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Segment Financial Information (Schedule of Total Revenues From External Customers And Long-Lived Assets) (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Revenues From External Customers And Long Lived Assets [Line Items]      
Revenues from external customers $ 7,605 $ 9,221 $ 7,086
Domestic | Title Insurance and Services      
Revenues From External Customers And Long Lived Assets [Line Items]      
Revenues from external customers 7,131 7,872 6,193
Long-lived assets 1,001 945 957
Foreign | Title Insurance and Services      
Revenues From External Customers And Long Lived Assets [Line Items]      
Revenues from external customers 416 448 342
Long-lived assets $ 51 $ 51 $ 60