Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Operating activities from continuing operations:
Net income	$ 914	$ 955	$ 951
Income from discontinued operations	(15)	(16)	(28)
Income from continuing operations	899	939	923
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	426	475	399
Deferred income taxes	(69)	13	(16)
Provision for bad debts	7	7	(1)
Share-based compensation expense	82	78	89
Asset impairments and other non-cash items	10	12	20
Foreign currency transaction losses	10	16	8
Changes in other operating assets and liabilities, net of effect of acquisitions:
Decrease (increase) in trade accounts receivable	42	35	(45)
(Decrease) increase in deferred revenue	(103)	(128)	97
Decrease in taxes payable, net	(331)	(56)	(46)
Increase in accounts payable, accrued expenses and other	82	6	6
(Decrease) increase in accrued salaries, wages and commissions	(28)	(42)	58
Changes in other operating assets and liabilities	(30)	35	(4)
Net cash provided by operating activities - continuing operations	997	1,390	1,488
Investing activities from continuing operations:
Acquisitions of businesses, net of cash acquired, and purchased software	(133)	(76)	(387)
Purchases of property and equipment	(65)	(50)	(72)
Proceeds from sale of assets	12	0	7
Capitalized software development costs	(40)	(165)	(180)
Purchases of investments	(9)	(346)	(108)
Proceeds from sale of investments	0	0	207
Maturities of investments	191	163	80
Decrease in restricted cash	50	0	0
Other investing activities	(1)	1	(2)
Net cash provided by (used in) investing activities - continuing operations	5	(473)	(455)
Financing activities from continuing operations:
Dividends paid	(453)	(463)	(192)
Purchases of common stock, including accelerated share repurchase	(507)	(493)	(1,053)
Notional pooling borrowings	3,702	1,143	476
Notional pooling repayments	(3,734)	(1,139)	(331)
Debt borrowings	498	0	0
Debt repayments	(15)	(13)	(268)
Debt issuance costs	(5)	0	(2)
Exercise of common stock options and other	93	27	40
Net cash used in financing activities - continuing operations	(421)	(938)	(1,330)
Effect of exchange rate changes on cash	62	(83)	(67)
Net change in cash and cash equivalents - continuing operations	643	(104)	(364)
Cash provided by (used in) operating activities - discontinued operations	16	18	(10)
Cash provided by investing activities - discontinued operations	0	0	4
Net effect of discontinued operations on cash and cash equivalents	16	18	(6)
Increase (decrease) in cash and cash equivalents	659	(86)	(370)
Cash and cash equivalents at beginning of period	2,593	2,679	3,049
Cash and cash equivalents at end of period	$ 3,252	$ 2,593	$ 2,679