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Note 14 - Commitments and Contingencies Legal Proceedings (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)	Aug. 31, 2018 Certificates	Apr. 12, 2018 Certificates	Jun. 05, 2017 Certificates	Dec. 17, 2016 Certificates
Insurance Claims | Total primary reserves | Maximum
Loss Contingencies [Line Items]
Loss Contingency, Legal Actions Commencement, Period	2 years
Insurance Claims | Total pool reserves | Maximum
Loss Contingencies [Line Items]
Loss Contingency, Legal Actions Commencement, Period	3 years
Ocwen | Initial
Loss Contingencies [Line Items]
Insurance Certificates Issued Under Multiple Insurance Policies					9,420
Ocwen | Amended
Loss Contingencies [Line Items]
Insurance Certificates Issued Under Multiple Insurance Policies				8,870
Ocwen | Narrowed Scope
Loss Contingencies [Line Items]
Insurance Certificates Whose Scopes Were Narrowed as a Result of the Confidential Agreement			2,500
Nationstar | Insurance coverage decisions
Loss Contingencies [Line Items]
Insurance Certificates Issued Under Multiple Insurance Policies		3,014
Nationstar | Insurance premium refunds
Loss Contingencies [Line Items]
Insurance Certificates Issued Under Multiple Insurance Policies		2,231
REMIC Residual | Internal Revenue Service (IRS)
Loss Contingencies [Line Items]
Qualified Deposit Assets With The U.S. Department Of Treasury Expected to be Submitted | $	$ 31
Qualified Deposit Assets With The U.S. Department Of Treasury Expected to be Refunded | $	$ 58

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Under Our Master Insurance Policy Any Suit Or Action Arising From Any Right Of The Insured Under The Policy Must Be Commenced Within This Number Of Years After Such Right First Arose

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Qualified Deposit Assets With The U.S. Department Of Treasury Expected to be Submitted

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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