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
Net income	$ 1,338	$ 1,403	$ 1,202
Discontinued operation – gain on sale, net of tax	0	0	(72)
Adjustments to reconcile to net cash provided by operating activities:
Depreciation	146	140	139
Amortization	445	411	357
Provision for bad debts	28	30	18
Other deferred taxes	606	164	128
Share-based compensation expense	167	154	137
Gain on business combination	(81)	0	0
Impairment of capitalized software held for sale	10	0	72
Impairment of an equity investment	191	0	0
Other non-cash items	56	66	12
Changes in operating assets and liabilities, net of acquisitions:
Receivables	326	(770)	(673)
Inventories	(59)	(878)	367
Drafts and accounts payable	(125)	2,027	533
Deferred revenue	(25)	66	42
Taxes	(80)	15	33
Litigation charges	72	149	213
Litigation settlement payments	(483)	(26)	(26)
Other	(49)	(1)	(144)
Net cash provided by operating activities	2,483	2,950	2,338
Investing Activities
Property acquisitions	(246)	(225)	(233)
Capitalized software expenditures	(160)	(178)	(155)
Acquisitions, net of cash and cash equivalents acquired	(1,873)	(1,156)	(292)
Proceeds from sale of business	0	0	109
Restricted cash for litigation charges	32	(32)	0
Other	38	89	(53)
Net cash used in investing activities	(2,209)	(1,502)	(624)
Financing Activities
Proceeds from short-term borrowings	2,225	400	1,000
Repayments of short-term borrowings	(2,625)	0	(1,000)
Proceeds from issuances of long-term debt	1,798	0	1,689
Repayments of long-term debt	(1,143)	(430)	(1,730)
Common stock transactions:
Issuances	166	167	367
Share repurchases, including shares surrendered for tax withholding	(1,214)	(1,874)	(2,050)
Dividends paid	(194)	(195)	(171)
Other	31	27	54
Net cash used in financing activities	(956)	(1,905)	(1,841)
Effect of exchange rate changes on cash and cash equivalents	(11)	(6)	8
Net decrease in cash and cash equivalents	(693)	(463)	(119)
Cash and cash equivalents at beginning of year	3,149	3,612	3,731
Cash and cash equivalents at end of year	2,456	3,149	3,612
Cash paid for:
Interest	207	228	244
Income taxes, net of refunds	55	337	347
Non-cash item:
Fair value of debt assumed on acquisition	$ (635)	$ 0	$ (1,891)