CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Operating Activities
Net income	$ 14,957	$ 12,311	$ 10,866
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Client incentives	10,295	8,367	6,664
Share-based compensation	602	542	416
Depreciation and amortization of property, equipment, technology and intangible assets	861	804	767
Deferred income taxes	(336)	873	307
VE territory covered losses incurred	(43)	(147)	(37)
(Gains) losses on equity investments, net	264	(712)	(101)
Other	(94)	(109)	(44)
Change in operating assets and liabilities:
Settlement receivable	(397)	(468)	1,858
Accounts receivable	(97)	(343)	(43)
Client incentives	(9,351)	(7,510)	(8,081)
Other assets	(666)	(147)	(402)
Accounts payable	67	88	21
Settlement payable	1,256	679	(2,384)
Accrued and other liabilities	1,055	929	923
Accrued litigation	476	70	(290)
Net cash provided by (used in) operating activities	18,849	15,227	10,440
Investing Activities
Purchases of property, equipment and technology	(970)	(705)	(736)
Investment securities:
Purchases	(5,997)	(5,111)	(2,075)
Proceeds from maturities and sales	4,585	5,701	4,510
Acquisitions, net of cash and restricted cash acquired	(1,948)	(75)	(77)
Purchases of other investments	(86)	(71)	(267)
Other investing activities	128	109	72
Net cash provided by (used in) investing activities	(4,288)	(152)	1,427
Financing Activities
Repurchase of class A common stock	(11,589)	(8,676)	(8,114)
Repayments of debt	(1,000)	(3,000)	0
Dividends paid	(3,203)	(2,798)	(2,664)
Proceeds from issuance of senior notes	3,218	0	7,212
Cash proceeds from issuance of class A common stock under equity plans	196	208	190
Restricted stock and performance-based shares settled in cash for taxes	(120)	(144)	(160)
Payments to settle derivative instruments	0	0	(333)
Other financing activities	(198)	0	(99)
Net cash provided by (used in) financing activities	(12,696)	(14,410)	(3,968)
Effect of exchange rate changes on cash, cash equivalents, restricted cash and restricted cash equivalents	(1,287)	(37)	440
Increase (decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents	578	628	8,339
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of year	19,799	19,171	10,832
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of year	20,377	19,799	19,171
Supplemental Disclosure
Cash paid for income taxes, net	3,741	3,012	2,671
Interest payments on debt	607	643	537
Accruals related to purchases of property, equipment and technology	$ 56	$ 41	$ 38