Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities
Net earnings	$ 7,475	$ 4,442	$ 8,354
Adjustments to reconcile net earnings to net cash provided by/(used for) operating activities
Depreciation and amortization	1,738	1,869	1,904
Deferred income taxes	(356)	726	1,339
Share-based compensation	1,319	2,849	4,035
Gain on sale of hedge fund administration business	(494)
Changes in operating assets and liabilities
Cash and securities segregated for regulatory and other purposes	10,817	(10,532)	(17,094)
Net receivables from brokers, dealers and clearing organizations	(2,838)	(3,780)	201
Net payables to customers and counterparties	(17,661)	13,883	(4,637)
Securities borrowed, net of securities loaned	23,031	8,940	19,638
Securities sold under agreements to repurchase, net of securities purchased under agreements to resell and federal funds sold	53,527	122	(10,092)
Financial instruments owned, at fair value	(48,783)	5,085	(9,231)
Financial instruments sold, but not yet purchased, at fair value	(18,867)	4,243	11,602
Other, net	3,971	(5,346)	(11,376)
Net cash provided by/(used for) operating activities	12,879	22,501	(5,357)
Cash flows from investing activities
Purchase of property, leasehold improvements and equipment	(961)	(1,184)	(1,227)
Proceeds from sales of property, leasehold improvements and equipment	49	78	72
Business acquisitions, net of cash acquired	(593)	(431)	(804)
Proceeds from sales of investments	1,195	2,645	1,371
Purchase of available-for-sale securities	(5,220)	(2,752)	(1,885)
Proceeds from sales of available-for-sale securities	4,537	3,129	2,288
Loans held for investment, net	(2,741)	(856)	(800)
Net cash provided by/(used for) investing activities	(3,734)	629	(985)
Cash flows from financing activities
Unsecured short-term borrowings, net	(1,952)	(3,780)	1,196
Other secured financings (short-term), net	1,540	(1,195)	12,689
Proceeds from issuance of other secured financings (long-term)	4,687	9,809	5,500
Repayment of other secured financings (long-term), including the current portion	(11,576)	(8,878)	(4,849)
Proceeds from issuance of unsecured long-term borrowings	27,734	29,169	20,231
Repayment of unsecured long-term borrowings, including the current portion	(36,435)	(29,187)	(22,607)
Derivative contracts with a financing element, net	1,696	1,602	1,222
Deposits, net	24,015	7,540	(849)
Preferred stock repurchased		(3,857)
Common stock repurchased	(4,640)	(6,048)	(4,183)
Dividends and dividend equivalents paid on common stock, preferred stock and restricted stock units	(1,086)	(2,771)	(1,443)
Proceeds from issuance of preferred stock, net of issuance costs	3,087
Proceeds from issuance of common stock, including stock option exercises	317	368	581
Excess tax benefit related to share-based compensation	130	358	352
Cash settlement of share-based compensation	(1)	(40)	(1)
Net cash provided by/(used for) financing activities	7,516	(6,910)	7,839
Net increase in cash and cash equivalents	16,661	16,220	1,497
Cash and cash equivalents, beginning of year	56,008	39,788	38,291
Cash and cash equivalents, end of year	72,669	56,008	39,788
SUPPLEMENTAL DISCLOSURES:
Cash payments for interest, net of capitalized interest	9,250	8,050	6,740
Cash payments for income taxes, net of refunds	1,880	1,780	4,480
Non-cash activities:
Debt assumed in connection with business acquisitions	77	2,090	90
Common stock issued in connection with business acquisitions		103
Approximate increase in assets upon adoption of ASU No. 2009-17			3,000
Approximate increase in liabilities upon adoption of ASU No. 2009-17			$ 3,000