Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Operating Activities
Net income	$ 1,403	$ 1,202	$ 1,263
Discontinued operation - gain on sale, net of tax	0	(72)	0
Adjustments to reconcile to net cash provided by operating activities:
Depreciation	140	139	148
Amortization	411	357	326
Provision for bad debts	30	18	17
Other deferred taxes	242	184	161
Share-based compensation expense	154	137	114
Impairment of capitalized software held for sale	0	72	0
Other non-cash items	66	12	(20)
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(770)	(673)	(133)
Inventories	(878)	367	(782)
Drafts and accounts payable	2,027	533	1,340
Deferred revenue	66	42	27
Taxes	15	33	88
Litigation charges (credit)	149	213	(20)
Litigation settlement payments	(26)	(26)	(350)
Deferred tax (benefit) expense on litigation	(78)	(56)	116
Other	(1)	(144)	21
Net cash provided by operating activities	2,950	2,338	2,316
Investing Activities
Property acquisitions	(225)	(233)	(199)
Capitalized software expenditures	(178)	(155)	(179)
Acquisitions, net of cash and cash equivalents acquired	(1,156)	(292)	(18)
Proceeds from sale of businesses	0	109	1
Restricted cash for litigation charges	(32)	0	55
Other	89	(53)	31
Net cash used in investing activities	(1,502)	(624)	(309)
Financing Activities
Proceeds from short-term borrowings	400	1,000	5
Repayments of short-term borrowings	0	(1,000)	(6)
Proceeds from issuances of long-term debt	0	1,689	0
Repayments of long-term debt	(430)	(1,730)	(218)
Common stock transactions:
Issuances	167	367	212
Share repurchases, including shares surrendered for tax withholding	(1,874)	(2,050)	(323)
Dividends paid	(195)	(171)	(131)
Other	27	54	40
Net cash used in financing activities	(1,905)	(1,841)	(421)
Effect of exchange rate changes on cash and cash equivalents	(6)	8	36
Net increase (decrease) in cash and cash equivalents	(463)	(119)	1,622
Cash and cash equivalents at beginning of year	3,612	3,731	2,109
Cash and cash equivalents at end of year	3,149	3,612	3,731
Cash paid for:
Interest	228	244	188
Income taxes, net of refunds	337	347	234
Non-cash item:
Fair value of debt assumed on acquisition	$ 0	$ (1,891)	$ 0