Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Operating Activities
Net Income	$ 1,079	$ 882
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	428	408
Other deferred taxes	499	(15)
Share-based compensation expense	123	113
Gain on business combination	(81)	0
Other non-cash items	53	75
Changes in operating assets and liabilities, net of acquisitions:
Receivables	57	(575)
Inventories	(313)	(1,200)
Drafts and accounts payable	(1,081)	1,636
Deferred revenue	49	122
Taxes	(88)	171
Litigation charges	60	145
Litigation settlement payments	(470)	(26)
Other	(39)	(20)
Net cash provided by operating activities	276	1,716
Investing Activities
Property acquisitions	(151)	(170)
Capitalized software expenditures	(117)	(137)
Acquisitions, less cash and cash equivalents acquired	(577)	(204)
Other	61	81
Net cash used in investing activities	(784)	(430)
Financing Activities
Proceeds from short-term borrowings	1,125	0
Repayments of short-term borrowings	(1,525)	0
Proceeds from Issuance of Long-term Debt	892	0
Repayments of long-term debt	(4)	(23)
Common stock transactions:
Issuances	112	122
Share repurchases, including shares surrendered for tax withholding	(413)	(672)
Dividends paid	(147)	(146)
Other	42	22
Net cash provided by (used in) financing activities	82	(697)
Effect of exchange rate changes on cash and cash equivalents	3	(10)
Net increase (decrease) in cash and cash equivalents	(423)	579
Cash and cash equivalents at beginning of period	3,149	3,612
Cash and cash equivalents at end of period	$ 2,726	$ 4,191