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Goodwill (Carrying Amount of Goodwill by Reportable Segment) (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Goodwill [Line Items] |  |  |
Goodwill, Gross Beginning Balance | $ 1,413 | $ 1,151 |
Accumulated impairment losses Beginning Balance | (34) | 0 |
Goodwill, Beginning Balance | 1,379 | 1,151 |
Acquisitions | 209 | 261 |
Dispositions |  | (1) |
Impairment losses |  | (34) |
Foreign currency translation |  | 2 |
Goodwill, Gross Ending Balance | 1,622 | 1,413 | $ 1,151
Accumulated impairment losses Ending Balance | (34) | (34) | 0
Goodwill, Ending Balance | 1,588 | 1,379 | 1,151
Title Insurance and Services |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Gross Beginning Balance | 1,366 | 1,104 |
Accumulated impairment losses Beginning Balance | 0 | 0 |
Goodwill, Beginning Balance | 1,366 | 1,104 |
Acquisitions | 209 | 261 |
Dispositions |  | (1) |
Impairment losses | 0 | 0 | 0
Foreign currency translation |  | 2 |
Goodwill, Gross Ending Balance | 1,575 | 1,366 | 1,104
Accumulated impairment losses Ending Balance | 0 | 0 | 0
Goodwill, Ending Balance | 1,575 | 1,366 | 1,104
Specialty Insurance |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Gross Beginning Balance | 47 | 47 |
Accumulated impairment losses Beginning Balance | (34) | 0 |
Goodwill, Beginning Balance | 13 | 47 |
Acquisitions | 0 | 0 |
Dispositions |  | 0 |
Impairment losses |  | (34) |
Foreign currency translation |  | 0 |
Goodwill, Gross Ending Balance | 47 | 47 | 47
Accumulated impairment losses Ending Balance | (34) | (34) | 0
Goodwill, Ending Balance | $ 13 | $ 13 | $ 47

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