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Goodwill (Carrying Amount of Goodwill by Reportable Segment) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | $ 1,588 | $ 1,379
Acquisitions | 217 | 209
Transfers | 0 |
Foreign currency translation | (7) |
Accumulated impairment losses Ending Balance | (34) |
Goodwill, Ending Balance | 1,798 | 1,588
Title Insurance and Services |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 1,575 | 1,366
Acquisitions | 217 | 209
Transfers | (28) |
Foreign currency translation | (7) |
Accumulated impairment losses Ending Balance | 0 |
Goodwill, Ending Balance | 1,757 | 1,575
Specialty Insurance |  |
Goodwill [Line Items] |  |
Goodwill, Beginning Balance | 13 | 13
Acquisitions | 0 | 0
Transfers | 28 |
Foreign currency translation | 0 |
Accumulated impairment losses Ending Balance | (34) |
Goodwill, Ending Balance | $ 41 | $ 13

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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