Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Title premiums	$ 1,278	$ 992
Other revenues	601	534
Revenues from external customers	1,879	1,526
Interest and investment income, including realized gains and losses	(267)	196
Total revenues	1,612	1,722
Depreciation and amortization	43	44
Interest expense	12	12
Loss before income taxes and equity in earnings of unconsolidated affiliates	(86)	264
Income tax benefit	(28)	65
(Loss) earnings before equity in earnings of unconsolidated affiliates	(58)	199
Equity in earnings of unconsolidated affiliates	1	7
Net (loss) earnings	(57)	206
Assets	10,204	9,647	$ 10,677
Goodwill	2,726	2,727	$ 2,727
Corporate and Other
Segment Reporting Information [Line Items]
Title premiums	0	0
Other revenues	(9)	53
Revenues from external customers	(9)	53
Interest and investment income, including realized gains and losses	(2)	6
Total revenues	(11)	59
Depreciation and amortization	6	5
Interest expense	12	12
Loss before income taxes and equity in earnings of unconsolidated affiliates	(33)	(28)
Income tax benefit	(9)	(6)
(Loss) earnings before equity in earnings of unconsolidated affiliates	(24)	(22)
Equity in earnings of unconsolidated affiliates	0	0
Net (loss) earnings	(24)	(22)
Assets	1,476	1,080
Goodwill	266	264
Operating Segments | Title
Segment Reporting Information [Line Items]
Title premiums	1,278	992
Other revenues	610	481
Revenues from external customers	1,888	1,473
Interest and investment income, including realized gains and losses	(265)	190
Total revenues	1,623	1,663
Depreciation and amortization	37	39
Interest expense	0	0
Loss before income taxes and equity in earnings of unconsolidated affiliates	(53)	292
Income tax benefit	(19)	71
(Loss) earnings before equity in earnings of unconsolidated affiliates	(34)	221
Equity in earnings of unconsolidated affiliates	1	7
Net (loss) earnings	(33)	228
Assets	8,728	8,567
Goodwill	$ 2,460	$ 2,463