Net Revenue (Details - Interest Income and Interest Expense) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Interest income:
Cash and equivalents	$ 10	$ 11	$ 9
Cash segregated under federal or other regulations	26	15	12
Investment securities	1,360	1,241	962
Margin receivables	482	491	320
Loans	104	128	157
Broker-related receivables and other	17	14	3
Subtotal interest income	1,999	1,900	1,463
Other interest revenue(1)	112	109	108
Total interest income	2,111	2,009	1,571
Interest expense:
Brokerage sweep deposits	54	42	4
Bank sweep deposits	11	0	0
Savings deposits	85	9	0
Customer payables	30	22	5
Broker-related payables and other	4	10	0
Other borrowings	9	25	22
Corporate debt	55	46	48
Subtotal interest expense	248	154	79
Other interest expense(2)	11	9	7
Total interest expense	259	163	86
Net interest income	1,852	1,846	1,485
Gain (loss) on interest rate fair value hedge ineffectiveness	$ (3)	$ (19)	$ (14)