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Reporting Segments - Impacts of Tax Legislation (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | $ 497 | $ 1,504 |
Tax Legislation expense (benefit) | (29) | (509) |
Total income tax expense | 468 | 995 | $ 842
Property-Liability |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | 608 | 1,321 |
Tax Legislation expense (benefit) | 5 | (36) |
Total income tax expense | 613 | 1,285 | 859
Service Businesses |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | (23) | (57) |
Tax Legislation expense (benefit) | 4 | (137) |
Total income tax expense | (19) | (194) | 2
Allstate Life |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | 59 | 112 |
Tax Legislation expense (benefit) | 16 | (338) |
Total income tax expense | 75 | (226) | 94
Allstate Benefits |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | 32 | 55 |
Tax Legislation expense (benefit) | 0 | (54) |
Total income tax expense | 32 | 1 | 52
Allstate Annuities |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | 3 | 124 |
Tax Legislation expense (benefit) | (69) | (182) |
Total income tax expense | (66) | (58) | 36
Corporate and Other |  |  |
Segment Reporting Information |  |  |
Income tax expense (benefit) before Tax Legislation | (182) | (51) |
Tax Legislation expense (benefit) | 15 | 238 |
Total income tax expense | $ (167) | $ 187 | $ (201)

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
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