Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Operating Activities
Net income		$ 669		$ 500		$ 923
Adjustments to reconcile net income to net cash attributable to operating activities:
Deferred tax expense		241		135		289
Net gain on mortgage loans held for sale		(437)		(354)		(599)
Provision for servicing and non-servicing reserves		24		40		30
Fair value changes in mortgage servicing rights		273		483		(549)
Fair value changes in MSR related liabilities		18		18		142
Depreciation and amortization for property and equipment and intangible assets		44		38		37
Adjustment/recognition of bargain purchase gain		(4)		(96)		0
Loss on MSR hedging activities		517		68		332
Loss (gain) on MSR and excess yield sales		9		(23)		3
Gain on disposition of assets		0		0		(223)
Other operating activities		104		105		96
Repurchases of loan assets out of Ginnie Mae securitizations		(1,670)		(1,234)		(3,067)
Mortgage loans originated and purchased for sale, net of fees		(23,022)		(12,805)		(28,309)
Sales proceeds and loan payment proceeds for mortgage loans held for sale		23,492		14,130		34,461
Changes in assets and liabilities:
Advances and other receivables		(373)		28		153
Other assets		(106)		(6)		278
Payables and other liabilities		(511)		(131)		(230)
Net cash attributable to operating activities		(724)		896		3,767
Investing Activities
Acquisitions of business, net of cash acquired		0		(522)		0
Asset acquisition transactions		(1,311)		(34)		0
Purchase of mortgage servicing rights		(1,906)		(1,850)		(1,595)
Proceeds on sale of mortgage servicing rights and excess yield		588		603		290
Property and equipment additions, net of disposals		(38)		(18)		(17)
Other investing activities		(30)		(15)		0
Net cash attributable to investing activities		(2,697)		(1,836)		(1,322)
Financing Activities
Increase (decrease) in advance, warehouse and MSR facilities		2,197		1,375		(2,113)
Settlements and repayment of excess spread financing		(66)		(80)		(392)
Repurchase of common stock		(147)		(276)		(239)
Issuance of unsecured senior debt		1,750		0		0
Other financing activities		(80)		(41)		(40)
Net Cash Provided by (Used in) Financing Activities, Total		3,654		978		(2,784)
Net increase (decrease) in cash, cash equivalents and restricted cash		233		38		(339)
Cash, cash equivalents and restricted cash - beginning of year		740	[1]	702	[1]	1,041
Cash, cash equivalents and restricted cash - end of period	[1]	973		740		702
Supplemental Disclosures of Cash Activities
Cash paid for interest expense on unsecured senior notes, excess spread financing, and advance, warehouse and MSR facilities		840		441		303
Net cash (refund) paid for income taxes		(1)		26		17
Supplemental Disclosures of Non-cash Investing and Financing Activities
Equity consideration received from disposition of assets		0		0		250
Sale of mortgage servicing rights holdback		16		16		15
Excise tax from repurchase of common stock		1		2		0
Purchase of mortgage servicing rights holdback		$ 54		$ 149		$ 11

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the consolidated balance sheets. December 31,
2024December 31,
2023December 31,
2022Cash and cash equivalents$753 $571 $527 Restricted cash220 169 175 Total cash, cash equivalents and restricted cash$973 $740 $702