Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Operating activities from continuing operations:
Net income	$ 783	$ 846	$ 914
Income from discontinued operations	(14)	(36)	(27)
Income from continuing operations	769	810	887
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	362	402	415
Deferred income taxes	(115)	(72)	(69)
Provision for bad debts	0	3	7
Share-based compensation expense	97	87	81
Asset impairments and other non-cash items	0	5	10
Foreign currency transaction losses (gains)	4	(2)	10
Changes in other operating assets and liabilities, net of effect of acquisitions:
Decrease in trade accounts receivable	54	79	42
Decrease in deferred revenue	(105)	(138)	(103)
Increase (decrease) in taxes payable, net	28	(98)	(331)
(Decrease) increase in accounts payable, accrued expenses and other	(62)	(9)	82
Decrease in accrued salaries, wages and commissions	(18)	(40)	(28)
Changes in other operating assets and liabilities	20	3	(30)
Net cash provided by operating activities - continuing operations	1,034	1,030	973
Investing activities from continuing operations:
Acquisitions of businesses, net of cash acquired, and purchased software	(648)	(38)	(133)
Purchases of property and equipment	(48)	(53)	(65)
Proceeds from sale of assets	0	0	12
Capitalized software development costs	0	0	(40)
Purchases of investments	0	0	(9)
Maturities of investments	0	0	191
Proceeds from sale of short-term investments	48	0	0
Decrease in restricted cash	4	0	50
Other investing activities	(1)	0	(1)
Net cash (used in) provided by investing activities - continuing operations	(645)	(91)	5
Financing activities from continuing operations:
Dividends paid	(429)	(444)	(453)
Purchases of common stock	(707)	(215)	(507)
Notional pooling borrowings	3,899	5,371	3,702
Notional pooling repayments	(3,877)	(5,207)	(3,734)
Debt borrowings	1,100	0	498
Debt repayments	(409)	(508)	(15)
Debt issuance costs	(4)	0	(5)
Exercise of common stock options	8	26	93
Other financing activities	(24)	0	0
Net cash used in financing activities - continuing operations	(443)	(977)	(421)
Effect of exchange rate changes on cash	24	(532)	62
Net change in cash and cash equivalents - continuing operations	(30)	(570)	619
Cash (used in) provided by operating activities - discontinued operations	(12)	(48)	40
Cash provided by investing activities - discontinued operations	50	170	0
Net effect of discontinued operations on cash and cash equivalents	38	122	40
Increase (decrease) in cash and cash equivalents	8	(448)	659
Cash and cash equivalents at beginning of period	2,804	3,252	2,593
Cash and cash equivalents at end of period	$ 2,812	$ 2,804	$ 3,252