Consolidated Statements of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities:
Net income	$ 1,233	$ 1,903
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	510	506
Stock-based compensation	76	73
Deferred taxes	(147)	154
Net losses/(income) from unconsolidated investees	57	(34)
Other	21	24
Changes in assets and liabilities:
Customer accounts receivable	(177)	(74)
Other current and non-current assets	(48)	(79)
Section 31 fees payable	115	(44)
Deferred revenue	292	279
Other current and non-current liabilities	(166)	126
Total adjustments	492	(296)
Net cash provided by operating activities	1,725	1,607
Investing activities:
Capital expenditures	(70)	(95)
Capitalized software development costs	(134)	(145)
Purchases of invested margin deposits	(1,431)	(1,644)
Proceeds from sales of invested margin deposits	3,815	2,222
Cash paid for acquisitions, net of cash acquired	(36)	(6)
Purchases of equity and equity method investments	(43)	(23)
Other	1	(2)
Net cash provided by investing activities	2,843	1,544
Financing activities:
Proceeds from debt facilities, net	5,186	5
Redemption of commercial paper, net	(1,012)	(2,097)
Repurchases of common stock	(632)	0
Dividends to stockholders	(427)	(374)
Change in cash and cash equivalent margin deposits and guaranty funds	16,163	7,780
Payments relating to treasury shares received for restricted stock tax payments and stock option exercises	(71)	(67)
Other	31	15
Net cash provided by financing activities	19,238	5,262
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	(19)	0
Net increase in cash and cash equivalents, restricted cash and cash equivalents, and cash and cash equivalent margin deposits and guaranty funds	23,787	8,413
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	171,763	92,032
Supplemental cash flow disclosure:
Cash paid for income taxes	524	414
Cash paid for interest	226	211
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	830	602
Short-term restricted cash and cash equivalents	6,045	1,046
Long-term restricted cash and cash equivalents	405	398
Cash and cash equivalent margin deposits and guaranty funds	164,483	89,986
Total	171,763	92,032
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