Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Cash flows from operating activities:
Net income	$ 734	$ 688	$ 788	$ 691
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	42	42	130	120
Amortization of acquired intangible assets	10	19	55	58
Share-based compensation expense	37	39	120	112
Deferred income taxes	18	9	1	25
Tax benefit from share-based compensation plans	19	20	64	68
Excess tax benefit from share-based compensation plans	(19)	(18)	(62)	(59)
Other	1	3	3	14
Total adjustments	108	114	311	338
Changes in operating assets and liabilities:
Accounts receivable	297	215	(124)	(130)
Prepaid expenses, income taxes receivable and other assets	102	132	84	17
Accounts payable	(4)	(4)	80	42
Accrued compensation and related liabilities	42	53	(5)	(6)
Deferred revenue	(218)	(226)	(36)	(41)
Income taxes payable	256	208	257	195
Other liabilities	(39)	(42)	73	79
Total changes in operating assets and liabilities	436	336	329	156
Net cash provided by operating activities	1,278	1,138	1,428	1,185
Cash flows from investing activities:
Purchases of available-for-sale debt securities	(149)	(80)	(492)	(803)
Sales of available-for-sale debt securities	116	55	382	1,470
Maturities of available-for-sale debt securities	49	33	138	254
Net change in money market funds and other cash equivalents held to satisfy customer fund obligations	5	(46)	89	(20)
Net change in customer fund deposits	(5)	46	(89)	46
Purchases of property and equipment	(33)	(31)	(125)	(166)
Acquisitions of intangible assets	0	0	0	(3)
Other	0	(1)	15	2
Net cash (used in) provided by investing activities	(17)	(24)	(82)	780
Cash flows from financing activities:
Repayment of debt	(500)	0	(500)	0
Net proceeds from issuance of treasury stock under employee stock plans	54	48	160	235
Purchases of treasury stock	(207)	(250)	(793)	(1,110)
Cash dividends paid to stockholders	(45)	0	(134)	0
Excess tax benefit from share-based compensation plans	19	18	62	59
Net cash used in financing activities	(679)	(184)	(1,205)	(816)
Effect of exchange rates on cash and cash equivalents	0	6	(4)	6
Net increase in cash and cash equivalents	582	936	137	1,155
Cash and cash equivalents at beginning of period	277	433	722	214
Cash and cash equivalents at end of period	$ 859	$ 1,369	$ 859	$ 1,369