Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Cash flows from operating activities:
Net income	$ 2,066	$ 2,062	$ 1,826
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	187	166	189
Amortization of acquired intangible assets	559	197	29
Non-cash operating lease cost	83	62	60
Share-based compensation expense	1,308	753	435
Deferred income taxes	120	(42)	(179)
Other	2	(39)	6
Total adjustments	2,259	1,097	540
Originations of loans held for sale	0	(41)	(566)
Sale and principal payments of loans held for sale	0	143	482
Changes in operating assets and liabilities:
Accounts receivable	(31)	(104)	(59)
Income taxes receivable	29	(51)	53
Prepaid expenses and other assets	(121)	30	(31)
Accounts payable	(95)	206	33
Accrued compensation and related liabilities	(357)	(70)	100
Deferred revenue	71	22	38
Operating lease liabilities	(83)	(66)	(61)
Other liabilities	151	22	59
Total changes in operating assets and liabilities	(436)	(11)	132
Net cash provided by operating activities	3,889	3,250	2,414
Cash flows from investing activities:
Purchases of corporate and customer fund investments	(830)	(1,489)	(701)
Sales of corporate and customer fund investments	1,524	229	130
Maturities of corporate and customer fund investments	234	550	596
Purchases of property and equipment	(157)	(53)	(59)
Capitalization of internal use software	(72)	(72)	(78)
Acquisitions of businesses, net of cash acquired	(5,682)	(3,064)	0
Originations of term loans to small businesses	(933)	(232)	(243)
Principal repayments of term loans from small businesses	519	136	287
Other	(24)	30	(29)
Net cash used in investing activities	(5,421)	(3,965)	(97)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	4,700	0	1,983
Proceeds from borrowings under unsecured revolving credit facility	0	0	1,000
Repayments on borrowings under unsecured revolving credit facility	0	(1,000)	0
Proceeds from borrowings under secured revolving credit facility	182	0	0
Repayment of debt	0	(338)	(50)
Proceeds from issuance of stock under employee stock plans	162	196	211
Payments for employee taxes withheld upon vesting of restricted stock units	(611)	(383)	(244)
Cash paid for purchases of treasury stock	(1,861)	(1,005)	(323)
Dividends and dividend rights paid	(774)	(646)	(561)
Net change in funds receivable and funds payable and amounts due to customers	(56)	2	19
Other	(10)	(2)	(1)
Net cash provided by (used in) financing activities	1,732	(3,176)	2,034
Effect of exchange rates on cash, cash equivalents, restricted cash, and restricted cash equivalents	(22)	13	(6)
Net increase (decrease) in cash, cash equivalents, restricted cash, and restricted cash equivalents	178	(3,878)	4,345
Cash, cash equivalents, restricted cash, and restricted cash equivalents at beginning of period	2,819	6,697	2,352
Cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	2,997	2,819	6,697
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	2,796	2,562	6,442
Restricted cash and restricted cash equivalents included in funds receivable and amounts held for customers	201	257	255
Total cash, cash equivalents, restricted cash, and restricted cash equivalents at end of period	2,997	2,819	6,697
Supplemental disclosure of cash flow information:
Interest paid	67	30	14
Income taxes paid	303	578	493
Supplemental schedule of non-cash investing activities:
Issuance of common stock in business combinations	$ 6,316	$ 3,798	$ 0