Discontinued Operations Net Income (Loss) from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue from discontinued operations	$ 59	$ 61
Income (loss) from discontinued operations before income taxes	4	(5)
Net income (loss) from discontinued operations	0	(3)
Income tax (expense) benefit from discontinued operations	(3)	0
Demandforce
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue from discontinued operations	25	31
Income (loss) from discontinued operations before income taxes	(4)	(14)
Net income (loss) from discontinued operations	(3)	(9)
QuickBase
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue from discontinued operations	20	17
Income (loss) from discontinued operations before income taxes	4	3
Net income (loss) from discontinued operations	3	2
Quicken
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenue from discontinued operations	14	13
Income (loss) from discontinued operations before income taxes	4	6
Net income (loss) from discontinued operations	$ 3	$ 4