v2.3.0.11
Segment And Geographic Information (Selected Financial Information By Segments) (Details) (USD $)
In Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Total non-interest revenues $ 9,354 $ 7,822 $ 16,988 $ 16,526  
Net interest (72) 141 (71) 509  
Net revenues 9,282 [1] 7,963 [1] 16,917 [1] 17,035 [1]  
Income (loss) from continuing operations before income taxes 1,944 1,703 2,816 4,218  
Provision for (benefit from) income taxes 542 240 286 676  
Income (loss) from continuing operations 1,402 1,463 2,530 3,542  
Discontinued operations:          
Gain (loss) from discontinued operations 5 [2],[3] 866 [2],[3] 6 [2],[3] 767 [2],[3]  
Provision for (benefit from) income taxes 1 [3] 345 [3]   314 [3]  
Net gain (loss) on discontinued operations 4 [3] 521 [3] 6 [3] 453 [3],[4]  
Net income 1,406 1,984 2,536 3,995  
Net income (loss) applicable to noncontrolling interests 213 24 375 259  
Net income applicable to Morgan Stanley 1,193 1,960 2,161 3,736  
Value of performance based fee revenue at risk 262   262   208
Institutional Securities [Member]
          
Total non-interest revenues 5,599 4,640 9,524 9,867  
Net interest (410) (125) (743) (14)  
Net revenues 5,189 [1] 4,515 [1] 8,781 [1] 9,853 [1]  
Income (loss) from continuing operations before income taxes 1,457 1,595 1,854 3,660  
Provision for (benefit from) income taxes 350 220 (28) 550  
Income (loss) from continuing operations 1,107 1,375 1,882 3,110  
Discontinued operations:          
Gain (loss) from discontinued operations 1 [3] (50) [3] (4) [3] (985) [3]  
Provision for (benefit from) income taxes   (23) [3] (2) [3] (22) [3]  
Net gain (loss) on discontinued operations 1 [3] (27) [3] (2) [3] (963) [3],[4]  
Net income 1,108 1,348 1,880 2,147  
Net income (loss) applicable to noncontrolling interests 117 (9) 178 (5)  
Net income applicable to Morgan Stanley 991 1,357 1,702 2,152  
Institutional Securities [Member] | Revel [Member]
          
Discontinued operations:          
Loss on planned disposition       951  
Global Wealth Management Group [Member]
          
Total non-interest revenues 3,128 2,786 6,223 5,700  
Net interest 348 288 690 479  
Net revenues 3,476 [1] 3,074 [1] 6,913 [1] 6,179 [1]  
Income (loss) from continuing operations before income taxes 322 207 670 485  
Provision for (benefit from) income taxes 138 61 229 125  
Income (loss) from continuing operations 184 146 441 360  
Discontinued operations:          
Net income 184 146 441 360  
Net income (loss) applicable to noncontrolling interests 4 36 78 151  
Net income applicable to Morgan Stanley 180 110 363 209  
Asset Management [Member]
          
Total non-interest revenues 655 432 1,289 1,104  
Net interest (10) (22) (18) (41)  
Net revenues 645 [1] 410 [1] 1,271 [1] 1,063 [1]  
Income (loss) from continuing operations before income taxes 165 (86) 292 88  
Provision for (benefit from) income taxes 54 (39) 85 4  
Income (loss) from continuing operations 111 (47) 207 84  
Discontinued operations:          
Gain (loss) from discontinued operations 4 [3] 901 [3] 9 [3] 965 [3]  
Provision for (benefit from) income taxes 1 [3] 360 [3] 1 [3] 330 [3]  
Net gain (loss) on discontinued operations 3 [3] 541 [3] 8 [3] 635 [3],[4]  
Net income 114 494 215 719  
Net income (loss) applicable to noncontrolling interests 92 (3) 119 113  
Net income applicable to Morgan Stanley 22 497 96 606  
Discover [Member]
          
Discontinued operations:          
Gain (loss) from discontinued operations       775 [3]  
Net gain (loss) on discontinued operations       775 [3],[4]  
Net income       775  
Net income applicable to Morgan Stanley       775  
Intersegment Eliminations [Member]
          
Total non-interest revenues (28) (36) (48) (145)  
Net interest       85  
Net revenues (28) [1] (36) [1] (48) [1] (60) [1]  
Income (loss) from continuing operations before income taxes   (13)   (15)  
Provision for (benefit from) income taxes   (2)   (3)  
Income (loss) from continuing operations   (11)   (12)  
Discontinued operations:          
Gain (loss) from discontinued operations   15 [3] 1 [3] 12 [3]  
Provision for (benefit from) income taxes   8 [3] 1 [3] 6 [3]  
Net gain (loss) on discontinued operations   7 [3]   6 [3],[4]  
Net income   (4)   (6)  
Net income applicable to Morgan Stanley   (4)   (6)  
DFS [Member]
          
Discontinued operations:          
Net gain (loss) on discontinued operations       775  
Retail Asset Management [Member]
          
Discontinued operations:          
Net gain (loss) on discontinued operations   $ 514      
[1] In certain management fee arrangements, the Company is entitled to receive performance-based fees (also referred to as incentive fees) when the return on assets under management exceeds certain benchmark returns or other performance targets. In such arrangements, performance fee revenue is accrued (or reversed) quarterly based on measuring account fund performance to date versus the performance benchmark stated in the investment management agreement. The amount of performance-based fee revenue at risk of reversing if fund performance falls below stated investment management agreement benchmarks was approximately $262 million at June 30, 2011 and approximately $208 million at December 31, 2010 (see Note 2 to the consolidated financial statements for the year ended December 31, 2010 included in the Form 10-K).
[2] Amounts included eliminations of intersegment activity.
[3] See Note 1 for discussion of discontinued operations.
[4] Amounts for the three months ended June 30, 2010 included a gain of $514 million related to the Company's sale of Retail Asset Management within the Asset Management business segment. Amounts for the six months ended June 30, 2010 included a loss of $951 million related to the planned disposition of Revel included within the Institutional Securities business segment and a gain of $775 million related to the legal settlement with DFS.