020 |  | 2019 |  |  |  |
Assets |  |  |  |  |  |  |  |
Property-Liability |  | $ | 69,171 |  |  | $ | 67,243 |  |  |  |  |
Protection Services |  | 6,177 |  |  | 5,746 |  |  |  |  |
Allstate Life |  | 15,051 |  |  | 14,771 |  |  |  |  |
Allstate Benefits |  | 2,905 |  |  | 2,915 |  |  |  |  |
Allstate Annuities |  | 27,080 |  |  | 26,914 |  |  |  |  |
Corporate and Other |  | 5,603 |  |  | 2,361 |  |  |  |  |
Consolidated |  | $ | 125,987 |  |  | $ | 119,950 |  |  |  |  |
Investments |  |  |  |  |  |  |  |
Property-Liability |  | $ | 50,134 |  |  | $ | 48,414 |  |  |  |  |
Protection Services |  | 1,822 |  |  | 1,544 |  |  |  |  |
Allstate Life |  | 12,406 |  |  | 11,914 |  |  |  |  |
Allstate Benefits |  | 2,012 |  |  | 1,941 |  |  |  |  |
Allstate Annuities |  | 22,291 |  |  | 22,221 |  |  |  |  |
Corporate and Other |  | 5,572 |  |  | 2,328 |  |  |  |  |
Consolidated |  | $ | 94,237 |  |  | $ | 88,362 |  |  |  |  |
Deferred policy acquisition costs |  |  |  |  |  |  |  |
Property-Liability |  | $ | 1,608 |  |  | $ | 1,624 |  |  |  |  |
Protection Services |  | 1,696 |  |  | 1,448 |  |  |  |  |
Allstate Life |  | 909 |  |  | 1,079 |  |  |  |  |
Allstate Benefits |  | 470 |  |  | 527 |  |  |  |  |
Allstate Annuities |  | 17 |  |  | 21 |  |  |  |  |
Consolidated |  | $ | 4,700 |  |  | $ | 4,699 |  |  |  |  |
(1)The balances reflect the elimination of related party investments between segments.

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