Consolidated Comprehensive Income Statement - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,662	$ 3,724	$ 8,913	$ 11,404
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(268)	(78)	(661)	(256)
Change in net unrealized gains (losses) on available-for-sale securities	(1,307)	(256)	(4,778)	(1,039)
Pension and other	5	5	13	22
Change in net debt valuation adjustment	816	147	2,628	470
Total other comprehensive income (loss)	(754)	(182)	(2,798)	(803)
Comprehensive income	1,908	3,542	6,115	10,601
Net income applicable to noncontrolling interests	30	17	120	66
Other comprehensive income (loss) applicable to noncontrolling interests	(17)	(4)	(142)	(64)
Comprehensive income applicable to Morgan Stanley	$ 1,895	$ 3,529	$ 6,137	$ 10,599