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Investments, Equity Method and Joint Ventures (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Mar. 29, 2022
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			$ 184	$ 131
Equity in losses (earnings) of unconsolidated entities			28	(48)	$ (131)
Dividends received from unconsolidated entities			3	51	101
Payments to Acquire Equity Method Investments			22	39	5
Title Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			157	102
Noncash or Part Noncash Acquisition, Investments Acquired		$ 90
Guaranteed Rate Affinity | Title Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			72	94
Equity in losses (earnings) of unconsolidated entities			22	(49)	(126)
Dividends received from unconsolidated entities			$ 0	44	96
Equity Method Investment, Ownership Percentage			49.90%
Title Insurance Underwriter Joint Venture
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage			26.00%			30.00%
Equity Method Investment, Realized Gain (Loss) on Disposal	$ 4
Title Insurance Underwriter Joint Venture | Title Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			$ 75	0
Equity in losses (earnings) of unconsolidated entities			$ (6)
Dividends received from unconsolidated entities		$ 12
Equity Method Investment, Ownership Percentage		30.00%	26.00%
Other Title Group's Equity Method Investments | Title Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			$ 10	8
Equity in losses (earnings) of unconsolidated entities			(5)	(6)	(5)
Dividends received from unconsolidated entities			3	7	5
Owned Brokerage Group's Equity Method Investments | Owned Brokerage Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investments			27	29
Equity in losses (earnings) of unconsolidated entities			17	7	0
Payments to Acquire Equity Method Investments			19	$ 34	$ 2
RealSure Joint Venture | Owned Brokerage Group
Schedule of Equity Method Investments [Line Items]
Other than Temporary Impairment Losses, Investments			$ (4)
Equity Method Investment, Ownership Percentage			49.00%
Real Estate Auction Joint Venture | Owned Brokerage Group
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Ownership Percentage			50.00%

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