Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Revenue:
Subscription and maintenance	$ 3,317	$ 3,560	$ 3,683
Professional services	326	351	379
Software fees and other	382	351	350
Total revenue	4,025	4,262	4,412
Expenses:
Costs of licensing and maintenance	283	297	296
Cost of professional services	300	338	353
Amortization of capitalized software costs	256	273	271
Selling and marketing	1,006	1,060	1,104
General and administrative	367	377	395
Product development and enhancements	560	603	574
Depreciation and amortization of other intangible assets	106	129	144
Other expenses, net	12	23	205
Total expenses before interest and income taxes	2,890	3,100	3,342
Income from continuing operations before interest and income taxes	1,135	1,162	1,070
Interest expense, net	51	47	54
Income from continuing operations before income taxes	1,084	1,115	1,016
Income tax expense	315	305	129
Income from continuing operations	769	810	887
Income from discontinued operations, net of income taxes	14	36	27
Net income	$ 783	$ 846	$ 914
Basic income per common share:
Income from continuing operations (in dollars per share)	$ 1.79	$ 1.83	$ 1.97
Income from discontinued operations (in dollars per share)	0.03	0.08	0.06
Net income (in dollars per share)	$ 1.82	$ 1.91	$ 2.03
Basic weighted average shares used in computation	426	439	446
Diluted income per common share:
Income from continuing operations (in dollars per share)	$ 1.78	$ 1.82	$ 1.96
Income from discontinued operations (in dollars per share)	0.03	0.08	0.06
Net income (in dollars per share)	$ 1.81	$ 1.90	$ 2.02
Diluted weighted average shares used in computation	427	441	448