Consolidated Statements of Changes in Total Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings		Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	[1]	Employee Stock Trusts	Accumulated Other Comprehensive Income (Loss)	Common Stock Held in Treasury at Cost	Common Stock Issued to Employee Stock Trusts	Noncontrolling Interests
Balance at beginning of period at Dec. 31, 2019		$ 8,520		$ 23,935	$ 70,589		$ (100)		$ 2,918	$ (2,788)	$ (18,727)	$ (2,918)	$ 1,148
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series J preferred stock		0
Share-based award activity				(507)					170		788	(170)
Net income applicable to Morgan Stanley	$ 1,698				1,698
Preferred stock dividends	(108)				(108)	[2]
Common stock dividends	(561)				(561)	[2]
Repurchases of common stock and employee tax withholdings											(1,782)
Issuance of common stock for the acquisition of Eaton Vance				0							0
Net income applicable to noncontrolling interests	82												82
Net change in Accumulated other comprehensive income (loss)	5,021									4,883			138
Other net increases (decreases)				0	0								0
Balance at end of period at Mar. 31, 2020	87,228	8,520	$ 20	23,428	71,518				3,088	2,095	(19,721)	(3,088)	1,368
Balance at beginning of period at Dec. 31, 2020	103,149	9,250		25,546	78,694				3,043	(1,962)	(9,767)	(3,043)	1,368
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Redemption of Series J preferred stock		(1,500)
Share-based award activity				(332)					818		1,020	(818)
Net income applicable to Morgan Stanley	4,120				4,120
Preferred stock dividends	(138)				(138)	[2]
Common stock dividends	(635)				(635)	[2]
Repurchases of common stock and employee tax withholdings											(2,582)
Issuance of common stock for the acquisition of Eaton Vance				2,185							3,132
Net income applicable to noncontrolling interests	48												48
Net change in Accumulated other comprehensive income (loss)	(853)									(792)			(61)
Other net increases (decreases)				7	(7)								(26)
Balance at end of period at Mar. 31, 2021	$ 107,588	$ 7,750	$ 20	$ 27,406	$ 82,034				$ 3,861	$ (2,754)	$ (8,197)	$ (3,861)	$ 1,329

[1] See Notes 2 and 18 in the 2020 Form 10-K for further information regarding cumulative adjustments for accounting changes.

[2] See Note 17 for information regarding dividends per share for each class of stock.