Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net earnings	$ 210.4	$ 224.6
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	111.4	92.8
Deferred income tax provision (benefit)	(3.5)	7.6
Share-based compensation expense	61.6	51.0
Loss (gain) on investments, net and other	3.9	(0.2)
Changes in operating assets and liabilities, net of acquisitions:
Trade accounts receivable	65.7	(3.0)
Trade finance receivables	109.7	91.4
Prepaid and other current assets	0.7	(6.9)
Other long-term assets	12.7	1.9
Accrued and other current liabilities	(63.7)	(67.1)
Deferred revenue	(64.5)	(67.5)
Other long-term liabilities	(9.0)	(28.8)
Other operating assets and liabilities	(12.3)	(1.3)
Net cash provided by operating activities	423.1	294.5
Cash flows from investing activities:
Proceeds from maturities of investments	15.5	50.0
Proceeds from sales of investments	3.3	31.6
Purchases of investments	(18.9)	(3.8)
Cash paid for acquisitions, net of cash acquired	(148.9)
Capitalization of software development costs	(62.8)	(57.8)
Purchases of property and equipment	(10.0)	(13.1)
Other investing activities		1.0
Net cash provided by (used in) investing activities	(221.8)	7.9
Cash flows from financing activities:
Treasury stock acquired	(405.5)	(224.0)
Repurchases of stock to satisfy employee tax withholding obligations	(23.0)	(11.8)
Proceeds from stock options exercised and other	37.1	38.2
Excess tax benefit from share-based compensation expense	12.6	5.9
Repayments of borrowings and capital lease obligations	(4.7)	(6.0)
Net cash used in financing activities	(383.5)	(197.7)
Effect of exchange rate changes on cash and cash equivalents	(19.0)	4.2
Net change in cash and cash equivalents	(201.2)	108.9
Cash and cash equivalents, beginning of period	1,660.9	1,368.6
Cash and cash equivalents, end of period	1,459.7	1,477.5
Supplemental disclosure of cash flow information:
Cash paid for interest	11.6	11.5
Cash paid for income taxes, net of amounts refunded	$ 13.5	$ 42.6