Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Operating Activities
Net income		$ 1,299	$ 116
Net (loss) income from discontinued operations		3	11
Net income from continuing operations		1,296	105
Adjustments to reconcile net income from continuing operations to net cash attributable to operating activities:
Deferred tax expense (benefit)		327	(1)
Net gain on mortgage loans held for sale		(1,833)	(1,594)
Provision for servicing and non-servicing reserves		28	18
Fair value changes and amortization of mortgage servicing rights		296	1,332
Fair value changes in MSR related liabilities		(7)	(122)
Depreciation and amortization for property and equipment and intangible assets		45	55
Gain on sale of business		(494)	0
Loss on redemption of unsecured senior notes		0	52
Other operating activities		36	45
Repurchases of forward loan assets out of Ginnie Mae securitizations		(8,530)	(3,173)
Mortgage loans originated and purchased for sale, net of fees		(67,507)	(38,709)
Sales proceeds and loan payment proceeds for mortgage loans held for sale		74,948	43,046
Changes in assets and liabilities:
Advances and other receivables		(41)	172
Other assets		46	31
Payables and other liabilities		7	(157)
Net cash attributable to operating activities - continuing operations		(1,383)	1,100
Net cash attributable to operating activities - discontinued operations		613	778
Net cash attributable to operating activities		(770)	1,878
Investing Activities
Sale of business, net of cash divested		432	0
Property and equipment additions, net of disposals		(33)	(43)
Purchase of forward mortgage servicing rights		(431)	(39)
Proceeds on sale of forward mortgage servicing rights		13	44
Other investing activities		1	0
Net cash attributable to investing activities - continuing operations		(18)	(38)
Net cash attributable to investing activities - discontinued operations		1,029	0
Net cash attributable to investing activities		1,011	(38)
Financing Activities
Increase (decrease) in advance and warehouse facilities		1,950	(14)
Settlements and repayments of excess spread financing		(118)	(159)
Issuance of unsecured senior notes		0	1,450
Redemption and repayment of unsecured senior notes		0	(1,686)
Repurchase of common stock		(516)	(24)
Retirement of preferred stock		(28)	0
Other financing activities		(33)	(21)
Net cash attributable to financing activities - continuing operations		1,255	(454)
Net cash attributable to financing activities - discontinued operations		(1,495)	(823)
Net cash attributable to financing activities		(240)	(1,277)
Net increase in cash, cash equivalents, and restricted cash		1	563
Cash, cash equivalents, and restricted cash - beginning of period		913	612
Cash, cash equivalents, and restricted cash - end of period(1)	[1]	914	1,175
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Equity consideration received from sale of business		53	0
Purchase of forward mortgage servicing rights		12	0
Forward mortgage servicing rights sales price holdback		$ 2	$ 0

[1] The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the condensed consolidated balance sheets. September 30, 2021September 30, 2020Cash and cash equivalents$731 $946 Restricted cash118 152 Restricted cash within assets of discontinued operations65 77 Total cash, cash equivalents, and restricted cash$914 $1,175