Loans Receivable, Net (Details - TDRs Average Investment and Income) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	$ 302	$ 353	$ 400
TDRs, Interest Income Recognized	20	22	25
One- To Four-Family [Member]
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	177	201	221
TDRs, Interest Income Recognized	8	9	9
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	125	152	179
TDRs, Interest Income Recognized	$ 12	$ 13	$ 16

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.

No definition available.

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- Definition

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5258-111524

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- Definition

Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired.

+ References

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