Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Operating activities from continuing operations:
Net income	$ 955	$ 951	$ 827
Income from discontinued operations	0	(13)	(4)
Income from continuing operations	955	938	823
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	477	401	379
Provision for deferred income taxes	13	(16)	140
Provision for bad debts	7	(1)	6
Share-based compensation expense	78	89	80
Asset impairments and other non-cash items	12	20	2
Foreign currency transaction losses	16	8	4
Changes in other operating assets and liabilities, net of effect of acquisitions:
Decrease (increase) in trade accounts receivable	35	(45)	140
(Decrease) increase in deferred revenue	(128)	97	(128)
Decrease in taxes payable, net	(56)	(46)	(8)
Increase in accounts payable, accrued expenses and other	6	6	6
(Decrease) increase in accrued salaries, wages and commissions	(42)	58	(62)
Changes in other operating assets and liabilities	35	(4)	(5)
Net cash provided by operating activities - continuing operations	1,408	1,505	1,377
Investing activities from continuing operations:
Acquisitions of businesses, net of cash acquired, and purchased software	(76)	(387)	(252)
Purchases of property and equipment	(50)	(72)	(92)
Proceeds from divestiture of assets	0	7	13
Capitalized software development costs	(165)	(180)	(170)
Purchases of investments	(346)	(108)	(209)
Proceeds from sale of investments	0	207	9
Maturities of investments	163	80	19
Other investing activities	1	(2)	(18)
Net cash used in investing activities - continuing operations	(473)	(455)	(700)
Financing activities from continuing operations:
Dividends paid	(463)	(192)	(82)
Purchases of common stock, including accelerated share repurchase	(493)	(1,053)	(235)
Debt borrowings	1,143	476	260
Debt repayments	(1,152)	(599)	(273)
Debt issuance costs	0	(2)	0
Exercise of common stock options and other	27	40	10
Net cash used in financing activities - continuing operations	(938)	(1,330)	(320)
Effect of exchange rate changes on cash	(83)	(67)	89
Net change in cash and cash equivalents - continuing operations	(86)	(347)	446
Cash (used in) provided by operating activities - discontinued operations	0	(27)	4
Cash provided by investing activities - discontinued operations	0	4	16
Net effect of discontinued operations on cash and cash equivalents	0	(23)	20
(Decrease) increase in cash and cash equivalents	(86)	(370)	466
Cash and cash equivalents at beginning of period	2,679	3,049	2,583
Cash and cash equivalents at end of period	$ 2,593	$ 2,679	$ 3,049