Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities:
Net income/(loss)	$ 1,058	$ 2,540
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	768	759
Stock-based compensation	116	112
Deferred taxes	(515)	134
Gain on equity investments	0	(34)
Net losses/(income) from unconsolidated investees	1,112	(42)
Impairment of Bakkt investment	40	0
Other	31	36
Changes in assets and liabilities:
Customer accounts receivable	(72)	(109)
Other current and non-current assets	(170)	(63)
Section 31 fees payable	1	(193)
Deferred revenue	130	163
Other current and non-current liabilities	4	54
Total adjustments	1,404	(410)
Net cash provided by operating activities	2,462	2,130
Investing activities:
Capital expenditures	(125)	(117)
Capitalized software development costs	(200)	(211)
Purchases of invested margin deposits	(6,935)	(2,828)
Proceeds from sales of invested margin deposits	4,285	3,281
Cash paid for acquisitions, net of cash acquired	(57)	(10)
Purchases of equity and equity method investments	(69)	(23)
Other	(1)	(4)
Net cash provided by/(used in) investing activities	(2,361)	1,325
Financing activities:
Proceeds from debt facilities, net	7,891	0
Repayments of debt facilities	(2,702)	(1,248)
Redemption of commercial paper, net	(1,012)	(1,081)
Repurchases of common stock	(632)	0
Dividends to stockholders	(640)	(561)
Change in cash and cash equivalent margin deposits and guaranty funds	13,503	24,094
Payments relating to treasury shares received for restricted stock tax payments and stock option exercises	(72)	(69)
Other	37	31
Net cash provided by financing activities	16,373	21,166
Effect of exchange rate changes on cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds	(41)	(4)
Net increase in cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds	16,433	24,617
Cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds at beginning of period	147,976	83,619
Cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds at end of period	164,409	108,236
Supplemental cash flow disclosure:
Cash paid for income taxes	710	809
Cash paid for interest	368	329
Reconciliation of the components of cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds to the balance sheet:
Cash and cash equivalents	1,183	618
Short-term restricted cash and cash equivalents	6,032	1,045
Long-term restricted cash and cash equivalents	405	398
Cash and cash equivalent margin deposits and guaranty funds	156,789	106,175
Total	164,409	108,236
Euroclear
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of Coinbase investment	(41)	0
Investing activities:
Proceeds from sale of Coinbase investment	741	0
Coinbase
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of Coinbase investment	0	(1,227)
Investing activities:
Proceeds from sale of Coinbase investment	$ 0	$ 1,237