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Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 455	$ 421
Interest and investment income	760	710
Recognized gains and losses, net	(287)	275
Total revenues	2,729	3,299
Title
Disaggregation of Revenue [Line Items]
Loan subservicing revenue	67	66
Title | Direct title insurance premiums
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	510	440
Title | Agency title insurance premiums
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	681	593
Title | Home warranty
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	36	32
Title | Insurance contracts
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1,732	1,806
Title | Escrow fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	187	167
Title | Other title-related fees and income
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	152	145
Title | ServiceLink, excluding title premiums, escrow fees, and subservicing fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	83	74
F&G | Life insurance premiums, insurance and investment product fees, and other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	505	741
Corporate and other | Real estate technology
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	33	35
Corporate and other | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 2	$ 21

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