Loans Receivable, Net (Details - TDRs Average Investment and Income) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	$ 516	$ 803	$ 1,467
TDRs, Interest Income Recognized	26	34	53
Proceeds from sale of loans	40	813	0
One- To Four-Family [Member]
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	303	576	1,205
TDRs, Interest Income Recognized	9	16	33
Proceeds from sale of loans		800
Home Equity [Member]
Financing Receivable, Impaired [Line Items]
TDRs, Average Recorded Investment	213	227	262
TDRs, Interest Income Recognized	$ 17	$ 18	$ 20