Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Subscription and maintenance	$ 3,279	$ 3,317	$ 3,560
Professional services	301	326	351
Software fees and other	456	382	351
Total revenue	4,036	4,025	4,262
Expenses:
Costs of licensing and maintenance	273	283	297
Cost of professional services	300	300	338
Amortization of capitalized software costs	243	256	273
Selling and marketing	1,028	1,006	1,060
General and administrative	375	367	377
Product development and enhancements	586	560	603
Depreciation and amortization of other intangible assets	77	106	129
Other expenses, net	19	12	23
Total expenses before interest and income taxes	2,901	2,890	3,100
Income from continuing operations before interest and income taxes	1,135	1,135	1,162
Interest expense, net	62	51	47
Income from continuing operations before income taxes	1,073	1,084	1,115
Income tax expense	298	315	305
Income from continuing operations	775	769	810
Income from discontinued operations, net of income taxes	0	14	36
Net income	$ 775	$ 783	$ 846
Basic income per common share:
Income from continuing operations (in dollars per share)	$ 1.85	$ 1.79	$ 1.83
Income from discontinued operations (in dollars per share)	0.00	0.03	0.08
Net income (in dollars per share)	$ 1.85	$ 1.82	$ 1.91
Basic weighted average shares used in computation	414	426	439
Diluted income per common share:
Income from continuing operations (in dollars per share)	$ 1.85	$ 1.78	$ 1.82
Income from discontinued operations (in dollars per share)	0.00	0.03	0.08
Net income (in dollars per share)	$ 1.85	$ 1.81	$ 1.90
Diluted weighted average shares used in computation	415	427	441