Shareholders' Equity (Details - Reclassification Out Of Accumulated Other Comprehensive Loss) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Gains (losses) on securities and other, net	$ 23		$ (64)		$ 43	$ (53)
Interest income	409		560		852	1,115
Reclassification into earnings, net	264		295		520	687
Income tax (expense) benefit	(68)		(76)		(143)	(178)
Other Non-interest expense	(20)		(23)		(51)	(41)
Net income	196	$ 181	219	$ 290	377	509
Available-for-sale securities \| Reclassification out of Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income (Loss) [Line Items]
Gains (losses) on securities and other, net	22		(65)		42	(54)
Interest income	0		0		(1)	(1)
Reclassification into earnings, net	22		(65)		41	(55)
Income tax (expense) benefit	(6)		17		(11)	14
Net income	$ 16		$ (48)		$ 30	$ (41)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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