Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Net earnings	$ 8,466	$ 10,459	$ 4,286
Adjustments to reconcile net earnings to net cash provided by/(used for) operating activities:
Depreciation and amortization	1,704	1,328	1,152
Deferred income taxes	(334)	(2,645)	5,458
Share-based compensation	2,018	1,831	1,769
Gain related to extinguishment of unsecured borrowings	(20)	(160)	(114)
Provision for credit losses	1,065	674	657
Changes in operating assets and liabilities:
Customer and other receivables and payables, net	(7,693)	6,416	(26,981)
Collateralized transactions (excluding other secured financings), net	94,991	28,147	10,025
Trading assets	(68,682)	(23,652)	(9,586)
Trading liabilities	(231)	(3,670)	(5,296)
Loans held for sale, net	(1,458)	442	(2,385)
Other, net	(5,958)	(2,606)	526
Net cash provided by/(used for) operating activities	23,868	16,564	(20,489)
Cash flows from investing activities
Purchase of property, leasehold improvements and equipment	(8,443)	(7,982)	(3,184)
Proceeds from sales of property, leasehold improvements and equipment	6,632	3,711	574
Net cash used for business acquisitions	(803)	(162)	(2,383)
Purchase of investments	(29,773)	(9,418)	(17,381)
Proceeds from sales and paydowns of investments	17,812	8,095	13,031
Loans, net (excluding loans held for sale)	(9,661)	(13,064)	(17,034)
Net cash used for investing activities	(24,236)	(18,820)	(26,377)
Cash flows from financing activities
Unsecured short-term borrowings, net	14	2,337	(501)
Other secured financings (short-term), net	(2,050)	586	(405)
Proceeds from issuance of other secured financings (long-term)	7,257	4,996	7,401
Repayment of other secured financings (long-term), including the current portion	(7,468)	(9,482)	(4,726)
Purchase of Trust Preferred securities	(206)	(35)	(237)
Proceeds from issuance of unsecured long-term borrowings	22,381	45,927	58,347
Repayment of unsecured long-term borrowings, including the current portion	(43,936)	(37,243)	(30,748)
Derivative contracts with a financing element, net	3,952	2,294	1,684
Deposits, net	31,214	20,206	14,506
Preferred stock redemption	(1,100)	(650)	(850)
Common stock repurchased	(5,335)	(3,294)	(6,772)
Settlement of share-based awards in satisfaction of withholding tax requirements	(745)	(1,118)	(2,223)
Dividends and dividend equivalents paid on common stock, preferred stock and share-based awards	(2,104)	(1,810)	(1,769)
Proceeds from issuance of preferred stock, net of issuance costs	1,098		1,495
Proceeds from issuance of common stock, including exercise of share-based awards		38	7
Cash settlement of share-based awards			(3)
Other financing, net	395
Net cash provided by financing activities	3,367	22,752	35,206
Net increase/(decrease) in cash and cash equivalents	2,999	20,496	(11,660)
Cash and cash equivalents, beginning balance	130,547	110,051	121,711
Cash and cash equivalents, ending balance	133,546	130,547	110,051
Supplemental disclosures:
Cash payments for interest, net of capitalized interest	18,645	16,721	11,174
Cash payments for income taxes, net	$ 1,266	$ 1,271	$ 1,425