Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended					0 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013 Intuit Financial Services [Member]	Oct. 31, 2012 Intuit Financial Services [Member]	Oct. 31, 2013 Intuit Health [Member]	Sep. 17, 2012 Intuit Websites [Member]
Discontinued Operations (Textuals)
Gross proceeds from sale of business	$ 1,025	$ 60	$ 1,025			$ 60
Net gain on disposal of business			36		10	32
Net revenue from discontinued operations				80
Discontinued operation, income before income tax				11
Pre-tax loss on sale of discontinued operations	40	53			(4)
Tax effect on sale of discontinued operations					$ (14)