Severance and Exit Costs (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended	9 Months Ended	6 Months Ended					1 Months Ended	9 Months Ended		22 Months Ended	9 Months Ended		22 Months Ended	1 Months Ended	9 Months Ended		65 Months Ended	9 Months Ended		65 Months Ended
	Jul. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Employee	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member] Selling and marketing [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member] Product development and enhancements [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member] General and administrative [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member] Costs of licensing and maintenance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2012 [Member] Severance [Member] Costs of professional services [Member]	Mar. 31, 2010 Restructuring Activity Fiscal Plan 2010 [Member] Employee	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2010 [Member] Severance [Member]	Dec. 31, 2010 Restructuring Activity Fiscal Plan 2010 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2010 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2010 [Member] Facility Abandonment [Member]	Dec. 31, 2010 Restructuring Activity Fiscal Plan 2010 [Member] Facility Abandonment [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2010 [Member] Facility Abandonment [Member]	Aug. 31, 2006 Restructuring Activity Fiscal Plan 2007 [Member] Employee	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2007 [Member] Severance [Member]	Dec. 31, 2010 Restructuring Activity Fiscal Plan 2007 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2007 [Member] Severance [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2007 [Member] Facility Abandonment [Member]	Dec. 31, 2010 Restructuring Activity Fiscal Plan 2007 [Member] Facility Abandonment [Member]	Dec. 31, 2011 Restructuring Activity Fiscal Plan 2007 [Member] Facility Abandonment [Member]
Severance and Exit Costs Activity
Accrued beginning balance			$ 0							$ 4	$ 46		$ 1	$ 2			$ 4	$ 8		$ 46	$ 60
Expense			49	27	9	5	2	1
Change in estimate			(5)							(1)	(3)		0	0			0	1		0	1
Payments			(25)							(3)	(34)		0	0			(2)	(4)		(8)	(14)
Accretion and other			0								(1)			0			0	0		1	1
Accrued ending balance		19	19							0	8	0	1	2	1		2	5	2	39	48	39
Severance and Exit Costs (Textual) [Abstract]
Workforce reduction	400								1,000							3,100
Cumulative amount recognized		$ 44										$ 43			$ 2				$ 220			$ 119