Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net Revenues
Interest revenue		$ 1,432	$ 1,892	$ 4,626	$ 5,817
Interest expense		(89)	(261)	(322)	(896)
Net interest revenue		1,343	1,631	4,304	4,921
Other	[1]	64	49	161	198
Total net revenues		2,448	2,711	7,515	8,115
Expenses Excluding Interest
Compensation and benefits		840	857	2,556	2,514
Professional services		194	168	574	516
Occupancy and equipment		155	144	449	408
Advertising and market development		66	71	203	217
Communications		73	63	226	187
Depreciation and amortization	[2]	97	82	284	235
Amortization of acquired intangible assets	[2]	25	6	43	20
Regulatory fees and assessments		36	30	106	92
Other		73	54	250	190
Total expenses excluding interest		1,559	1,475	4,691	4,379
Income before taxes on income		889	1,236	2,824	3,736
Taxes on income		191	285	660	884
Net Income		698	951	2,164	2,852
Preferred stock dividends and other	[3]	83	38	171	127
Net Income Available to Common Stockholders		$ 615	$ 913	$ 1,993	$ 2,725
Weighted-Average Common Shares Outstanding:
Basic (shares)		1,289	1,300	1,288	1,320
Diluted (shares)	[4]	1,294	1,308	1,294	1,329
Earnings Per Common Shares Outstanding:
Basic (USD per share)		$ 0.48	$ 0.70	$ 1.55	$ 2.06
Diluted (USD per share)	[4]	$ 0.48	$ 0.70	$ 1.54	$ 2.05
Antidilutive stock options and restricted stock awards excluded from the calculation of diluted EPS (in shares)		19	17	20	18
Asset management and administration fees [Member]
Net Revenues
Asset management and administration fees and Trading revenue		$ 860	$ 825	$ 2,488	$ 2,366
Trading revenue [Member]
Net Revenues
Asset management and administration fees and Trading revenue	[1]	$ 181	$ 206	$ 562	$ 630

[1] Beginning in the first quarter of 2020, order flow revenue was reclassified from other revenue to trading revenue. Prior period amounts have been reclassified to reflect this change.

[2] Beginning in the third quarter of 2020, amortization of acquired intangible assets was reclassified from depreciation and amortization. Prior periods have been reclassified to reflect this change.

[3] Includes preferred stock dividends and undistributed earnings and dividends allocated to non-vested restricted stock units.

[4] Antidilutive stock options and restricted stock units excluded from the calculation of diluted EPS totaled 19 million and 17 million shares for the third quarters of 2020 and 2019, respectively, and 20 million and 18 million shares for the first nine months of 2020 and 2019, respectively.