Consolidated Statements of Cash Flows - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2018	Jul. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Activities
Net income attributable to Successor/Predecessor	$ 884
Adjustments to reconcile net income to net cash attributable to operating activities:
Provision for deferred income taxes	(1,021)
Net income (loss) attributable to non-controlling interests	0
Net gain on mortgage loans held for sale	(176)
Interest income on reverse mortgage interests	(206)
(Gain) loss on sale of assets	0
Loss on impairment of assets	0
MSL related increased obligation	0
Provision for servicing reserves	38
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities	225
Fair value changes in excess spread financing	5
Fair value changes in mortgage servicing rights financing liability	6
Fair value changes in mortgage loans held for investment	(2)
Amortization of premiums, net of discount accretion	9
Depreciation and amortization for property and equipment and intangible assets	39
Share-based compensation	2
Other loss	0
Repurchases of forward loan assets out of Ginnie Mae securitizations	(527)
Mortgage loans originated and purchased for sale, net of fees	(8,888)
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment	9,405
Excess tax (deficiency) benefit from share based compensation	0
Changes in assets and liabilities:
Advances and other receivables, net	43
Reverse mortgage interests, net	1,544
Other assets	(61)
Payables and accrued liabilities	(68)
Net cash attributable to operating activities	1,251
Investing Activities
Acquisition, net of cash acquired	(33)
Property and equipment additions, net of disposals	(15)
Purchase of forward mortgage servicing rights, net of liabilities incurred	(307)
Net payment related to acquisition of HECM related receivables	0
Net proceeds from acquisition of reverse mortgage servicing portfolio and HECM related receivables	0
Proceeds on sale of forward and reverse mortgage servicing rights	105
Proceeds on sale of assets	0
Purchase of cost-method investments	0
Net cash attributable to investing activities	(250)
Financing Activities
Increase (decrease) in warehouse facilities	(351)
Increase (decrease) in advance facilities	45
Proceeds from issuance of HECM securitizations	343
Repayment of HECM securitizations	(374)
Proceeds from issuance of participating interest financing in reverse mortgage interests	112
Repayment of participating interest financing in reverse mortgage interests	(943)
Proceeds from issuance of excess spread financing	255
Repayment of excess spread financing	(38)
Settlement of excess spread financing	(77)
Repayment of nonrecourse debt - legacy assets	(6)
Repurchase of unsecured senior notes	0
Redemption and repayment of unsecured senior notes	(1,030)
Repurchase of common stock	0
Proceeds from non-controlling interests	3
Excess tax deficiency from share based compensation	0
Surrender of shares relating to stock vesting	0
Debt financing costs	(2)
Dividends to non-controlling interests	0
Net cash attributable to financing activities	(2,063)
Net (decrease) increase in cash and cash equivalents	(1,062)
Cash and cash equivalents - beginning of year	1,623
Cash and cash equivalents - end of year	561	$ 1,623
Supplemental Disclosures of Cash Activities
Cash paid for interest expense	283
Net cash (refunded) paid for income taxes	(37)
Predecessor
Operating Activities
Net income attributable to Successor/Predecessor		154	$ 30	$ 19
Adjustments to reconcile net income to net cash attributable to operating activities:
Provision for deferred income taxes		63	(46)	(5)
Net income (loss) attributable to non-controlling interests		0	1	(3)
Net gain on mortgage loans held for sale		(295)	(607)	(793)
Interest income on reverse mortgage interests		(274)	(490)	(344)
(Gain) loss on sale of assets		(9)	(8)	2
Loss on impairment of assets		0	0	25
MSL related increased obligation		59	0	0
Provision for servicing reserves		70	148	108
Fair value changes and amortization/accretion of mortgage servicing rights/liabilities		(177)	430	484
Fair value changes in excess spread financing		81	12	25
Fair value changes in mortgage servicing rights financing liability		16	(17)	(42)
Fair value changes in mortgage loans held for investment		0	0	0
Amortization of premiums, net of discount accretion		8	82	64
Depreciation and amortization for property and equipment and intangible assets		33	59	63
Share-based compensation		17	17	21
Other loss		3	6	0
Repurchases of forward loan assets out of Ginnie Mae securitizations		(544)	(1,249)	(1,432)
Mortgage loans originated and purchased for sale, net of fees		(12,328)	(19,159)	(20,410)
Sales proceeds and loan payment proceeds for mortgage loans held for sale and held for investment		13,392	20,776	22,031
Excess tax (deficiency) benefit from share based compensation		0	(1)	4
Changes in assets and liabilities:
Advances and other receivables, net		377	(30)	582
Reverse mortgage interests, net		1,601	1,672	572
Other assets		(41)	(75)	(25)
Payables and accrued liabilities		88	(192)	26
Net cash attributable to operating activities		2,294	1,359	972
Investing Activities
Acquisition, net of cash acquired		0	0	0
Property and equipment additions, net of disposals		(40)	(42)	(62)
Purchase of forward mortgage servicing rights, net of liabilities incurred		(134)	(63)	(144)
Net payment related to acquisition of HECM related receivables		(1)	0	0
Net proceeds from acquisition of reverse mortgage servicing portfolio and HECM related receivables		0	16	(3,600)
Proceeds on sale of forward and reverse mortgage servicing rights		0	71	68
Proceeds on sale of assets		13	16	0
Purchase of cost-method investments		0	(4)	0
Net cash attributable to investing activities		(162)	(6)	(3,738)
Financing Activities
Increase (decrease) in warehouse facilities		(585)	863	529
Increase (decrease) in advance facilities		(305)	(241)	(550)
Proceeds from issuance of HECM securitizations		759	707	728
Repayment of HECM securitizations		(448)	(572)	(713)
Proceeds from issuance of participating interest financing in reverse mortgage interests		208	575	4,124
Repayment of participating interest financing in reverse mortgage interests		(1,599)	(2,597)	(1,185)
Proceeds from issuance of excess spread financing		70	0	155
Repayment of excess spread financing		(3)	(23)	(198)
Settlement of excess spread financing		(105)	(207)	0
Repayment of nonrecourse debt - legacy assets		(7)	(15)	(18)
Repurchase of unsecured senior notes		(62)	(123)	(40)
Redemption and repayment of unsecured senior notes		0	0	0
Repurchase of common stock		0	0	(114)
Proceeds from non-controlling interests		0	0	0
Excess tax deficiency from share based compensation		0	0	(4)
Surrender of shares relating to stock vesting		(9)	(4)	(3)
Debt financing costs		(24)	(13)	(13)
Dividends to non-controlling interests		(1)	(5)	0
Net cash attributable to financing activities		(2,111)	(1,655)	2,698
Net (decrease) increase in cash and cash equivalents		21	(302)	(68)
Cash and cash equivalents - beginning of year	$ 596	575	877	945
Cash and cash equivalents - end of year		596	575	877
Supplemental Disclosures of Cash Activities
Cash paid for interest expense		417	765	694
Net cash (refunded) paid for income taxes		$ 36	$ 102	$ 17