Consolidated Cash Flow Statement - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash flows from operating activities
Net income	$ 9,805	$ 7,689
Adjustments to reconcile net income to net cash provided by (used for) operating activities:
Stock-based compensation expense	1,231	1,348
Depreciation and amortization	3,516	2,850
Provision for credit losses	149	529
Other operating adjustments	121	44
Changes in assets and liabilities:
Trading assets, net of Trading liabilities	12,358	(53,171)
Securities borrowed	(11,321)	12,458
Securities loaned	2,398	(2,615)
Customer and other receivables and other assets	(10,317)	3,884
Customer and other payables and other liabilities	12,556	(15,265)
Securities purchased under agreements to resell	(26,612)	12,338
Securities sold under agreements to repurchase	(4,322)	14,127
Net cash provided by (used for) operating activities	(10,438)	(15,784)
Proceeds from (payments for):
Other assets—Premises, equipment and software	(2,583)	(2,483)
Changes in loans, net	(13,934)	(4,186)
AFS securities:
Purchases	(27,717)	(9,522)
Proceeds from sales	5,540	5,315
Proceeds from paydowns and maturities	15,616	12,017
HTM securities:
Purchases	(3,523)	0
Proceeds from paydowns and maturities	8,279	4,922
Other investing activities	(988)	(346)
Net cash provided by (used for) investing activities	(19,310)	5,717
Net proceeds from (payments for):
Other secured financings	1,384	146
Deposits	11,519	(11,188)
Issuance of preferred stock, net of issuance costs	995	0
Proceeds from issuance of Borrowings	80,369	60,916
Payments for:
Borrowings	(54,596)	(48,847)
Repurchases of common stock and employee tax withholdings	(3,347)	(4,836)
Cash dividends	(4,553)	(4,286)
Other financing activities	(270)	(325)
Net cash provided by (used for) financing activities	31,501	(8,420)
Effect of exchange rate changes on cash and cash equivalents	99	(1,239)
Net increase (decrease) in cash and cash equivalents	1,852	(19,726)
Cash and cash equivalents, at beginning of period	89,232	128,127
Cash and cash equivalents, at end of period	91,084	108,401
Supplemental Disclosure of Cash Flow Information
Cash payments for interest	34,498	30,299
Cash payments for income taxes, net of refunds	$ 1,449	$ 1,248