Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue:
Total revenue	$ 895	$ 1,034	$ 1,833	$ 2,059
Expenses:
Amortization of capitalized software costs	49	67	109	137
Selling and marketing	252	244	487	490
General and administrative	99	97	203	204
Product development and enhancements	158	161	320	319
Depreciation and amortization of other intangible assets	28	27	54	53
Other expenses, net	4	9	107	20
Total expenses before interest and income taxes	728	752	1,564	1,514
Income before interest and income taxes	167	282	269	545
Interest expense, net	19	24	39	49
Income before income taxes	148	258	230	496
Income tax expense (benefit)	19	74	(65)	134
Net income	$ 129	$ 184	$ 295	$ 362
Basic income per common share:
Basic income per common share (in dollars per share)	$ 0.31	$ 0.44	$ 0.70	$ 0.86
Basic weighted average shares used in computation	413	415	414	415
Diluted income per common share:
Diluted income per common share (in dollars per share)	$ 0.31	$ 0.44	$ 0.70	$ 0.86
Diluted weighted average shares used in computation	416	416	416	416
License and Maintenance
Revenue:
Total revenue	$ 824	$ 959	$ 1,694	$ 1,909
Expenses:
Costs of licensing and maintenance and professional services	74	73	150	144
Professional Services
Revenue:
Total revenue	71	75	139	150
Expenses:
Costs of licensing and maintenance and professional services	$ 64	$ 74	$ 134	$ 147