Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Operating activities from continuing operations:
Net income	$ 775	$ 783	$ 846
Income from discontinued operations	0	(14)	(36)
Income from continuing operations	775	769	810
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	320	362	402
Deferred income taxes	(21)	(115)	(72)
Provision for bad debts	4	0	3
Share-based compensation expense	108	97	87
Other non-cash items	5	0	5
Foreign currency transaction (gains) losses	(4)	4	(2)
Changes in other operating assets and liabilities, net of effect of acquisitions:
(Increase) decrease in trade accounts receivable	(85)	54	79
Increase (decrease) in deferred revenue	24	(105)	(138)
(Decrease) increase in taxes payable, net	(110)	28	(98)
Decrease in accounts payable, accrued expenses and other	(25)	(62)	(9)
Increase (decrease) in accrued salaries, wages and commissions	32	(18)	(40)
Changes in other operating assets and liabilities	16	20	3
Net cash provided by operating activities - continuing operations	1,039	1,034	1,030
Investing activities from continuing operations:
Acquisitions of businesses, net of cash acquired, and purchased software	(1,288)	(648)	(38)
Purchases of property and equipment	(47)	(48)	(53)
Proceeds from sale of short-term investments	0	48	0
Other investing activities	(2)	3	0
Net cash used in investing activities - continuing operations	(1,337)	(645)	(91)
Financing activities from continuing operations:
Dividends paid	(428)	(429)	(444)
Purchases of common stock	(100)	(707)	(215)
Notional pooling borrowings	2,374	3,899	5,371
Notional pooling repayments	(2,351)	(3,877)	(5,207)
Debt borrowings	850	1,100	0
Debt repayments	(6)	(409)	(508)
Debt issuance costs	(5)	(4)	0
Exercise of common stock options	26	8	26
Other financing activities	0	(24)	0
Net cash provided by (used in) financing activities - continuing operations	360	(443)	(977)
Effect of exchange rate changes on cash	(103)	24	(532)
Net change in cash and cash equivalents - continuing operations	(41)	(30)	(570)
Cash used in operating activities - discontinued operations	0	(12)	(48)
Cash provided by investing activities - discontinued operations	0	50	170
Net effect of discontinued operations on cash and cash equivalents	0	38	122
(Decrease) increase in cash and cash equivalents	(41)	8	(448)
Cash and cash equivalents at beginning of period	2,812	2,804	3,252
Cash and cash equivalents at end of period	$ 2,771	$ 2,812	$ 2,804