Condensed Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Operating Activities
Net income	$ 424	$ 380
Adjustments to reconcile to net cash provided by (used in) operating activities:
Depreciation and amortization	154	125
Other deferred taxes	98	270
Gain on business combination	0	(81)
Other non-cash items	32	37
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(145)	448
Inventories	(60)	(4)
Drafts and accounts payable	592	(933)
Deferred revenue	(107)	(84)
Taxes	33	(142)
Litigation settlement payments	(20)	(273)
Other	(285)	(295)
Net cash provided by (used in) operating activities	716	(552)
Investing Activities
Property acquisitions	(68)	(45)
Capitalized software expenditures	(32)	(33)
Acquisitions, less cash and cash equivalents acquired	(74)	(108)
Other	(10)	36
Net cash used in investing activities	(184)	(150)
Financing Activities
Proceeds from short-term borrowings	100	0
Repayments of short-term borrowings	(100)	(400)
Common stock transactions:
Issuances	50	43
Share repurchases, including shares surrendered for tax withholding	(127)	(53)
Dividends paid	(53)	(53)
Other	57	38
Net cash used in financing activities	(73)	(425)
Effect of exchange rate changes on cash and cash equivalents	(10)	(9)
Net increase (decrease) in cash and cash equivalents	449	(1,136)
Cash and cash equivalents at beginning of period	2,456	3,149
Cash and cash equivalents at end of period	$ 2,905	$ 2,013